'use strict'
/**
 * roster.js — Planification (« Roster AI »).
 *
 * Orchestre le solveur d'horaires OR-Tools (service roster-solver) avec les
 * données réelles de l'ERPNext de facturation :
 *   - techniciens HUMAINS  : Dispatch Technician (resource_type='human')
 *   - compétences          : tags (_user_tags) du tech
 *   - disponibilité        : status ('En pause'), absence_from/until, Tech Availability (Approuvé)
 *   - modèles de shifts     : Shift Template
 *   - besoins de couverture : Shift Requirement (→ « dispo vs requis »)
 *   - assignations          : Shift Assignment (statut Proposé/Publié)
 *
 * Le solveur ne fait QUE proposer ; /publish écrit les Shift Assignment.
 * Aucune paie : on planifie + approuve, c'est tout.
 *
 * Routes (préfixe /roster) :
 *   GET  /roster/technicians                 → techs humains + skills + indispos
 *   GET  /roster/templates                   → modèles de shifts
 *   POST /roster/templates                   → créer un modèle
 *   GET  /roster/requirements?start=&days=   → besoins de couverture
 *   POST /roster/requirements                → créer un besoin
 *   GET  /roster/assignments?start=&days=    → assignations existantes
 *   GET  /roster/coverage?start=&days=       → dispo vs requis (par besoin)
 *   POST /roster/generate {start,days,weights} → propose un horaire (n'écrit rien)
 *   POST /roster/publish {assignments}       → écrit les Shift Assignment (Publié)
 *   POST /roster/availability {…}            → demande congé/pause (Tech Availability)
 *   POST /roster/availability/:name/approve  → approuve une demande
 *   POST /roster/technician/:id/pause {paused,reason} → met/retire un tech en pause
 */
const http = require('http')
const crypto = require('crypto')
const { json, parseBody, log, readJsonFile, writeJsonFile } = require('./helpers')
const erp = require('./erp')
const cfg = require('./config')
const fs = require('fs')
const path = require('path')
const POLICY_FILE = path.join(__dirname, '..', 'data', 'dispatch-policy.json')
// Niveau requis PAR JOB, persistant. (L'API Custom Field d'ERPNext v16 échoue sur ce doctype custom → store hub durable.)
const JOB_LEVELS_FILE = path.join(__dirname, '..', 'data', 'job-levels.json')
function getJobLevels () { try { return JSON.parse(fs.readFileSync(JOB_LEVELS_FILE, 'utf8')) || {} } catch { return {} } }
function setJobLevel (name, level) {
  const m = getJobLevels(); const lv = Math.max(0, Math.min(5, Math.round(Number(level) || 0)))
  if (lv > 0) m[String(name)] = lv; else delete m[String(name)]
  try { fs.mkdirSync(path.dirname(JOB_LEVELS_FILE), { recursive: true }) } catch (e) {}
  fs.writeFileSync(JOB_LEVELS_FILE, JSON.stringify(m)); return m
}
// PRIORITÉ de dispatch persistante par job (même notion que la priorité des conversations : urgent|high|normal|low).
// Store durable = SURCHARGE de la priorité ERPNext pour le dispatch (client commercial/SLA/contrainte).
const JOB_FLAGS_FILE = path.join(__dirname, '..', 'data', 'job-flags.json')
function getJobFlags () { try { return JSON.parse(fs.readFileSync(JOB_FLAGS_FILE, 'utf8')) || {} } catch { return {} } }
const PRIO_LEVELS = ['urgent', 'high', 'normal', 'low']
function setJobFlag (name, priority) {
  const m = getJobFlags(); const p = String(priority || '').toLowerCase()
  if (PRIO_LEVELS.includes(p)) m[String(name)] = p; else delete m[String(name)] // niveau valide → surcharge ; sinon (vide/« aucune ») → retire
  try { fs.mkdirSync(path.dirname(JOB_FLAGS_FILE), { recursive: true }) } catch (e) {}
  fs.writeFileSync(JOB_FLAGS_FILE, JSON.stringify(m)); return m
}

const SOLVER_URL = cfg.ROSTER_SOLVER_URL || 'http://roster-solver:8090'
const PAUSE_STATUS = 'En pause'
const AVAIL_STATUS = 'Disponible'

// ── Date helpers (local, sans dépendance) ──────────────────────────────────
function iso (d) { return d.toISOString().slice(0, 10) }
function parseISO (s) { const [y, m, dd] = s.split('-').map(Number); return new Date(Date.UTC(y, m - 1, dd)) }
function addDays (d, n) { const r = new Date(d); r.setUTCDate(r.getUTCDate() + n); return r }
function rangeDates (start, days) {
  const s = parseISO(start); const out = []
  for (let i = 0; i < days; i++) out.push(iso(addDays(s, i)))
  return out
}
function splitCsv (s) {
  return String(s || '').split(',').map(x => x.trim()).filter(Boolean)
}

// POST au solveur via le module http natif (comme erpFetch — fiable dans le
// process long du hub, contrairement au fetch global undici).
function postSolver (path, body) {
  const data = JSON.stringify(body)
  const u = new URL(SOLVER_URL + path)
  return new Promise((resolve, reject) => {
    const req = http.request({
      hostname: u.hostname, port: u.port || 80, path: u.pathname + u.search, method: 'POST',
      headers: { 'Content-Type': 'application/json', 'Content-Length': Buffer.byteLength(data) },
      timeout: 30000,
    }, (res) => {
      let d = ''
      res.on('data', c => { d += c })
      res.on('end', () => { try { resolve(JSON.parse(d)) } catch { resolve({ status: 'ERROR', message: 'réponse solveur invalide' }) } })
    })
    req.on('error', reject)
    req.on('timeout', () => { req.destroy(); reject(new Error('solveur: timeout')) })
    req.write(data); req.end()
  })
}

const OSRM_URL = cfg.OSRM_URL || 'http://osrm:5000'
// Matrice de TEMPS DE ROUTE (minutes) via OSRM /table, dans l'ordre attendu par route_solver : jobs d'abord, PUIS domiciles des véhicules.
// null si un nœud n'a pas de coordonnées → le solveur retombe proprement sur le haversine (pas de dépendance dure à OSRM).
async function osrmMatrix (jobs, vehicles) {
  const ok = (a, b) => a != null && b != null && isFinite(+a) && isFinite(+b) && (Math.abs(+a) > 0.01 || Math.abs(+b) > 0.01)
  // Ordre des nœuds = celui de route_solver : jobs d'abord, PUIS domiciles des véhicules. null = sans coordonnées.
  const nodes = []
  for (const j of jobs) nodes.push(ok(j.lat, j.lon) ? [+j.lon, +j.lat] : null)
  for (const v of vehicles) nodes.push(ok(v.home_lat, v.home_lon) ? [+v.home_lon, +v.home_lat] : null)
  const N = nodes.length
  const withIdx = []; for (let i = 0; i < N; i++) if (nodes[i]) withIdx.push(i)
  if (withIdx.length < 2) return null // pas assez de points géolocalisés → le solveur retombe sur le haversine
  const coords = withIdx.map(i => nodes[i])
  const path = '/table/v1/driving/' + coords.map(c => c[0].toFixed(6) + ',' + c[1].toFixed(6)).join(';') + '?annotations=duration'
  const u = new URL(OSRM_URL + path)
  const raw = await new Promise((resolve, reject) => {
    const rq = http.request({ hostname: u.hostname, port: u.port || 80, path: u.pathname + u.search, method: 'GET', timeout: 20000 }, (r) => {
      let d = ''; r.on('data', c => { d += c }); r.on('end', () => resolve(d))
    })
    rq.on('error', reject); rq.on('timeout', () => { rq.destroy(); reject(new Error('osrm timeout')) }); rq.end()
  })
  const j = JSON.parse(raw)
  if (j.code !== 'Ok' || !Array.isArray(j.durations)) throw new Error('osrm code ' + (j.code || '?'))
  // Matrice NxN complète en MINUTES : temps de route OSRM pour les paires géolocalisées, 0 (neutre) pour tout nœud sans coords.
  const M = Array.from({ length: N }, () => new Array(N).fill(0))
  for (let a = 0; a < withIdx.length; a++) for (let b = 0; b < withIdx.length; b++) { const s = j.durations[a][b]; M[withIdx[a]][withIdx[b]] = (s == null ? 0 : Math.round(s / 60 * 10) / 10) }
  return M
}

const sleep = (ms) => new Promise(r => setTimeout(r, ms))
// Réessai des écritures ERPNext. Le shim frappe_pg tourne en SERIALIZABLE → sur
// les lignes chaudes (Dispatch Technician maj en continu par le GPS/dispatch) un
// SELECT…FOR UPDATE peut lever "could not serialize access due to concurrent
// update" (HTTP 500). La requête a été rollback → réessayer est sûr (idempotent).
async function retryWrite (fn, tries = 5) {
  let r
  for (let i = 0; i < tries; i++) {
    r = await fn()
    if (r.ok || (r.status && r.status < 500)) return r
    await sleep(120 * (i + 1))
  }
  return r
}

// ── Lecture des techniciens humains + compétences + indisponibilités ────────
async function fetchTechnicians () {
  const rows = await erp.list('Dispatch Technician', {
    filters: [['resource_type', '=', 'human']],
    fields: ['name', 'technician_id', 'full_name', 'status', 'color_hex', 'tech_group', 'efficiency', 'skills',
      'cost_salary_h', 'cost_charges_pct', 'cost_other_h', 'traccar_device_id',
      'absence_from', 'absence_until', 'employee', 'phone', '_user_tags', 'skill_levels', 'skill_eff'],
    limit: 500,
  })
  return rows.map(t => ({
    id: t.technician_id || t.name,
    name: t.full_name || t.technician_id,
    status: t.status,
    group: t.tech_group || '',
    efficiency: Number(t.efficiency) || 1,
    cost_salary_h: Number(t.cost_salary_h) || 0,
    cost_charges_pct: Number(t.cost_charges_pct) || 0,
    cost_other_h: Number(t.cost_other_h) || 0,
    cost_h: Math.round(((Number(t.cost_salary_h) || 0) * (1 + (Number(t.cost_charges_pct) || 0) / 100) + (Number(t.cost_other_h) || 0)) * 100) / 100,
    color: t.color_hex || '#1976d2',
    phone: t.phone,
    traccar_device_id: t.traccar_device_id || '', // appareil Traccar associé (pour GPS live + tracé) — éditable inline
    employee: t.employee,
    skills: splitCsv(t.skills || t._user_tags),  // champ skills (ou tags Frappe)
    skill_levels: (() => { try { return JSON.parse(t.skill_levels || '{}') } catch { return {} } })(), // {compétence: niveau 1–5}
    skill_eff: (() => { try { return JSON.parse(t.skill_eff || '{}') } catch { return {} } })(), // {compétence: facteur d'efficacité (vitesse)}
    absence_from: t.absence_from,
    absence_until: t.absence_until,
  }))
}

// Construit, pour chaque tech, la liste des dates indisponibles dans l'horizon.
async function buildUnavailability (techs, dateList) {
  const start = dateList[0]
  const end = dateList[dateList.length - 1]
  const byTech = {}
  for (const t of techs) byTech[t.id] = new Set()

  // 1) status « En pause » → indispo sur tout l'horizon (pause active)
  for (const t of techs) {
    if (t.status === PAUSE_STATUS) dateList.forEach(d => byTech[t.id].add(d))
    // 2) fenêtre d'absence du Dispatch Technician
    if (t.absence_from && t.absence_until) {
      for (const d of dateList) if (d >= t.absence_from && d <= t.absence_until) byTech[t.id].add(d)
    }
  }
  // 3) Tech Availability approuvées qui chevauchent l'horizon
  const avs = await erp.list('Tech Availability', {
    filters: [['status', '=', 'Approuvé'], ['from_date', '<=', end], ['to_date', '>=', start]],
    fields: ['technician', 'from_date', 'to_date', 'availability_type'],
    limit: 500,
  })
  for (const a of avs) {
    if (!byTech[a.technician]) continue
    for (const d of dateList) if (d >= a.from_date && d <= a.to_date) byTech[a.technician].add(d)
  }
  return byTech
}

// ── Modèles + besoins ───────────────────────────────────────────────────────
async function fetchTemplates () {
  const rows = await erp.list('Shift Template', {
    filters: [['active', '=', 1]],
    fields: ['name', 'template_name', 'start_time', 'end_time', 'hours', 'color', 'zone', 'default_required', 'required_skills', 'on_call'],
    limit: 100,
  })
  return rows
}

async function fetchRequirements (start, days) {
  const dates = rangeDates(start, days)
  return erp.list('Shift Requirement', {
    filters: [['requirement_date', 'in', dates]],
    fields: ['name', 'requirement_date', 'shift_template', 'zone', 'required_count', 'required_skills'],
    limit: 1000,
  })
}

async function fetchAssignments (start, days) {
  const dates = rangeDates(start, days)
  const rows = await erp.list('Shift Assignment', {
    filters: [['assignment_date', 'in', dates]],
    fields: ['name', 'technician', 'technician_name', 'assignment_date', 'shift_template', 'zone', 'hours', 'status', 'source'],
    limit: 2000,
  })
  // Normaliser vers la forme canonique {tech, date, shift} (= sortie du solveur + UI)
  return rows.map(r => ({
    name: r.name, tech: r.technician, tech_name: r.technician_name, date: r.assignment_date,
    shift: r.shift_template, zone: r.zone, hours: r.hours, status: r.status, source: r.source,
  }))
}

// ── Construit le payload du solveur + l'appelle ─────────────────────────────
async function generate (start, days, weights) {
  const dateList = rangeDates(start, days)
  // Séquentiel volontaire : le backend frappe (peu de workers) reset des
  // connexions sous rafale concurrente → erp.list renvoie [] par intermittence.
  const techs = await fetchTechnicians()
  const templates = await fetchTemplates()
  const requirements = await fetchRequirements(start, days)
  const unavail = await buildUnavailability(techs, dateList)

  const shift_templates = templates.map(t => ({
    id: t.name, name: t.template_name || t.name,
    hours: Number(t.hours) || 8,
  }))

  const technicians = techs.map(t => ({
    id: t.id, name: t.name, skills: t.skills,
    max_hours_week: 40, max_days: 5, cost_per_h: t.cost_h || 0,
    zone_home: null, preferred_off: [], time_factor: t.efficiency || 1,
    unavailable: [...unavail[t.id]],
  }))

  const coverage = requirements.map(r => ({
    date: r.requirement_date, shift: r.shift_template, zone: r.zone || '—',
    required: Number(r.required_count) || 1,
    required_skills: splitCsv(r.required_skills),
  }))

  const payload = { horizon: { start, days }, shift_templates, technicians, coverage, weights: weights || undefined, max_seconds: 12 }

  const result = await postSolver('/solve', payload)
  // enrichir avec le nom + couleur pour l'UI
  const nameById = Object.fromEntries(techs.map(t => [t.id, t.name]))
  const colorByTpl = Object.fromEntries(templates.map(t => [t.name, t.color || '#1976d2']))
  for (const a of (result.assignments || [])) {
    a.tech_name = nameById[a.tech] || a.tech
    a.color = colorByTpl[a.shift] || '#1976d2'
  }
  return { ...result, counts: { technicians: technicians.length, templates: shift_templates.length, requirements: coverage.length } }
}

// Écrit les assignations retenues comme Shift Assignment (Publié).
async function publish (assignments) {
  const created = []; const errors = []
  for (const a of assignments || []) {
    const r = await retryWrite(() => erp.create('Shift Assignment', {
      technician: a.tech, technician_name: a.tech_name || '',
      assignment_date: a.date, shift_template: a.shift, zone: a.zone || '',
      hours: Number(a.hours) || 0, status: 'Publié', source: a.source || 'solveur',
    }))
    if (r.ok) created.push(r.name); else errors.push({ a, error: r.error })
  }
  return { ok: errors.length === 0, created: created.length, errors }
}

