/**
 * @ai-summary Mobile admin screen for user management
 * @ai-context List users, search, filter, change tiers, deactivate/reactivate
 */

import React, { useState, useCallback } from 'react';
import { Navigate } from 'react-router-dom';
import { GlassCard } from '../../../shared-minimal/components/mobile/GlassCard';
import { MobileContainer } from '../../../shared-minimal/components/mobile/MobileContainer';
import { useAdminAccess } from '../../../core/auth/useAdminAccess';
import {
  useUsers,
  useUpdateUserTier,
  useDeactivateUser,
  useReactivateUser,
  useUpdateUserProfile,
  usePromoteToAdmin,
  useHardDeleteUser,
  useAdminStats,
  useUserVehicles,
} from '../hooks/useUsers';
import {
  ManagedUser,
  SubscriptionTier,
  ListUsersParams,
} from '../types/admin.types';

// Modal component for dialogs
interface ModalProps {
  isOpen: boolean;
  onClose: () => void;
  title: string;
  children: React.ReactNode;
  actions?: React.ReactNode;
}

const Modal: React.FC<ModalProps> = ({ isOpen, onClose, title, children, actions }) => {
  if (!isOpen) return null;

  return (
    <div className="fixed inset-0 bg-black bg-opacity-50 flex items-center justify-center z-50 p-4">
      <div className="bg-white dark:bg-scuro rounded-xl p-6 max-w-sm w-full shadow-xl">
        <h3 className="text-lg font-semibold text-slate-800 dark:text-avus mb-4">{title}</h3>
        {children}
        <div className="flex justify-end gap-2 mt-4">
          {actions || (
            <button
              onClick={onClose}
              className="px-4 py-2 bg-gray-200 text-gray-700 rounded-lg font-medium min-h-[44px]"
            >
              Close
            </button>
          )}
        </div>
      </div>
    </div>
  );
};

// Tier badge component
const TierBadge: React.FC<{ tier: SubscriptionTier }> = ({ tier }) => {
  const colors: Record<SubscriptionTier, string> = {
    free: 'bg-gray-100 text-gray-700',
    pro: 'bg-blue-100 text-blue-700',
    enterprise: 'bg-purple-100 text-purple-700',
  };

  return (
    <span className={`px-2 py-1 rounded-full text-xs font-medium ${colors[tier]}`}>
      {tier.charAt(0).toUpperCase() + tier.slice(1)}
    </span>
  );
};

// Status badge component
const StatusBadge: React.FC<{ active: boolean }> = ({ active }) => (
  <span
    className={`px-2 py-1 rounded-full text-xs font-medium ${
      active ? 'bg-green-100 text-green-700' : 'bg-red-100 text-red-700'
    }`}
  >
    {active ? 'Active' : 'Deactivated'}
  </span>
);

// Vehicle count badge component
const VehicleCountBadge: React.FC<{ count: number; onClick?: () => void }> = ({ count, onClick }) => (
  <button
    onClick={(e) => {
      e.stopPropagation();
      onClick?.();
    }}
    disabled={count === 0 || !onClick}
    className={`px-2 py-1 rounded-full text-xs font-medium bg-slate-100 text-slate-700 flex items-center gap-1 ${count > 0 && onClick ? 'cursor-pointer' : ''}`}
  >
    {count} {count === 1 ? 'vehicle' : 'vehicles'}
    {count > 0 && onClick && (
      <svg className="w-3 h-3" fill="none" stroke="currentColor" viewBox="0 0 24 24">
        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 9l-7 7-7-7" />
      </svg>
    )}
  </button>
);

