import React, { useState, useEffect } from 'react';
import {
  AlertTriangle,
  CheckCircle,
  Clock,
  XCircle,
  Filter,
  Search,
  Eye,
  Edit,
  MessageSquare,
  User,
  Calendar,
  MapPin,
  RefreshCw,
  X,
  ArrowUp,
  ArrowDown,
} from 'lucide-react';
import { toast } from 'react-toastify';
import Loading from '../../shared/components/Loading';
import EmptyState from '../../shared/components/EmptyState';
import { formatDate, formatRelativeTime } from '../../shared/utils/format';
import { logger } from '../../shared/utils/logger';
import complaintService, { Complaint, ComplaintUpdate } from '../../features/complaints/services/complaintService';
import userService from '../../features/auth/services/userService';
import Pagination from '../../shared/components/Pagination';

const IncidentComplaintManagementPage: React.FC = () => {
  const [loading, setLoading] = useState(true);
  const [complaints, setComplaints] = useState<Complaint[]>([]);
  const [selectedComplaint, setSelectedComplaint] = useState<Complaint | null>(null);
  const [complaintUpdates, setComplaintUpdates] = useState<ComplaintUpdate[]>([]);
  const [showDetailModal, setShowDetailModal] = useState(false);
  const [staffMembers, setStaffMembers] = useState<any[]>([]);
  const [currentPage, setCurrentPage] = useState(1);
  const [totalPages, setTotalPages] = useState(1);
  const [filters, setFilters] = useState({
    status: '',
    priority: '',
    category: '',
    assigned_to: '',
    search: '',
  });
  const [expandedFilters, setExpandedFilters] = useState(false);
  const [updatingComplaintId, setUpdatingComplaintId] = useState<number | null>(null);
  const [updateForm, setUpdateForm] = useState({
    description: '',
    update_type: 'note',
  });
  const [resolveForm, setResolveForm] = useState({
    resolution_notes: '',
    compensation_amount: '',
  });

  useEffect(() => {
    fetchComplaints();
    fetchStaffMembers();
  }, [currentPage, filters.status, filters.priority, filters.category, filters.assigned_to]);

  const fetchComplaints = async () => {
    try {
      setLoading(true);
      const params: any = {
        page: currentPage,
        limit: 20,
      };

      if (filters.status) params.status = filters.status;
      if (filters.priority) params.priority = filters.priority;
      if (filters.category) params.category = filters.category;
      if (filters.assigned_to) params.assigned_to = parseInt(filters.assigned_to);

      const response = await complaintService.getComplaints(params);

      if (response.status === 'success' && response.data?.complaints) {
        let filtered = response.data.complaints;

        // Client-side search filter
        if (filters.search) {
          const searchLower = filters.search.toLowerCase();
          filtered = filtered.filter(
            (complaint: Complaint) =>
              complaint.title?.toLowerCase().includes(searchLower) ||
              complaint.guest_name?.toLowerCase().includes(searchLower) ||
              complaint.description?.toLowerCase().includes(searchLower) ||
              complaint.room_number?.toString().includes(searchLower)
          );
        }

        setComplaints(filtered);
        setTotalPages(response.data.pagination?.total_pages || 1);
      }
    } catch (error: any) {
      logger.error('Error fetching complaints', error);
      toast.error('Failed to load complaints');
    } finally {
      setLoading(false);
    }
  };

  const fetchStaffMembers = async () => {
    try {
      const response = await userService.getUsers({ role: 'staff', limit: 100 });
      if (response.data?.users) {
        setStaffMembers(response.data.users);
      }
    } catch (error) {
      logger.error('Failed to fetch staff members', error);
    }
  };

  const handleViewDetails = async (complaint: Complaint) => {
    try {
      const response = await complaintService.getComplaint(complaint.id);
      if (response.status === 'success' && response.data) {
        setSelectedComplaint(response.data.complaint);
        setComplaintUpdates(response.data.updates || []);
        setShowDetailModal(true);
      }
    } catch (error: any) {
      toast.error('Failed to load complaint details');
    }
  };

