import { useEffect, useState, useCallback, useRef } from 'react';
import { useSearchParams } from 'react-router-dom';
import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui/card';
import { Badge } from '@/components/ui/badge';
import { Button } from '@/components/ui/button';
import { Input } from '@/components/ui/input';
import { Progress } from '@/components/ui/progress';
import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from '@/components/ui/select';
import { Avatar, AvatarFallback } from '@/components/ui/avatar';
import { Calendar, Clock, Filter, Search, FileText, AlertCircle, ArrowRight, SortAsc, SortDesc, Flame, Target, RefreshCw, X, CheckCircle, XCircle } from 'lucide-react';
import workflowApi from '@/services/workflowApi';
import { formatDateDDMMYYYY } from '@/utils/dateFormatter';
interface Request {
  id: string;
  title: string;
  description: string;
  status: 'pending' | 'approved' | 'rejected' | 'closed';
  priority: 'express' | 'standard';
  initiator: { name: string; avatar: string };
  currentApprover?: { 
    name: string; 
    avatar: string; 
    sla?: any; // Backend-calculated SLA data
  };
  createdAt: string;
  approvalStep?: string;
  department?: string;
  currentLevelSLA?: any; // Backend-provided SLA for current level
}

interface OpenRequestsProps {
  onViewRequest?: (requestId: string, requestTitle?: string) => void;
}

// Utility functions
const getPriorityConfig = (priority: string) => {
  switch (priority) {
    case 'express':
      return {
        color: 'bg-red-100 text-red-800 border-red-200',
        icon: Flame,
        iconColor: 'text-red-600'
      };
    case 'standard':
      return {
        color: 'bg-blue-100 text-blue-800 border-blue-200',
        icon: Target,
        iconColor: 'text-blue-600'
      };
    default:
      return {
        color: 'bg-gray-100 text-gray-800 border-gray-200',
        icon: Target,
        iconColor: 'text-gray-600'
      };
  }
};

const getStatusConfig = (status: string) => {
  switch (status) {
    case 'pending':
      return {
        color: 'bg-yellow-100 text-yellow-800 border-yellow-200',
        icon: Clock,
        iconColor: 'text-yellow-600',
        label: 'Pending'
      };
    case 'approved':
      return {
        color: 'bg-green-100 text-green-800 border-green-200',
        icon: AlertCircle,
        iconColor: 'text-green-600',
        label: 'Needs Closure'
      };
    case 'rejected':
      return {
        color: 'bg-red-100 text-red-800 border-red-200',
        icon: XCircle,
        iconColor: 'text-red-600',
        label: 'Rejected'
      };
    case 'closed':
      return {
        color: 'bg-gray-100 text-gray-800 border-gray-200',
        icon: CheckCircle,
        iconColor: 'text-gray-600',
        label: 'Closed'
      };
    default:
      return {
        color: 'bg-gray-100 text-gray-800 border-gray-200',
        icon: AlertCircle,
        iconColor: 'text-gray-600',
        label: status
      };
  }
};

// getSLAUrgency removed - now using SLATracker component for real-time SLA display

export function OpenRequests({ onViewRequest }: OpenRequestsProps) {
  const [searchParams] = useSearchParams();
  
  // Initialize filters from URL params
  const [searchTerm, setSearchTerm] = useState(searchParams.get('search') || '');
  const [priorityFilter, setPriorityFilter] = useState(searchParams.get('priority') || 'all');
  const [statusFilter, setStatusFilter] = useState(searchParams.get('status') || 'all');
  const [sortBy, setSortBy] = useState<'created' | 'due' | 'priority' | 'sla'>(
    (searchParams.get('sortBy') as 'created' | 'due' | 'priority' | 'sla') || 'created'
  );
  const [sortOrder, setSortOrder] = useState<'asc' | 'desc'>(
    (searchParams.get('sortOrder') as 'asc' | 'desc') || 'desc'
  );
  const [items, setItems] = useState<Request[]>([]);
  const [loading, setLoading] = useState(false);
  const [refreshing, setRefreshing] = useState(false);
  
  // Pagination states
  const [currentPage, setCurrentPage] = useState(1);
  const [totalPages, setTotalPages] = useState(1);
  const [totalRecords, setTotalRecords] = useState(0);
  const [itemsPerPage] = useState(10);