// Expandable vehicle list component
const UserVehiclesList: React.FC<{ auth0Sub: string; isOpen: boolean }> = ({ auth0Sub, isOpen }) => {
  const { data, isLoading, error } = useUserVehicles(auth0Sub);

  if (!isOpen) return null;

  return (
    <div className="mt-3 pt-3 border-t border-slate-200 dark:border-silverstone">
      <p className="text-xs font-semibold text-slate-500 dark:text-silverstone uppercase mb-2 flex items-center gap-1">
        <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
          <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 4H5c-1.1 0-2 .9-2 2v10c0 1.1.9 2 2 2h4l3 3 3-3h4c1.1 0 2-.9 2-2V6c0-1.1-.9-2-2-2zM8 11V9h8v2m-8 4v-2h5v2" />
        </svg>
        Vehicles
      </p>
      {isLoading ? (
        <div className="flex justify-center py-2">
          <div className="animate-spin rounded-full h-5 w-5 border-b-2 border-blue-600" />
        </div>
      ) : error ? (
        <p className="text-xs text-red-500">Failed to load vehicles</p>
      ) : !data?.vehicles?.length ? (
        <p className="text-xs text-slate-400">No vehicles registered</p>
      ) : (
        <div className="space-y-1">
          {data.vehicles.map((vehicle, idx) => (
            <div key={idx} className="text-sm text-slate-600 dark:text-silverstone bg-slate-50 dark:bg-carbon px-2 py-1 rounded">
              {vehicle.year} {vehicle.make} {vehicle.model}
            </div>
          ))}
        </div>
      )}
    </div>
  );
};

export const AdminUsersMobileScreen: React.FC = () => {
  const { isAdmin, loading: adminLoading } = useAdminAccess();

  // Filter state
  const [params, setParams] = useState<ListUsersParams>({
    page: 1,
    pageSize: 20,
    status: 'all',
    sortBy: 'createdAt',
    sortOrder: 'desc',
  });
  const [searchInput, setSearchInput] = useState('');
  const [showFilters, setShowFilters] = useState(false);

  // Query
  const { data, isLoading, error, refetch } = useUsers(params);

  // Admin stats
  const { data: statsData } = useAdminStats();

  // Expanded user for vehicle list
  const [expandedUserId, setExpandedUserId] = useState<string | null>(null);

  // Mutations
  const updateTierMutation = useUpdateUserTier();
  const deactivateMutation = useDeactivateUser();
  const reactivateMutation = useReactivateUser();
  const updateProfileMutation = useUpdateUserProfile();
  const promoteToAdminMutation = usePromoteToAdmin();
  const hardDeleteMutation = useHardDeleteUser();

  // Selected user for actions
  const [selectedUser, setSelectedUser] = useState<ManagedUser | null>(null);
  const [showUserActions, setShowUserActions] = useState(false);
  const [showTierPicker, setShowTierPicker] = useState(false);
  const [showDeactivateConfirm, setShowDeactivateConfirm] = useState(false);
  const [deactivateReason, setDeactivateReason] = useState('');
  const [showEditModal, setShowEditModal] = useState(false);
  const [editEmail, setEditEmail] = useState('');
  const [editDisplayName, setEditDisplayName] = useState('');
  const [showPromoteModal, setShowPromoteModal] = useState(false);
  const [promoteRole, setPromoteRole] = useState<'admin' | 'super_admin'>('admin');
  const [showHardDeleteModal, setShowHardDeleteModal] = useState(false);
  const [hardDeleteReason, setHardDeleteReason] = useState('');
  const [hardDeleteConfirmText, setHardDeleteConfirmText] = useState('');

  // Handlers
  const handleSearch = useCallback(() => {
    setParams(prev => ({ ...prev, search: searchInput || undefined, page: 1 }));
  }, [searchInput]);

  const handleClearSearch = useCallback(() => {
    setSearchInput('');
    setParams(prev => ({ ...prev, search: undefined, page: 1 }));
  }, []);

  const handleTierFilterChange = useCallback((tier: SubscriptionTier | '') => {
    setParams(prev => ({
      ...prev,
      tier: tier || undefined,
      page: 1,
    }));
  }, []);

  const handleStatusFilterChange = useCallback((status: 'active' | 'deactivated' | 'all') => {
    setParams(prev => ({ ...prev, status, page: 1 }));
  }, []);

  const handleUserClick = useCallback((user: ManagedUser) => {
    setSelectedUser(user);
    setShowUserActions(true);
  }, []);

  const handleTierChange = useCallback(
    (newTier: SubscriptionTier) => {
      if (selectedUser) {
        updateTierMutation.mutate(
          { auth0Sub: selectedUser.auth0Sub, data: { subscriptionTier: newTier } },
          {
            onSuccess: () => {
              setShowTierPicker(false);
              setShowUserActions(false);
              setSelectedUser(null);
            },
          }
        );
      }
    },
    [selectedUser, updateTierMutation]
  );

