NeahNew/lib/services/notifications/leantime-adapter.ts

import { Notification, NotificationCount } from '@/lib/types/notification';
import { NotificationAdapter } from './notification-adapter.interface';
import { getServerSession } from 'next-auth';
import { authOptions } from '@/app/api/auth/[...nextauth]/route';

// Leantime notification type from their API
interface LeantimeNotification {
  id: number;
  userId: number;
  username: string;
  message: string;
  type: string;
  moduleId: number;
  url: string;
  read: number; // 0 for unread, 1 for read
  date: string; // ISO format date
}

export class LeantimeAdapter implements NotificationAdapter {
  readonly sourceName = 'leantime';
  private apiUrl: string;
  private apiToken: string;

  constructor() {
    // Load from environment variables, matching the pattern used in other Leantime integrations
    this.apiUrl = process.env.LEANTIME_API_URL || '';
    this.apiToken = process.env.LEANTIME_TOKEN || '';
    
    // Log configuration on initialization
    console.log('[LEANTIME_ADAPTER] Initialized with:', {
      apiUrlConfigured: !!this.apiUrl,
      apiTokenConfigured: !!this.apiToken,
      apiUrlPrefix: this.apiUrl ? this.apiUrl.substring(0, 30) + '...' : 'not set',
    });
  }

  async getNotifications(userId: string, page = 1, limit = 20): Promise<Notification[]> {
    console.log(`[LEANTIME_ADAPTER] getNotifications called for userId: ${userId}, page: ${page}, limit: ${limit}`);
    
    try {
      // Get the user's email directly from the session
      const email = await this.getUserEmail();
      console.log(`[LEANTIME_ADAPTER] Retrieved email from session:`, email || 'null');
      
      if (!email) {
        console.error('[LEANTIME_ADAPTER] Could not get user email from session');
        return [];
      }
      
      const leantimeUserId = await this.getLeantimeUserId(email);
      console.log(`[LEANTIME_ADAPTER] Retrieved Leantime userId for email ${email}:`, leantimeUserId || 'null');
      
      if (!leantimeUserId) {
        console.error('[LEANTIME_ADAPTER] User not found in Leantime:', email);
        return [];
      }

      // Calculate offset for pagination
      const offset = (page - 1) * limit;
      
      // Make request to Leantime API using jsonrpc
      console.log('[LEANTIME_ADAPTER] Sending request to Leantime API for notifications');
      const jsonRpcBody = {
        jsonrpc: '2.0',
        method: 'leantime.rpc.notifications.getNotifications',
        params: {
          userId: leantimeUserId,
          limit: limit
        },
        id: 1
      };
      console.log('[LEANTIME_ADAPTER] Request body:', JSON.stringify(jsonRpcBody));
      
      const response = await fetch(`${this.apiUrl}/api/jsonrpc`, {
        method: 'POST',
        headers: {
          'Content-Type': 'application/json',
          'X-API-Key': this.apiToken
        },
        body: JSON.stringify(jsonRpcBody)
      });

      console.log('[LEANTIME_ADAPTER] Response status:', response.status);
      
      if (!response.ok) {
        const errorText = await response.text();
        console.error('[LEANTIME_ADAPTER] Failed to fetch Leantime notifications:', {
          status: response.status,
          body: errorText.substring(0, 200) + (errorText.length > 200 ? '...' : '')
        });
        return [];
      }

      const responseText = await response.text();
      console.log('[LEANTIME_ADAPTER] Raw response:', responseText.substring(0, 200) + (responseText.length > 200 ? '...' : ''));
      
      const data = JSON.parse(responseText);
      console.log('[LEANTIME_ADAPTER] Parsed response data:', {
        hasResult: !!data.result,
        resultIsArray: Array.isArray(data.result),
        resultLength: Array.isArray(data.result) ? data.result.length : 'n/a',
        error: data.error
      });
      
      if (!data.result || !Array.isArray(data.result)) {
        if (data.error) {
          console.error(`[LEANTIME_ADAPTER] API error: ${data.error.message || JSON.stringify(data.error)}`);
        } else {
          console.error('[LEANTIME_ADAPTER] Invalid response format from Leantime notifications API');
        }
        return [];
      }

      const notifications = this.transformNotifications(data.result, userId);
      console.log('[LEANTIME_ADAPTER] Transformed notifications count:', notifications.length);
      return notifications;
    } catch (error) {
      console.error('[LEANTIME_ADAPTER] Error fetching Leantime notifications:', error);
      return [];
    }
  }

  async getNotificationCount(userId: string): Promise<NotificationCount> {
    console.log(`[LEANTIME_ADAPTER] getNotificationCount called for userId: ${userId}`);
    
    try {
      // Get the user's email directly from the session
      const email = await this.getUserEmail();
      console.log(`[LEANTIME_ADAPTER] Retrieved email from session:`, email || 'null');
      
      if (!email) {
        console.error('[LEANTIME_ADAPTER] Could not get user email from session');
        return this.getEmptyCount();
      }
      
      const leantimeUserId = await this.getLeantimeUserId(email);
      console.log(`[LEANTIME_ADAPTER] Retrieved Leantime userId for email ${email}:`, leantimeUserId || 'null');
      
      if (!leantimeUserId) {
        console.error('[LEANTIME_ADAPTER] User not found in Leantime:', email);
        return this.getEmptyCount();
      }