  const handleUpdateStatus = async (complaintId: number, newStatus: string) => {
    try {
      setUpdatingComplaintId(complaintId);
      await complaintService.updateComplaint(complaintId, { status: newStatus });
      toast.success(`Complaint marked as ${newStatus}`);
      fetchComplaints();
      if (selectedComplaint?.id === complaintId) {
        const updated = await complaintService.getComplaint(complaintId);
        if (updated.status === 'success') {
          setSelectedComplaint(updated.data.complaint);
        }
      }
    } catch (error: any) {
      toast.error(error.response?.data?.detail || 'Failed to update complaint');
    } finally {
      setUpdatingComplaintId(null);
    }
  };

  const handleAssign = async (complaintId: number, staffId?: number) => {
    try {
      setUpdatingComplaintId(complaintId);
      await complaintService.updateComplaint(complaintId, { assigned_to: staffId });
      toast.success('Complaint assigned successfully');
      fetchComplaints();
      if (selectedComplaint?.id === complaintId) {
        const updated = await complaintService.getComplaint(complaintId);
        if (updated.status === 'success') {
          setSelectedComplaint(updated.data.complaint);
        }
      }
    } catch (error: any) {
      toast.error(error.response?.data?.detail || 'Failed to assign complaint');
    } finally {
      setUpdatingComplaintId(null);
    }
  };

  const handleAddUpdate = async () => {
    if (!selectedComplaint || !updateForm.description.trim()) {
      toast.error('Please enter update description');
      return;
    }

    try {
      await complaintService.addComplaintUpdate(selectedComplaint.id, {
        description: updateForm.description,
        update_type: updateForm.update_type,
      });
      toast.success('Update added successfully');
      setUpdateForm({ description: '', update_type: 'note' });
      
      // Refresh complaint details
      const updated = await complaintService.getComplaint(selectedComplaint.id);
      if (updated.status === 'success') {
        setSelectedComplaint(updated.data.complaint);
        setComplaintUpdates(updated.data.updates || []);
      }
    } catch (error: any) {
      toast.error(error.response?.data?.detail || 'Failed to add update');
    }
  };

  const handleResolve = async () => {
    if (!selectedComplaint || !resolveForm.resolution_notes.trim()) {
      toast.error('Please enter resolution notes');
      return;
    }

    try {
      setUpdatingComplaintId(selectedComplaint.id);
      await complaintService.resolveComplaint(selectedComplaint.id, {
        resolution_notes: resolveForm.resolution_notes,
        compensation_amount: resolveForm.compensation_amount ? parseFloat(resolveForm.compensation_amount) : undefined,
      });
      toast.success('Complaint resolved successfully');
      setResolveForm({ resolution_notes: '', compensation_amount: '' });
      fetchComplaints();
      setShowDetailModal(false);
      setSelectedComplaint(null);
    } catch (error: any) {
      toast.error(error.response?.data?.detail || 'Failed to resolve complaint');
    } finally {
      setUpdatingComplaintId(null);
    }
  };

  const getStatusColor = (status: string) => {
    switch (status) {
      case 'open':
        return 'bg-red-100 text-red-800 border-red-300';
      case 'in_progress':
        return 'bg-yellow-100 text-yellow-800 border-yellow-300';
      case 'resolved':
        return 'bg-green-100 text-green-800 border-green-300';
      case 'closed':
        return 'bg-gray-100 text-gray-800 border-gray-300';
      default:
        return 'bg-gray-100 text-gray-800 border-gray-300';
    }
  };