  const handleDeactivate = useCallback(() => {
    if (selectedUser) {
      deactivateMutation.mutate(
        { auth0Sub: selectedUser.auth0Sub, data: { reason: deactivateReason || undefined } },
        {
          onSuccess: () => {
            setShowDeactivateConfirm(false);
            setShowUserActions(false);
            setDeactivateReason('');
            setSelectedUser(null);
          },
        }
      );
    }
  }, [selectedUser, deactivateReason, deactivateMutation]);

  const handleReactivate = useCallback(() => {
    if (selectedUser) {
      reactivateMutation.mutate(selectedUser.auth0Sub, {
        onSuccess: () => {
          setShowUserActions(false);
          setSelectedUser(null);
        },
      });
    }
  }, [selectedUser, reactivateMutation]);

  const handleEditClick = useCallback(() => {
    if (selectedUser) {
      setEditEmail(selectedUser.email);
      setEditDisplayName(selectedUser.displayName || '');
      setShowUserActions(false);
      setShowEditModal(true);
    }
  }, [selectedUser]);

  const handleEditConfirm = useCallback(() => {
    if (selectedUser) {
      const updates: { email?: string; displayName?: string } = {};
      if (editEmail !== selectedUser.email) {
        updates.email = editEmail;
      }
      if (editDisplayName !== (selectedUser.displayName || '')) {
        updates.displayName = editDisplayName;
      }
      if (Object.keys(updates).length > 0) {
        updateProfileMutation.mutate(
          { auth0Sub: selectedUser.auth0Sub, data: updates },
          {
            onSuccess: () => {
              setShowEditModal(false);
              setEditEmail('');
              setEditDisplayName('');
              setSelectedUser(null);
            },
          }
        );
      }
    }
  }, [selectedUser, editEmail, editDisplayName, updateProfileMutation]);

  const handleEditCancel = useCallback(() => {
    setShowEditModal(false);
    setEditEmail('');
    setEditDisplayName('');
    setSelectedUser(null);
  }, []);

  const handlePromoteClick = useCallback(() => {
    setPromoteRole('admin');
    setShowUserActions(false);
    setShowPromoteModal(true);
  }, []);

  const handlePromoteConfirm = useCallback(() => {
    if (selectedUser) {
      promoteToAdminMutation.mutate(
        { auth0Sub: selectedUser.auth0Sub, data: { role: promoteRole } },
        {
          onSuccess: () => {
            setShowPromoteModal(false);
            setPromoteRole('admin');
            setSelectedUser(null);
          },
        }
      );
    }
  }, [selectedUser, promoteRole, promoteToAdminMutation]);

  const handlePromoteCancel = useCallback(() => {
    setShowPromoteModal(false);
    setPromoteRole('admin');
    setSelectedUser(null);
  }, []);

  const handleHardDeleteClick = useCallback(() => {
    setShowUserActions(false);
    setShowHardDeleteModal(true);
  }, []);

  const handleHardDeleteConfirm = useCallback(() => {
    if (selectedUser && hardDeleteConfirmText === 'DELETE') {
      hardDeleteMutation.mutate(
        { auth0Sub: selectedUser.auth0Sub, reason: hardDeleteReason || undefined },
        {
          onSuccess: () => {
            setShowHardDeleteModal(false);
            setHardDeleteReason('');
            setHardDeleteConfirmText('');
            setSelectedUser(null);
          },
        }
      );
    }
  }, [selectedUser, hardDeleteReason, hardDeleteConfirmText, hardDeleteMutation]);

  const handleHardDeleteCancel = useCallback(() => {
    setShowHardDeleteModal(false);
    setHardDeleteReason('');
    setHardDeleteConfirmText('');
    setSelectedUser(null);
  }, []);

  const handleLoadMore = useCallback(() => {
    setParams(prev => ({ ...prev, page: (prev.page || 1) + 1 }));
  }, []);