// dispo vs requis : pour chaque besoin, compte les assignations publiées correspondantes
async function coverage (start, days) {
  const reqs = await fetchRequirements(start, days)
  const asgs = await fetchAssignments(start, days)
  const key = (d, s, z) => `${d}|${s}|${z || '—'}`
  const counts = {}
  for (const a of asgs) {
    if (a.status === 'Annulé') continue
    counts[key(a.date, a.shift, a.zone)] = (counts[key(a.date, a.shift, a.zone)] || 0) + 1
  }
  return reqs.map(r => {
    const assigned = counts[key(r.requirement_date, r.shift_template, r.zone)] || 0
    const required = Number(r.required_count) || 0
    return { date: r.requirement_date, shift: r.shift_template, zone: r.zone || '—', required, assigned, shortfall: Math.max(0, required - assigned) }
  })
}

// ── Prise de RDV : disponibilité consciente du roster ──────────────────────
// Renvoie les fenêtres libres où un tech EN SHIFT publié ce jour-là, avec la
// compétence requise, est disponible (trous dans son shift moins les jobs déjà
// pointés). Sert aux 2 canaux : on propose au client, ou on valide son choix.
function timeToH (t) { if (!t) return 0; const [h, m] = String(t).split(':').map(Number); return (h || 0) + (m || 0) / 60 }
function nowFrappe () { return new Date().toLocaleString('sv-SE', { timeZone: 'America/Toronto' }).replace('T', ' ') } // "YYYY-MM-DD HH:MM:SS"
function minutesBetween (a, b) { if (!a || !b) return null; const ms = Date.parse(String(b).replace(' ', 'T')) - Date.parse(String(a).replace(' ', 'T')); return isFinite(ms) ? Math.max(0, Math.round(ms / 60000)) : null }
function hToTime (h) { const hh = Math.floor(h); const mm = Math.round((h - hh) * 60); return String(hh).padStart(2, '0') + ':' + String(mm).padStart(2, '0') }

// ── DURÉE D'UNE JOB = modèle ADDITIF par caractéristiques (hors transport) ───────────────────────────────
// Base (1) + Σ caractéristiques cochées (×qté), × vitesse tech. Table ÉDITABLE (tableur inline Ops), persistée en JSON.
// `minutes` = seed (réglé à la main, inspiré du tableur dispatch) ; `learned_min`+`samples` = calibration future par
// régression sur les durées RÉELLES (geofence/checkpoints) — « triangulation » des temps par caractéristique.
const JOBCHAR_PATH = '/app/data/job-characteristics.json'
const JOBCHAR_SEED = { items: [
  { id: 'install_resid', cat: 'base', label: 'Installation fibre résidentielle', minutes: 120, per_qty: false, keywords: 'installation,raccordement' },
  { id: 'install_comm', cat: 'base', label: 'Installation commerciale', minutes: 240, per_qty: false, keywords: 'commercial' },
  { id: 'predrop', cat: 'base', label: 'Pré-drop (pose)', minutes: 120, per_qty: false, keywords: 'pre-drop,predrop,pré-drop' },
  { id: 'repar_fibre', cat: 'base', label: 'Réparation / bris de fibre', minutes: 105, per_qty: false, keywords: 'réparation,reparation,bris,fibre' },
  { id: 'depan_wifi', cat: 'base', label: 'Dépannage Wifi / réseau', minutes: 90, per_qty: false, keywords: 'wifi,sans-fil,internet' },
  { id: 'changer_secteur', cat: 'base', label: 'Changer de secteur', minutes: 75, per_qty: false, keywords: 'secteur' },
  { id: 'retrait', cat: 'base', label: 'Retrait / désinstallation', minutes: 60, per_qty: false, keywords: 'retrait,désinstall,desinstall' },
  { id: 'chgmt_equip', cat: 'base', label: "Changement d'équipement (ONU/modem/Hx)", minutes: 45, per_qty: false, keywords: 'changement,onu,modem,équipement,equipement,hx' },
  { id: 'migration_tv', cat: 'base', label: 'Migration TV / boîtier', minutes: 45, per_qty: false, keywords: 'migration,tv,boîtier,boitier' },
  { id: 'ata', cat: 'base', label: 'Activation téléphonie (ATA)', minutes: 45, per_qty: false, keywords: 'ata,téléphonie,telephonie' },
  { id: 'enfoui', cat: 'addon', label: 'Drop enfoui (au lieu d’aérien)', minutes: 75, per_qty: false, keywords: 'enfoui,enterré,enterre,souterrain' },
  { id: 'echelle', cat: 'addon', label: 'Aérien avec échelle / poteau', minutes: 30, per_qty: false, keywords: 'aérien,aerien,poteau,échelle,echelle' },
  { id: 'dist_poteau', cat: 'addon', label: 'Distance poteau → maison > 60 m', minutes: 30, per_qty: false, keywords: '' },
  { id: 'boitier_tv', cat: 'addon', label: 'Boîtier TV / STB supplémentaire', minutes: 30, per_qty: true, keywords: 'stb,boîtier tv,boitier tv' },
  { id: 'mesh', cat: 'addon', label: "Point d'accès mesh supplémentaire", minutes: 20, per_qty: true, keywords: 'mesh,borne' },
  { id: 'tel_ata', cat: 'addon', label: 'Ligne téléphonie / ATA ajoutée', minutes: 30, per_qty: true, keywords: '' },
  { id: 'epissure', cat: 'addon', label: 'Épissure / fusion (par connecteur)', minutes: 20, per_qty: true, keywords: 'épissure,epissure,fusion' },
  { id: 'wifi_complexe', cat: 'addon', label: 'Config Wifi complexe (multi-SSID/VLAN)', minutes: 30, per_qty: false, keywords: '' },
  { id: 'tel_complexe', cat: 'addon', label: 'Téléphonie complexe (PBX/multi-lignes)', minutes: 30, per_qty: false, keywords: 'pbx' },
  { id: 'test_otdr', cat: 'addon', label: 'Test / certification (OTDR, photos)', minutes: 20, per_qty: false, keywords: 'otdr,certification' },
  { id: 'acces_difficile', cat: 'addon', label: 'Accès difficile (hauteur, vide sanitaire)', minutes: 30, per_qty: false, keywords: '' },
  { id: 'tampon_client', cat: 'modifier', label: 'Tampon coordination client', minutes: 15, per_qty: false, keywords: '' },
  { id: 'junior_install', cat: 'modifier', label: 'Tech junior sur install (pénalité)', minutes: 90, per_qty: false, keywords: '' },
] }
function readJobChar () { try { return JSON.parse(require('fs').readFileSync(JOBCHAR_PATH, 'utf8')) } catch (e) { return JSON.parse(JSON.stringify(JOBCHAR_SEED)) } }
function writeJobChar (items) { try { require('fs').writeFileSync(JOBCHAR_PATH, JSON.stringify({ items, updated: nowFrappe() }, null, 2)); return true } catch (e) { return false } }
// Durée estimée (minutes, hors transport) à partir des caractéristiques cochées : picks = [{id, qty}].
function estimateMinutes (picks, items) {
  const by = {}; for (const i of (items || readJobChar().items)) by[i.id] = i
  let m = 0; for (const p of (picks || [])) { const it = by[p.id]; if (!it) continue; const mn = (it.learned_min != null ? it.learned_min : it.minutes) || 0; m += mn * (it.per_qty ? (Number(p.qty) || 1) : 1) }
  return Math.round(m)
}
// Auto-détection DÉTERMINISTE (mots-clés / regex, AUCUNE IA) des caractéristiques d'un job depuis son texte.
function detectCharacteristics (job, items) {
  const strip = s => String(s || '').toLowerCase().normalize('NFD').replace(/\p{Diacritic}/gu, '')
  const text = strip([job.subject, job.legacy_detail, job.legacy_dept, job.job_type, job.service_type].join(' '))
  const hit = kw => String(kw || '').split(',').map(x => strip(x).trim()).filter(Boolean).some(k => new RegExp('\\b' + k.replace(/[.*+?^${}()|[\]\\]/g, '\\$&') + '\\b').test(text)) // limites de mots → pas de faux positif « ap » dans « après »
  const bases = items.filter(i => i.cat === 'base')
  let base = bases.find(b => hit(b.keywords))
  if (!base) { const jt = strip(job.job_type); base = bases.find(b => (jt.includes('install') && b.id === 'install_resid') || (jt.includes('repar') && b.id === 'repar_fibre') || (jt.includes('retrait') && b.id === 'retrait')) }
  const picks = base ? [{ id: base.id, qty: 1 }] : []
  for (const a of items.filter(i => i.cat === 'addon')) if (hit(a.keywords)) picks.push({ id: a.id, qty: 1 })
  return picks
}
// Sites PRÉ-CÂBLÉS : une INSTALLATION y prend ~¼ du temps normal (infra déjà en place → branchement rapide).
const FAST_INSTALL_SITES = ['lac des pins', 'camping', 'domaine dauphinais']
function estimateForJob (job, items) {
  items = items || readJobChar().items
  const picks = detectCharacteristics(job, items); const by = {}; for (const i of items) by[i.id] = i
  let minutes = estimateMinutes(picks, items)
  const labels = picks.map(p => (by[p.id] || {}).label).filter(Boolean)
  // Installation à un site pré-câblé → temps /4 (Lac des pins / Camping / Domaine Dauphinais).
  const isInstall = picks.some(p => String(p.id).startsWith('install')) || String(job.required_skill || '').toLowerCase().includes('install')
  if (isInstall && minutes > 0) {
    const loc = [job.address, job.location_label, job.service_location, job.subject, job.municipalite].join(' ').toLowerCase().normalize('NFD').replace(/\p{Diacritic}/gu, '')
    if (FAST_INSTALL_SITES.some(s => loc.includes(s))) { minutes = Math.max(15, Math.round(minutes / 4)); labels.push('site pré-câblé ×¼') }
  }
  return { minutes, picks, labels }
}

// ── #56 Politique de créneaux offerts + holds temporaires ────────────────────
// Persistée dans le même fichier que la politique de reprise (sous-objet `booking`),
// éditée via /roster/policy (lib/roster-assistant.js). Appliquée ici à TOUTE source
// de créneaux (page /book, vue agent, fit) → comportement cohérent partout.
const BOOKING_DEFAULTS = { lead_hours: 24, day_start: 8, day_end: 18, days_offered: [1, 2, 3, 4, 5], horizon_days: 21, max_per_day: 0, hold_minutes: 10, skill_by_type: {} }
function getBookingPolicy () {
  try { const p = JSON.parse(fs.readFileSync(POLICY_FILE, 'utf8')); return { ...BOOKING_DEFAULTS, ...(p.booking || {}) } } catch { return { ...BOOKING_DEFAULTS } }
}
// Compétence REQUISE pour un job → seuls les techs qui l'ont produisent des créneaux (techGaps filtre).
// Un ajout TV/borne WiFi peut mapper à '' (n'importe qui) ; une installation/réparation à 'installateur'.
// Source : champ explicite Dispatch Job.required_skill, sinon table service_type → tag (politique booking).
function skillForJob (job) {
  if (!job) return ''
  if (job.required_skill) return String(job.required_skill).trim()
  const map = getBookingPolicy().skill_by_type || {}
  return String(map[job.service_type] || '').trim()
}
// Repli : déduit une COMPÉTENCE (parmi les skills réels des techs) depuis le département/type legacy.
// Sert à colorer les tickets par la couleur de leur compétence (éditable via le gestionnaire de tags).
function deptToSkill (txt) {
  const d = String(txt || '').toLowerCase().normalize('NFD').replace(/[̀-ͯ]/g, '')
  if (!d) return ''
  if (/teleph/.test(d)) return 'telephone'
  if (/tele|televis/.test(d)) return 'tv'
  if (/fusion|episs/.test(d)) return 'épissure'
  if (/monteur|aerien/.test(d)) return 'monteur'
  if (/netadmin|net admin/.test(d)) return 'netadmin'
  if (/repar|desinstall/.test(d)) return 'réparation'
  if (/install|fibre/.test(d)) return 'installation'
  return ''
}
// Enrichit des jobs avec une adresse LISIBLE (le champ service_location est un code « LOC-… »).
// Batch : 1 seule requête sur Service Location pour tous les codes distincts.
async function attachLocations (jobs) {
  const codes = [...new Set((jobs || []).map(j => j.service_location).filter(Boolean))]
  const m = {}
  if (codes.length) { try { const locs = await erp.list('Service Location', { filters: [['name', 'in', codes]], fields: ['name', 'address_line', 'city', 'location_name'], limit: codes.length + 10 }); for (const l of locs) m[l.name] = l } catch (e) {} }
  // Résolveur municipalité (best-effort : si F injoignable, on n'enrichit pas → OPS retombe sur la ville brute).
  let muni = null; try { muni = require('./municipality'); await muni.load() } catch (e) { muni = null }
  const cityFromAddr = (s) => { const p = String(s || '').split(',').map(x => x.trim()).filter(Boolean); return p.length >= 2 ? p[p.length - 1] : '' }
  for (const j of jobs) {
    const l = m[j.service_location]
    if (l) j.location_label = [l.address_line, l.city].filter(Boolean).join(', ') || l.location_name || ''
    if (muni) {
      const rawCity = (l && l.city) || cityFromAddr(j.location_label || j.address) || ''
      if (rawCity) { try { const r = muni.resolveSync(rawCity); if (r && r.matched) { j.municipalite = r.canonical; j.municipalite_code = r.code; j.mrc = r.mrc || '' } } catch (e) {} }
    }
  }
  // Couverture par CODE POSTAL : jobs sans municipalité résolue (adresse finissant par un code postal, sans ville texte)
  // → ville dominante du code postal (RQA, code_postal indexé) → canonique. = « organiser par localisation si dispo ».
  const residual = jobs.filter(j => !j.municipalite && (j.address || j.location_label))
  if (residual.length) {
    let adb = null; try { adb = require('./address-db') } catch (e) { adb = null }
    if (adb) {
      const POSTAL = /([A-Za-z]\d[A-Za-z])\s?(\d[A-Za-z]\d)/
      for (const j of residual.slice(0, 150)) {
        const mp = String(j.address || j.location_label || '').match(POSTAL); if (!mp) continue
        try {
          const ville = await adb.villeForPostal(mp[1] + mp[2])
          if (ville) { const r = muni ? muni.resolveSync(ville) : null; if (r && r.matched) { j.municipalite = r.canonical; j.municipalite_code = r.code; j.mrc = r.mrc || '' } else { j.municipalite = ville } }
        } catch (e) { /* non bloquant */ }
      }
    }
  }
  return jobs
}
function nowMs () { return new Date().getTime() }
// ── Cache du pool « jobs à assigner » (lecture CHAUDE rejouée à chaque ouverture de Planif) ──
// La requête Dispatch Job + enrichissement est lourde sur cet hôte chargé. Stale-while-revalidate :
// frais (<TTL) = instantané ; périmé = sert le périmé + rafraîchit en arrière-plan ; vide (à froid) = build live.
// Repli SÛR : toute erreur retombe sur le build live (= comportement actuel). Invalidé par les écritures.
const POOL_TTL_MS = 30000
let _poolCache = { ts: 0, jobs: null, building: null }
async function buildUnassigned () {
  const t0 = nowMs()
  const rows = await erp.list('Dispatch Job', { filters: [['status', 'in', ['open', 'On Hold']]], fields: ['name', 'creation', 'subject', 'customer_name', 'service_location', 'service_type', 'job_type', 'assigned_group', 'legacy_dept', 'legacy_detail', 'legacy_ticket_id', 'legacy_activation_url', 'priority', 'duration_h', 'scheduled_date', 'status', 'depends_on', 'parent_job', 'step_order', 'assigned_tech', 'latitude', 'longitude', 'address'], orderBy: 'modified desc', limit: 400 })
  const jobs = (rows || []).filter(j => !j.assigned_tech)
  const chars = readJobChar().items
  const jlv = getJobLevels(); const jfl = getJobFlags()
  for (const j of jobs) { j.required_skill = skillForJob(j) || deptToSkill(j.legacy_dept || j.job_type || j.subject); j.required_level = jlv[j.name] || 0; if (jfl[j.name]) j.priority = jfl[j.name]; const est = estimateForJob(j, chars); j.est_min = est.minutes; j.est_labels = est.labels }
  await attachLocations(jobs)
  log(`pool: construit ${jobs.length} jobs en ${nowMs() - t0}ms`) // mesure réelle (requête + enrichissement)
  return jobs
}
function refreshPoolBg () { if (_poolCache.building) return; _poolCache.building = buildUnassigned().then(j => { _poolCache = { ts: nowMs(), jobs: j, building: null } }).catch(e => { _poolCache.building = null; log('pool refresh err: ' + (e && e.message)) }) }
function invalidatePool () { _poolCache.ts = 0; refreshPoolBg() } // après une écriture pool → forcer le rafraîchissement
// Holds en mémoire : quand un client/agent sélectionne une fenêtre, on la réserve
// quelques minutes pour éviter qu'un autre la prenne pendant la confirmation.
// Transitoire (perdu au redémarrage du hub = acceptable pour un blocage de ~10 min).
const bookingHolds = new Map() // clé 'YYYY-MM-DD|HH:MM' → [expiryMs, …]
function holdCount (key) {
  const now = nowMs(); const arr = (bookingHolds.get(key) || []).filter(t => t > now)
  if (arr.length) bookingHolds.set(key, arr); else bookingHolds.delete(key)
  return arr.length
}
function addHold (key, minutes) {
  const arr = (bookingHolds.get(key) || []).filter(t => t > nowMs())
  arr.push(nowMs() + Math.max(1, minutes || 10) * 60000); bookingHolds.set(key, arr)
  return arr.length
}
function releaseHold (key) { bookingHolds.delete(key) }