  const getPriorityColor = (priority: string) => {
    switch (priority) {
      case 'urgent':
        return 'bg-red-100 text-red-800 border-red-300';
      case 'high':
        return 'bg-orange-100 text-orange-800 border-orange-300';
      case 'medium':
        return 'bg-yellow-100 text-yellow-800 border-yellow-300';
      case 'low':
        return 'bg-blue-100 text-blue-800 border-blue-300';
      default:
        return 'bg-gray-100 text-gray-800 border-gray-300';
    }
  };

  const getCategoryIcon = (category: string) => {
    switch (category) {
      case 'room_quality':
        return '🏨';
      case 'service':
        return '👥';
      case 'billing':
        return '💰';
      case 'noise':
        return '🔊';
      case 'cleanliness':
        return '🧹';
      case 'maintenance':
        return '🔧';
      default:
        return '📋';
    }
  };

  const openCount = complaints.filter(c => c.status === 'open').length;
  const inProgressCount = complaints.filter(c => c.status === 'in_progress').length;
  const urgentCount = complaints.filter(c => c.priority === 'urgent' && c.status !== 'resolved' && c.status !== 'closed').length;

  if (loading && complaints.length === 0) {
    return <Loading fullScreen text="Loading complaints..." />;
  }

  return (
    <div className="min-h-screen bg-gradient-to-br from-slate-50 via-white to-slate-50 px-3 sm:px-4 md:px-6 lg:px-8 py-6 sm:py-8 md:py-10">
      {/* Header */}
      <div className="mb-6 sm:mb-8">
        <div className="flex items-center gap-2 sm:gap-3 mb-2 sm:mb-3">
          <div className="h-1 w-12 sm:w-16 md:w-20 bg-gradient-to-r from-red-400 via-orange-500 to-yellow-600 rounded-full"></div>
          <h1 className="text-2xl sm:text-3xl md:text-4xl font-bold bg-gradient-to-r from-slate-900 via-slate-800 to-slate-900 bg-clip-text text-transparent tracking-tight">
            Incident & Complaint Management
          </h1>
        </div>
        <p className="text-slate-600 mt-2 sm:mt-3 text-sm sm:text-base md:text-lg font-light">
          Track, assign, and resolve guest complaints and incidents
        </p>
      </div>

      {/* Stats Cards */}
      <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-4 gap-4 sm:gap-5 md:gap-6 mb-6 sm:mb-8">
        <div className="bg-white/90 backdrop-blur-md rounded-xl shadow-xl border border-slate-200/60 p-4 sm:p-5 border-l-4 border-l-red-500">
          <div className="flex items-center justify-between">
            <div>
              <p className="text-slate-500 text-xs font-semibold uppercase tracking-wider mb-1">Open</p>
              <p className="text-2xl sm:text-3xl font-bold text-red-600">{openCount}</p>
            </div>
            <AlertTriangle className="w-8 h-8 sm:w-10 sm:h-10 text-red-500" />
          </div>
        </div>

        <div className="bg-white/90 backdrop-blur-md rounded-xl shadow-xl border border-slate-200/60 p-4 sm:p-5 border-l-4 border-l-yellow-500">
          <div className="flex items-center justify-between">
            <div>
              <p className="text-slate-500 text-xs font-semibold uppercase tracking-wider mb-1">In Progress</p>
              <p className="text-2xl sm:text-3xl font-bold text-yellow-600">{inProgressCount}</p>
            </div>
            <Clock className="w-8 h-8 sm:w-10 sm:h-10 text-yellow-500" />
          </div>
        </div>

        <div className="bg-white/90 backdrop-blur-md rounded-xl shadow-xl border border-slate-200/60 p-4 sm:p-5 border-l-4 border-l-orange-500">
          <div className="flex items-center justify-between">
            <div>
              <p className="text-slate-500 text-xs font-semibold uppercase tracking-wider mb-1">Urgent</p>
              <p className="text-2xl sm:text-3xl font-bold text-orange-600">{urgentCount}</p>
            </div>
            <ArrowUp className="w-8 h-8 sm:w-10 sm:h-10 text-orange-500" />
          </div>
        </div>