  // Fetch open requests for the current user only (user-scoped, not organization-wide)
  // Note: This endpoint returns only requests where the user is:
  // - An approver (with pending/in-progress status)
  // - A spectator
  // - An initiator (for approved requests awaiting closure)
  // This applies to ALL users including regular users, MANAGEMENT, and ADMIN roles
  // For organization-wide view, users should use the "All Requests" screen (/requests)
  const fetchRequests = useCallback(async (page: number = 1, filters?: { search?: string; status?: string; priority?: string; sortBy?: string; sortOrder?: string }) => {
    try {
      if (page === 1) {
        setLoading(true);
        setItems([]);
      }
      
      // Always use user-scoped endpoint (not organization-wide)
      // Backend filters by userId regardless of user role (ADMIN/MANAGEMENT/regular user)
      // For organization-wide requests, use the "All Requests" screen (/requests)
      const result = await workflowApi.listOpenForMe({ 
        page, 
        limit: itemsPerPage,
        search: filters?.search,
        status: filters?.status,
        priority: filters?.priority,
        sortBy: filters?.sortBy,
        sortOrder: filters?.sortOrder
      });
      
      // Extract data - workflowApi now returns { data: [], pagination: {} }
      const data = Array.isArray((result as any)?.data) 
        ? (result as any).data 
        : [];
      
      // Set pagination data
      const pagination = (result as any)?.pagination;
      if (pagination) {
        setCurrentPage(pagination.page || 1);
        setTotalPages(pagination.totalPages || 1);
        setTotalRecords(pagination.total || 0);
      }
      
      const mapped: Request[] = data.map((r: any) => {
        const createdAt = r.submittedAt || r.submitted_at || r.createdAt || r.created_at;
        
        return {
          id: r.requestNumber || r.request_number || r.requestId,
          requestId: r.requestId,
          displayId: r.requestNumber || r.request_number || r.requestId,
          title: r.title,
          description: r.description,
          status: (r.status || '').toString().toLowerCase().replace('_', '-'),
          priority: (r.priority || '').toString().toLowerCase(),
          initiator: { 
            name: (r.initiator?.displayName || r.initiator?.email || '—'), 
            avatar: ((r.initiator?.displayName || r.initiator?.email || 'NA').split(' ').map((s: string) => s[0]).join('').slice(0,2).toUpperCase()) 
          },
          currentApprover: r.currentApprover ? { 
            name: (r.currentApprover.name || r.currentApprover.email || '—'), 
            avatar: ((r.currentApprover.name || r.currentApprover.email || 'CA').split(' ').map((s: string) => s[0]).join('').slice(0,2).toUpperCase()),
            sla: r.currentApprover.sla // ← Backend-calculated SLA
          } : undefined,
          createdAt: createdAt || '—',
          approvalStep: r.currentLevel ? `Step ${r.currentLevel} of ${r.totalLevels || '?'}` : undefined,
          department: r.department,
          currentLevelSLA: r.currentLevelSLA, // ← Backend-calculated current level SLA
        };
      });
      setItems(mapped);
    } finally {
      setLoading(false);
      setRefreshing(false);
    }
  }, [itemsPerPage]);

  const handleRefresh = () => {
    setRefreshing(true);
    fetchRequests(currentPage, { 
      search: searchTerm || undefined, 
      status: statusFilter !== 'all' ? statusFilter : undefined, 
      priority: priorityFilter !== 'all' ? priorityFilter : undefined,
      sortBy,
      sortOrder
    });
  };

  const handlePageChange = (newPage: number) => {
    if (newPage >= 1 && newPage <= totalPages) {
      setCurrentPage(newPage);
      fetchRequests(newPage, { 
        search: searchTerm || undefined, 
        status: statusFilter !== 'all' ? statusFilter : undefined, 
        priority: priorityFilter !== 'all' ? priorityFilter : undefined,
        sortBy,
        sortOrder
      });
    }
  };

  const getPageNumbers = () => {
    const pages = [];
    const maxPagesToShow = 5;
    let startPage = Math.max(1, currentPage - Math.floor(maxPagesToShow / 2));
    let endPage = Math.min(totalPages, startPage + maxPagesToShow - 1);
    
    if (endPage - startPage < maxPagesToShow - 1) {
      startPage = Math.max(1, endPage - maxPagesToShow + 1);
    }
    
    for (let i = startPage; i <= endPage; i++) {
      pages.push(i);
    }
    
    return pages;
  };

  // Track if this is the initial mount
  const isInitialMount = useRef(true);
  