  // Loading state
  if (adminLoading) {
    return (
      <MobileContainer>
        <div className="flex items-center justify-center min-h-[400px]">
          <div className="text-center">
            <div className="text-slate-500 mb-2">Loading admin access...</div>
            <div className="animate-spin rounded-full h-8 w-8 border-b-2 border-blue-600 mx-auto" />
          </div>
        </div>
      </MobileContainer>
    );
  }

  // Not admin redirect
  if (!isAdmin) {
    return <Navigate to="/garage/settings" replace />;
  }

  const users = data?.users || [];
  const total = data?.total || 0;
  const hasMore = users.length < total;

  return (
    <MobileContainer>
      <div className="space-y-4 pb-20 p-4">
        {/* Header */}
        <div className="text-center mb-6">
          <h1 className="text-2xl font-bold text-slate-800 dark:text-avus">User Management</h1>
          <div className="flex justify-center gap-4 mt-3">
            <div className="bg-blue-50 dark:bg-blue-900/30 px-4 py-2 rounded-lg">
              <p className="text-xl font-bold text-blue-700 dark:text-blue-400">{statsData?.totalUsers ?? total}</p>
              <p className="text-xs text-blue-600 dark:text-blue-300">Users</p>
            </div>
            <div className="bg-green-50 dark:bg-green-900/30 px-4 py-2 rounded-lg">
              <p className="text-xl font-bold text-green-700 dark:text-green-400">{statsData?.totalVehicles ?? 0}</p>
              <p className="text-xs text-green-600 dark:text-green-300">Vehicles</p>
            </div>
          </div>
        </div>

        {/* Search Bar */}
        <GlassCard padding="sm">
          <div className="flex gap-2">
            <div className="flex-1 relative">
              <input
                type="text"
                placeholder="Search by email or name..."
                value={searchInput}
                onChange={(e) => setSearchInput(e.target.value)}
                onKeyPress={(e) => e.key === 'Enter' && handleSearch()}
                className="w-full px-4 py-3 rounded-lg border border-slate-200 dark:border-silverstone dark:bg-scuro dark:text-avus focus:outline-none focus:ring-2 focus:ring-blue-500 min-h-[44px]"
              />
              {searchInput && (
                <button
                  onClick={handleClearSearch}
                  className="absolute right-3 top-1/2 -translate-y-1/2 text-slate-400"
                >
                  <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M6 18L18 6M6 6l12 12" />
                  </svg>
                </button>
              )}
            </div>
            <button
              onClick={handleSearch}
              className="px-4 py-3 bg-blue-600 text-white rounded-lg font-medium min-h-[44px]"
            >
              Search
            </button>
          </div>

          {/* Filter Toggle */}
          <button
            onClick={() => setShowFilters(!showFilters)}
            className="mt-3 text-blue-600 text-sm font-medium flex items-center gap-1 min-h-[44px]"
          >
            <svg className={`w-4 h-4 transition-transform ${showFilters ? 'rotate-180' : ''}`} fill="none" stroke="currentColor" viewBox="0 0 24 24">
              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 9l-7 7-7-7" />
            </svg>
            {showFilters ? 'Hide Filters' : 'Show Filters'}
          </button>

          {/* Filters */}
          {showFilters && (
            <div className="mt-3 pt-3 border-t border-slate-200 space-y-3">
              {/* Tier Filter */}
              <div>
                <label className="text-sm font-medium text-slate-600 block mb-1">Tier</label>
                <select
                  value={params.tier || ''}
                  onChange={(e) => handleTierFilterChange(e.target.value as SubscriptionTier | '')}
                  className="w-full px-3 py-2 rounded-lg border border-slate-200 dark:border-silverstone dark:bg-scuro dark:text-avus min-h-[44px]"
                >
                  <option value="">All Tiers</option>
                  <option value="free">Free</option>
                  <option value="pro">Pro</option>
                  <option value="enterprise">Enterprise</option>
                </select>
              </div>

              {/* Status Filter */}
              <div>
                <label className="text-sm font-medium text-slate-600 block mb-1">Status</label>
                <select
                  value={params.status || 'all'}
                  onChange={(e) => handleStatusFilterChange(e.target.value as 'active' | 'deactivated' | 'all')}
                  className="w-full px-3 py-2 rounded-lg border border-slate-200 dark:border-silverstone dark:bg-scuro dark:text-avus min-h-[44px]"
                >
                  <option value="all">All</option>
                  <option value="active">Active</option>
                  <option value="deactivated">Deactivated</option>
                </select>
              </div>
            </div>
          )}
        </GlassCard>