async function loadBookingData (start, days) {
  const dates = rangeDates(start, days)
  const asgs = await fetchAssignments(start, days)
  const techs = await fetchTechnicians()
  const templates = await fetchTemplates()
  const unavail = await buildUnavailability(techs, dates) // En pause + absence_from/until + Tech Availability approuvées (par jour)
  const techById = Object.fromEntries(techs.map(t => [t.id, t]))
  const tplByName = Object.fromEntries(templates.map(t => [t.name, t]))
  const jobs = await erp.list('Dispatch Job', {
    filters: [['scheduled_date', 'in', dates], ['status', 'in', ['open', 'assigned']]],
    fields: ['assigned_tech', 'scheduled_date', 'start_time', 'duration_h'], limit: 2000,
  })
  const booked = {}
  for (const j of jobs) {
    if (!j.start_time) continue
    const k = j.assigned_tech + '|' + j.scheduled_date
    ;(booked[k] || (booked[k] = [])).push({ s: timeToH(j.start_time), e: timeToH(j.start_time) + (Number(j.duration_h) || 1) })
  }
  return { asgs, techById, tplByName, booked, unavail }
}

// Trous libres d'un tech (dans son shift, moins jobs pointés), filtrés compétence/zone.
function techGaps (a, d, skill, zone) {
  const t = d.techById[a.tech]; if (!t || t.status === PAUSE_STATUS) return null
  if (d.unavail && d.unavail[a.tech] && d.unavail[a.tech].has(a.date)) return null // absence/congé approuvé ce jour-là → pas de créneaux
  if (skill && !(t.skills || []).includes(skill)) return null
  if (zone && a.zone && a.zone !== zone) return null
  const tpl = d.tplByName[a.shift]; if (!tpl) return null
  if (tpl.on_call) return null // garde (sur appel) = capacité d'urgence, JAMAIS offerte au booking client
  const sh = timeToH(tpl.start_time) || 8; const eh = timeToH(tpl.end_time) || (sh + (Number(tpl.hours) || 8))
  const day = (d.booked[a.tech + '|' + a.date] || []).slice().sort((x, y) => x.s - y.s)
  let cursor = sh; const gaps = []
  for (const b of day) { if (b.s > cursor) gaps.push([cursor, b.s]); cursor = Math.max(cursor, b.e) }
  if (cursor < eh) gaps.push([cursor, eh])
  return { tech: t, gaps }
}

// Premier créneau libre (en heures, ex 8.5) d'un tech un jour donné pour une durée `dur`.
// Aucun trou assez large → empile après le dernier bloc (surbook visible) ; pas de shift régulier → null.
// Partagé par /roster/assign-job (drag-drop) et /roster/backfill-start-times.
function firstFitStart (d, techId, date, dur) {
  const mine = d.asgs.filter(a => a.tech === techId && a.date === date && !(d.tplByName[a.shift] && d.tplByName[a.shift].on_call))
  if (!mine.length) return null
  let best = null
  for (const a of mine) { const g = techGaps(a, d, null, null); if (!g) continue; for (const [gs, ge] of g.gaps) if (ge - gs >= dur - 1e-6) { if (best == null || gs < best) best = gs; break } }
  if (best == null) { const tpl = d.tplByName[mine[0].shift]; const sh = timeToH(tpl && tpl.start_time) || 8; const day = (d.booked[techId + '|' + date] || []).slice().sort((x, y) => x.e - y.e); best = day.length ? day[day.length - 1].e : sh }
  return best
}

async function bookingSlots ({ skill, zone, duration = 1, start, days = 7, limit = 24, aggregate = false, ignorePolicy = false } = {}) {
  const dur = Number(duration) || 1
  const pol = getBookingPolicy()
  const d = await loadBookingData(start, days)
  const leadCut = ignorePolicy ? 0 : nowMs() + (pol.lead_hours || 0) * 3600000
  const dayStart = ignorePolicy ? 0 : (Number.isFinite(pol.day_start) ? pol.day_start : 0)
  const dayEnd = ignorePolicy ? 24 : (Number.isFinite(pol.day_end) ? pol.day_end : 24)
  const offered = !ignorePolicy && Array.isArray(pol.days_offered) && pol.days_offered.length ? pol.days_offered : null
  const out = []
  for (const a of d.asgs) {
    if (a.status === 'Annulé') continue
    if (offered && !offered.includes(parseISO(a.date).getUTCDay())) continue // jour non offert par la politique
    const g = techGaps(a, d, skill, zone); if (!g) continue
    for (const [gs, ge] of g.gaps) {
      let s = Math.max(gs, dayStart); const end = Math.min(ge, dayEnd) // borné à la plage horaire offerte
      while (s + dur <= end) {
        const slotMs = parseISO(a.date).getTime() + s * 3600000 // approx UTC — suffisant pour un délai exprimé en heures
        if (slotMs >= leadCut) out.push({ date: a.date, start: hToTime(s), end: hToTime(s + dur), start_h: s, tech: a.tech, tech_name: g.tech.name, zone: a.zone || '', shift: a.shift })
        s += dur
      }
    }
  }
  if (aggregate) {  // client : 1 fenêtre par (date,heure) + nb de techs dispo, moins les holds actifs
    const byWin = {}
    for (const s of out) { const k = s.date + '|' + s.start; (byWin[k] || (byWin[k] = { date: s.date, start: s.start, end: s.end, start_h: s.start_h, available: 0 })).available++ }
    let arr = Object.values(byWin).map(w => ({ ...w, available: w.available - holdCount(w.date + '|' + w.start) })).filter(w => w.available > 0)
    arr.sort((x, y) => x.date.localeCompare(y.date) || x.start_h - y.start_h)
    if (!ignorePolicy && pol.max_per_day > 0) { const c = {}; arr = arr.filter(w => { c[w.date] = (c[w.date] || 0) + 1; return c[w.date] <= pol.max_per_day }) } // plafond/jour
    return arr.slice(0, limit)
  }
  out.sort((x, y) => x.date.localeCompare(y.date) || x.start_h - y.start_h)
  return out.slice(0, limit)
}

// Fit : le client fournit 3 dispos classées → on place dans le 1er choix tenable,
// sinon 2e, sinon 3e. Si aucune ne tient → on PROPOSE nos créneaux (fallback).
async function fitBooking ({ skill, zone, duration = 1, prefs = [] } = {}) {
  const dur = Number(duration) || 1
  const dates = [...new Set((prefs || []).map(p => p.date).filter(Boolean))].sort()
  if (!dates.length) return { chosen: null, proposed: [] }
  const span = Math.max(1, Math.round((parseISO(dates[dates.length - 1]) - parseISO(dates[0])) / 86400000) + 1)
  const d = await loadBookingData(dates[0], span)
  const byDate = {}; for (const a of d.asgs) (byDate[a.date] || (byDate[a.date] = [])).push(a)
  for (let i = 0; i < prefs.length; i++) {
    const p = prefs[i]; const ps = timeToH(p.start); const pe = ps + dur
    for (const a of (byDate[p.date] || [])) {
      if (a.status === 'Annulé') continue
      const g = techGaps(a, d, skill, zone); if (!g) continue
      if (g.gaps.some(([gs, ge]) => gs <= ps && ge >= pe)) {
        return { chosen: { rank: i + 1, date: p.date, start: p.start, end: hToTime(pe), tech: a.tech, tech_name: g.tech.name, zone: a.zone || '', shift: a.shift }, proposed: [] }
      }
    }
  }
  const proposed = await bookingSlots({ skill, zone, duration: dur, start: dates[0], days: 14, limit: 6, aggregate: true })
  return { chosen: null, proposed }
}

// ── Portail public de prise de RDV (staging — PAS sur Lovable tant que non validé) ──
function todayET () { return new Date().toLocaleDateString('en-CA', { timeZone: 'America/Toronto' }) }
async function jobByToken (token) {
  if (!token) return null
  const rows = await erp.list('Dispatch Job', { filters: [['booking_token', '=', token]], fields: ['name', 'service_location', 'service_type', 'duration_h', 'scheduled_date', 'start_time', 'booking_status'], limit: 1 })
  return rows[0] || null
}
async function confirmWindow (jobName, date, start, duration, skill) {
  // À la confirmation on veut juste vérifier que le tech est ENCORE physiquement libre
  // (pas re-filtrer par la politique d'offre) → ignorePolicy. MAIS on garde le filtre COMPÉTENCE
  // (skill) sinon on pourrait assigner un tech non qualifié au créneau choisi.
  const day = await bookingSlots({ skill, duration, start: date, days: 1, limit: 300, ignorePolicy: true })
  const slot = day.find(s => s.start === start)
  if (!slot) return { ok: false, message: 'Ce créneau vient d\'être pris — choisissez-en un autre.' }
  const st = start.length === 5 ? start + ':00' : start
  const r = await retryWrite(() => erp.update('Dispatch Job', jobName, { scheduled_date: date, start_time: st, assigned_tech: slot.tech, status: 'assigned', booking_status: 'Confirmé' }))
  if (r.ok) releaseHold(date + '|' + start)
  return r.ok ? { ok: true, confirmed: true, date, start, tech: slot.tech_name } : { ok: false, message: r.error || 'échec' }
}

const BOOK_HTML = `<!doctype html><html lang=fr><head><meta charset=utf-8><meta name=viewport content="width=device-width,initial-scale=1"><title>Prendre rendez-vous — Gigafibre</title>
<style>body{font-family:-apple-system,Segoe UI,Roboto,sans-serif;margin:0;background:#f4f6f8;color:#1a1a1a}.wrap{max-width:560px;margin:0 auto;padding:16px}.card{background:#fff;border-radius:12px;box-shadow:0 1px 4px rgba(0,0,0,.08);padding:20px;margin-bottom:12px}h1{font-size:20px;margin:0 0 4px}.sub{color:#666;font-size:13px;margin-bottom:8px}.brand{color:#1565c0;font-weight:800}.day{font-weight:700;margin:14px 0 6px;font-size:13px;color:#444}.slots{display:grid;grid-template-columns:repeat(auto-fill,minmax(96px,1fr));gap:8px}.slot{border:1px solid #d0d7de;border-radius:8px;padding:10px 6px;text-align:center;cursor:pointer;font-size:14px;position:relative}.slot:hover{border-color:#1565c0}.slot.sel{background:#e3f2fd;border-color:#1565c0;font-weight:700}.rank{position:absolute;top:-8px;right:-8px;background:#1565c0;color:#fff;width:20px;height:20px;border-radius:50%;font-size:12px;line-height:20px}.btn{background:#1565c0;color:#fff;border:0;border-radius:8px;padding:13px 18px;font-size:15px;font-weight:600;cursor:pointer;width:100%;margin-top:12px}.btn:disabled{background:#b0bec5}.hint{font-size:12px;color:#666;margin:8px 0}.ok{background:#e8f5e9;color:#1b5e20;padding:16px;border-radius:8px;text-align:center}.err{background:#ffebee;color:#b71c1c;padding:12px;border-radius:8px}.week{background:#1565c0;color:#fff;font-weight:700;font-size:13px;padding:8px 12px;border-radius:8px;margin:18px 0 4px}.ampm{font-size:11px;color:#888;text-transform:uppercase;letter-spacing:.5px;margin:10px 0 4px;font-weight:700}.empty{color:#999;font-size:12px;font-style:italic}</style></head>
<body><div class=wrap><div class=card><h1>Prendre <span class=brand>rendez-vous</span></h1><div class=sub id=jobinfo>Chargement…</div><div id=content></div></div><div class=sub style=text-align:center>Gigafibre · propulsé par Targo</div></div>
<script>
const token=new URLSearchParams(location.search).get('token')||'';
const FR=['dimanche','lundi','mardi','mercredi','jeudi','vendredi','samedi'];
const MO=['janv.','févr.','mars','avr.','mai','juin','juil.','août','sept.','oct.','nov.','déc.'];
let picks=[];
function d2(iso){const a=iso.split('-').map(Number);return new Date(Date.UTC(a[0],a[1]-1,a[2]))}
function dayLabel(iso){const dt=d2(iso);return FR[dt.getUTCDay()]+' '+dt.getUTCDate()+' '+MO[dt.getUTCMonth()]}
function wkMon(iso){const dt=d2(iso);const off=(dt.getUTCDay()+6)%7;dt.setUTCDate(dt.getUTCDate()-off);return dt.toISOString().slice(0,10)}
function wkLabel(m){const a=d2(m);const b=new Date(a);b.setUTCDate(b.getUTCDate()+6);return 'Semaine du '+a.getUTCDate()+' '+MO[a.getUTCMonth()]+' – '+b.getUTCDate()+' '+MO[b.getUTCMonth()]}
async function load(){const r=await fetch('/book/api/options?token='+encodeURIComponent(token)).then(x=>x.json()).catch(()=>({ok:false}));const info=document.getElementById('jobinfo'),c=document.getElementById('content');
if(!r.ok){info.textContent='';c.innerHTML='<div class=err>Lien invalide ou expiré. Contactez-nous.</div>';return}
if(r.job.scheduled){info.innerHTML='Votre rendez-vous est déjà confirmé : <b>'+dayLabel(r.job.scheduled)+'</b>.';c.innerHTML='';return}
info.innerHTML='Choisissez vos disponibilités <b>en ordre de préférence</b> (jusqu’à 3). On confirme le 1er créneau possible.';
if(!r.windows.length){c.innerHTML='<div class=err>Aucune disponibilité pour le moment — nous vous contacterons.</div>';return}
const weeks={};r.windows.forEach(w=>{const mk=wkMon(w.date);(weeks[mk]=weeks[mk]||{});(weeks[mk][w.date]=weeks[mk][w.date]||[]).push(w)});let h='';
Object.keys(weeks).sort().forEach(mk=>{h+='<div class=week>'+wkLabel(mk)+'</div>';Object.keys(weeks[mk]).sort().forEach(d=>{const ws=weeks[mk][d].sort((a,b)=>a.start_h-b.start_h);const am=ws.filter(w=>w.start_h<12),pm=ws.filter(w=>w.start_h>=12);h+='<div class=day>'+dayLabel(d)+'</div>';const sect=(lab,arr)=>arr.length?('<div class=ampm>'+lab+'</div><div class=slots>'+arr.map(w=>'<div class=slot data-d="'+w.date+'" data-s="'+w.start+'">'+w.start+'</div>').join('')+'</div>'):'';h+=sect('Matin',am)+sect('Après-midi',pm)})});
h+='<div class=hint id=hint>Touchez 1 à 3 créneaux.</div><button class=btn id=go disabled>Confirmer mes disponibilités</button>';c.innerHTML=h;
c.querySelectorAll('.slot').forEach(el=>el.onclick=()=>toggle(el));document.getElementById('go').onclick=submit}
function toggle(el){const k=el.dataset.d+'|'+el.dataset.s,i=picks.indexOf(k);if(i>=0)picks.splice(i,1);else if(picks.length<3)picks.push(k);render()}
function render(){document.querySelectorAll('.slot').forEach(el=>{const k=el.dataset.d+'|'+el.dataset.s,i=picks.indexOf(k);el.classList.toggle('sel',i>=0);let b=el.querySelector('.rank');if(i>=0){if(!b){b=document.createElement('div');b.className='rank';el.appendChild(b)}b.textContent=i+1}else if(b)b.remove()});document.getElementById('hint').textContent=picks.length?picks.length+' choix sélectionné(s) — le 1er sera priorisé.':'Touchez 1 à 3 créneaux.';document.getElementById('go').disabled=!picks.length}
async function submit(){const go=document.getElementById('go');go.disabled=true;go.textContent='Envoi…';const prefs=picks.map(k=>({date:k.split('|')[0],start:k.split('|')[1]}));const r=await fetch('/book/api/submit?token='+encodeURIComponent(token),{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify({mode:'rank',prefs})}).then(x=>x.json()).catch(()=>({ok:false}));const c=document.getElementById('content');
if(r.ok&&r.confirmed)c.innerHTML='<div class=ok>✅ Rendez-vous confirmé : <b>'+dayLabel(r.date)+' à '+r.start+'</b>.<br>Merci !</div>';
else if(r.ok)c.innerHTML='<div class=ok>Merci ! '+(r.message||'Nous vous confirmerons sous peu.')+'</div>';
else c.innerHTML='<div class=err>'+(r.message||r.error||'Une erreur est survenue.')+'</div>'}
load();
</script></body></html>`