        <div className="bg-white/90 backdrop-blur-md rounded-xl shadow-xl border border-slate-200/60 p-4 sm:p-5 border-l-4 border-l-blue-500">
          <div className="flex items-center justify-between">
            <div>
              <p className="text-slate-500 text-xs font-semibold uppercase tracking-wider mb-1">Total</p>
              <p className="text-2xl sm:text-3xl font-bold text-blue-600">{complaints.length}</p>
            </div>
            <AlertTriangle className="w-8 h-8 sm:w-10 sm:h-10 text-blue-500" />
          </div>
        </div>
      </div>

      {/* Filters */}
      <div className="bg-white/90 backdrop-blur-md rounded-xl shadow-xl border border-slate-200/60 p-4 sm:p-5 md:p-6 mb-6 sm:mb-8">
        <div className="flex items-center justify-between mb-4">
          <h2 className="text-lg sm:text-xl font-bold text-slate-900 flex items-center gap-2">
            <Filter className="w-5 h-5 text-blue-600" />
            Filters
          </h2>
          <button
            onClick={() => setExpandedFilters(!expandedFilters)}
            className="flex items-center gap-2 px-3 py-2 text-sm text-blue-600 hover:text-blue-700 font-medium"
          >
            {expandedFilters ? <ArrowUp className="w-4 h-4" /> : <ArrowDown className="w-4 h-4" />}
            {expandedFilters ? 'Hide' : 'Show'} Filters
          </button>
        </div>

        {/* Search */}
        <div className="mb-4">
          <div className="relative">
            <Search className="absolute left-3 top-1/2 transform -translate-y-1/2 text-slate-400 w-5 h-5" />
            <input
              type="text"
              placeholder="Search by title, guest name, room, or description..."
              value={filters.search}
              onChange={(e) => setFilters({ ...filters, search: e.target.value })}
              className="w-full pl-10 pr-4 py-2.5 border-2 border-slate-200 rounded-xl focus:border-blue-400 focus:ring-4 focus:ring-blue-100 transition-all duration-200 text-slate-700"
            />
          </div>
        </div>

        {expandedFilters && (
          <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-4 gap-4">
            <div>
              <label className="block text-sm font-medium text-slate-700 mb-2">Status</label>
              <select
                value={filters.status}
                onChange={(e) => {
                  setFilters({ ...filters, status: e.target.value });
                  setCurrentPage(1);
                }}
                className="w-full px-3 py-2.5 border-2 border-slate-200 rounded-xl focus:border-blue-400 focus:ring-4 focus:ring-blue-100 transition-all duration-200 text-slate-700"
              >
                <option value="">All Statuses</option>
                <option value="open">Open</option>
                <option value="in_progress">In Progress</option>
                <option value="resolved">Resolved</option>
                <option value="closed">Closed</option>
              </select>
            </div>

            <div>
              <label className="block text-sm font-medium text-slate-700 mb-2">Priority</label>
              <select
                value={filters.priority}
                onChange={(e) => {
                  setFilters({ ...filters, priority: e.target.value });
                  setCurrentPage(1);
                }}
                className="w-full px-3 py-2.5 border-2 border-slate-200 rounded-xl focus:border-blue-400 focus:ring-4 focus:ring-blue-100 transition-all duration-200 text-slate-700"
              >
                <option value="">All Priorities</option>
                <option value="urgent">Urgent</option>
                <option value="high">High</option>
                <option value="medium">Medium</option>
                <option value="low">Low</option>
              </select>
            </div>

