import { ref } from 'vue'
import { updateTech } from 'src/api/dispatch'

export function useTechManagement (store, invalidateRoutes) {
  const editingTech = ref(null)
  const newTechName = ref('')
  const newTechPhone = ref('')
  const newTechDevice = ref('')
  const addingTech = ref(false)

  async function saveTechField (tech, field, value) {
    const trimmed = typeof value === 'string' ? value.trim() : value
    if (field === 'full_name') {
      if (!trimmed || trimmed === tech.fullName) return
      tech.fullName = trimmed
    } else if (field === 'status') {
      tech.status = trimmed
    } else if (field === 'phone') {
      if (trimmed === tech.phone) return
      tech.phone = trimmed
    }
    try { await updateTech(tech.name || tech.id, { [field]: trimmed }) }
    catch (_e) { /* save failed */ }
  }

  async function addTech () {
    const name = newTechName.value.trim()
    if (!name || addingTech.value) return
    addingTech.value = true
    try {
      const tech = await store.createTechnician({
        full_name: name,
        phone: newTechPhone.value.trim() || '',
        traccar_device_id: newTechDevice.value || '',
      })
      newTechName.value = ''
      newTechPhone.value = ''
      newTechDevice.value = ''
      if (tech.traccarDeviceId) await store.pollGps()
    } catch (e) {
      const msg = e?.message || String(e)
      alert('Erreur création technicien:\n' + msg.replace(/<[^>]+>/g, ''))
    }
    finally { addingTech.value = false }
  }

  async function removeTech (tech) {
    if (!confirm(`Supprimer ${tech.fullName} ?`)) return
    try {
      const linkedJobs = store.jobs.filter(j => j.assignedTech === tech.id)
      for (const job of linkedJobs) {
        await store.unassignJob(job.id)
      }
      await store.deleteTechnician(tech.id)
    } catch (e) {
      const msg = e?.message || String(e)
      alert('Erreur suppression:\n' + msg.replace(/<[^>]+>/g, ''))
    }
  }

  async function saveTraccarLink (tech, deviceId) {
    tech.traccarDeviceId = deviceId || null
    tech.gpsCoords = null
    tech.gpsOnline = false
    await updateTech(tech.name || tech.id, { traccar_device_id: deviceId || '' })
    await store.pollGps()
    invalidateRoutes()
  }

  return {
    editingTech, newTechName, newTechPhone, newTechDevice, addingTech,
    saveTechField, addTech, removeTech, saveTraccarLink,
  }
}