import {Controller} from "@hotwired/stimulus"
// Connects to data-controller="main-calendar"

export default class extends Controller {
  static targets = ["dateDisplay", "navigation", "teamFilter"]

  connect() {
    // Set height to full viewport
    document.getElementById('main-calendar').style.height = '100vh';
    document.getElementById('main-calendar').style.width = '100vw';
    
    // Get current locale from html lang attribute
    const currentLocale = document.documentElement.lang || 'bs';
    
    // Get translations from data attribute
    const translations = JSON.parse(document.getElementById('main-calendar').dataset.translations || '{}');
    
    // Translation helper
    const t = (key) => translations[key] || key;
    
    // Pre-process reservations to set up team calendars
    const reservations = JSON.parse(document.querySelector("#main-calendar").dataset.reservations);
    window.reservations = reservations;
    
    // Debug: Log the first reservation to inspect color format
    if (reservations && reservations.length > 0) {
      console.log("First reservation team color:", reservations[0].team.color);
    }
    
    // Extract unique teams and create calendar configurations
    const teamCalendars = [];
    const teamMap = {};
    
    // Create calendar configs for each team
    reservations.forEach(reservation => {
      const teamId = reservation.team.id;
      if (!teamMap[teamId]) {
        const calendarId = `team-${teamId}`;
        teamMap[teamId] = calendarId;
        
        // Use color directly - it should be a hex string from the TeamSerializer
        const teamColor = reservation.team.color || '#00a9ff';
        
        teamCalendars.push({
          id: calendarId,
          name: reservation.team.name,
          backgroundColor: teamColor,
          borderColor: teamColor
        });
      }
    });
    
    // Store team calendars for filtering
    this.teamCalendars = teamCalendars;
    this.allCalendars = [...teamCalendars];
    
    // Store all reservations for filtering
    this.allReservations = reservations;
    
    // Initialize calendar with all team calendars
    window.calendar = new tui.Calendar(document.getElementById('main-calendar'), {
      defaultView: 'week',
      usageStatistics: false,
      week: {
        taskView: false,
        scheduleView: false,
        eventView: ['time'],
        startDayOfWeek: 1, // Start week on Monday
        hourStart: 4,
        hourEnd: 21,
      },
      timezone: {
        zones: [
          {
            timezoneName: 'UTC',
            displayLabel: 'UTC' // Optional: Label for the timezone
          }
        ]
      },
      // This is important - set the height to 100%
      height: '100%',
      // Make sure it takes full width
      width: '100%',
      template: {
        timegridDisplayPrimaryTime({time}) {
          return `${time.getHours()} ${t('hours')}`;
        },
        popupDetailLocation(eventObj) {
          return ''; // Empty location as requested
        },
        popupDetailAttendees(eventObj) {
          return eventObj.attendees[0]; // Show team name
        },
        popupDetailState(eventObj) {
          return '';
        },
        popupDetailBody(eventObj) {
          return '';
        },
        popupEdit() {
          return t('edit');
        },
        popupDelete() {
          return t('delete');
        }
      },
      calendars: teamCalendars.length > 0 ? teamCalendars : [
        {
          id: 'default',
          name: 'Default',
          backgroundColor: '#00a9ff',
        }
      ]
    });
    
    // Create calendar events
    this.createCalendarEvents(reservations);
    
    // Set up initial date display
    this.updateDateDisplay();
    
    // Handle calendar navigation
    window.calendar.on('beforeUpdateDay', (date) => {
      this.updateDateDisplay();
    });
    
    // Handle edit and delete actions
    window.calendar.on('clickEvent', (event) => {
      const reservation = event.event.reservation;
      
      // Redirect to edit page
      window.location.href = `/reservations/${reservation.id}/edit`;
    });
    
    // Render the calendar
    window.calendar.render();
  }
  
  // Create events for all reservations
  createCalendarEvents(reservations) {
    if (!window.calendar) return;
    
