import { Controller } from '@hotwired/stimulus'
import maplibregl from 'maplibre-gl'
import { ApiClient } from 'maps_v2/services/api_client'
import { SettingsManager } from 'maps_v2/utils/settings_manager'
import { SearchManager } from 'maps_v2/utils/search_manager'
import { Toast } from 'maps_v2/components/toast'
import { performanceMonitor } from 'maps_v2/utils/performance_monitor'
import { CleanupHelper } from 'maps_v2/utils/cleanup_helper'
import { getMapStyle } from 'maps_v2/utils/style_manager'
import { LayerManager } from './maps_v2/layer_manager'
import { DataLoader } from './maps_v2/data_loader'
import { EventHandlers } from './maps_v2/event_handlers'
import { FilterManager } from './maps_v2/filter_manager'
import { DateManager } from './maps_v2/date_manager'
import { SettingsController } from './maps_v2/settings_manager'
import { AreaSelectionManager } from './maps_v2/area_selection_manager'
import { VisitsManager } from './maps_v2/visits_manager'
import { PlacesManager } from './maps_v2/places_manager'
import { RoutesManager } from './maps_v2/routes_manager'

/**
 * Main map controller for Maps V2
 * Coordinates between different managers and handles UI interactions
 */
export default class extends Controller {
  static values = {
    apiKey: String,
    startDate: String,
    endDate: String
  }

  static targets = [
    'container',
    'loading',
    'loadingText',
    'monthSelect',
    'clusterToggle',
    'settingsPanel',
    'visitsSearch',
    'routeOpacityRange',
    'placesFilters',
    'enableAllPlaceTagsToggle',
    'fogRadiusValue',
    'fogThresholdValue',
    'metersBetweenValue',
    'minutesBetweenValue',
    // Search
    'searchInput',
    'searchResults',
    // Layer toggles
    'pointsToggle',
    'routesToggle',
    'heatmapToggle',
    'visitsToggle',
    'photosToggle',
    'areasToggle',
    'placesToggle',
    'fogToggle',
    'scratchToggle',
    // Speed-colored routes
    'routesOptions',
    'speedColoredToggle',
    'speedColorScaleContainer',
    'speedColorScaleInput',
    // Area selection
    'selectAreaButton',
    'selectionActions',
    'deleteButtonText',
    'selectedVisitsContainer',
    'selectedVisitsBulkActions'
  ]

  async connect() {
    this.cleanup = new CleanupHelper()

    // Initialize API and settings
    SettingsManager.initialize(this.apiKeyValue)
    this.settingsController = new SettingsController(this)
    await this.settingsController.loadSettings()
    this.settings = this.settingsController.settings

    // Sync toggle states with loaded settings
    this.settingsController.syncToggleStates()

    await this.initializeMap()
    this.initializeAPI()

    // Initialize managers
    this.layerManager = new LayerManager(this.map, this.settings, this.api)
    this.dataLoader = new DataLoader(this.api, this.apiKeyValue)
    this.eventHandlers = new EventHandlers(this.map)
    this.filterManager = new FilterManager(this.dataLoader)

    // Initialize feature managers
    this.areaSelectionManager = new AreaSelectionManager(this)
    this.visitsManager = new VisitsManager(this)
    this.placesManager = new PlacesManager(this)
    this.routesManager = new RoutesManager(this)

    // Initialize search manager
    this.initializeSearch()

    // Listen for visit and place creation events
    this.boundHandleVisitCreated = this.visitsManager.handleVisitCreated.bind(this.visitsManager)
    this.cleanup.addEventListener(document, 'visit:created', this.boundHandleVisitCreated)

    this.boundHandlePlaceCreated = this.placesManager.handlePlaceCreated.bind(this.placesManager)
    this.cleanup.addEventListener(document, 'place:created', this.boundHandlePlaceCreated)

    // Format initial dates
    this.startDateValue = DateManager.formatDateForAPI(new Date(this.startDateValue))
    this.endDateValue = DateManager.formatDateForAPI(new Date(this.endDateValue))
    console.log('[Maps V2] Initial dates:', this.startDateValue, 'to', this.endDateValue)

    this.loadMapData()
  }

  disconnect() {
    this.searchManager?.destroy()
    this.cleanup.cleanup()
    this.map?.remove()
    performanceMonitor.logReport()
  }