async function handlePublicBooking (req, res, method, path, url) {
  if (path === '/book' && method === 'GET') { res.writeHead(200, { 'Content-Type': 'text/html; charset=utf-8' }); return res.end(BOOK_HTML) }
  const token = url.searchParams.get('token') || ''
  if (path === '/book/api/options' && method === 'GET') {
    const job = await jobByToken(token); if (!job) return json(res, 404, { ok: false, error: 'lien invalide' })
    const dur = Number(job.duration_h) || 1; const skill = skillForJob(job) // seuls les techs qualifiés
    const windows = await bookingSlots({ skill, duration: dur, start: todayET(), days: getBookingPolicy().horizon_days || 21, aggregate: true, limit: 60 })
    return json(res, 200, { ok: true, job: { location: job.service_location || '', service_type: job.service_type || '', required_skill: skill, duration: dur, scheduled: job.scheduled_date || '' }, windows })
  }
  if (path === '/book/api/submit' && method === 'POST') {
    const job = await jobByToken(token); if (!job) return json(res, 404, { ok: false, error: 'lien invalide' })
    const b = await parseBody(req); const dur = Number(job.duration_h) || 1; const skill = skillForJob(job)
    if (b.mode === 'rank' && Array.isArray(b.prefs) && b.prefs.length) {
      const fit = await fitBooking({ skill, duration: dur, prefs: b.prefs })
      if (fit.chosen) { const r = await confirmWindow(job.name, fit.chosen.date, fit.chosen.start, dur, skill); if (r.ok) return json(res, 200, { ...r, rank: fit.chosen.rank }) }
      await retryWrite(() => erp.update('Dispatch Job', job.name, { booking_prefs: JSON.stringify(b.prefs), booking_status: 'Proposé' }))
      return json(res, 200, { ok: true, confirmed: false, message: 'Vos disponibilités sont enregistrées — nous vous confirmerons sous peu.' })
    }
    return json(res, 400, { ok: false, error: 'requête invalide' })
  }
  return json(res, 404, { error: 'not found' })
}

// ── APP TECHNICIEN : capture passive du temps via « checkpoints » (GPS geofence / scan / etc.) ──────────────
// Token signé par job (HMAC, stateless, sans login ni champ DB). Voir docs/field-tech-app.md.
const FIELD_SECRET = cfg.INTERNAL_TOKEN || cfg.ERP_SERVICE_TOKEN || 'targo-field-v1'
const ON_SITE_M = Number(process.env.FIELD_ONSITE_RADIUS_M) || 250 // rayon « sur place » autour de l'adresse
function fieldSign (name) { const h = crypto.createHmac('sha256', FIELD_SECRET).update(String(name)).digest('hex').slice(0, 12); return Buffer.from(String(name)).toString('base64url') + '.' + h }
function fieldVerify (token) { try { const [b, h] = String(token || '').split('.'); if (!b || !h) return null; const name = Buffer.from(b, 'base64url').toString('utf8'); const exp = crypto.createHmac('sha256', FIELD_SECRET).update(name).digest('hex').slice(0, 12); return crypto.timingSafeEqual(Buffer.from(h), Buffer.from(exp)) ? name : null } catch (e) { return null } }
function haversineM (a1, o1, a2, o2) { const R = 6371000, t = Math.PI / 180; const dA = (a2 - a1) * t, dO = (o2 - o1) * t; const x = Math.sin(dA / 2) ** 2 + Math.cos(a1 * t) * Math.cos(a2 * t) * Math.sin(dO / 2) ** 2; return Math.round(R * 2 * Math.atan2(Math.sqrt(x), Math.sqrt(1 - x))) }
// Token PAR TECH (préfixe 'T:') → l'app charge les jobs du jour du tech. Token Mapbox public (pk) pour la carte de l'app.
const FIELD_MAPBOX = 'pk.eyJ1IjoidGFyZ29pbnRlcm5ldCIsImEiOiJjbW13Z3lwMXAwdGt1MnVvamsxNWkybzFkIn0.rdYB17XUdfn96czdnnJ6eg'
function techFieldSign (name) { return fieldSign('T:' + name) }
function techFieldVerify (t) { const v = fieldVerify(t); return (v && v.startsWith('T:')) ? v.slice(2) : null }
function serveFieldApp (res) {
  try { let html = require('fs').readFileSync('/app/public/field-app.html', 'utf8'); html = html.split('__MAPBOX_TOKEN__').join(FIELD_MAPBOX).split('__HUB__').join(cfg.PUBLIC_BASE || 'https://msg.gigafibre.ca'); res.writeHead(200, { 'Content-Type': 'text/html; charset=utf-8' }); return res.end(html) } catch (e) { res.writeHead(500); return res.end('app terrain indisponible') }
}
function savePhoto (jobName, dataUrl) {
  const m = /^data:image\/(\w+);base64,(.+)$/.exec(String(dataUrl || '')); if (!m) return null
  const buf = Buffer.from(m[2], 'base64'); if (!buf.length || buf.length > 6 * 1024 * 1024) return null
  const fs = require('fs'); const dir = '/app/uploads/field'; try { fs.mkdirSync(dir, { recursive: true }) } catch (e) {}
  const fn = 'f_' + String(jobName).replace(/[^a-zA-Z0-9_-]/g, '') + '_' + Date.now() + '.' + (m[1] === 'png' ? 'png' : 'jpg')
  try { fs.writeFileSync(dir + '/' + fn, buf); return fn } catch (e) { return null }
}
async function handleFieldTech (req, res, method, path, url) {
  const token = url.searchParams.get('t') || url.searchParams.get('token') || ''
  if (path === '/field/job' && method === 'GET') {
    const name = fieldVerify(token); if (!name) return json(res, 403, { ok: false, error: 'lien invalide' })
    const r = await erp.list('Dispatch Job', { filters: [['name', '=', name]], fields: ['name', 'subject', 'customer_name', 'address', 'latitude', 'longitude', 'scheduled_date', 'actual_start', 'actual_end', 'status'], limit: 1 })
    const j = r && r[0]; if (!j) return json(res, 404, { ok: false, error: 'job introuvable' })
    return json(res, 200, { ok: true, job: { ...j, actual_minutes: minutesBetween(j.actual_start, j.actual_end) } })
  }
  if (path === '/field/checkpoint' && method === 'POST') {
    const b = await parseBody(req); const name = fieldVerify(b.token || token); if (!name) return json(res, 403, { ok: false, error: 'lien invalide' })
    const r = await erp.list('Dispatch Job', { filters: [['name', '=', name]], fields: ['name', 'latitude', 'longitude', 'actual_start', 'actual_end', 'completion_notes', 'status'], limit: 1 })
    const j = r && r[0]; if (!j) return json(res, 404, { ok: false, error: 'job introuvable' })
    const ts = nowFrappe()
    const lat = Number(b.lat), lon = Number(b.lon); const hasGps = isFinite(lat) && isFinite(lon)
    let dist = null
    if (hasGps && j.latitude != null && j.longitude != null && (Math.abs(+j.latitude) > 0.01)) dist = haversineM(+j.latitude, +j.longitude, lat, lon)
    const onSite = (b.type === 'geo_exit') || dist == null || dist <= ON_SITE_M // hors-zone ignoré pour la durée, gardé en note
    const patch = {}
    if (onSite) { if (!j.actual_start) patch.actual_start = ts; patch.actual_end = ts; if (j.status === 'open' || j.status === 'assigned') patch.status = 'In Progress' }
    const note = `• ${ts} ${b.type || 'checkpoint'}${b.ref ? ' ' + String(b.ref).slice(0, 40) : ''}${hasGps ? ` · GPS ${lat.toFixed(5)},${lon.toFixed(5)}${b.acc ? ' ±' + Math.round(b.acc) + 'm' : ''}${dist != null ? ` · à ${dist}m` : ''}` : ''}${onSite ? '' : ' · HORS ZONE (ignoré durée)'}`
    patch.completion_notes = ((j.completion_notes || '') + '\n' + note).slice(-4000)
    const up = await retryWrite(() => erp.update('Dispatch Job', name, patch))
    const startTs = j.actual_start || (onSite ? ts : null)
    return json(res, up.ok ? 200 : 500, { ok: !!up.ok, on_site: onSite, distance_m: dist, minutes: minutesBetween(startTs, onSite ? ts : j.actual_end), actual_start: patch.actual_start || j.actual_start || '', actual_end: patch.actual_end || j.actual_end || '' })
  }
  if ((path === '/field' || path === '/field/app') && method === 'GET') return serveFieldApp(res) // PWA technicien (carte + tickets + photos + scan)
  if (path === '/field/tech' && method === 'GET') { // jobs du jour (+ demain) du tech, via token PAR TECH
    const tech = techFieldVerify(token); if (!tech) return json(res, 403, { ok: false, error: 'lien invalide' })
    const dates = rangeDates(todayET(), 2) // aujourd'hui + demain
    const rows = await erp.list('Dispatch Job', { filters: [['assigned_tech', '=', tech], ['scheduled_date', 'in', dates]], fields: ['name', 'subject', 'customer_name', 'address', 'latitude', 'longitude', 'scheduled_date', 'start_time', 'status', 'actual_start', 'actual_end', 'legacy_ticket_id', 'legacy_activation_url', 'notes', 'required_skill', 'duration_h'], orderBy: 'scheduled_date asc, start_time asc', limit: 200 })
    const staffId = (String(tech).match(/(\d+)$/) || [])[1] || ''
    const jobs = (rows || []).map(j => ({ name: j.name, subject: j.subject, customer: j.customer_name || '', address: j.address || '', lat: j.latitude, lon: j.longitude, date: j.scheduled_date, start: j.start_time ? String(j.start_time).slice(0, 5) : '', status: j.status, started: !!j.actual_start, ended: !!j.actual_end, minutes: minutesBetween(j.actual_start, j.actual_end), token: fieldSign(j.name), reply: j.legacy_ticket_id ? `https://store.targo.ca/targo/reply_ticket.php?ticket=${j.legacy_ticket_id}&staff=${staffId}` : '', activation: j.legacy_activation_url || '', notes: j.notes || '', skill: j.required_skill || '', dur: j.duration_h || null }))
    return json(res, 200, { ok: true, tech, jobs })
  }
  if (path === '/field/photo' && method === 'POST') { // photo (base64) → /app/uploads/field + note sur le job
    const b = await parseBody(req); const name = fieldVerify(b.token || token); if (!name) return json(res, 403, { ok: false, error: 'lien invalide' })
    const fn = savePhoto(name, b.image); if (!fn) return json(res, 400, { ok: false, error: 'image invalide' })
    const r = await erp.list('Dispatch Job', { filters: [['name', '=', name]], fields: ['completion_notes'], limit: 1 }); const j = r && r[0]
    const note = `\n• ${nowFrappe()} 📷 photo ${fn}${b.note ? ' — ' + String(b.note).slice(0, 60) : ''}`
    await retryWrite(() => erp.update('Dispatch Job', name, { completion_notes: (((j && j.completion_notes) || '') + note).slice(-4000) }))
    return json(res, 200, { ok: true, file: fn })
  }
  if (path === '/field/device' && method === 'POST') { // appareil scané (série/MAC) → checkpoint présence + note (GenieACS à brancher)
    const b = await parseBody(req); const name = fieldVerify(b.token || token); if (!name) return json(res, 403, { ok: false, error: 'lien invalide' })
    const serial = String(b.serial || '').slice(0, 60), mac = String(b.mac || '').slice(0, 40), kind = String(b.kind || 'appareil').slice(0, 30)
    if (!serial && !mac) return json(res, 400, { ok: false, error: 'série ou MAC requis' })
    const r = await erp.list('Dispatch Job', { filters: [['name', '=', name]], fields: ['completion_notes', 'actual_start', 'status'], limit: 1 }); const j = r && r[0]
    const ts = nowFrappe(); const patch = { completion_notes: (((j && j.completion_notes) || '') + `\n• ${ts} 📦 ${kind}${serial ? ' SN ' + serial : ''}${mac ? ' MAC ' + mac : ''}`).slice(-4000), actual_end: ts }
    if (j && !j.actual_start) patch.actual_start = ts // un scan sur place = preuve de présence (démarre le chrono)
    if (j && (j.status === 'open' || j.status === 'assigned')) patch.status = 'In Progress'
    await retryWrite(() => erp.update('Dispatch Job', name, patch))
    return json(res, 200, { ok: true, serial, mac, kind, genieacs: 'à brancher par MAC' })
  }
  if (path === '/field/ts' && method === 'POST') { // webhook geofence natif Transistorsoft (autoSync) → checkpoints. Auto-authentifié : identifier = token signé du job.
    const b = await parseBody(req)
    const locs = Array.isArray(b.location) ? b.location : (b.location ? [b.location] : (Array.isArray(b) ? b : []))
    let applied = 0
    for (const L of locs) {
      const g = L && L.geofence; if (!g || !g.identifier) continue
      const name = fieldVerify(g.identifier); if (!name) continue
      const type = String(g.action).toUpperCase() === 'EXIT' ? 'geo_exit' : 'geo_enter'
      const c = (L.coords) || {}; const ts = nowFrappe()
      const r = await erp.list('Dispatch Job', { filters: [['name', '=', name]], fields: ['name', 'actual_start', 'completion_notes', 'status'], limit: 1 }); const j = r && r[0]; if (!j) continue
      const patch = { actual_end: ts, completion_notes: (((j.completion_notes) || '') + `\n• ${ts} ${type} (geofence natif)${c.latitude ? ` · GPS ${(+c.latitude).toFixed(5)},${(+c.longitude).toFixed(5)}` : ''}`).slice(-4000) }
      if (type === 'geo_enter' && !j.actual_start) patch.actual_start = ts
      if (j.status === 'open' || j.status === 'assigned') patch.status = 'In Progress'
      await retryWrite(() => erp.update('Dispatch Job', name, patch)).catch(() => {}); applied++
    }
    return json(res, 200, { ok: true, applied })
  }
  if (path === '/field/vision' && method === 'POST') { // photo d'étiquette → proxy IA Gemini → {brand,model,serial_number,mac_address}
    const b = await parseBody(req); const name = fieldVerify(b.token || token); if (!name) return json(res, 403, { ok: false, error: 'lien invalide' })
    if (!b.image) return json(res, 400, { ok: false, error: 'image requise' })
    try { const eq = await require('./vision').extractEquipment(String(b.image).replace(/^data:image\/[^;]+;base64,/, '')); return json(res, 200, { ok: true, ...eq }) }
    catch (e) { return json(res, 500, { ok: false, error: String(e.message || e) }) }
  }
  return json(res, 404, { ok: false, error: 'not found' })
}
// Génère le lien terrain d'un job (pour SMS/app/QR) — exposé via une route interne.
function fieldLink (name) { return (cfg.PUBLIC_BASE || 'https://msg.gigafibre.ca') + '/field?t=' + fieldSign(name) }
function techFieldLink (techName) { return (cfg.PUBLIC_BASE || 'https://msg.gigafibre.ca') + '/field?t=' + techFieldSign(techName) }