    // Process each reservation into a calendar event
    reservations.forEach(reservation => {
      const teamId = reservation.team.id;
      const calendarId = `team-${teamId}`;
      
      const startTime = new Date(reservation.start_time);
      const endTime = new Date(reservation.end_time);
      
      // Create the event
      const event = {
        id: `reservation-${reservation.id}`,
        calendarId: calendarId,
        title: reservation.customer ? `${reservation.customer.first_name} ${reservation.customer.surname}` : '',
        start: startTime,
        end: endTime,
        category: 'time',
        isReadOnly: false,
        reservation: reservation,
        attendees: [reservation.team.name]
      };
      
      // Add event to calendar
      window.calendar.createEvents([event]);
    });
  }

  getCalendardata() {
    // This method is now replaced by initialization in connect()
    // and createCalendarEvents method
  }
  
  // Helper function to get CSRF token from meta tag
  getCsrfToken() {
    const token = document.querySelector('meta[name="csrf-token"]')?.content;
    return token;
  }

  // Navigation methods - using the global window.calendar
  prev() {
    window.calendar.prev();
    this.updateDateDisplay();
  }
  
  next() {
    window.calendar.next();
    this.updateDateDisplay();
  }
  
  today() {
    window.calendar.today();
    this.updateDateDisplay();
  }
  
  // Helper for updating the date display
  updateDateDisplay() {
    if (this.hasDateDisplayTarget) {
      const calendar = window.calendar;
      const currentDate = calendar.getDate();
      
      // Format the date range based on the current view
      const view = calendar.getViewName();
      
      if (view === 'day') {
        this.dateDisplayTarget.textContent = this.formatDate(currentDate);
      } else if (view === 'week') {
        // For week view, show range (e.g., "Aug 1 - 7, 2023")
        const weekStart = new Date(currentDate);
        weekStart.setDate(weekStart.getDate() - weekStart.getDay() + (weekStart.getDay() === 0 ? -6 : 1));
        
        const weekEnd = new Date(weekStart);
        weekEnd.setDate(weekStart.getDate() + 6);
        
        this.dateDisplayTarget.textContent = `${this.formatDateShort(weekStart)} - ${this.formatDateShort(weekEnd)}`;
      } else if (view === 'month') {
        // For month view, show month and year (e.g., "August 2023")
        this.dateDisplayTarget.textContent = currentDate.toLocaleString('default', { month: 'long', year: 'numeric' });
      }
    }
  }
  
  // Helper for formatting dates
  formatDate(date) {
    return date.toLocaleDateString('default', { 
      weekday: 'short', 
      month: 'short', 
      day: 'numeric', 
      year: 'numeric' 
    });
  }
  
  formatDateShort(date) {
    return date.toLocaleDateString('default', { 
      month: 'short', 
      day: 'numeric'
    });
  }
  
  // Method for team filtering
  filterByTeam(event) {
    const selectedTeamId = event.target.value;
    
    // Store last value for test verification
    window.lastTeamFilterValue = selectedTeamId;
    
    console.log(`Filtering by team: ${selectedTeamId}`);
    
    if (!window.calendar) return;
    
    // Clear existing events
    window.calendar.clear();
    
    // Process reservations based on filter
    let filteredReservations = this.allReservations;
    
    // If not "all", filter by team
    if (selectedTeamId !== 'all') {
      // Extract numeric ID if the value is in "team-{id}" format
      const teamId = selectedTeamId.toString().startsWith('team-') 
        ? selectedTeamId.toString().replace('team-', '') 
        : selectedTeamId.toString();
      
      console.log(`Using team ID for filtering: ${teamId}`);
        
      filteredReservations = this.allReservations.filter(reservation => 
        reservation.team.id.toString() === teamId
      );
      
      console.log(`Found ${filteredReservations.length} reservations for team ${teamId}`);
    }
    
    // Create and add calendar events based on filtered reservations
    this.createCalendarEvents(filteredReservations);
    
    // Update calendar display
    window.calendar.render();
  }
}