/**
 * DailyNotification Web Implementation
 * 
 * Web platform implementation with proper mock functionality
 * Aligned with updated interface definitions
 * 
 * @author Matthew Raymer
 * @version 2.0.0
 */

import { DailyNotificationPlugin, NotificationOptions, NotificationResponse, NotificationStatus, NotificationSettings, BatteryStatus, PowerState, PermissionStatus } from '../definitions';

export class DailyNotificationWeb implements DailyNotificationPlugin {
  private notifications: Map<string, NotificationResponse> = new Map();
  private settings: NotificationSettings = {
    sound: true,
    priority: 'default',
    timezone: 'UTC'
  };
  private scheduledNotifications: Set<string> = new Set();

  async configure(_options: any): Promise<void> {
    // Web implementation placeholder
    console.log('Configure called on web platform');
  }
  
  async maintainRollingWindow(): Promise<void> {
    console.log('Maintain rolling window called on web platform');
  }
  
  async getRollingWindowStats(): Promise<{
    stats: string;
    maintenanceNeeded: boolean;
    timeUntilNextMaintenance: number;
  }> {
    console.log('Get rolling window stats called on web platform');
    return {
      stats: 'Web platform - rolling window not applicable',
      maintenanceNeeded: false,
      timeUntilNextMaintenance: 0
    };
  }
  
  async getExactAlarmStatus(): Promise<{
    supported: boolean;
    enabled: boolean;
    canSchedule: boolean;
    fallbackWindow: string;
  }> {
    console.log('Get exact alarm status called on web platform');
    return {
      supported: false,
      enabled: false,
      canSchedule: false,
      fallbackWindow: 'Not applicable on web'
    };
  }
  
  async requestExactAlarmPermission(): Promise<void> {
    console.log('Request exact alarm permission called on web platform');
  }
  
  async openExactAlarmSettings(): Promise<void> {
    console.log('Open exact alarm settings called on web platform');
  }
  
  async getRebootRecoveryStatus(): Promise<{
    inProgress: boolean;
    lastRecoveryTime: number;
    timeSinceLastRecovery: number;
    recoveryNeeded: boolean;
  }> {
    console.log('Get reboot recovery status called on web platform');
    return {
      inProgress: false,
      lastRecoveryTime: 0,
      timeSinceLastRecovery: 0,
      recoveryNeeded: false
    };
  }

  /**
   * Schedule a daily notification
   */
  async scheduleDailyNotification(options: NotificationOptions): Promise<void> {
    // Validate required parameters
    if (!options.time) {
      throw new Error('Time parameter is required');
    }

    // Create notification content
    const notification: NotificationResponse = {
      id: this.generateId(),
      title: options.title || 'Daily Update',
      body: options.body || 'Your daily notification is ready',
      timestamp: Date.now(),
      url: options.url
    };

    // Store notification
    this.notifications.set(notification.id, notification);
    this.scheduledNotifications.add(notification.id);

    // Schedule the notification using browser APIs if available
    if ('Notification' in window && 'serviceWorker' in navigator) {
      await this.scheduleBrowserNotification(notification, options);
    }

    console.log('Web notification scheduled:', notification);
  }

  /**
   * Get the last notification
   */
  async getLastNotification(): Promise<NotificationResponse | null> {
    const notifications = Array.from(this.notifications.values());
    if (notifications.length === 0) {
      return null;
    }
    
    // Return the most recent notification
    return notifications.sort((a, b) => b.timestamp - a.timestamp)[0];
  }

  /**
   * Cancel all notifications
   */
  async cancelAllNotifications(): Promise<void> {
    this.scheduledNotifications.clear();
    this.notifications.clear();
    
    // Cancel browser notifications if available
    if ('Notification' in window) {
      Notification.requestPermission().then(permission => {
        if (permission === 'granted') {
          // Clear any existing browser notifications
          console.log('Browser notifications cleared');
        }
      });
    }
  }