      // Make request to Leantime API using jsonrpc to get all notifications
      console.log('[LEANTIME_ADAPTER] Sending request to Leantime API for notification count');
      const jsonRpcBody = {
        jsonrpc: '2.0',
        method: 'leantime.rpc.notifications.getNotifications',
        params: {
          userId: leantimeUserId
        },
        id: 1
      };
      console.log('[LEANTIME_ADAPTER] Request body:', JSON.stringify(jsonRpcBody));
      
      const response = await fetch(`${this.apiUrl}/api/jsonrpc`, {
        method: 'POST',
        headers: {
          'Content-Type': 'application/json',
          'X-API-Key': this.apiToken
        },
        body: JSON.stringify(jsonRpcBody)
      });

      console.log('[LEANTIME_ADAPTER] Response status:', response.status);
      
      if (!response.ok) {
        const errorText = await response.text();
        console.error('[LEANTIME_ADAPTER] Failed to fetch Leantime notification count:', {
          status: response.status,
          body: errorText.substring(0, 200) + (errorText.length > 200 ? '...' : '')
        });
        return this.getEmptyCount();
      }

      const responseText = await response.text();
      console.log('[LEANTIME_ADAPTER] Raw response:', responseText.substring(0, 200) + (responseText.length > 200 ? '...' : ''));
      
      const data = JSON.parse(responseText);
      console.log('[LEANTIME_ADAPTER] Parsed response data:', {
        hasResult: !!data.result,
        resultIsArray: Array.isArray(data.result),
        resultLength: Array.isArray(data.result) ? data.result.length : 'n/a',
        error: data.error
      });
      
      if (!data.result || !Array.isArray(data.result)) {
        if (data.error) {
          console.error(`[LEANTIME_ADAPTER] API error: ${data.error.message || JSON.stringify(data.error)}`);
        } else {
          console.error('[LEANTIME_ADAPTER] Invalid response format from Leantime notifications API');
        }
        return this.getEmptyCount();
      }

      // Count total and unread notifications
      const notifications = data.result;
      const totalCount = notifications.length;
      const unreadCount = notifications.filter((n: any) => n.read === 0).length;

      console.log('[LEANTIME_ADAPTER] Notification counts:', { unread: unreadCount, total: totalCount });
      
      return {
        total: totalCount,
        unread: unreadCount,
        sources: {
          leantime: {
            total: totalCount,
            unread: unreadCount
          }
        }
      };
    } catch (error) {
      console.error('[LEANTIME_ADAPTER] Error fetching Leantime notification count:', error);
      return this.getEmptyCount();
    }
  }

  async markAsRead(userId: string, notificationId: string): Promise<boolean> {
    try {
      // Extract the source ID from our compound ID
      const sourceId = notificationId.replace(`${this.sourceName}-`, '');
      
      // Make request to Leantime API using jsonrpc
      const response = await fetch(`${this.apiUrl}/api/jsonrpc`, {
        method: 'POST',
        headers: {
          'Content-Type': 'application/json',
          'X-API-Key': this.apiToken
        },
        body: JSON.stringify({
          jsonrpc: '2.0',
          method: 'leantime.rpc.notifications.markNotificationRead',
          params: {
            id: parseInt(sourceId)
          },
          id: 1
        })
      });

      if (!response.ok) {
        const errorText = await response.text();
        console.error('[LEANTIME_ADAPTER] Failed to mark Leantime notification as read:', {
          status: response.status,
          body: errorText.substring(0, 200) + (errorText.length > 200 ? '...' : '')
        });
        return false;
      }

      const data = await response.json();
      if (data.error) {
        console.error(`[LEANTIME_ADAPTER] API error: ${data.error.message || JSON.stringify(data.error)}`);
        return false;
      }
      
      return data.result === true;
    } catch (error) {
      console.error('[LEANTIME_ADAPTER] Error marking Leantime notification as read:', error);
      return false;
    }
  }

  async markAllAsRead(userId: string): Promise<boolean> {
    try {
      // Get the user's email directly from the session
      const email = await this.getUserEmail();
      if (!email) {
        console.error('[LEANTIME_ADAPTER] Could not get user email from session');
        return false;
      }
      
      const leantimeUserId = await this.getLeantimeUserId(email);
      if (!leantimeUserId) {
        console.error('[LEANTIME_ADAPTER] User not found in Leantime:', email);
        return false;
      }
      
      // Get all unread notifications
      const notifications = await this.getNotifications(userId);
      const unreadNotifications = notifications.filter(n => !n.isRead);
      
      if (unreadNotifications.length === 0) {
        // If there are no unread notifications, consider it a success
        return true;
      }
      
