user pagination added

src/controllers/admin.controller.ts

@@ -2,7 +2,7 @@ import { Request, Response } from 'express';
 import { Holiday, HolidayType } from '@models/Holiday';
 import { holidayService } from '@services/holiday.service';
 import { sequelize } from '@config/database';
-import { QueryTypes } from 'sequelize';
+import { QueryTypes, Op } from 'sequelize';
 import logger from '@utils/logger';
 import { initializeHolidaysCache, clearWorkingHoursCache } from '@utils/tatTimeUtils';
 import { clearConfigCache } from '@services/configReader.service';
@@ -520,32 +520,49 @@ export const updateUserRole = async (req: Request, res: Response): Promise<void>
 };
 
 /**
- * Get All Users by Role
+ * Get All Users by Role (with pagination and filtering)
  * 
- * Purpose: List all users with a specific role
+ * Purpose: List all users with optional role filtering and pagination
  * 
  * Access: ADMIN only
  * 
- * Query: ?role=ADMIN | MANAGEMENT | USER
+ * Query: 
+ * - ?role=ADMIN | MANAGEMENT | USER | ALL | ELEVATED (default: ELEVATED for ADMIN+MANAGEMENT only)
+ * - ?page=1 (default)
+ * - ?limit=10 (default)
  */
 export const getUsersByRole = async (req: Request, res: Response): Promise<void> => {
   try {
-    const { role } = req.query;
+    const { role, page = '1', limit = '10' } = req.query;
+    
+    const pageNum = parseInt(page as string) || 1;
+    const limitNum = Math.min(parseInt(limit as string) || 10, 100); // Max 100 per page
+    const offset = (pageNum - 1) * limitNum;
     
     const whereClause: any = { isActive: true };
     
-    if (role) {
+    // Handle role filtering
+    if (role && role !== 'ALL' && role !== 'ELEVATED') {
       const validRoles: UserRole[] = ['USER', 'MANAGEMENT', 'ADMIN'];
       if (!validRoles.includes(role as UserRole)) {
         res.status(400).json({
           success: false,
-          error: 'Invalid role. Must be USER, MANAGEMENT, or ADMIN'
+          error: 'Invalid role. Must be USER, MANAGEMENT, ADMIN, ALL, or ELEVATED'
         });
         return;
       }
       whereClause.role = role;
+    } else if (role === 'ELEVATED' || !role) {
+      // Default: Show only ADMIN and MANAGEMENT (elevated users)
+      whereClause.role = { [Op.in]: ['ADMIN', 'MANAGEMENT'] };
     }
+    // If role === 'ALL', don't filter by role (show all users)
     
+    // Get total count for pagination
+    const totalUsers = await User.count({ where: whereClause });
+    const totalPages = Math.ceil(totalUsers / limitNum);
+    
+    // Get paginated users
     const users = await User.findAll({
       where: whereClause,
       attributes: [
@@ -565,23 +582,49 @@ export const getUsersByRole = async (req: Request, res: Response): Promise<void>
       order: [
         ['role', 'ASC'], // ADMIN first, then MANAGEMENT, then USER
         ['displayName', 'ASC']
-      ]
+      ],
+      limit: limitNum,
+      offset: offset
+    });
+    
+    // Get role summary (across all users, not just current page)
+    const roleStats = await sequelize.query(`
+      SELECT 
+        role,
+        COUNT(*) as count
+      FROM users
+      WHERE is_active = true
+      GROUP BY role
+      ORDER BY 
+        CASE role
+          WHEN 'ADMIN' THEN 1
+          WHEN 'MANAGEMENT' THEN 2
+          WHEN 'USER' THEN 3
+        END
+    `, {
+      type: QueryTypes.SELECT
     });
     
-    // Group by role for summary
     const summary = {
-      ADMIN: users.filter(u => u.role === 'ADMIN').length,
-      MANAGEMENT: users.filter(u => u.role === 'MANAGEMENT').length,
-      USER: users.filter(u => u.role === 'USER').length,
-      total: users.length
+      ADMIN: parseInt((roleStats.find((s: any) => s.role === 'ADMIN') as any)?.count || '0'),
+      MANAGEMENT: parseInt((roleStats.find((s: any) => s.role === 'MANAGEMENT') as any)?.count || '0'),
+      USER: parseInt((roleStats.find((s: any) => s.role === 'USER') as any)?.count || '0')
     };
     
     res.json({
       success: true,
       data: {
         users: users,
+        pagination: {
+          currentPage: pageNum,
+          totalPages: totalPages,
+          totalUsers: totalUsers,
+          limit: limitNum,
+          hasNextPage: pageNum < totalPages,
+          hasPrevPage: pageNum > 1
+        },
         summary,
-        filter: role || 'all'
+        filter: role || 'ELEVATED'
       }
     });
   } catch (error) {