  /**
   * Get notification status
   */
  async getNotificationStatus(): Promise<NotificationStatus> {
    return {
      isEnabled: 'Notification' in window,
      isScheduled: this.scheduledNotifications.size > 0,
      lastNotificationTime: this.getLastNotificationTime(),
      nextNotificationTime: this.getNextNotificationTime(),
      pending: this.scheduledNotifications.size,
      settings: this.settings,
      error: undefined
    };
  }

  /**
   * Update notification settings
   */
  async updateSettings(settings: NotificationSettings): Promise<void> {
    this.settings = { ...this.settings, ...settings };
    console.log('Settings updated:', this.settings);
  }

  /**
   * Get battery status (mock implementation for web)
   */
  async getBatteryStatus(): Promise<BatteryStatus> {
    // Mock implementation for web
    return {
      level: 100,
      isCharging: false,
      powerState: 0,
      isOptimizationExempt: false
    };
  }

  /**
   * Request battery optimization exemption (mock for web)
   */
  async requestBatteryOptimizationExemption(): Promise<void> {
    console.log('Battery optimization exemption requested (web mock)');
  }

  /**
   * Set adaptive scheduling (mock for web)
   */
  async setAdaptiveScheduling(options: { enabled: boolean }): Promise<void> {
    console.log('Adaptive scheduling set:', options.enabled);
  }

  /**
   * Get power state (mock for web)
   */
  async getPowerState(): Promise<PowerState> {
    return {
      powerState: 0,
      isOptimizationExempt: false
    };
  }

  /**
   * Check permissions (web implementation)
   */
  async checkPermissions(): Promise<PermissionStatus> {
    if (!('Notification' in window)) {
      return {
        notifications: 'denied',
        alert: false,
        badge: false,
        sound: false,
        lockScreen: false,
        carPlay: false
      };
    }

    const permission = Notification.permission;
    return {
      status: permission,
      granted: permission === 'granted',
      notifications: permission === 'granted' ? 'granted' : 
                    permission === 'denied' ? 'denied' : 'prompt',
      alert: permission === 'granted',
      badge: permission === 'granted',
      sound: permission === 'granted',
      lockScreen: permission === 'granted',
      carPlay: false
    };
  }

  /**
   * Request permissions (web implementation)
   */
  async requestPermissions(): Promise<PermissionStatus> {
    if (!('Notification' in window)) {
      throw new Error('Notifications not supported in this browser');
    }

    await Notification.requestPermission();
    return this.checkPermissions();
  }

  // Dual Scheduling Methods Implementation

  /**
   * Schedule content fetch (web implementation)
   */
  async scheduleContentFetch(config: any): Promise<void> {
    console.log('Content fetch scheduled (web mock):', config);
    // Mock implementation - in real app would use Service Worker
  }

  /**
   * Schedule user notification (web implementation)
   */
  async scheduleUserNotification(config: any): Promise<void> {
    console.log('User notification scheduled (web mock):', config);
    // Mock implementation - in real app would use browser notifications
  }

  /**
   * Schedule dual notification (web implementation)
   */
  async scheduleDualNotification(config: any): Promise<void> {
    console.log('Dual notification scheduled (web mock):', config);
    // Mock implementation combining content fetch and user notification
  }

  /**
   * Get dual schedule status (web implementation)
   */
  async getDualScheduleStatus(): Promise<any> {
    return {
      contentFetch: {
        isEnabled: false,
        isScheduled: false,
        pendingFetches: 0
      },
      userNotification: {
        isEnabled: false,
        isScheduled: false,
        pendingNotifications: 0
      },
      relationship: {
        isLinked: false,
        contentAvailable: false
      },
      overall: {
        isActive: false,
        lastActivity: Date.now(),
        errorCount: 0,
        successRate: 1.0
      }
    };
  }

  /**
   * Update dual schedule configuration (web implementation)
   */
  async updateDualScheduleConfig(config: any): Promise<void> {
    console.log('Dual schedule config updated (web mock):', config);
  }