      // Mark each notification as read individually
      const promises = unreadNotifications.map(notification => 
        this.markAsRead(userId, notification.id)
      );
      
      const results = await Promise.all(promises);
      return results.every(result => result);
    } catch (error) {
      console.error('[LEANTIME_ADAPTER] Error marking all Leantime notifications as read:', error);
      return false;
    }
  }

  async isConfigured(): Promise<boolean> {
    return !!(this.apiUrl && this.apiToken);
  }

  private getEmptyCount(): NotificationCount {
    return {
      total: 0,
      unread: 0,
      sources: {
        leantime: {
          total: 0,
          unread: 0
        }
      }
    };
  }

  private transformNotifications(data: LeantimeNotification[], userId: string): Notification[] {
    if (!Array.isArray(data)) {
      return [];
    }

    return data.map(notification => ({
      id: `${this.sourceName}-${notification.id}`,
      source: this.sourceName as 'leantime',
      sourceId: notification.id.toString(),
      type: notification.type,
      title: notification.type, // Leantime doesn't provide a separate title
      message: notification.message,
      link: notification.url,
      isRead: notification.read === 1,
      timestamp: new Date(notification.date),
      priority: 'normal', // Default priority as Leantime doesn't specify
      user: {
        id: userId,
        name: notification.username
      },
      metadata: {
        moduleId: notification.moduleId
      }
    }));
  }

  // Helper function to get user's email directly from the session
  private async getUserEmail(): Promise<string | null> {
    console.log(`[LEANTIME_ADAPTER] Getting email from session`);
    
    try {
      const session = await getServerSession(authOptions);
      if (!session || !session.user?.email) {
        console.error('[LEANTIME_ADAPTER] No session or email found');
        return null;
      }
      
      console.log(`[LEANTIME_ADAPTER] Got email from session: ${session.user.email}`);
      return session.user.email;
    } catch (error) {
      console.error('[LEANTIME_ADAPTER] Error getting user email from session:', error);
      return null;
    }
  }

  // Helper function to get Leantime user ID by email (using similar pattern to the tasks API)
  private async getLeantimeUserId(email: string): Promise<number | null> {
    console.log(`[LEANTIME_ADAPTER] Getting Leantime userId for email: ${email}`);
    
    try {
      if (!this.apiToken) {
        console.error('[LEANTIME_ADAPTER] LEANTIME_TOKEN is not set in environment variables');
        return null;
      }

      console.log('[LEANTIME_ADAPTER] Sending request to get all Leantime users');
      const jsonRpcBody = {
        jsonrpc: '2.0',
        method: 'leantime.rpc.users.getAll',
        id: 1
      };
      console.log('[LEANTIME_ADAPTER] Request body:', JSON.stringify(jsonRpcBody));
      
      const response = await fetch(`${this.apiUrl}/api/jsonrpc`, {
        method: 'POST',
        headers: {
          'Content-Type': 'application/json',
          'X-API-Key': this.apiToken
        },
        body: JSON.stringify(jsonRpcBody),
      });

      console.log('[LEANTIME_ADAPTER] Response status:', response.status);
      
      if (!response.ok) {
        const errorText = await response.text();
        console.error('[LEANTIME_ADAPTER] Failed to fetch Leantime users:', {
          status: response.status,
          body: errorText.substring(0, 200) + (errorText.length > 200 ? '...' : '')
        });
        return null;
      }

      const responseText = await response.text();
      console.log('[LEANTIME_ADAPTER] Raw response (truncated):', responseText.substring(0, 200) + (responseText.length > 200 ? '...' : ''));
      
      const data = JSON.parse(responseText);
      console.log('[LEANTIME_ADAPTER] Parsed response data:', {
        hasResult: !!data.result,
        resultIsArray: Array.isArray(data.result),
        resultLength: Array.isArray(data.result) ? data.result.length : 'n/a',
        error: data.error
      });
      
      if (!data.result || !Array.isArray(data.result)) {
        console.error('[LEANTIME_ADAPTER] Invalid response format from Leantime users API');
        return null;
      }

      const users = data.result;
      console.log(`[LEANTIME_ADAPTER] Searching for user with email ${email} among ${users.length} users`);
      
      // Log a few user objects to check structure
      if (users.length > 0) {
        console.log('[LEANTIME_ADAPTER] Sample user object:', JSON.stringify(users[0]));
      }
      
      const user = users.find((u: any) => u.username === email);
      
      if (user) {
        console.log('[LEANTIME_ADAPTER] Found Leantime user:', { id: user.id, username: user.username });
        return user.id;
      } else {
        console.log('[LEANTIME_ADAPTER] No Leantime user found for email:', email);
        // Try alternative property names that might contain the email
        const alternativeUser = users.find((u: any) => 
          u.email === email || 
          u.mail === email || 
          (typeof u.username === 'string' && u.username.toLowerCase() === email.toLowerCase())
        );
        
        if (alternativeUser) {
          console.log('[LEANTIME_ADAPTER] Found Leantime user with alternative property match:', { 
            id: alternativeUser.id, 
            username: alternativeUser.username,
            email: alternativeUser.email || alternativeUser.mail
          });
          return alternativeUser.id;
        }
        
        return null;
      }
    } catch (error) {
      console.error('[LEANTIME_ADAPTER] Error getting Leantime user ID:', error);
      return null;
    }
  }
}