  // Initial fetch on mount with URL params
  useEffect(() => {
    if (isInitialMount.current) {
      isInitialMount.current = false;
      fetchRequests(1, { 
        search: searchTerm || undefined, 
        status: statusFilter !== 'all' ? statusFilter : undefined, 
        priority: priorityFilter !== 'all' ? priorityFilter : undefined,
        sortBy,
        sortOrder
      });
    }
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, []); // Only run on mount to use URL params
  
  // Fetch when filters or sorting change (with debouncing for search)
  useEffect(() => {
    // Skip initial mount to avoid double fetch
    if (isInitialMount.current) return;
    
    // Debounce search: wait 500ms after user stops typing
    const timeoutId = setTimeout(() => {
      setCurrentPage(1); // Reset to page 1 when filters change
      fetchRequests(1, { 
        search: searchTerm || undefined, 
        status: statusFilter !== 'all' ? statusFilter : undefined, 
        priority: priorityFilter !== 'all' ? priorityFilter : undefined,
        sortBy,
        sortOrder
      });
    }, searchTerm ? 500 : 0); // Debounce only for search, instant for dropdowns

    return () => clearTimeout(timeoutId);
  }, [searchTerm, statusFilter, priorityFilter, sortBy, sortOrder, fetchRequests]);

  // Backend handles both filtering and sorting - use items directly
  // No client-side sorting needed anymore
  const filteredAndSortedRequests = items;

  const clearFilters = () => {
    setSearchTerm('');
    setPriorityFilter('all');
    setStatusFilter('all');
  };

  const activeFiltersCount = [
    searchTerm,
    priorityFilter !== 'all' ? priorityFilter : null,
    statusFilter !== 'all' ? statusFilter : null
  ].filter(Boolean).length;

    return (
    <div className="space-y-4 sm:space-y-6 max-w-7xl mx-auto">
      {/* Enhanced Header */}
      <div className="flex flex-col lg:flex-row lg:items-center justify-between gap-3 sm:gap-4 md:gap-6">
        <div className="space-y-1 sm:space-y-2">
          <div className="flex items-center gap-2 sm:gap-3">
            <div className="w-10 h-10 sm:w-12 sm:h-12 bg-gradient-to-br from-slate-800 to-slate-900 rounded-xl flex items-center justify-center shadow-lg">
              <FileText className="w-5 h-5 sm:w-6 sm:h-6 text-white" />
            </div>
            <div>
              <h1 className="text-xl sm:text-2xl md:text-3xl font-bold text-gray-900">My Open Requests</h1>
              <p className="text-sm sm:text-base text-gray-600">Manage and track your active approval requests</p>
            </div>
          </div>
        </div>
        
        <div className="flex items-center gap-2 sm:gap-3">
          <Badge variant="secondary" className="text-xs sm:text-sm md:text-base px-2 sm:px-3 md:px-4 py-1 sm:py-1.5 md:py-2 bg-slate-100 text-slate-800 font-semibold">
            {loading ? 'Loading…' : `${totalRecords || items.length} open`}
            <span className="hidden sm:inline ml-1">requests</span>
          </Badge>
          <Button 
            variant="outline" 
            size="sm" 
            className="gap-1 sm:gap-2 h-8 sm:h-9"
            onClick={handleRefresh}
            disabled={refreshing}
          >
            <RefreshCw className={`w-3.5 h-3.5 sm:w-4 sm:h-4 ${refreshing ? 'animate-spin' : ''}`} />
            <span className="hidden sm:inline">{refreshing ? 'Refreshing...' : 'Refresh'}</span>
          </Button>
        </div>
      </div>