  /**
   * Cancel dual schedule (web implementation)
   */
  async cancelDualSchedule(): Promise<void> {
    console.log('Dual schedule cancelled (web mock)');
  }

  /**
   * Pause dual schedule (web implementation)
   */
  async pauseDualSchedule(): Promise<void> {
    console.log('Dual schedule paused (web mock)');
  }

  /**
   * Resume dual schedule (web implementation)
   */
  async resumeDualSchedule(): Promise<void> {
    console.log('Dual schedule resumed (web mock)');
  }

  /**
   * Get content cache (web implementation)
   */
  async getContentCache(): Promise<Record<string, any>> {
    return {}; // Mock empty cache
  }

  /**
   * Clear content cache (web implementation)
   */
  async clearContentCache(): Promise<void> {
    console.log('Content cache cleared (web mock)');
  }

  /**
   * Get content history (web implementation)
   */
  async getContentHistory(): Promise<any[]> {
    return []; // Mock empty history
  }

  /**
   * Register callback (web implementation)
   */
  async registerCallback(name: string, _callback: Function): Promise<void> {
    console.log('Callback registered (web mock):', name);
  }

  /**
   * Unregister callback (web implementation)
   */
  async unregisterCallback(name: string): Promise<void> {
    console.log('Callback unregistered (web mock):', name);
  }

  /**
   * Get registered callbacks (web implementation)
   */
  async getRegisteredCallbacks(): Promise<string[]> {
    return []; // Mock empty callback list
  }

  /**
   * Schedule browser notification using native APIs
   */
  private async scheduleBrowserNotification(notification: NotificationResponse, options: NotificationOptions): Promise<void> {
    if (!('Notification' in window)) {
      return;
    }

    const permission = await Notification.requestPermission();
    if (permission !== 'granted') {
      console.warn('Notification permission not granted');
      return;
    }

    // Calculate next notification time
    const nextTime = this.calculateNextNotificationTime(options.time!);
    const delay = nextTime.getTime() - Date.now();

    if (delay > 0) {
      setTimeout(() => {
        this.showBrowserNotification(notification, options);
      }, delay);
    } else {
      // Show immediately if time has passed
      this.showBrowserNotification(notification, options);
    }
  }

  /**
   * Show browser notification
   */
  private showBrowserNotification(notification: NotificationResponse, options: NotificationOptions): void {
    if (!('Notification' in window)) {
      return;
    }

    const browserNotification = new Notification(notification.title, {
      body: notification.body,
      icon: '/favicon.ico',
      tag: notification.id,
      requireInteraction: false,
      silent: !options.sound
    });

    // Handle notification click
    browserNotification.onclick = () => {
      if (notification.url) {
        window.open(notification.url, '_blank');
      }
      browserNotification.close();
    };

    // Auto-close after 10 seconds
    setTimeout(() => {
      browserNotification.close();
    }, 10000);
  }

  /**
   * Calculate next notification time
   */
  private calculateNextNotificationTime(timeString: string): Date {
    const [hours, minutes] = timeString.split(':').map(Number);
    const now = new Date();
    const next = new Date(now);
    
    next.setHours(hours, minutes, 0, 0);
    
    // If time has passed today, schedule for tomorrow
    if (next <= now) {
      next.setDate(next.getDate() + 1);
    }
    
    return next;
  }

  /**
   * Generate unique ID
   */
  private generateId(): string {
    return `web-${Date.now()}-${Math.random().toString(36).substr(2, 9)}`;
  }

  /**
   * Get last notification time
   */
  private async getLastNotificationTime(): Promise<number> {
    const last = await this.getLastNotification();
    return last ? last.timestamp : 0;
  }

  /**
   * Get next notification time
   */
  private getNextNotificationTime(): number {
    // For web, return 24 hours from now as placeholder
    return Date.now() + (24 * 60 * 60 * 1000);
  }
}