            <div>
              <label className="block text-sm font-medium text-slate-700 mb-2">Category</label>
              <select
                value={filters.category}
                onChange={(e) => {
                  setFilters({ ...filters, category: e.target.value });
                  setCurrentPage(1);
                }}
                className="w-full px-3 py-2.5 border-2 border-slate-200 rounded-xl focus:border-blue-400 focus:ring-4 focus:ring-blue-100 transition-all duration-200 text-slate-700"
              >
                <option value="">All Categories</option>
                <option value="room_quality">Room Quality</option>
                <option value="service">Service</option>
                <option value="billing">Billing</option>
                <option value="noise">Noise</option>
                <option value="cleanliness">Cleanliness</option>
                <option value="maintenance">Maintenance</option>
                <option value="other">Other</option>
              </select>
            </div>

            <div>
              <label className="block text-sm font-medium text-slate-700 mb-2">Assigned To</label>
              <select
                value={filters.assigned_to}
                onChange={(e) => {
                  setFilters({ ...filters, assigned_to: e.target.value });
                  setCurrentPage(1);
                }}
                className="w-full px-3 py-2.5 border-2 border-slate-200 rounded-xl focus:border-blue-400 focus:ring-4 focus:ring-blue-100 transition-all duration-200 text-slate-700"
              >
                <option value="">All Staff</option>
                <option value="unassigned">Unassigned</option>
                {staffMembers.map((staff) => (
                  <option key={staff.id} value={staff.id}>
                    {staff.full_name}
                  </option>
                ))}
              </select>
            </div>
          </div>
        )}

        <div className="mt-4 flex gap-2">
          <button
            onClick={() => {
              setFilters({
                status: '',
                priority: '',
                category: '',
                assigned_to: '',
                search: '',
              });
              setCurrentPage(1);
            }}
            className="px-4 py-2 text-sm text-slate-600 hover:text-slate-800 font-medium"
          >
            Clear Filters
          </button>
          <button
            onClick={fetchComplaints}
            className="px-4 py-2 text-sm bg-blue-600 text-white rounded-lg hover:bg-blue-700 font-medium flex items-center gap-2"
          >
            <RefreshCw className="w-4 h-4" />
            Refresh
          </button>
        </div>
      </div>