      {/* Enhanced Filters Section */}
      <Card className="shadow-lg border-0">
        <CardHeader className="pb-3 sm:pb-4 px-3 sm:px-6">
          <div className="flex items-center justify-between">
            <div className="flex items-center gap-2 sm:gap-3">
              <div className="p-1.5 sm:p-2 bg-blue-100 rounded-lg">
                <Filter className="h-4 w-4 sm:h-5 sm:w-5 text-blue-600" />
              </div>
              <div>
                <CardTitle className="text-base sm:text-lg">Filters & Search</CardTitle>
                <CardDescription className="text-xs sm:text-sm">
                  {activeFiltersCount > 0 && (
                    <span className="text-blue-600 font-medium">
                      {activeFiltersCount} filter{activeFiltersCount > 1 ? 's' : ''} active
                    </span>
                  )}
                </CardDescription>
              </div>
            </div>
            {activeFiltersCount > 0 && (
              <Button
                variant="ghost"
                size="sm"
                onClick={clearFilters}
                className="text-red-600 hover:bg-red-50 gap-1 h-8 sm:h-9 px-2 sm:px-3"
              >
                <X className="w-3 h-3 sm:w-3.5 sm:h-3.5" />
                <span className="text-xs sm:text-sm">Clear</span>
              </Button>
            )}
          </div>
        </CardHeader>
        <CardContent className="space-y-3 sm:space-y-4 px-3 sm:px-6">
          {/* Primary filters */}
          <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-3 sm:gap-4">
            <div className="relative">
              <Search className="absolute left-3 top-1/2 transform -translate-y-1/2 text-gray-400 w-3.5 h-3.5 sm:w-4 sm:h-4" />
              <Input
                placeholder="Search requests, IDs..."
                value={searchTerm}
                onChange={(e) => setSearchTerm(e.target.value)}
                className="pl-9 sm:pl-10 h-9 sm:h-10 md:h-11 text-sm sm:text-base bg-gray-50 border-gray-200 focus:bg-white focus:border-blue-400 focus:ring-1 focus:ring-blue-200 transition-colors"
              />
            </div>
            
            <Select value={priorityFilter} onValueChange={setPriorityFilter}>
              <SelectTrigger className="h-9 sm:h-10 md:h-11 text-sm sm:text-base bg-gray-50 border-gray-200 focus:bg-white focus:border-blue-400 focus:ring-1 focus:ring-blue-200">
                <SelectValue placeholder="All Priorities" />
              </SelectTrigger>
              <SelectContent>
                <SelectItem value="all">All Priorities</SelectItem>
                <SelectItem value="express">
                  <div className="flex items-center gap-2">
                    <Flame className="w-4 h-4 text-orange-600" />
                    <span>Express</span>
                  </div>
                </SelectItem>
                <SelectItem value="standard">
                  <div className="flex items-center gap-2">
                    <Target className="w-4 h-4 text-blue-600" />
                    <span>Standard</span>
                  </div>
                </SelectItem>
              </SelectContent>
            </Select>
            
            <Select value={statusFilter} onValueChange={setStatusFilter}>
              <SelectTrigger className="h-9 sm:h-10 md:h-11 text-sm sm:text-base bg-gray-50 border-gray-200 focus:bg-white focus:border-blue-400 focus:ring-1 focus:ring-blue-200">
                <SelectValue placeholder="All Statuses" />
              </SelectTrigger>
              <SelectContent>
                <SelectItem value="all">All Statuses</SelectItem>
                <SelectItem value="pending">Pending (In Approval)</SelectItem>
                <SelectItem value="approved">Approved (Needs Closure)</SelectItem>
              </SelectContent>
            </Select>

            <div className="flex gap-2">
              <Select value={sortBy} onValueChange={(value: any) => setSortBy(value)}>
                <SelectTrigger className="h-9 sm:h-10 md:h-11 text-sm sm:text-base bg-gray-50 border-gray-200 focus:bg-white focus:border-blue-400 focus:ring-1 focus:ring-blue-200">
                  <SelectValue placeholder="Sort by" />
                </SelectTrigger>
                <SelectContent>
                  <SelectItem value="due">Due Date</SelectItem>
                  <SelectItem value="created">Date Created</SelectItem>
                  <SelectItem value="priority">Priority</SelectItem>
                  <SelectItem value="sla">SLA Progress</SelectItem>
                </SelectContent>
              </Select>
              
              <Button
                variant="outline"
                size="sm"
                onClick={() => setSortOrder(sortOrder === 'asc' ? 'desc' : 'asc')}
                className="px-2 sm:px-3 h-9 sm:h-10 md:h-11"
              >
                {sortOrder === 'asc' ? <SortAsc className="w-3.5 h-3.5 sm:w-4 sm:h-4" /> : <SortDesc className="w-3.5 h-3.5 sm:w-4 sm:h-4" />}
              </Button>
            </div>
          </div>
        </CardContent>
      </Card>

      {/* Requests List */}
      <div className="space-y-3">
        {filteredAndSortedRequests.map((request) => {
          const priorityConfig = getPriorityConfig(request.priority);
          const statusConfig = getStatusConfig(request.status);
          
          return (
            <Card 
              key={request.id} 
              className="group hover:shadow-lg transition-all duration-200 cursor-pointer border border-gray-200 hover:border-blue-400 hover:scale-[1.002]"
              onClick={() => onViewRequest?.(request.id, request.title)}
            >
              <CardContent className="p-4">
                <div className="flex items-start gap-4">
                  {/* Left: Priority Icon */}
                  <div className="flex-shrink-0 pt-1">
                    <div className={`p-2.5 rounded-lg ${priorityConfig.color} border shadow-sm`}>
                      <priorityConfig.icon className={`w-5 h-5 ${priorityConfig.iconColor}`} />
                    </div>
                  </div>