// Stats par jour : effectif (techs distincts), heures TRAVAILLÉES, tickets dispatch.
// La garde (on_call) = mise en disponibilité → exclue des heures travaillées.
async function statsByDay (start, days) {
  const dates = rangeDates(start, days)
  const asgs = await fetchAssignments(start, days)
  const templates = await fetchTemplates()
  const onCall = new Set(templates.filter(t => t.on_call).map(t => t.name))
  const jobs = await erp.list('Dispatch Job', {
    filters: [['scheduled_date', 'in', dates]],
    fields: ['name', 'scheduled_date'], limit: 3000,
  })
  const by = {}
  for (const d of dates) by[d] = { date: d, staff: new Set(), hours: 0, oncall: new Set(), tickets: 0 }
  for (const a of asgs) {
    if (a.status === 'Annulé') continue; const x = by[a.date]; if (!x) continue
    if (onCall.has(a.shift)) { x.oncall.add(a.tech) } else { x.staff.add(a.tech); x.hours += Number(a.hours) || 0 }
  }
  for (const j of jobs) { const x = by[j.scheduled_date]; if (x) x.tickets++ }
  return dates.map(d => ({ date: d, staff: by[d].staff.size, hours: by[d].hours, on_call: by[d].oncall.size, tickets: by[d].tickets }))
}

// Occupation par (technicien, jour) : Σ heures + blocs horaires des Dispatch Jobs planifiés.
// → la grille Planification affiche la fenêtre du shift ET les blocs pris (donc les trous offrables).
async function occupancyByTechDay (start, days) {
  const dates = rangeDates(start, days)
  const jobs = await erp.list('Dispatch Job', {
    // Inclut Completed/Cancelled : la grille montre AUSSI le travail fait/annulé de la journée (trace du tech),
    // pas seulement le planifiable. (Filtrés par assigned_tech ci-dessous : les annulés « non assigné » n'apparaissent pas.)
    filters: [['scheduled_date', 'in', dates], ['status', 'in', ['open', 'assigned', 'in_progress', 'In Progress', 'Completed', 'Cancelled']]],
    fields: ['name', 'subject', 'customer_name', 'service_type', 'job_type', 'legacy_dept', 'assigned_tech', 'scheduled_date', 'start_time', 'duration_h', 'priority', 'route_order', 'latitude', 'longitude', 'booking_status', 'legacy_detail', 'legacy_ticket_id', 'address', 'service_location', 'actual_start', 'actual_end', 'status'], limit: 5000,
  })
  const PRIO = { urgent: 0, high: 1, medium: 2, low: 3 } // ordre d'affichage
  const occChars = readJobChar().items // table additive (1 lecture) → durée EFFECTIVE estimée par job
  const m = {}
  for (const j of jobs) {
    if (!j.assigned_tech || !j.scheduled_date) continue
    const k = j.assigned_tech + '|' + j.scheduled_date
    const o = m[k] || (m[k] = { h: 0, blocks: [], jobs: [] })
    const estMin = estimateForJob(j, occChars).minutes
    const dur = estMin ? estMin / 60 : (Number(j.duration_h) || 0) // estimation additive (sinon duration_h)
    const done = j.status === 'Completed'
    const cancelled = j.status === 'Cancelled'
    if (!cancelled) o.h += dur // les annulés n'ont pas consommé de temps → hors capacité
    const skill = skillForJob(j) || deptToSkill(j.legacy_dept || j.job_type || j.subject) // compétence → couleur du bloc (palette skills)
    const s = j.start_time ? timeToH(j.start_time) : null
    if (s != null && !cancelled) o.blocks.push({ s, e: s + dur, skill, job: j.name, done }) // 1 bloc = 1 job, coloré par sa compétence
    const actualMin = (j.actual_start && j.actual_end) ? Math.max(0, Math.round((Date.parse(j.actual_end.replace(' ', 'T')) - Date.parse(j.actual_start.replace(' ', 'T'))) / 60000)) : null
    o.jobs.push({ name: j.name, subject: j.subject || j.service_type || j.name, customer: j.customer_name || '', address: j.address || '', service_location: j.service_location || '', start: j.start_time ? String(j.start_time).slice(0, 5) : '', start_h: s, dur, est_min: estMin, priority: j.priority || 'low', skill, route_order: Number(j.route_order) || 0, lat: j.latitude != null ? Number(j.latitude) : null, lon: j.longitude != null ? Number(j.longitude) : null, booking_status: j.booking_status || '', status: j.status || '', done, cancelled, legacy_id: j.legacy_ticket_id || '', legacy_dept: j.legacy_dept || '', detail: (j.legacy_detail || '').slice(0, 400), actual_start: j.actual_start || '', actual_end: j.actual_end || '', actual_min: actualMin })
  }
  // ── ÉQUIPE : reporte la charge des assistants ÉPINGLÉS sur LEUR propre lane (mirror) ──
  // 1 requête enfant UNIQUE (pas de N+1). Le lead reste compté via assigned_tech ci-dessus ;
  // l'assistant épinglé voit un bloc miroir à l'heure du lead, dimensionné à SA durée → anti double-booking.
  const jobNames = jobs.map(j => j.name)
  if (jobNames.length) {
    const jByName = {}; for (const j of jobs) jByName[j.name] = j
    let assists = []
    try {
      assists = await erp.list('Dispatch Job Assistant', {
        filters: [['parent', 'in', jobNames], ['pinned', '=', 1]],
        fields: ['parent', 'tech_id', 'tech_name', 'duration_h'], limit: 5000,
      })
    } catch (e) { assists = [] } // table absente / aucun assistant → silencieux (0 impact)
    for (const a of assists) {
      const j = jByName[a.parent]; if (!j || !a.tech_id || !j.scheduled_date) continue
      const k = a.tech_id + '|' + j.scheduled_date
      const o = m[k] || (m[k] = { h: 0, blocks: [], jobs: [] })
      const skill = skillForJob(j) || deptToSkill(j.legacy_dept || j.job_type || j.subject)
      const jDur = (estimateForJob(j, occChars).minutes / 60) || Number(j.duration_h) || 0
      const dur = Number(a.duration_h) || jDur || 1 // durée propre de l'assistant (≤ job)
      o.h += dur
      const s = j.start_time ? timeToH(j.start_time) : null
      if (s != null) o.blocks.push({ s, e: s + dur, skill, job: j.name, assist: true })
      o.jobs.push({ name: j.name, subject: '👥 ' + (j.subject || j.service_type || j.name), customer: j.customer_name || '', address: j.address || '', service_location: j.service_location || '', start: j.start_time ? String(j.start_time).slice(0, 5) : '', start_h: s, dur, est_min: Math.round(dur * 60), priority: j.priority || 'low', skill, route_order: Number(j.route_order) || 0, lat: j.latitude != null ? Number(j.latitude) : null, lon: j.longitude != null ? Number(j.longitude) : null, booking_status: j.booking_status || '', legacy_id: j.legacy_ticket_id || '', detail: (j.legacy_detail || '').slice(0, 400), actual_start: '', actual_end: '', actual_min: null, assist: true, lead_tech: j.assigned_tech || '' })
    }
  }
  // ordre = route_order manuel s'il existe, sinon priorité puis heure
  for (const k in m) m[k].jobs.sort((a, b) => (a.route_order || 9999) - (b.route_order || 9999) || (PRIO[a.priority] ?? 3) - (PRIO[b.priority] ?? 3) || ((a.start_h ?? 99) - (b.start_h ?? 99)))
  return m
}

// Absences par (technicien, jour) : En pause (global) + Tech Availability approuvées.
// Sert à hachurer la grille (absent ≠ garde).
async function absencesByTechDay (start, days) {
  const dates = rangeDates(start, days); const lo = dates[0]; const hi = dates[dates.length - 1]
  const techs = await fetchTechnicians()
  const m = {}
  for (const t of techs) if (t.status === PAUSE_STATUS) for (const d of dates) m[t.id + '|' + d] = 'En pause'
  const avs = await erp.list('Tech Availability', {
    filters: [['status', '=', 'Approuvé'], ['from_date', '<=', hi], ['to_date', '>=', lo]],
    fields: ['technician', 'from_date', 'to_date', 'availability_type', 'long_term'], limit: 1000,
  })
  for (const a of avs) for (const d of dates) if (d >= a.from_date && d <= a.to_date) m[a.technician + '|' + d] = (a.availability_type || 'Absent') + (a.long_term ? ' (longue durée)' : '')
  return m
}

// ── Routeur ──────────────────────────────────────────────────────────────────
// technician_id n'est pas le docname → résoudre le docname Dispatch Technician.
async function resolveTechName (techId) {
  const f = await erp.list('Dispatch Technician', { filters: [['technician_id', '=', techId]], fields: ['name'], limit: 1 })
  return f.length ? f[0].name : null
}

// ── CAPACITÉ par jour, découpée en segments AM / PM / Soir ──────────────────
// Capacité d'un segment = Σ (recouvrement du quart de chaque tech assigné ce jour-là avec la plage du segment).
// Utilisé   = Σ (recouvrement des jobs PLACÉS (start_time) ce jour-là avec le segment).
// Libre     = capacité − utilisé (heures-tech restantes). due_h = Σ durée estimée des jobs DUS ce jour (placés ou non) ;
// unplaced_h = part des dus non encore placés. overbooked = due_h > capacité totale du jour.
const DAY_SEGMENTS = [
  { key: 'am', label: 'AM', from: 8, to: 12 },
  { key: 'pm', label: 'PM', from: 12, to: 17 },
  { key: 'soir', label: 'Soir', from: 17, to: 21 },
]
const segOverlap = (s, e, a, b) => Math.max(0, Math.min(e, b) - Math.max(s, a))
const r1 = (x) => Math.round(x * 10) / 10
async function capacityByDay (start, days) {
  const dates = rangeDates(start, days)
  const templates = await fetchTemplates()
  const tpl = {}; for (const t of templates) tpl[t.name] = { s: timeToH(t.start_time), e: timeToH(t.end_time) }
  const asgs = await fetchAssignments(start, days) // Proposé + Publié = présence planifiée du tech
  const jobs = await erp.list('Dispatch Job', {
    filters: [['scheduled_date', 'in', dates], ['status', 'in', ['open', 'assigned', 'in_progress', 'On Hold']]],
    fields: ['name', 'scheduled_date', 'start_time', 'duration_h', 'assigned_tech'], limit: 5000,
  })
  const out = {}
  for (const d of dates) out[d] = { date: d, segments: DAY_SEGMENTS.map(s => ({ key: s.key, label: s.label, cap: 0, used: 0, free: 0 })), cap_h: 0, used_h: 0, free_h: 0, due_h: 0, jobs_due: 0, unplaced_h: 0, techs: 0 }
  const techSeen = {}
  for (const a of asgs) {
    const o = out[a.date]; if (!o) continue
    const w = tpl[a.shift]; if (!w || !(w.e > w.s)) continue
    DAY_SEGMENTS.forEach((seg, i) => { o.segments[i].cap += segOverlap(w.s, w.e, seg.from, seg.to) })
    const tk = a.date + '|' + a.tech; if (!techSeen[tk]) { techSeen[tk] = 1; o.techs++ }
  }
  for (const j of jobs) {
    const o = out[j.scheduled_date]; if (!o) continue
    const dur = Number(j.duration_h) || 0
    o.due_h += dur; o.jobs_due++
    const sh = j.start_time ? timeToH(j.start_time) : null
    if (sh != null && dur > 0) DAY_SEGMENTS.forEach((seg, i) => { o.segments[i].used += segOverlap(sh, sh + dur, seg.from, seg.to) })
    else if (!j.assigned_tech) o.unplaced_h += dur // dû mais pas encore placé sur l'horaire
  }
  for (const d of dates) {
    const o = out[d]
    o.segments.forEach(s => { s.cap = r1(s.cap); s.used = r1(s.used); s.free = r1(s.cap - s.used) })
    o.cap_h = r1(o.segments.reduce((x, s) => x + s.cap, 0))
    o.used_h = r1(o.segments.reduce((x, s) => x + s.used, 0))
    o.free_h = r1(o.cap_h - o.used_h)
    o.due_h = r1(o.due_h); o.unplaced_h = r1(o.unplaced_h)
    o.overbooked = o.cap_h > 0 && o.due_h > o.cap_h
  }
  return out
}

async function handle (req, res, method, path, url) {
  const qs = url.searchParams
  const start = qs.get('start')
  const days = parseInt(qs.get('days') || '7', 10)