  /**
   * Initialize MapLibre map
   */
  async initializeMap() {
    const style = await getMapStyle(this.settings.mapStyle)

    this.map = new maplibregl.Map({
      container: this.containerTarget,
      style: style,
      center: [0, 0],
      zoom: 2
    })

    this.map.addControl(new maplibregl.NavigationControl(), 'top-right')
  }

  /**
   * Initialize API client
   */
  initializeAPI() {
    this.api = new ApiClient(this.apiKeyValue)
  }

  /**
   * Initialize location search
   */
  initializeSearch() {
    if (!this.hasSearchInputTarget || !this.hasSearchResultsTarget) {
      console.warn('[Maps V2] Search targets not found, search functionality disabled')
      return
    }

    this.searchManager = new SearchManager(this.map, this.apiKeyValue)
    this.searchManager.initialize(this.searchInputTarget, this.searchResultsTarget)

    console.log('[Maps V2] Search manager initialized')
  }

  /**
   * Load map data from API
   */
  async loadMapData(options = {}) {
    const {
      showLoading = true,
      fitBounds = true,
      showToast = true
    } = options

    performanceMonitor.mark('load-map-data')

    if (showLoading) {
      this.showLoading()
    }

    try {
      const data = await this.dataLoader.fetchMapData(
        this.startDateValue,
        this.endDateValue,
        showLoading ? this.updateLoadingProgress.bind(this) : null
      )

      this.filterManager.setAllVisits(data.visits)

      const addAllLayers = async () => {
        await this.layerManager.addAllLayers(
          data.pointsGeoJSON,
          data.routesGeoJSON,
          data.visitsGeoJSON,
          data.photosGeoJSON,
          data.areasGeoJSON,
          data.tracksGeoJSON,
          data.placesGeoJSON
        )

        this.layerManager.setupLayerEventHandlers({
          handlePointClick: this.eventHandlers.handlePointClick.bind(this.eventHandlers),
          handleVisitClick: this.eventHandlers.handleVisitClick.bind(this.eventHandlers),
          handlePhotoClick: this.eventHandlers.handlePhotoClick.bind(this.eventHandlers),
          handlePlaceClick: this.eventHandlers.handlePlaceClick.bind(this.eventHandlers)
        })
      }

      if (this.map.loaded()) {
        await addAllLayers()
      } else {
        this.map.once('load', async () => {
          await addAllLayers()
        })
      }

      if (fitBounds && data.points.length > 0) {
        this.fitMapToBounds(data.pointsGeoJSON)
      }

      if (showToast) {
        Toast.success(`Loaded ${data.points.length} location ${data.points.length === 1 ? 'point' : 'points'}`)
      }

    } catch (error) {
      console.error('Failed to load map data:', error)
      Toast.error('Failed to load location data. Please try again.')
    } finally {
      if (showLoading) {
        this.hideLoading()
      }
      const duration = performanceMonitor.measure('load-map-data')
      console.log(`[Performance] Map data loaded in ${duration}ms`)
    }
  }

  /**
   * Fit map to data bounds
   */
  fitMapToBounds(geojson) {
    const coordinates = geojson.features.map(f => f.geometry.coordinates)

    const bounds = coordinates.reduce((bounds, coord) => {
      return bounds.extend(coord)
    }, new maplibregl.LngLatBounds(coordinates[0], coordinates[0]))

    this.map.fitBounds(bounds, {
      padding: 50,
      maxZoom: 15
    })
  }

  /**
   * Month selector changed
   */
  monthChanged(event) {
    const { startDate, endDate } = DateManager.parseMonthSelector(event.target.value)
    this.startDateValue = startDate
    this.endDateValue = endDate

    console.log('[Maps V2] Date range changed:', this.startDateValue, 'to', this.endDateValue)
    this.loadMapData()
  }

  /**
   * Show loading indicator
   */
  showLoading() {
    this.loadingTarget.classList.remove('hidden')
  }