                  {/* Center: Main Content */}
                  <div className="flex-1 min-w-0 space-y-2.5">
                    {/* Header Row */}
                    <div className="flex items-center gap-2.5 flex-wrap">
                      <h3 className="text-base font-bold text-gray-900 group-hover:text-blue-600 transition-colors">
                        {(request as any).displayId || request.id}
                      </h3>
                      <Badge 
                        variant="outline" 
                        className={`${statusConfig.color} text-xs px-2.5 py-0.5 font-semibold shrink-0`}
                      >
                        <statusConfig.icon className="w-3.5 h-3.5 mr-1" />
                        {(statusConfig as any).label || request.status}
                      </Badge>
                      {request.department && (
                        <Badge variant="secondary" className="bg-blue-50 text-blue-700 text-xs px-2.5 py-0.5 hidden sm:inline-flex">
                          {request.department}
                        </Badge>
                      )}
                      <Badge 
                        variant="outline" 
                        className={`${priorityConfig.color} text-xs px-2.5 py-0.5 capitalize hidden md:inline-flex`}
                      >
                        {request.priority}
                      </Badge>
                    </div>

                    {/* Title */}
                    <h4 className="text-sm font-semibold text-gray-800 line-clamp-1 leading-relaxed">
                      {request.title}
                    </h4>

                    {/* SLA Display - Compact Version */}
                    {request.currentLevelSLA && (() => {
                      // Use percentage-based colors to match approver SLA tracker
                      // Green: 0-50%, Amber: 50-75%, Orange: 75-100%, Red: 100%+ (breached)
                      const percentUsed = request.currentLevelSLA.percentageUsed || 0;
                      
                      const getSLAColors = () => {
                        if (percentUsed >= 100) {
                          return {
                            bg: 'bg-red-50 border border-red-200',
                            progress: 'bg-red-600',
                            text: 'text-red-600'
                          };
                        } else if (percentUsed >= 75) {
                          return {
                            bg: 'bg-orange-50 border border-orange-200',
                            progress: 'bg-orange-500',
                            text: 'text-orange-600'
                          };
                        } else if (percentUsed >= 50) {
                          return {
                            bg: 'bg-amber-50 border border-amber-200',
                            progress: 'bg-amber-500',
                            text: 'text-amber-600'
                          };
                        } else {
                          return {
                            bg: 'bg-green-50 border border-green-200',
                            progress: 'bg-green-600',
                            text: 'text-gray-700'
                          };
                        }
                      };
                      
                      const colors = getSLAColors();
                      
                      return (
                        <div className={`p-2 rounded-md ${colors.bg}`}>
                          <div className="flex items-center justify-between mb-1.5">
                            <div className="flex items-center gap-1.5">
                              <Clock className="w-3.5 h-3.5 text-gray-600" />
                              <span className="text-xs font-medium text-gray-900">TAT: {percentUsed}%</span>
                            </div>
                            <div className="flex items-center gap-2 text-xs">
                              <span className="text-gray-600">{request.currentLevelSLA.elapsedText}</span>
                              <span className={`font-semibold ${
                                percentUsed >= 100 ? 'text-red-600' :
                                percentUsed >= 75 ? 'text-orange-600' :
                                percentUsed >= 50 ? 'text-amber-600' :
                                'text-gray-700'
                              }`}>
                                {request.currentLevelSLA.remainingText} left
                              </span>
                            </div>
                          </div>
                          <Progress 
                            value={percentUsed} 
                            className="h-1.5"
                            indicatorClassName={colors.progress}
                          />
                        </div>
                      );
                    })()}

                    {/* Metadata Row */}
                    <div className="flex flex-wrap items-center gap-4 text-xs text-gray-600">
                      <div className="flex items-center gap-1.5">
                        <Avatar className="h-6 w-6 ring-2 ring-white shadow-sm">
                          <AvatarFallback className="bg-gradient-to-br from-slate-700 to-slate-900 text-white text-[10px] font-bold">
                            {request.initiator.avatar}
                          </AvatarFallback>
                        </Avatar>
                        <span className="font-medium text-gray-900">{request.initiator.name}</span>
                      </div>
                      