  if (path === '/roster/technicians' && method === 'GET') {
    const techs = await fetchTechnicians()
    return json(res, 200, { technicians: techs, count: techs.length })
  }
  if (path === '/roster/templates' && method === 'GET') {
    return json(res, 200, { templates: await fetchTemplates() })
  }
  if (path === '/roster/templates' && method === 'POST') {
    const b = await parseBody(req)
    const r = await erp.create('Shift Template', {
      template_name: b.template_name, start_time: b.start_time, end_time: b.end_time,
      hours: b.hours, color: b.color || '#1976d2', zone: b.zone || '',
      default_required: b.default_required || 1, required_skills: b.required_skills || '', active: 1,
      on_call: b.on_call ? 1 : 0,
    })
    return json(res, r.ok ? 200 : 500, r)
  }
  if (path === '/roster/requirements' && method === 'GET') {
    if (!start) return json(res, 400, { error: 'start requis (YYYY-MM-DD)' })
    return json(res, 200, { requirements: await fetchRequirements(start, days) })
  }
  if (path === '/roster/requirements' && method === 'POST') {
    const b = await parseBody(req)
    const r = await erp.create('Shift Requirement', {
      requirement_date: b.requirement_date, shift_template: b.shift_template, zone: b.zone || '',
      required_count: b.required_count || 1, required_skills: b.required_skills || '',
    })
    return json(res, r.ok ? 200 : 500, r)
  }
  if (path === '/roster/assignments' && method === 'GET') {
    if (!start) return json(res, 400, { error: 'start requis' })
    return json(res, 200, { assignments: await fetchAssignments(start, days) })
  }
  if (path === '/roster/coverage' && method === 'GET') {
    if (!start) return json(res, 400, { error: 'start requis' })
    return json(res, 200, { coverage: await coverage(start, days) })
  }
  if (path === '/roster/capacity' && method === 'GET') { // dispo restante par jour × segment (AM/PM/Soir)
    if (!start) return json(res, 400, { error: 'start requis' })
    return json(res, 200, { capacity: await capacityByDay(start, days), segments: DAY_SEGMENTS })
  }
  // Optimisation de TOURNÉES (VRPTW + compétences + temps sur place) — proxy vers le solveur OR-Tools /route.
  // Le SPA construit le payload {jobs, vehicles, ...} (il a coords/skills/durées/domiciles/quarts) ; on relaie au solveur interne.
  if (path === '/roster/optimize-routes' && method === 'POST') {
    const body = await parseBody(req)
    if (!Array.isArray(body.jobs) || !Array.isArray(body.vehicles)) return json(res, 400, { error: 'jobs[] et vehicles[] requis' })
    if (!body.matrix) { // temps de ROUTE réels via OSRM si dispo ; sinon le solveur retombe sur le haversine
      try { const m = await osrmMatrix(body.jobs, body.vehicles); if (m) { body.matrix = m; body.matrix_source = 'osrm' } }
      catch (e) { log('osrm matrix skip: ' + (e && e.message)) }
    }
    try { return json(res, 200, await postSolver('/route', body)) }
    catch (e) { return json(res, 502, { status: 'ERROR', message: 'solveur injoignable: ' + (e && e.message) }) }
  }
  // Jours fériés QC (déterministe) — sert le badge « férié » du day-strip + la réduction de capacité par défaut.
  if (path === '/roster/holidays' && method === 'GET') {
    const from = url.searchParams.get('from') || todayET()
    const to = url.searchParams.get('to') || iso(addDays(new Date(), 120))
    return json(res, 200, { holidays: require('./holidays-qc').holidaysBetween(from, to) })
  }
  // Préavis de disponibilité AVANT un férié (~1 mois) : GET = aperçu (qui reste à notifier, AUCUN envoi) ; POST {date} = envoie le SMS aux techs non encore notifiés (idempotent).
  if (path === '/roster/holiday-notice' && (method === 'GET' || method === 'POST')) {
    const days = Math.min(120, Math.max(1, Number(url.searchParams.get('days')) || 35))
    const hols = require('./holidays-qc').holidaysBetween(todayET(), iso(addDays(new Date(), days)))
    const sent = readJsonFile('/app/data/holiday_notices.json', {}) // { 'YYYY-MM-DD': [techId,…] } — anti-doublon
    const techs = (await fetchTechnicians()).filter(t => t.phone && /\d/.test(String(t.phone)))
    if (method === 'GET') {
      return json(res, 200, {
        window_days: days, techs_with_phone: techs.length,
        holidays: hols.map(h => ({ date: h.date, name: h.name, notified: (sent[h.date] || []).length, to_notify: techs.filter(t => !(sent[h.date] || []).includes(t.id)).length })),
      })
    }
    const b = await parseBody(req); const date = String(b.date || (hols[0] && hols[0].date) || '')
    const hol = hols.find(h => h.date === date) || require('./holidays-qc').isHoliday(date)
    if (!hol) return json(res, 200, { ok: false, error: 'date non fériée ou hors fenêtre' })
    const already = new Set(sent[date] || []); const sendSms = require('./twilio').sendSmsInternal
    let count = 0; const failed = []
    for (const t of techs) {
      if (already.has(t.id)) continue
      const msg = `Targo — ${hol.name} (${date}) est un jour férié. Travailles-tu cette journée ? Sinon, indique ta disponibilité (et des dates de remplacement) dans ton app Targo. Merci de répondre tôt.`
      try { await sendSms(t.phone, msg, null); already.add(t.id); count++ } catch (e) { failed.push(t.id) }
    }
    sent[date] = [...already]; writeJsonFile('/app/data/holiday_notices.json', sent)
    return json(res, 200, { ok: true, date, name: hol.name, sent: count, failed })
  }
  // CROISEMENT temps estimé ↔ geofencing (rec C) : compare l'estimé (duration_h) au RÉEL sur site (actual_end − actual_start,
  // écrit par le webhook geofence /field/ts). Agrège par tech et par catégorie → calibrer les estimés + mémoire de fit.
  if (path === '/roster/geofence-stats' && method === 'GET') {
    const days = Math.min(365, Math.max(1, Number(url.searchParams.get('days')) || 90))
    const since = iso(addDays(new Date(), -days))
    let jobs = []
    // ⚠️ FILTRER un datetime (actual_start) plante en v16 (HTTP 500) → on filtre par date + en CODE (minutesBetween skip les vides).
    try { jobs = await erp.list('Dispatch Job', { filters: [['scheduled_date', '>', since]], fields: ['name', 'assigned_tech', 'job_type', 'duration_h', 'actual_start', 'actual_end', 'scheduled_date'], limit: 5000 }) } catch (e) { return json(res, 200, { ok: false, error: e.message }) }
    const perTech = {}, perCat = {}, rows = []
    for (const j of (jobs || [])) {
      const actual = minutesBetween(j.actual_start, j.actual_end); if (!actual || actual <= 0) continue
      const est = j.duration_h ? Math.round(j.duration_h * 60) : 0
      const cat = j.job_type || 'Autre'; const tech = j.assigned_tech || '—'
      rows.push({ job: j.name, tech, cat, est_min: est, actual_min: actual, variance_pct: est ? Math.round((actual - est) / est * 100) : null })
      for (const [map, key] of [[perTech, tech], [perCat, cat]]) { const m = map[key] || (map[key] = { n: 0, est: 0, actual: 0 }); m.n++; m.est += est; m.actual += actual }
    }
    const agg = (map) => Object.entries(map).map(([k, v]) => ({ key: k, n: v.n, avg_est_min: v.n ? Math.round(v.est / v.n) : 0, avg_actual_min: v.n ? Math.round(v.actual / v.n) : 0, avg_variance_pct: v.est ? Math.round((v.actual - v.est) / v.est * 100) : null })).sort((a, b) => b.n - a.n)
    return json(res, 200, { ok: true, window_days: days, geofenced_jobs: rows.length, per_tech: agg(perTech), per_category: agg(perCat), sample: rows.slice(0, 50) })
  }
  // Validation « service livré » d'un job : tire le statut service+modem (en ligne + signal) pour le client/adresse du
  // job, via le MÊME résolveur que la Boîte (serviceStatus). Croise tech-présent (geofence) + service-en-ligne.
  if (path === '/roster/job-service-status' && method === 'GET') {
    const jobName = url.searchParams.get('job')
    if (!jobName) return json(res, 400, { ok: false, error: 'job requis' })
    let job; try { job = await erp.get('Dispatch Job', jobName) } catch (e) { return json(res, 200, { ok: false, error: 'job introuvable' }) }
    const arg = job.customer ? { customer: job.customer, location: job.service_location || '' } : { q: job.address || job.customer_name || '' }
    try { return json(res, 200, await require('./ticket-collab').serviceStatus(arg)) }
    catch (e) { log('job-service-status ' + jobName + ': ' + e.message); return json(res, 200, { ok: false, error: e.message }) }
  }
  if (path === '/roster/job-characteristics' && method === 'GET') return json(res, 200, { ok: true, ...readJobChar() }) // table additive de durées (éditable)
  if (path === '/roster/job-characteristics' && method === 'POST') { // sauvegarde du tableur inline
    const b = await parseBody(req); if (!Array.isArray(b.items)) return json(res, 400, { ok: false, error: 'items requis' })
    const clean = b.items.filter(i => i && i.id && i.label).map(i => ({ id: String(i.id), cat: ['base', 'addon', 'modifier'].includes(i.cat) ? i.cat : 'addon', label: String(i.label).slice(0, 80), minutes: Math.max(0, Math.round(Number(i.minutes) || 0)), per_qty: !!i.per_qty, keywords: String(i.keywords || '').slice(0, 160), learned_min: i.learned_min != null ? Math.round(Number(i.learned_min)) : null, samples: Number(i.samples) || 0 }))
    const ok = writeJobChar(clean); return json(res, ok ? 200 : 500, { ok, count: clean.length })
  }
  if (path === '/roster/tech-link' && method === 'GET') { // lien app PWA par tech (à copier / SMS) + son téléphone
    const tech = qs.get('tech'); if (!tech) return json(res, 400, { ok: false, error: 'tech requis' })
    const rows = await erp.list('Dispatch Technician', { filters: [['name', '=', tech]], fields: ['name', 'full_name', 'phone'], limit: 1 })
    const t = rows && rows[0]
    return json(res, 200, { ok: true, tech, name: (t && t.full_name) || tech, phone: (t && t.phone) || '', url: techFieldLink(tech) })
  }
  if (path === '/roster/stats' && method === 'GET') {
    if (!start) return json(res, 400, { error: 'start requis' })
    return json(res, 200, { stats: await statsByDay(start, days) })
  }
  if (path === '/roster/occupancy' && method === 'GET') {
    if (!start) return json(res, 400, { error: 'start requis' })
    return json(res, 200, { occupancy: await occupancyByTechDay(start, days) })
  }
  if (path === '/roster/absences' && method === 'GET') {
    if (!start) return json(res, 400, { error: 'start requis' })
    return json(res, 200, { absences: await absencesByTechDay(start, days) })
  }
  // Absence d'UN JOUR depuis la grille (approuvée → hachurée tout de suite) ou retrait (jour unique seulement).
  if (path === '/roster/absence/set' && method === 'POST') {
    const b = await parseBody(req)
    if (!b.tech || !b.date) return json(res, 400, { error: 'tech + date requis' })
    if (b.remove) {
      const rows = await erp.list('Tech Availability', { filters: [['technician', '=', b.tech], ['from_date', '=', b.date], ['to_date', '=', b.date]], fields: ['name'], limit: 20 })
      let removed = 0; for (const r of rows) { const x = await retryWrite(() => erp.remove('Tech Availability', r.name)); if (x.ok) removed++ }
      return json(res, 200, { ok: true, removed })
    }
    const r = await retryWrite(() => erp.create('Tech Availability', { technician: b.tech, from_date: b.date, to_date: b.date, availability_type: b.type || 'Congé', status: 'Approuvé', reason: 'Grille' }))
    return json(res, r.ok ? 200 : 500, r)
  }
  // Prise de RDV : créneaux dispo (roster + compétence + zone) pour proposer/valider
  if (path === '/roster/book/slots' && method === 'GET') {
    if (!start) return json(res, 400, { error: 'start requis' })
    return json(res, 200, { slots: await bookingSlots({ skill: qs.get('skill') || '', zone: qs.get('zone') || '', duration: qs.get('duration') || 1, start, days, limit: parseInt(qs.get('limit') || '24', 10), aggregate: qs.get('aggregate') === '1' }) })
  }
  // Jobs à planifier (worklist du répartiteur)
  if (path === '/roster/book/jobs' && method === 'GET') {
    const rows = await erp.list('Dispatch Job', {
      filters: [['status', 'in', ['open', 'assigned']]],
      fields: ['name', 'customer_name', 'service_location', 'service_type', 'duration_h', 'scheduled_date', 'start_time', 'assigned_tech', 'booking_status', 'status'],
      orderBy: 'modified desc', limit: 100,
    })
    for (const j of rows) j.required_skill = skillForJob(j) // tag requis (table service_type → compétence)
    await attachLocations(rows) // adresse lisible (service_location = code)
    return json(res, 200, { jobs: rows })
  }
  // Méta pour l'éditeur de la table « type de job → compétence requise » (#56 booking)
  if (path === '/roster/book/meta' && method === 'GET') {
    const tk = await fetchTechnicians()
    const skills = [...new Set(tk.flatMap(t => t.skills || []))].sort()
    let types = []
    try { const jb = await erp.list('Dispatch Job', { fields: ['service_type'], limit: 3000 }); types = [...new Set(jb.map(j => j.service_type).filter(Boolean))].sort() } catch (e) {}
    return json(res, 200, { service_types: types, skills, skill_by_type: getBookingPolicy().skill_by_type || {}, level_by_type: getBookingPolicy().level_by_type || {}, level_by_skill: getBookingPolicy().level_by_skill || {} })
  }
  // Générer le lien client (token) pour un job → URL publique /book?token=
  if (path === '/roster/book/link' && method === 'POST') {
    const b = await parseBody(req); if (!b.job) return json(res, 400, { error: 'job requis' })
    const job = await erp.get('Dispatch Job', b.job, { fields: ['name', 'booking_token'] })
    if (!job) return json(res, 404, { error: 'job introuvable' })
    let token = job.booking_token
    if (!token) { token = crypto.randomBytes(12).toString('hex'); const r = await retryWrite(() => erp.update('Dispatch Job', b.job, { booking_token: token })); if (!r.ok) return json(res, 500, r) }
    return json(res, 200, { ok: true, token, url: (cfg.HUB_PUBLIC_URL || 'https://msg.gigafibre.ca') + '/book?token=' + token })
  }
  // Aviser le client d'un report : lien /book + SMS Twilio + statut « À reporter »
  if (path === '/roster/job/notify-reschedule' && method === 'POST') {
    const b = await parseBody(req); if (!b.job) return json(res, 400, { error: 'job requis' })
    const job = await erp.get('Dispatch Job', b.job, { fields: ['name', 'booking_token', 'customer', 'customer_name'] })
    if (!job) return json(res, 404, { error: 'job introuvable' })
    let token = job.booking_token
    if (!token) { token = crypto.randomBytes(12).toString('hex'); await retryWrite(() => erp.update('Dispatch Job', b.job, { booking_token: token })) }
    const url = (cfg.HUB_PUBLIC_URL || 'https://msg.gigafibre.ca') + '/book?token=' + token
    // Désassigner (retour au pool) : on vide le créneau pour que /book repropose des options
    await retryWrite(() => erp.update('Dispatch Job', b.job, { booking_status: 'À reporter', scheduled_date: null, start_time: null, assigned_tech: null, status: 'open' }))
    let phone = b.phone
    if (!phone && job.customer) { try { const c = await erp.get('Customer', job.customer, { fields: ['mobile_no'] }); phone = c && c.mobile_no } catch (e) {} }
    if (!phone) return json(res, 200, { ok: true, url, sms: false, note: 'Statut « À reporter » posé. Aucun téléphone trouvé — fournir "phone" pour envoyer le SMS.' })
    const msg = b.message || `Bonjour, votre rendez-vous Gigafibre doit être reporté. Choisissez un nouveau créneau qui vous convient : ${url}  Merci de votre compréhension.`
    let sid = null
    try { sid = await require('./twilio').sendSmsInternal(phone, msg, job.customer) } catch (e) { return json(res, 200, { ok: true, url, sms: false, error: String(e.message || e) }) }
    return json(res, 200, { ok: true, url, sms: !!sid, sid, phone })
  }
  // File « À reporter » (jobs à recontacter) — pour le superviseur
  if (path === '/roster/jobs-to-reschedule' && method === 'GET') {
    const rows = await erp.list('Dispatch Job', { filters: [['booking_status', '=', 'À reporter']], fields: ['name', 'customer_name', 'service_location', 'service_type', 'duration_h', 'scheduled_date', 'assigned_tech', 'booking_token'], limit: 100 })