      {/* Complaints List */}
      <div className="bg-white/90 backdrop-blur-md rounded-xl shadow-xl border border-slate-200/60 overflow-hidden">
        {complaints.length === 0 ? (
          <div className="p-8 sm:p-12">
            <EmptyState
              title="No complaints found"
              description="There are no complaints matching your filters."
            />
          </div>
        ) : (
          <>
            <div className="overflow-x-auto">
              <table className="min-w-full divide-y divide-slate-200">
                <thead className="bg-slate-50">
                  <tr>
                    <th className="px-4 sm:px-6 py-3 text-left text-xs font-medium text-slate-500 uppercase tracking-wider">
                      Complaint
                    </th>
                    <th className="px-4 sm:px-6 py-3 text-left text-xs font-medium text-slate-500 uppercase tracking-wider">
                      Guest / Room
                    </th>
                    <th className="px-4 sm:px-6 py-3 text-left text-xs font-medium text-slate-500 uppercase tracking-wider">
                      Status
                    </th>
                    <th className="px-4 sm:px-6 py-3 text-left text-xs font-medium text-slate-500 uppercase tracking-wider">
                      Priority
                    </th>
                    <th className="px-4 sm:px-6 py-3 text-left text-xs font-medium text-slate-500 uppercase tracking-wider">
                      Assigned To
                    </th>
                    <th className="px-4 sm:px-6 py-3 text-left text-xs font-medium text-slate-500 uppercase tracking-wider">
                      Date
                    </th>
                    <th className="px-4 sm:px-6 py-3 text-left text-xs font-medium text-slate-500 uppercase tracking-wider">
                      Actions
                    </th>
                  </tr>
                </thead>
                <tbody className="bg-white divide-y divide-slate-200">
                  {complaints.map((complaint) => (
                    <tr
                      key={complaint.id}
                      className={`hover:bg-slate-50 transition-colors cursor-pointer ${
                        complaint.priority === 'urgent' && complaint.status !== 'resolved' && complaint.status !== 'closed'
                          ? 'bg-red-50/50'
                          : ''
                      }`}
                      onClick={() => handleViewDetails(complaint)}
                    >
                      <td className="px-4 sm:px-6 py-4">
                        <div className="flex items-center gap-3">
                          <span className="text-2xl">{getCategoryIcon(complaint.category)}</span>
                          <div>
                            <div className="text-sm font-medium text-slate-900">{complaint.title}</div>
                            <div className="text-xs text-slate-500 capitalize">{complaint.category.replace('_', ' ')}</div>
                          </div>
                        </div>
                      </td>
                      <td className="px-4 sm:px-6 py-4 whitespace-nowrap">
                        <div className="text-sm text-slate-900">{complaint.guest_name || 'N/A'}</div>
                        {complaint.room_number && (
                          <div className="text-xs text-slate-500 flex items-center gap-1">
                            <MapPin className="w-3 h-3" />
                            Room {complaint.room_number}
                          </div>
                        )}
                      </td>
                      <td className="px-4 sm:px-6 py-4 whitespace-nowrap">
                        <span
                          className={`px-2 py-1 inline-flex text-xs leading-5 font-semibold rounded-full border ${getStatusColor(
                            complaint.status
                          )}`}
                        >
                          {complaint.status.replace('_', ' ')}
                        </span>
                      </td>
                      <td className="px-4 sm:px-6 py-4 whitespace-nowrap">
                        <span
                          className={`px-2 py-1 inline-flex text-xs leading-5 font-semibold rounded-full border ${getPriorityColor(
                            complaint.priority
                          )}`}
                        >
                          {complaint.priority}
                        </span>
                      </td>
                      <td className="px-4 sm:px-6 py-4 whitespace-nowrap text-sm text-slate-500">
                        {complaint.assigned_staff_name || (
                          <span className="text-yellow-600 font-medium">Unassigned</span>
                        )}
                      </td>
                      <td className="px-4 sm:px-6 py-4 whitespace-nowrap text-sm text-slate-500">
                        {formatRelativeTime(complaint.created_at)}
                      </td>
                      <td className="px-4 sm:px-6 py-4 whitespace-nowrap text-sm font-medium">
                        <button
                          onClick={(e) => {
                            e.stopPropagation();
                            handleViewDetails(complaint);
                          }}
                          className="text-blue-600 hover:text-blue-900 p-1.5 hover:bg-blue-50 rounded-lg transition-colors"
                          title="View details"
                        >
                          <Eye className="w-4 h-4" />
                        </button>
                      </td>
                    </tr>
                  ))}
                </tbody>
              </table>
            </div>

            {totalPages > 1 && (
              <div className="px-4 sm:px-6 py-4 border-t border-slate-200">
                <Pagination
                  currentPage={currentPage}
                  totalPages={totalPages}
                  onPageChange={setCurrentPage}
                />
              </div>
            )}
          </>
        )}
      </div>

      {/* Detail Modal */}
      {showDetailModal && selectedComplaint && (
        <div className="fixed inset-0 bg-black bg-opacity-50 flex items-center justify-center z-50 p-4">
          <div className="bg-white rounded-lg shadow-xl max-w-4xl w-full max-h-[90vh] overflow-y-auto">
            <div className="p-6 border-b border-slate-200">
              <div className="flex items-center justify-between">
                <h2 className="text-2xl font-bold text-slate-900">Complaint Details</h2>
                <button
                  onClick={() => {
                    setShowDetailModal(false);
                    setSelectedComplaint(null);
                    setComplaintUpdates([]);
                    setUpdateForm({ description: '', update_type: 'note' });
                    setResolveForm({ resolution_notes: '', compensation_amount: '' });
                  }}
                  className="text-slate-400 hover:text-slate-600"
                >
                  <X className="w-6 h-6" />
                </button>
              </div>
            </div>

