import { Controller } from '@hotwired/stimulus'
import { Toast } from 'maps_maplibre/components/toast'

/**
 * Controller for visit creation modal in Maps V2
 */
export default class extends Controller {
  static targets = [
    'modal',
    'form',
    'modalTitle',
    'nameInput',
    'startTimeInput',
    'endTimeInput',
    'latitudeInput',
    'longitudeInput',
    'submitButton'
  ]

  static values = {
    apiKey: String
  }

  connect() {
    console.log('[Visit Creation V2] Controller connected')
    this.marker = null
    this.mapController = null
    this.editingVisitId = null
    this.setupEventListeners()
  }

  setupEventListeners() {
    document.addEventListener('visit:edit', (e) => {
      this.openForEdit(e.detail.visit)
    })
  }

  disconnect() {
    this.cleanup()
  }

  /**
   * Open the modal with coordinates
   */
  open(lat, lng, mapController) {
    console.log('[Visit Creation V2] Opening modal', { lat, lng })

    this.editingVisitId = null
    this.mapController = mapController
    this.latitudeInputTarget.value = lat
    this.longitudeInputTarget.value = lng

    // Set modal title and button for creation
    if (this.hasModalTitleTarget) {
      this.modalTitleTarget.textContent = 'Create New Visit'
    }
    if (this.hasSubmitButtonTarget) {
      this.submitButtonTarget.textContent = 'Create Visit'
    }

    // Set default times
    const now = new Date()
    const oneHourLater = new Date(now.getTime() + (60 * 60 * 1000))

    this.startTimeInputTarget.value = this.formatDateTime(now)
    this.endTimeInputTarget.value = this.formatDateTime(oneHourLater)

    // Show modal
    this.modalTarget.classList.add('modal-open')

    // Focus on name input
    setTimeout(() => this.nameInputTarget.focus(), 100)

    // Add marker to map
    this.addMarker(lat, lng)
  }

  /**
   * Open the modal for editing an existing visit
   */
  openForEdit(visit) {
    console.log('[Visit Creation V2] Opening modal for edit', visit)

    this.editingVisitId = visit.id

    // Set modal title and button for editing
    if (this.hasModalTitleTarget) {
      this.modalTitleTarget.textContent = 'Edit Visit'
    }
    if (this.hasSubmitButtonTarget) {
      this.submitButtonTarget.textContent = 'Update Visit'
    }

    // Fill form with visit data
    this.nameInputTarget.value = visit.name || ''
    this.latitudeInputTarget.value = visit.latitude
    this.longitudeInputTarget.value = visit.longitude

    // Convert timestamps to datetime-local format
    this.startTimeInputTarget.value = this.formatDateTime(new Date(visit.started_at))
    this.endTimeInputTarget.value = this.formatDateTime(new Date(visit.ended_at))

    // Show modal
    this.modalTarget.classList.add('modal-open')

    // Focus on name input
    setTimeout(() => this.nameInputTarget.focus(), 100)

    // Try to get map controller from the maps--maplibre controller
    const mapElement = document.querySelector('[data-controller*="maps--maplibre"]')
    if (mapElement) {
      const app = window.Stimulus || window.Application
      this.mapController = app?.getControllerForElementAndIdentifier(mapElement, 'maps--maplibre')
    }

    // Add marker to map
    this.addMarker(visit.latitude, visit.longitude)
  }

  /**
   * Close the modal
   */
  close() {
    console.log('[Visit Creation V2] Closing modal')

    // Hide modal
    this.modalTarget.classList.remove('modal-open')

    // Reset form
    this.formTarget.reset()

    // Reset editing state
    this.editingVisitId = null

    // Remove marker
    this.removeMarker()
  }

  /**
   * Handle form submission
   */
  async submit(event) {
    event.preventDefault()

    const isEdit = this.editingVisitId !== null
    console.log(`[Visit Creation V2] Submitting form (${isEdit ? 'edit' : 'create'})`)

    const formData = new FormData(this.formTarget)

    const visitData = {
      visit: {
        name: formData.get('name'),
        started_at: formData.get('started_at'),
        ended_at: formData.get('ended_at'),
        latitude: parseFloat(formData.get('latitude')),
        longitude: parseFloat(formData.get('longitude')),
        status: 'confirmed'
      }
    }

    try {
      const url = isEdit ? `/api/v1/visits/${this.editingVisitId}` : '/api/v1/visits'
      const method = isEdit ? 'PATCH' : 'POST'

      const response = await fetch(url, {
        method: method,
        headers: {
          'Content-Type': 'application/json',
          'Authorization': `Bearer ${this.apiKeyValue}`,
          'X-CSRF-Token': document.querySelector('meta[name="csrf-token"]')?.content || ''
        },
        body: JSON.stringify(visitData)
      })

      if (!response.ok) {
        const errorData = await response.json()
        throw new Error(errorData.error || `Failed to ${isEdit ? 'update' : 'create'} visit`)
      }

      const visit = await response.json()

      console.log(`[Visit Creation V2] Visit ${isEdit ? 'updated' : 'created'} successfully`, visit)

      // Show success message
      this.showToast(`Visit ${isEdit ? 'updated' : 'created'} successfully`, 'success')

      // Close modal
      this.close()

      // Dispatch event to notify map controller
      const eventName = isEdit ? 'visit:updated' : 'visit:created'
      document.dispatchEvent(new CustomEvent(eventName, {
        detail: { visit }
      }))
    } catch (error) {
      console.error(`[Visit Creation V2] Error ${isEdit ? 'updating' : 'creating'} visit:`, error)
      this.showToast(error.message || `Failed to ${isEdit ? 'update' : 'create'} visit`, 'error')
    }
  }

  /**
   * Add marker to map
   */
  addMarker(lat, lng) {
    if (!this.mapController) return

    // Remove existing marker if any
    this.removeMarker()

    // Create marker element
    const el = document.createElement('div')
    el.className = 'visit-creation-marker'
    el.innerHTML = '📍'
    el.style.fontSize = '30px'

    // Use maplibregl if available (from mapController)
    const maplibregl = window.maplibregl
    if (maplibregl) {
      this.marker = new maplibregl.Marker({ element: el })
        .setLngLat([lng, lat])
        .addTo(this.mapController.map)
    }
  }

  /**
   * Remove marker from map
   */
  removeMarker() {
    if (this.marker) {
      this.marker.remove()
      this.marker = null
    }
  }

  /**
   * Clean up resources
   */
  cleanup() {
    this.removeMarker()
  }

  /**
   * Format date for datetime-local input
   */
  formatDateTime(date) {
    return date.toISOString().slice(0, 16)
  }

  /**
   * Show toast notification
   */
  showToast(message, type = 'info') {
    Toast[type](message)
  }
}