    await attachLocations(rows || []) // adresse lisible
    return json(res, 200, { jobs: rows || [] })
  }
  // Impact d'un retrait de compétence : jobs assignés à un tech qui EXIGENT cette compétence (devenus invalides).
  if (path === '/roster/skill-impact' && method === 'GET') {
    const tech = qs.get('tech'); const skill = qs.get('skill')
    if (!tech || !skill) return json(res, 400, { error: 'tech + skill requis' })
    const rows = await erp.list('Dispatch Job', { filters: [['assigned_tech', '=', tech], ['status', 'in', ['open', 'assigned']]], fields: ['name', 'customer_name', 'service_location', 'service_type', 'duration_h', 'scheduled_date', 'start_time'], limit: 500 })
    const impacted = (rows || []).filter(j => skillForJob(j) === skill)
    await attachLocations(impacted)
    return json(res, 200, { jobs: impacted })
  }
  // Impact d'une ABSENCE : jobs assignés à un tech sur des dates données (devenus à redistribuer).
  if (path === '/roster/absence-impact' && method === 'GET') {
    const tech = qs.get('tech'); const dates = (qs.get('dates') || '').split(',').filter(Boolean)
    if (!tech || !dates.length) return json(res, 400, { error: 'tech + dates requis' })
    const rows = await erp.list('Dispatch Job', { filters: [['assigned_tech', '=', tech], ['scheduled_date', 'in', dates], ['status', 'in', ['open', 'assigned']]], fields: ['name', 'customer_name', 'service_location', 'service_type', 'duration_h', 'scheduled_date', 'start_time'], limit: 500 })
    await attachLocations(rows || [])
    return json(res, 200, { jobs: rows || [] })
  }
  // Candidats CLASSÉS pour reprendre un job : techs qualifiés + LIBRES au même créneau (≠ l'impacté).
  if (path === '/roster/job-candidates' && method === 'GET') {
    const jobName = qs.get('job'); const exclude = qs.get('exclude') || ''
    if (!jobName) return json(res, 400, { error: 'job requis' })
    let job = null
    try { job = await erp.get('Dispatch Job', jobName, { fields: ['name', 'scheduled_date', 'start_time', 'duration_h', 'service_type'] }) } catch (e) {}
    if (!job || !job.scheduled_date || !job.start_time) return json(res, 200, { candidates: [], date: (job && job.scheduled_date) || '', start: '' })
    const skill = skillForJob(job); const start = String(job.start_time).slice(0, 5); const dur = Number(job.duration_h) || 1
    const slots = await bookingSlots({ skill, duration: dur, start: job.scheduled_date, days: 1, limit: 500, ignorePolicy: true })
    const seen = new Set(); const cands = []
    for (const s of slots) { if (s.start !== start || s.tech === exclude || seen.has(s.tech)) continue; seen.add(s.tech); cands.push({ tech: s.tech, tech_name: s.tech_name }) }
    return json(res, 200, { candidates: cands.slice(0, 6), date: job.scheduled_date, start, skill })
  }
  // Redistribuer les jobs impactés. 3 voies : b.plan (réassign explicite par tech / requeue) · b.mode 'auto' (re-match
  // auto au même créneau, compétence b.skill ou par job) · 'requeue' (À recontacter).
  if (path === '/roster/skill-impact/redistribute' && method === 'POST') {
    const b = await parseBody(req); const mode = b.mode || 'requeue'
    if (Array.isArray(b.plan)) { // plan explicite : { job, tech } (réassigner) OU { job, requeue:true }
      let reassigned = 0; let requeued = 0; let errors = 0
      for (const p of b.plan) {
        if (!p || !p.job) { errors++; continue }
        if (p.tech && !p.requeue) { const r = await retryWrite(() => erp.update('Dispatch Job', p.job, { assigned_tech: p.tech, status: 'assigned', booking_status: 'Confirmé' })); if (r.ok) reassigned++; else errors++ }
        else { const r = await retryWrite(() => erp.update('Dispatch Job', p.job, { booking_status: 'À reporter', scheduled_date: null, start_time: null, assigned_tech: null, status: 'open' })); if (r.ok) requeued++; else errors++ }
      }
      return json(res, 200, { ok: errors === 0, reassigned, requeued, errors })
    }
    let reassigned = 0; let requeued = 0; let errors = 0; const details = []
    for (const jobName of (b.jobs || [])) {
      let job = null
      try { job = await erp.get('Dispatch Job', jobName, { fields: ['name', 'scheduled_date', 'start_time', 'duration_h', 'customer_name', 'service_type'] }) } catch (e) {}
      if (!job) { errors++; continue }
      if (mode === 'auto' && job.scheduled_date && job.start_time) { // re-match au même créneau, tech qualifié ≠ l'impacté
        const sk = b.skill || skillForJob(job) // compétence requise (globale si fournie, sinon par job → cas absence)
        const r = await confirmWindow(jobName, job.scheduled_date, String(job.start_time).slice(0, 5), Number(job.duration_h) || 1, sk)
        if (r.ok) { reassigned++; details.push({ job: jobName, customer: job.customer_name, tech: r.tech, action: 'réassigné' }); continue }
      }
      const r = await retryWrite(() => erp.update('Dispatch Job', jobName, { booking_status: 'À reporter', scheduled_date: null, start_time: null, assigned_tech: null, status: 'open' }))
      if (r.ok) { requeued++; details.push({ job: jobName, customer: job.customer_name, action: 'à recontacter' }) } else errors++
    }
    return json(res, 200, { ok: errors === 0, reassigned, requeued, errors, details })
  }
  // Jobs À ASSIGNER (non assignés) avec leur groupe/dépendances (parent_job, depends_on, step_order, chaîne On Hold).
  if (path === '/roster/unassigned-jobs' && method === 'GET') {
    const age = _poolCache.jobs ? (nowMs() - _poolCache.ts) : Infinity
    if (_poolCache.jobs && age < POOL_TTL_MS) return json(res, 200, { jobs: _poolCache.jobs, cached: true }) // frais → instantané
    if (_poolCache.jobs) { refreshPoolBg(); return json(res, 200, { jobs: _poolCache.jobs, cached: 'stale' }) } // périmé → sert + rafraîchit en fond
    try { const jobs = await buildUnassigned(); _poolCache = { ts: nowMs(), jobs, building: null }; return json(res, 200, { jobs }) } // à froid → build live
    catch (e) { log('pool build err: ' + (e && e.message)); return json(res, 200, { jobs: [] }) }
  }
  // Assigner un job à un tech (depuis le panneau flottant glisser-déposer) — date = case déposée.
  // On pose AUSSI un start_time (premier trou libre du shift) : sans heure, le job compte dans
  // les heures occupées mais n'affiche AUCUN bloc sur la timeline → la barre d'occupation semble figée.
  if (path === '/roster/assign-job' && method === 'POST') {
    const b = await parseBody(req); if (!b.job || !b.tech) return json(res, 400, { error: 'job + tech requis' })
    let dur = 1
    try { const jb = await erp.get('Dispatch Job', b.job, { fields: ['duration_h'] }); dur = Number(jb && jb.duration_h) || 1 } catch (e) {}
    const patch = { assigned_tech: b.tech, status: 'assigned', duration_h: dur } // duration_h garanti → occupation comptée
    if (b.date) patch.scheduled_date = b.date
    let placed = null
    if (b.start) patch.start_time = (String(b.start).length === 5 ? b.start + ':00' : b.start)
    else if (b.date) { // premier trou libre dans le shift du tech ce jour-là
      try { const d = await loadBookingData(b.date, 1); const h = firstFitStart(d, b.tech, b.date, dur); if (h != null) { placed = hToTime(h); patch.start_time = placed } } catch (e) {}
    }
    const r = await retryWrite(() => erp.update('Dispatch Job', b.job, patch))
    if (r.ok) invalidatePool() // le job quitte le pool → rafraîchir le cache
    return json(res, r.ok ? 200 : 500, { ...r, job: b.job, tech: b.tech, start_time: placed, duration_h: dur })
  }
  if (path === '/roster/job-level' && method === 'POST') { // niveau requis PERSISTANT par job (store hub durable)
    const b = await parseBody(req); if (!b.name) return json(res, 400, { error: 'name requis' })
    setJobLevel(b.name, b.level); invalidatePool() // le pool porte required_level → rafraîchir
    return json(res, 200, { ok: true, name: b.name, level: Math.max(0, Math.min(5, Math.round(Number(b.level) || 0))) })
  }
  if (path === '/roster/job-flag' && method === 'POST') { // PRIORITÉ de dispatch persistante par job (SLA/commercial) → store hub durable (surcharge)
    const b = await parseBody(req); if (!b.name) return json(res, 400, { error: 'name requis' })
    const p = String(b.priority || '').toLowerCase()
    setJobFlag(b.name, p); invalidatePool() // le pool porte j.priority → rafraîchir
    return json(res, 200, { ok: true, name: b.name, priority: PRIO_LEVELS.includes(p) ? p : '' })
  }
  // Persister UN quart immédiatement (ex. « Créer un quart et assigner » sur un tech sans quart) — sinon `addShift` reste LOCAL
  // (status Proposé en mémoire) et le quart disparaît au rechargement. Idempotent par clé tech|date|template (pas de doublon vs Publier).
  if (path === '/roster/shift' && method === 'POST') {
    const b = await parseBody(req); if (!b.tech || !b.date || !b.shift) return json(res, 400, { error: 'tech + date + shift requis' })
    const existing = await fetchAssignments(b.date, 1)
    if (existing.some(a => a.tech === b.tech && a.date === b.date && a.shift === b.shift)) return json(res, 200, { ok: true, existed: true })
    const r = await retryWrite(() => erp.create('Shift Assignment', {
      technician: b.tech, technician_name: b.tech_name || '', assignment_date: b.date,
      shift_template: b.shift, zone: b.zone || '', hours: Number(b.hours) || 0,
      status: 'Publié', source: 'manuel',
    }))
    return json(res, r.ok ? 200 : 500, { ...r, name: r.name })
  }
  // Réordonner / re-prioriser les jobs d'un tech×jour (depuis le menu de la cellule).
  // body.updates = [{ job, route_order, priority? }] — SÉQUENTIEL (frappe_pg).
  if (path === '/roster/reorder-jobs' && method === 'POST') {
    const b = await parseBody(req); const ups = b.updates || []
    let ok = 0; let errors = 0
    for (const u of ups) {
      if (!u.job) continue
      const patch = {}
      if (u.route_order != null) patch.route_order = Number(u.route_order) || 0
      if (u.priority) patch.priority = u.priority
      if (u.duration_h != null && Number(u.duration_h) > 0) patch.duration_h = Number(u.duration_h) // durée éditée dans le timeline
      if (u.start_time) patch.start_time = (String(u.start_time).length === 5 ? u.start_time + ':00' : u.start_time) // heure recalculée par le planificateur de tournée
      if (!Object.keys(patch).length) continue
      const r = await retryWrite(() => erp.update('Dispatch Job', u.job, patch))
      if (r.ok) ok++; else errors++
    }
    return json(res, 200, { ok: true, updated: ok, errors })
  }
  // Retirer un job d'un tech (depuis l'éditeur de journée) → retour au pool (non assigné).
  if (path === '/roster/unassign-job' && method === 'POST') {
    const b = await parseBody(req); if (!b.job) return json(res, 400, { error: 'job requis' })
    const r = await retryWrite(() => erp.update('Dispatch Job', b.job, { assigned_tech: null, status: 'open', start_time: null }))
    if (r.ok) invalidatePool() // le job revient au pool → rafraîchir le cache
    return json(res, r.ok ? 200 : 500, { ...r, job: b.job })
  }
  // Lire / éditer l'ÉQUIPE d'un job (assistants en renfort) — le LEAD (assigned_tech) reste INCHANGÉ.
  //   GET  ?job=X                         → liste actuelle des assistants
  //   POST {job, add:{tech_id,...}}        → AJOUTE (dédup sur tech_id), sans clobber des autres
  //   POST {job, remove:tech_id}           → RETIRE
  //   POST {job, assistants:[...]}         → REMPLACE toute la table-enfant
  // PUT partiel ⇒ assigned_tech / scheduled_date / etc. préservés. Chemin d'écriture UNIQUE (features/workforce).
  if (path === '/roster/job/team' && (method === 'GET' || method === 'POST')) {
    const b = method === 'POST' ? await parseBody(req) : {}
    const job = b.job || qs.get('job')
    if (!job) return json(res, 400, { error: 'job requis' })
    const norm = (a) => ({ tech_id: String(a.tech_id), tech_name: String(a.tech_name || ''), duration_h: Number(a.duration_h) || 0, note: String(a.note || '').slice(0, 140), pinned: a.pinned ? 1 : 0 })
    let cur = []
    try { cur = await erp.list('Dispatch Job Assistant', { filters: [['parent', '=', job]], fields: ['tech_id', 'tech_name', 'duration_h', 'note', 'pinned'], limit: 50 }) } catch (e) { cur = [] }
    if (method === 'GET') return json(res, 200, { job, assistants: cur.map(norm) })
    let rows
    if (b.add && b.add.tech_id) { rows = cur.filter(a => String(a.tech_id) !== String(b.add.tech_id)).map(norm); rows.push(norm(b.add)) }
    else if (b.remove) { rows = cur.filter(a => String(a.tech_id) !== String(b.remove)).map(norm) }
    else { rows = (b.assistants || []).filter(a => a && a.tech_id).map(norm) }
    const r = await retryWrite(() => erp.update('Dispatch Job', job, { assistants: rows }))
    return json(res, r.ok ? 200 : 500, { ...r, job, assistants: rows.length, team: rows })
  }
  // Situer manuellement un job « hors carte » : pose latitude/longitude (+ adresse) choisis via le sélecteur Mapbox Ops.
  if (path === '/roster/job/set-location' && method === 'POST') {
    const b = await parseBody(req); if (!b.job) return json(res, 400, { error: 'job requis' })
    const lat = Number(b.lat), lon = Number(b.lon)
    if (!isFinite(lat) || !isFinite(lon) || Math.abs(lat) > 90 || Math.abs(lon) > 180) return json(res, 400, { error: 'lat/lon invalides' })
    const patch = { latitude: lat, longitude: lon }
    if (b.address != null && String(b.address).trim() !== '') patch.address = String(b.address).slice(0, 140)
    const r = await retryWrite(() => erp.update('Dispatch Job', b.job, patch))
    return json(res, r.ok ? 200 : 500, { ...r, job: b.job, latitude: lat, longitude: lon })
  }
  // Actions rapides du pool (mobile, façon Gmail) : modifier des champs « dispatchables » d'un Dispatch Job — LISTE BLANCHE stricte.
  // priority (urgent|high|medium|low) · status (open|On Hold|Cancelled|assigned) · required_skill · scheduled_date (YYYY-MM-DD, '' = effacer) ·
  // notes = note importante du RÉPARTITEUR (ex. « appeler 30 min avant », « préfère AM ») — DISTINCTE de completion_notes (journal du technicien).
  if (path === '/roster/job/update' && method === 'POST') {
    const b = await parseBody(req); if (!b.job) return json(res, 400, { error: 'job requis' })
    const src = b.patch || b; const patch = {}
    if (src.priority !== undefined) { const p = String(src.priority || ''); if (p && !['low', 'medium', 'high'].includes(p)) return json(res, 400, { error: 'priority invalide (low|medium|high)' }); patch.priority = p }
    if (src.status !== undefined) { const s = String(src.status || ''); if (s && !['open', 'On Hold', 'Cancelled', 'assigned'].includes(s)) return json(res, 400, { error: 'status invalide' }); patch.status = s }
    if (src.required_skill !== undefined) patch.required_skill = String(src.required_skill || '').slice(0, 80)
    if (src.scheduled_date !== undefined) { const d = String(src.scheduled_date || ''); if (d && !/^\d{4}-\d{2}-\d{2}$/.test(d)) return json(res, 400, { error: 'date invalide' }); patch.scheduled_date = d || null }
    if (src.notes !== undefined) patch.notes = String(src.notes || '').slice(0, 2000)
    if (!Object.keys(patch).length) return json(res, 400, { error: 'aucun champ modifiable' })
    const r = await retryWrite(() => erp.update('Dispatch Job', b.job, patch))
    if (r.ok) invalidatePool() // priorité/statut/date/compétence/note changés → rafraîchir le cache du pool
    return json(res, r.ok ? 200 : 500, { ...r, job: b.job, patch })
  }
  // CHRONO (boucle de capture) : début/fin réels → durée réelle (carburant de l'apprentissage des durées par type×tech).
  if (path === '/roster/job/start' && method === 'POST') {
    const b = await parseBody(req); if (!b.job) return json(res, 400, { error: 'job requis' })
    const now = nowFrappe()
    const r = await retryWrite(() => erp.update('Dispatch Job', b.job, { actual_start: now, actual_end: '', status: 'In Progress' }))
    return json(res, r.ok ? 200 : 500, { ...r, job: b.job, actual_start: now })
  }
  if (path === '/roster/job/finish' && method === 'POST') {
    const b = await parseBody(req); if (!b.job) return json(res, 400, { error: 'job requis' })