                      {request.currentApprover && (
                        <div className="flex items-center gap-1.5">
                          <Avatar className="h-6 w-6 ring-2 ring-yellow-200 shadow-sm">
                            <AvatarFallback className="bg-yellow-500 text-white text-[10px] font-bold">
                              {request.currentApprover.avatar}
                            </AvatarFallback>
                          </Avatar>
                          <span className="font-medium text-gray-900">{request.currentApprover.name}</span>
                        </div>
                      )}
                      
                      {request.approvalStep && (
                        <div className="flex items-center gap-1.5">
                          <AlertCircle className="w-3.5 h-3.5 text-blue-500" />
                          <span className="font-medium">{request.approvalStep}</span>
                        </div>
                      )}
                      
                      <div className="flex items-center gap-1.5">
                        <Calendar className="w-3.5 h-3.5" />
                        <span>Created: {request.createdAt !== '—' ? formatDateDDMMYYYY(request.createdAt) : '—'}</span>
                      </div>
                    </div>
                  </div>

                  {/* Right: Arrow */}
                  <div className="flex-shrink-0 flex items-center pt-2">
                    <ArrowRight className="w-5 h-5 text-gray-400 group-hover:text-blue-600 group-hover:translate-x-1 transition-all" />
                  </div>
                </div>
              </CardContent>
            </Card>
          );
        })}
      </div>

      {/* Empty State */}
      {filteredAndSortedRequests.length === 0 && (
        <Card className="shadow-lg border-0">
          <CardContent className="flex flex-col items-center justify-center py-16">
            <div className="w-16 h-16 bg-gray-100 rounded-full flex items-center justify-center mb-4">
              <FileText className="h-8 w-8 text-gray-400" />
            </div>
            <h3 className="text-xl font-semibold text-gray-900 mb-2">No requests found</h3>
            <p className="text-gray-600 text-center max-w-md">
              {searchTerm || activeFiltersCount > 0
                ? 'Try adjusting your filters or search terms to see more results.'
                : 'No open requests available at the moment.'
              }
            </p>
            {activeFiltersCount > 0 && (
              <Button 
                variant="outline" 
                className="mt-4"
                onClick={clearFilters}
              >
                Clear all filters
              </Button>
            )}
          </CardContent>
        </Card>
      )}

      {/* Pagination Controls */}
      {totalPages > 1 && !loading && (
        <Card className="shadow-md">
          <CardContent className="p-4">
            <div className="flex flex-col sm:flex-row items-center justify-between gap-3">
              <div className="text-xs sm:text-sm text-muted-foreground">
                Showing {((currentPage - 1) * itemsPerPage) + 1} to {Math.min(currentPage * itemsPerPage, totalRecords)} of {totalRecords} open requests
              </div>
              
              <div className="flex items-center gap-2">
                <Button
                  variant="outline"
                  size="sm"
                  onClick={() => handlePageChange(currentPage - 1)}
                  disabled={currentPage === 1}
                  className="h-8 w-8 p-0"
                >
                  <ArrowRight className="h-4 w-4 rotate-180" />
                </Button>
                
                {currentPage > 3 && totalPages > 5 && (
                  <>
                    <Button variant="outline" size="sm" onClick={() => handlePageChange(1)} className="h-8 w-8 p-0">1</Button>
                    <span className="text-muted-foreground">...</span>
                  </>
                )}
                
                {getPageNumbers().map((pageNum) => (
                  <Button
                    key={pageNum}
                    variant={pageNum === currentPage ? "default" : "outline"}
                    size="sm"
                    onClick={() => handlePageChange(pageNum)}
                    className={`h-8 w-8 p-0 ${pageNum === currentPage ? 'bg-re-green text-white hover:bg-re-green/90' : ''}`}
                  >
                    {pageNum}
                  </Button>
                ))}
                
                {currentPage < totalPages - 2 && totalPages > 5 && (
                  <>
                    <span className="text-muted-foreground">...</span>
                    <Button variant="outline" size="sm" onClick={() => handlePageChange(totalPages)} className="h-8 w-8 p-0">{totalPages}</Button>
                  </>
                )}
                
                <Button
                  variant="outline"
                  size="sm"
                  onClick={() => handlePageChange(currentPage + 1)}
                  disabled={currentPage === totalPages}
                  className="h-8 w-8 p-0"
                >
                  <ArrowRight className="h-4 w-4" />
                </Button>
              </div>
            </div>
          </CardContent>
        </Card>
      )}
    </div>
  );
}