  /**
   * Hide loading indicator
   */
  hideLoading() {
    this.loadingTarget.classList.add('hidden')
  }

  /**
   * Update loading progress
   */
  updateLoadingProgress({ loaded, totalPages, progress }) {
    if (this.hasLoadingTextTarget) {
      const percentage = Math.round(progress * 100)
      this.loadingTextTarget.textContent = `Loading... ${percentage}%`
    }
  }

  /**
   * Toggle settings panel
   */
  toggleSettings() {
    if (this.hasSettingsPanelTarget) {
      this.settingsPanelTarget.classList.toggle('open')
    }
  }

  // ===== Delegated Methods to Managers =====

  // Settings Controller methods
  updateMapStyle(event) { return this.settingsController.updateMapStyle(event) }
  resetSettings() { return this.settingsController.resetSettings() }
  updateRouteOpacity(event) { return this.settingsController.updateRouteOpacity(event) }
  updateAdvancedSettings(event) { return this.settingsController.updateAdvancedSettings(event) }
  updateFogRadiusDisplay(event) { return this.settingsController.updateFogRadiusDisplay(event) }
  updateFogThresholdDisplay(event) { return this.settingsController.updateFogThresholdDisplay(event) }
  updateMetersBetweenDisplay(event) { return this.settingsController.updateMetersBetweenDisplay(event) }
  updateMinutesBetweenDisplay(event) { return this.settingsController.updateMinutesBetweenDisplay(event) }

  // Area Selection Manager methods
  startSelectArea() { return this.areaSelectionManager.startSelectArea() }
  cancelAreaSelection() { return this.areaSelectionManager.cancelAreaSelection() }
  deleteSelectedPoints() { return this.areaSelectionManager.deleteSelectedPoints() }

  // Visits Manager methods
  toggleVisits(event) { return this.visitsManager.toggleVisits(event) }
  searchVisits(event) { return this.visitsManager.searchVisits(event) }
  filterVisits(event) { return this.visitsManager.filterVisits(event) }
  startCreateVisit() { return this.visitsManager.startCreateVisit() }

  // Places Manager methods
  togglePlaces(event) { return this.placesManager.togglePlaces(event) }
  filterPlacesByTags(event) { return this.placesManager.filterPlacesByTags(event) }
  toggleAllPlaceTags(event) { return this.placesManager.toggleAllPlaceTags(event) }
  startCreatePlace() { return this.placesManager.startCreatePlace() }

  // Area creation
  startCreateArea() {
    console.log('[Maps V2] Starting create area mode')

    if (this.hasSettingsPanelTarget && this.settingsPanelTarget.classList.contains('open')) {
      this.toggleSettings()
    }

    const modalElement = document.querySelector('[data-controller="area-creation-v2"]')
    if (!modalElement) {
      console.error('[Maps V2] Area creation modal not found')
      Toast.error('Area creation modal not available')
      return
    }

    const controller = this.application.getControllerForElementAndIdentifier(
      modalElement,
      'area-creation-v2'
    )

    if (controller) {
      controller.open(null, null, this)
    } else {
      console.error('[Maps V2] Area creation controller not found')
      Toast.error('Area creation controller not available')
    }
  }

  // Routes Manager methods
  togglePoints(event) { return this.routesManager.togglePoints(event) }
  toggleRoutes(event) { return this.routesManager.toggleRoutes(event) }
  toggleHeatmap(event) { return this.routesManager.toggleHeatmap(event) }
  toggleFog(event) { return this.routesManager.toggleFog(event) }
  toggleScratch(event) { return this.routesManager.toggleScratch(event) }
  togglePhotos(event) { return this.routesManager.togglePhotos(event) }
  toggleAreas(event) { return this.routesManager.toggleAreas(event) }
  toggleTracks(event) { return this.routesManager.toggleTracks(event) }
  toggleSpeedColoredRoutes(event) { return this.routesManager.toggleSpeedColoredRoutes(event) }
  openSpeedColorEditor() { return this.routesManager.openSpeedColorEditor() }
  handleSpeedColorSave(event) { return this.routesManager.handleSpeedColorSave(event) }
}