    const cur = await erp.list('Dispatch Job', { filters: [['name', '=', b.job]], fields: ['actual_start'], limit: 1 })
    const startTs = (cur && cur[0] && cur[0].actual_start) || null
    const now = nowFrappe()
    const patch = { actual_end: now, status: 'Completed' }; if (!startTs) patch.actual_start = now // borne si jamais démarré
    const r = await retryWrite(() => erp.update('Dispatch Job', b.job, patch))
    return json(res, r.ok ? 200 : 500, { ...r, job: b.job, actual_minutes: minutesBetween(startTs || now, now) })
  }
  // Backfill : pose un start_time (premier trou libre) sur les jobs DÉJÀ assignés mais SANS heure
  // → leurs blocs d'occupation apparaissent enfin sur la grille. Idempotent (ne touche que start_time vide).
  if (path === '/roster/backfill-start-times' && method === 'POST') {
    const b = await parseBody(req)
    const start = b.start || todayET(); const days = Number(b.days) || 14
    const dates = rangeDates(start, days)
    const rows = await erp.list('Dispatch Job', {
      filters: [['scheduled_date', 'in', dates], ['status', 'in', ['open', 'assigned', 'in_progress']]],
      fields: ['name', 'assigned_tech', 'scheduled_date', 'start_time', 'duration_h'], limit: 5000,
    })
    const todo = (rows || []).filter(j => j.assigned_tech && j.scheduled_date && !j.start_time)
    const d = await loadBookingData(start, days) // chargé UNE fois ; on mute d.booked au fil de l'eau pour empiler
    let placed = 0; const details = []
    for (const j of todo) { // SÉQUENTIEL (frappe_pg ne supporte pas la concurrence)
      const dur = Number(j.duration_h) || 1
      const k = j.assigned_tech + '|' + j.scheduled_date
      if (!d.booked[k]) d.booked[k] = []
      const h = firstFitStart(d, j.assigned_tech, j.scheduled_date, dur)
      if (h == null) { details.push({ job: j.name, skipped: 'pas de shift régulier ce jour-là' }); continue }
      const r = await retryWrite(() => erp.update('Dispatch Job', j.name, { start_time: hToTime(h), duration_h: dur }))
      if (r.ok) { d.booked[k].push({ s: h, e: h + dur }); placed++; details.push({ job: j.name, tech: j.assigned_tech, date: j.scheduled_date, start: hToTime(h) }) }
      else details.push({ job: j.name, error: r.error || 'update failed' })
    }
    return json(res, 200, { ok: true, candidates: todo.length, placed, details })
  }
  // Hold : réserver temporairement une fenêtre (agent au tél. ou client qui sélectionne)
  // → la fenêtre est retirée des dispos des autres pendant `minutes` (défaut politique).
  if (path === '/roster/book/hold' && method === 'POST') {
    const b = await parseBody(req)
    if (!b.date || !b.start) return json(res, 400, { error: 'date + start requis' })
    const key = b.date + '|' + (String(b.start).length >= 5 ? String(b.start).slice(0, 5) : b.start)
    if (b.release) { releaseHold(key); return json(res, 200, { ok: true, released: true, key }) }
    const minutes = b.minutes || getBookingPolicy().hold_minutes
    return json(res, 200, { ok: true, key, holds: addHold(key, minutes), minutes })
  }
  // Fit : 3 dispos classées du client → 1er choix tenable, sinon proposer
  if (path === '/roster/book/fit' && method === 'POST') {
    const b = await parseBody(req)
    return json(res, 200, await fitBooking({ skill: b.skill || '', zone: b.zone || '', duration: b.duration || 1, prefs: b.prefs || [] }))
  }
  // Confirmer un RDV sur un Dispatch Job existant
  if (path === '/roster/book/confirm' && method === 'POST') {
    const b = await parseBody(req)
    if (!b.job) return json(res, 400, { error: 'job requis' })
    const st = (b.start || '').length === 5 ? b.start + ':00' : b.start
    const patch = { scheduled_date: b.date, start_time: st, status: 'assigned', booking_status: 'Confirmé', booking_prefs: JSON.stringify(b.prefs || []) }
    if (b.tech) patch.assigned_tech = b.tech
    if (b.duration) patch.duration_h = b.duration
    const r = await retryWrite(() => erp.update('Dispatch Job', b.job, patch))
    if (r.ok && b.date && b.start) releaseHold(b.date + '|' + (String(b.start).slice(0, 5)))
    return json(res, r.ok ? 200 : 500, r)
  }
  // Créer plusieurs besoins d'un coup (depuis l'éditeur de demande)
  if (path === '/roster/requirements/bulk' && method === 'POST') {
    const b = await parseBody(req); const errors = []; let created = 0
    for (const rq of b.requirements || []) {
      const r = await retryWrite(() => erp.create('Shift Requirement', {
        requirement_date: rq.requirement_date, shift_template: rq.shift_template,
        zone: rq.zone || '', required_count: rq.required_count || 1, required_skills: rq.required_skills || '',
      }))
      if (r.ok) created++; else errors.push(rq)
    }
    return json(res, 200, { ok: errors.length === 0, created, errors: errors.length })
  }
  // Vider les besoins d'une période (avant de ré-appliquer la demande)
  if (path === '/roster/requirements/clear' && method === 'POST') {
    const b = await parseBody(req)
    const reqs = await fetchRequirements(b.start, b.days || 7)
    let deleted = 0
    for (const rq of reqs) { const r = await retryWrite(() => erp.remove('Shift Requirement', rq.name)); if (r.ok) deleted++ }
    return json(res, 200, { ok: true, deleted })
  }
  if (path === '/roster/generate' && method === 'POST') {
    const b = await parseBody(req)
    if (!b.start) return json(res, 400, { error: 'start requis' })
    try {
      return json(res, 200, await generate(b.start, b.days || 7, b.weights))
    } catch (e) {
      return json(res, 502, { error: 'solveur injoignable ou erreur: ' + e.message })
    }
  }
  if (path === '/roster/publish' && method === 'POST') {
    const b = await parseBody(req)
    return json(res, 200, await publish(b.assignments))
  }
  // Publier = réécrire la semaine (efface tout sur la période, recrée la grille).
  // Idempotent + anti-doublons (contrairement au diff par case).
  if (path === '/roster/publish-week' && method === 'POST') {
    const b = await parseBody(req)
    const existing = await fetchAssignments(b.start, b.days || 7)
    const desired = b.assignments || []
    // DIFF par clé tech|date|shift : on ne touche QUE ce qui a changé (≫ rapide vs wipe+recreate complet).
    const keyOf = (a) => a.tech + '|' + a.date + '|' + a.shift
    const existByKey = {}; for (const a of existing) existByKey[keyOf(a)] = a
    const desiredKeys = new Set(desired.map(keyOf))
    let deleted = 0; let created = 0; let errors = 0; let unchanged = 0
    for (const a of existing) { // supprimer ceux qui ne sont plus voulus
      if (desiredKeys.has(keyOf(a))) continue
      const r = await retryWrite(() => erp.remove('Shift Assignment', a.name)); if (r.ok) deleted++
    }
    for (const a of desired) { // créer seulement les nouveaux ; ignorer les inchangés
      if (existByKey[keyOf(a)]) { unchanged++; continue }
      const r = await retryWrite(() => erp.create('Shift Assignment', {
        technician: a.tech, technician_name: a.tech_name || '', assignment_date: a.date,
        shift_template: a.shift, zone: a.zone || '', hours: Number(a.hours) || 0,
        status: 'Publié', source: a.source || 'solveur',
      }))
      if (r.ok) created++; else errors++
    }
    let notified = 0
    if (b.notify && created) {  // SMS opt-in aux techs (Twilio) — non bloquant
      try {
        const techs = await fetchTechnicians()
        const phoneById = Object.fromEntries(techs.map(t => [t.id, t.phone]))
        const tplName = Object.fromEntries((await fetchTemplates()).map(t => [t.name, t.template_name || t.name]))
        const byTech = {}
        for (const a of (b.assignments || [])) (byTech[a.tech] || (byTech[a.tech] = [])).push(a)
        const sendSms = require('./twilio').sendSmsInternal
        for (const tid in byTech) {
          const phone = phoneById[tid]; if (!phone) continue
          const lines = byTech[tid].slice().sort((x, y) => x.date.localeCompare(y.date)).map(a => a.date.slice(5) + ' ' + (tplName[a.shift] || a.shift)).join(' · ')
          try { await sendSms(phone, 'Targo — votre horaire publié : ' + lines); notified++ } catch (e) { /* skip ce tech */ }
        }
      } catch (e) { /* notif non bloquante */ }
    }
    return json(res, 200, { ok: errors === 0, created, deleted, errors, notified, unchanged })
  }
  // Garde : matérialiser la rotation sur un HORIZON (plusieurs semaines) — comme un évènement récurrent.
  // Wipe ROBUSTE : on supprime TOUTE garde (tout template on_call) dans la plage, pas seulement les shifts
  // courants — sinon une ancienne garde sous un autre nom de template survit et fausse la rotation
  // (« la suite est bousillée »). Puis recréation depuis la rotation déterministe (= le calque live).
  if (path === '/roster/garde/apply' && method === 'POST') {
    const b = await parseBody(req)
    const dates = rangeDates(b.start, (b.weeks || 1) * 7)
    const tpls = await fetchTemplates()
    const gardeTpls = tpls.filter(t => t.on_call).map(t => t.name)
    let deleted = 0
    if (gardeTpls.length && dates.length) {
      const existing = await erp.list('Shift Assignment', { filters: [['shift_template', 'in', gardeTpls], ['assignment_date', 'in', dates]], fields: ['name'], limit: 5000 })
      for (const a of existing) { const r = await retryWrite(() => erp.remove('Shift Assignment', a.name)); if (r.ok) deleted++ }
    }
    let created = 0; let errors = 0
    for (const a of (b.assignments || [])) {
      const r = await retryWrite(() => erp.create('Shift Assignment', {
        technician: a.tech, technician_name: a.tech_name || '', assignment_date: a.date,
        shift_template: a.shift, zone: a.zone || '', hours: Number(a.hours) || 0,
        status: 'Publié', source: 'manuel',
      }))
      if (r.ok) created++; else errors++
    }
    return json(res, 200, { ok: errors === 0, created, deleted, errors })
  }
  // Modifier / supprimer un type de shift (Shift Template)
  const mTpl = path.match(/^\/roster\/template\/(.+)$/)
  if (mTpl && method === 'PUT') {
    const name = decodeURIComponent(mTpl[1]); const b = await parseBody(req)
    const patch = {}
    for (const f of ['start_time', 'end_time', 'hours', 'color', 'zone', 'default_required', 'required_skills', 'active', 'on_call']) if (b[f] !== undefined) patch[f] = b[f]
    const r = await retryWrite(() => erp.update('Shift Template', name, patch))
    return json(res, r.ok ? 200 : 500, r)
  }
  if (mTpl && method === 'DELETE') {
    const name = decodeURIComponent(mTpl[1]); const r = await retryWrite(() => erp.remove('Shift Template', name))
    return json(res, r.ok ? 200 : 500, r)
  }
  if (path === '/roster/availability' && method === 'GET') {
    const status = qs.get('status') || ''
    const rows = await erp.list('Tech Availability', {
      filters: status ? [['status', '=', status]] : [],
      fields: ['name', 'technician', 'technician_name', 'availability_type', 'from_date', 'to_date', 'reason', 'status', 'approver'],
      orderBy: 'modified desc', limit: 200,
    })
    return json(res, 200, { availability: rows })
  }
  if (path === '/roster/availability' && method === 'POST') {
    const b = await parseBody(req)
    const r = await erp.create('Tech Availability', {
      technician: b.technician, technician_name: b.technician_name || '',
      availability_type: b.availability_type || 'Congé', status: 'Demandé',
      from_date: b.from_date, to_date: b.to_date, reason: b.reason || '',
      long_term: b.long_term ? 1 : 0,
    })
    return json(res, r.ok ? 200 : 500, r)
  }
  const mApprove = path.match(/^\/roster\/availability\/(.+)\/approve$/)
  if (mApprove && method === 'POST') {
    const name = decodeURIComponent(mApprove[1])
    const b = await parseBody(req)
    const r = await retryWrite(() => erp.update('Tech Availability', name, { status: b.reject ? 'Refusé' : 'Approuvé', approver: b.approver || '' }))
    return json(res, r.ok ? 200 : 500, r)
  }
  const mSkills = path.match(/^\/roster\/technician\/(.+)\/skills$/)
  if (mSkills && method === 'POST') {
    const techId = decodeURIComponent(mSkills[1]); const b = await parseBody(req)
    const techName = await resolveTechName(techId)
    if (!techName) return json(res, 404, { error: 'technicien introuvable: ' + techId })
    const patch = { skills: (b.skills || '').trim() }
    if (b.skill_levels !== undefined) patch.skill_levels = typeof b.skill_levels === 'string' ? b.skill_levels : JSON.stringify(b.skill_levels || {}) // niveaux 1–5 par compétence (JSON)
    if (b.skill_eff !== undefined) patch.skill_eff = typeof b.skill_eff === 'string' ? b.skill_eff : JSON.stringify(b.skill_eff || {}) // efficacité (facteur vitesse) PAR compétence (JSON)
    const r = await retryWrite(() => erp.update('Dispatch Technician', techName, patch))
    return json(res, r.ok ? 200 : 500, { ...r, technician: techId })
  }
  const mCost = path.match(/^\/roster\/technician\/(.+)\/cost$/)
  if (mCost && method === 'POST') {
    const techId = decodeURIComponent(mCost[1]); const b = await parseBody(req)
    const techName = await resolveTechName(techId)
    if (!techName) return json(res, 404, { error: 'technicien introuvable: ' + techId })
    const r = await retryWrite(() => erp.update('Dispatch Technician', techName, { cost_salary_h: Number(b.salary) || 0, cost_charges_pct: Number(b.charges) || 0, cost_other_h: Number(b.other) || 0 }))
    return json(res, r.ok ? 200 : 500, { ...r, technician: techId })
  }
  const mEff = path.match(/^\/roster\/technician\/(.+)\/efficiency$/)
  if (mEff && method === 'POST') {
    const techId = decodeURIComponent(mEff[1]); const b = await parseBody(req)
    const techName = await resolveTechName(techId)
    if (!techName) return json(res, 404, { error: 'technicien introuvable: ' + techId })
    const r = await retryWrite(() => erp.update('Dispatch Technician', techName, { efficiency: Number(b.efficiency) || 1 }))
    return json(res, r.ok ? 200 : 500, { ...r, technician: techId, efficiency: Number(b.efficiency) || 1 })
  }
  const mPause = path.match(/^\/roster\/technician\/(.+)\/pause$/)
  if (mPause && method === 'POST') {
    const techId = decodeURIComponent(mPause[1])
    const b = await parseBody(req)
    // technician_id n'est pas le docname → retrouver le doc
    const techName = await resolveTechName(techId)
    if (!techName) return json(res, 404, { error: 'technicien introuvable: ' + techId })
    const patch = { status: b.paused ? PAUSE_STATUS : AVAIL_STATUS }
    if (b.paused && b.reason) patch.absence_reason = b.reason
    const r = await retryWrite(() => erp.update('Dispatch Technician', techName, patch))
    return json(res, r.ok ? 200 : 500, { ...r, technician: techId, status: patch.status })
  }
  // Associer / changer (ou retirer) l'appareil Traccar d'un tech (GPS live + tracé) — éditable INLINE depuis Planif.
  // device_id = id numérique Traccar (ou '' pour dissocier).
  const mTrk = path.match(/^\/roster\/technician\/(.+)\/traccar-device$/)
  if (mTrk && method === 'POST') {
    const techId = decodeURIComponent(mTrk[1]); const b = await parseBody(req)
    const techName = await resolveTechName(techId)
    if (!techName) return json(res, 404, { error: 'technicien introuvable: ' + techId })
    const deviceId = (b.device_id == null || b.device_id === '') ? '' : String(b.device_id)
    const r = await retryWrite(() => erp.update('Dispatch Technician', techName, { traccar_device_id: deviceId }))
    return json(res, r.ok ? 200 : 500, { ...r, technician: techId, traccar_device_id: deviceId })
  }
  // Supprimer une assignation publiée
  const mDelA = path.match(/^\/roster\/assignment\/(.+)$/)
  if (mDelA && method === 'DELETE') {
    const name = decodeURIComponent(mDelA[1])
    const r = await retryWrite(() => erp.remove('Shift Assignment', name))
    return json(res, r.ok ? 200 : 500, r)
  }
  return json(res, 404, { error: 'roster: route inconnue ' + path })
}

module.exports = { handle, handlePublicBooking, handleFieldTech, fieldLink, techFieldLink, generate, publish, coverage, fetchTechnicians, fetchTemplates, bookingSlots }