            <div className="p-6 space-y-6">
              {/* Complaint Info */}
              <div className="grid grid-cols-2 gap-4">
                <div>
                  <label className="block text-sm font-medium text-slate-500 mb-1">Status</label>
                  <span
                    className={`px-3 py-1 inline-flex text-sm font-semibold rounded-full border ${getStatusColor(
                      selectedComplaint.status
                    )}`}
                  >
                    {selectedComplaint.status.replace('_', ' ')}
                  </span>
                </div>
                <div>
                  <label className="block text-sm font-medium text-slate-500 mb-1">Priority</label>
                  <span
                    className={`px-3 py-1 inline-flex text-sm font-semibold rounded-full border ${getPriorityColor(
                      selectedComplaint.priority
                    )}`}
                  >
                    {selectedComplaint.priority}
                  </span>
                </div>
              </div>

              <div>
                <label className="block text-sm font-medium text-slate-500 mb-1">Title</label>
                <p className="text-slate-900 font-medium">{selectedComplaint.title}</p>
              </div>

              <div>
                <label className="block text-sm font-medium text-slate-500 mb-1">Description</label>
                <p className="text-slate-900 whitespace-pre-wrap">{selectedComplaint.description}</p>
              </div>

              <div className="grid grid-cols-2 gap-4">
                <div>
                  <label className="block text-sm font-medium text-slate-500 mb-1">Guest</label>
                  <p className="text-slate-900">{selectedComplaint.guest_name || 'N/A'}</p>
                </div>
                {selectedComplaint.room_number && (
                  <div>
                    <label className="block text-sm font-medium text-slate-500 mb-1">Room</label>
                    <p className="text-slate-900">Room {selectedComplaint.room_number}</p>
                  </div>
                )}
              </div>

              <div className="grid grid-cols-2 gap-4">
                <div>
                  <label className="block text-sm font-medium text-slate-500 mb-1">Category</label>
                  <p className="text-slate-900 capitalize">{selectedComplaint.category.replace('_', ' ')}</p>
                </div>
                <div>
                  <label className="block text-sm font-medium text-slate-500 mb-1">Created At</label>
                  <p className="text-slate-900">{formatDate(selectedComplaint.created_at)}</p>
                </div>
              </div>

              {selectedComplaint.assigned_staff_name && (
                <div>
                  <label className="block text-sm font-medium text-slate-500 mb-1">Assigned To</label>
                  <p className="text-slate-900">{selectedComplaint.assigned_staff_name}</p>
                </div>
              )}

              {/* Updates Timeline */}
              {complaintUpdates.length > 0 && (
                <div>
                  <label className="block text-sm font-medium text-slate-500 mb-3">Updates Timeline</label>
                  <div className="space-y-3">
                    {complaintUpdates.map((update) => (
                      <div key={update.id} className="p-4 bg-slate-50 rounded-lg border border-slate-200">
                        <div className="flex items-center justify-between mb-2">
                          <span className="text-sm font-semibold text-slate-900">{update.updated_by_name || 'System'}</span>
                          <span className="text-xs text-slate-500">{formatRelativeTime(update.created_at)}</span>
                        </div>
                        <p className="text-sm text-slate-700">{update.description}</p>
                      </div>
                    ))}
                  </div>
                </div>
              )}

              {/* Actions */}
              {selectedComplaint.status !== 'resolved' && selectedComplaint.status !== 'closed' && (
                <div className="pt-4 border-t border-slate-200 space-y-4">
                  {!selectedComplaint.assigned_to && (
                    <div>
                      <label className="block text-sm font-medium text-slate-700 mb-2">Assign To</label>
                      <select
                        onChange={(e) => {
                          if (e.target.value) {
                            handleAssign(selectedComplaint.id, parseInt(e.target.value));
                          }
                        }}
                        className="w-full px-3 py-2 border-2 border-slate-200 rounded-lg focus:border-blue-400 focus:ring-4 focus:ring-blue-100"
                      >
                        <option value="">Select staff member...</option>
                        {staffMembers.map((staff) => (
                          <option key={staff.id} value={staff.id}>
                            {staff.full_name}
                          </option>
                        ))}
                      </select>
                    </div>
                  )}

