// ── Contractor API — inscrit un sous-traitant dans ERPNext ────────────────────
import { BASE_URL } from 'src/config/erpnext'
import { getCSRF } from './auth'

function buildNotes (data) {
  const services = data.services
    .map(s => `  • ${s.label}: ${s.rate}$ / ${s.rateType === 'hourly' ? 'heure' : 'forfait'}`)
    .join('\n')

  const days = data.availability.days
    .map(d => ({ mon: 'Lun', tue: 'Mar', wed: 'Mer', thu: 'Jeu', fri: 'Ven', sat: 'Sam', sun: 'Dim' }[d]))
    .join(', ')

  return [
    `SERVICES OFFERTS:`,
    services,
    ``,
    `ZONE: ${data.availability.city} — rayon ${data.availability.radius}`,
    `DISPONIBILITÉ: ${days}`,
    data.availability.urgent ? 'Disponible pour urgences' : '',
    ``,
    data.profile.license ? `Licence/RBQ: ${data.profile.license}` : '',
    data.profile.company  ? `Entreprise: ${data.profile.company}`  : '',
  ].filter(s => s !== undefined).join('\n')
}

function localRef () {
  return 'TECH-' + Date.now().toString(36).toUpperCase().slice(-6)
}

export async function registerContractor (data) {
  const csrf = await getCSRF().catch(() => '')

  // Try ERPNext Supplier (standard ERPNext)
  try {
    const supplierName = data.profile.company
      || `${data.profile.firstname} ${data.profile.lastname}`

    const r = await fetch(`${BASE_URL}/api/resource/Supplier`, {
      method: 'POST',
      credentials: 'include',
      headers: { 'Content-Type': 'application/json', 'X-Frappe-CSRF-Token': csrf },
      body: JSON.stringify({
        supplier_name: supplierName,
        supplier_type: 'Individual',
        supplier_group: 'Services',
      }),
    })
    const body = await r.json().catch(() => ({}))
    if (r.ok && body.data?.name) {
      // Try to create a Contact linked to the supplier
      await fetch(`${BASE_URL}/api/resource/Contact`, {
        method: 'POST',
        credentials: 'include',
        headers: { 'Content-Type': 'application/json', 'X-Frappe-CSRF-Token': csrf },
        body: JSON.stringify({
          first_name: data.profile.firstname,
          last_name:  data.profile.lastname,
          email_ids:  [{ email_id: data.profile.email, is_primary: 1 }],
          phone_nos:  [{ phone: data.profile.phone, is_primary_phone: 1 }],
          links:      [{ link_doctype: 'Supplier', link_name: body.data.name }],
        }),
      }).catch(() => {})
      return body.data.name
    }
  } catch (_) { /* fall through */ }

  // Fallback: localStorage + generated ref
  const ref = localRef()
  const list = JSON.parse(localStorage.getItem('dispatch_contractors') || '[]')
  list.push({ ref, ...data, created: new Date().toISOString(), status: 'pending_review' })
  localStorage.setItem('dispatch_contractors', JSON.stringify(list))
  return ref
}