                  <div>
                    <label className="block text-sm font-medium text-slate-700 mb-2">Add Update</label>
                    <textarea
                      value={updateForm.description}
                      onChange={(e) => setUpdateForm({ ...updateForm, description: e.target.value })}
                      rows={3}
                      placeholder="Add an update or note..."
                      className="w-full px-3 py-2 border-2 border-slate-200 rounded-lg focus:border-blue-400 focus:ring-4 focus:ring-blue-100"
                    />
                    <button
                      onClick={handleAddUpdate}
                      className="mt-2 px-4 py-2 bg-blue-600 text-white rounded-lg hover:bg-blue-700 font-medium"
                    >
                      Add Update
                    </button>
                  </div>

                  {selectedComplaint.status !== 'resolved' && (
                    <div>
                      <label className="block text-sm font-medium text-slate-700 mb-2">Resolution Notes *</label>
                      <textarea
                        value={resolveForm.resolution_notes}
                        onChange={(e) => setResolveForm({ ...resolveForm, resolution_notes: e.target.value })}
                        rows={4}
                        placeholder="Enter resolution details..."
                        className="w-full px-3 py-2 border-2 border-slate-200 rounded-lg focus:border-blue-400 focus:ring-4 focus:ring-blue-100"
                      />
                      <div className="mt-2">
                        <label className="block text-sm font-medium text-slate-700 mb-2">Compensation Amount (Optional)</label>
                        <input
                          type="number"
                          value={resolveForm.compensation_amount}
                          onChange={(e) => setResolveForm({ ...resolveForm, compensation_amount: e.target.value })}
                          placeholder="0.00"
                          className="w-full px-3 py-2 border-2 border-slate-200 rounded-lg focus:border-blue-400 focus:ring-4 focus:ring-blue-100"
                        />
                      </div>
                      <button
                        onClick={handleResolve}
                        disabled={updatingComplaintId === selectedComplaint.id}
                        className="mt-2 w-full px-4 py-2 bg-green-600 text-white rounded-lg hover:bg-green-700 font-medium disabled:opacity-50"
                      >
                        {updatingComplaintId === selectedComplaint.id ? 'Resolving...' : 'Resolve Complaint'}
                      </button>
                    </div>
                  )}

                  <div className="flex gap-2">
                    <button
                      onClick={() => handleUpdateStatus(selectedComplaint.id, 'in_progress')}
                      disabled={updatingComplaintId === selectedComplaint.id || selectedComplaint.status === 'in_progress'}
                      className="flex-1 px-4 py-2 bg-yellow-600 text-white rounded-lg hover:bg-yellow-700 font-medium disabled:opacity-50"
                    >
                      Mark In Progress
                    </button>
                    <button
                      onClick={() => handleUpdateStatus(selectedComplaint.id, 'closed')}
                      disabled={updatingComplaintId === selectedComplaint.id}
                      className="flex-1 px-4 py-2 bg-gray-600 text-white rounded-lg hover:bg-gray-700 font-medium disabled:opacity-50"
                    >
                      Close
                    </button>
                  </div>
                </div>
              )}

              {selectedComplaint.status === 'resolved' && selectedComplaint.resolution_notes && (
                <div className="pt-4 border-t border-slate-200">
                  <label className="block text-sm font-medium text-slate-500 mb-1">Resolution Notes</label>
                  <p className="text-slate-900 whitespace-pre-wrap">{selectedComplaint.resolution_notes}</p>
                </div>
              )}
            </div>
          </div>
        </div>
      )}
    </div>
  );
};

export default IncidentComplaintManagementPage;