        {/* Loading State */}
        {isLoading && users.length === 0 && (
          <div className="flex items-center justify-center py-8">
            <div className="animate-spin rounded-full h-8 w-8 border-b-2 border-blue-600" />
          </div>
        )}

        {/* Error State */}
        {error && (
          <GlassCard padding="md">
            <div className="text-center text-red-600">
              <p>Failed to load users. Please try again.</p>
              <button
                onClick={() => refetch()}
                className="mt-2 text-blue-600 font-medium min-h-[44px]"
              >
                Retry
              </button>
            </div>
          </GlassCard>
        )}

        {/* Empty State */}
        {!isLoading && !error && users.length === 0 && (
          <GlassCard padding="md">
            <div className="text-center text-slate-500">
              <p>No users found matching your criteria.</p>
            </div>
          </GlassCard>
        )}

        {/* User List */}
        {users.length > 0 && (
          <div className="space-y-3">
            {users.map((user) => (
              <GlassCard key={user.auth0Sub} padding="md">
                <button
                  onClick={() => handleUserClick(user)}
                  className="w-full text-left min-h-[44px]"
                  style={{ opacity: user.deactivatedAt ? 0.6 : 1 }}
                >
                  <div className="flex items-start justify-between">
                    <div className="flex-1 min-w-0">
                      <p className="font-medium text-slate-800 dark:text-avus truncate">{user.email}</p>
                      {user.displayName && (
                        <p className="text-sm text-slate-500 dark:text-silverstone truncate">{user.displayName}</p>
                      )}
                      <div className="flex flex-wrap gap-2 mt-2">
                        <TierBadge tier={user.subscriptionTier} />
                        <VehicleCountBadge
                          count={user.vehicleCount}
                          onClick={user.vehicleCount > 0 ? () => setExpandedUserId(
                            expandedUserId === user.auth0Sub ? null : user.auth0Sub
                          ) : undefined}
                        />
                        <StatusBadge active={!user.deactivatedAt} />
                        {user.isAdmin && (
                          <span className="px-2 py-1 rounded-full text-xs font-medium bg-amber-100 text-amber-700">
                            Admin
                          </span>
                        )}
                      </div>
                    </div>
                    <svg className="w-5 h-5 text-slate-400 flex-shrink-0 ml-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                      <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M9 5l7 7-7 7" />
                    </svg>
                  </div>
                </button>
                <UserVehiclesList
                  auth0Sub={user.auth0Sub}
                  isOpen={expandedUserId === user.auth0Sub}
                />
              </GlassCard>
            ))}

            {/* Load More */}
            {hasMore && (
              <button
                onClick={handleLoadMore}
                disabled={isLoading}
                className="w-full py-3 text-blue-600 font-medium min-h-[44px]"
              >
                {isLoading ? 'Loading...' : 'Load More'}
              </button>
            )}
          </div>
        )}
      </div>

      {/* User Actions Modal */}
      <Modal
        isOpen={showUserActions}
        onClose={() => {
          setShowUserActions(false);
          setSelectedUser(null);
        }}
        title="User Actions"
        actions={
          <button
            onClick={() => {
              setShowUserActions(false);
              setSelectedUser(null);
            }}
            className="px-4 py-2 bg-gray-200 text-gray-700 rounded-lg font-medium min-h-[44px]"
          >
            Cancel
          </button>
        }
      >
        {selectedUser && (
          <div className="space-y-3">
            <div className="text-sm text-slate-600">
              <p className="font-medium">{selectedUser.email}</p>
              <div className="flex gap-2 mt-1">
                <TierBadge tier={selectedUser.subscriptionTier} />
                <StatusBadge active={!selectedUser.deactivatedAt} />
              </div>
            </div>

            <div className="border-t border-slate-200 pt-3 space-y-2">
              <button
                onClick={handleEditClick}
                className="w-full py-3 text-left text-blue-600 font-medium min-h-[44px]"
              >
                Edit User
              </button>

              {!selectedUser.isAdmin && (
                <button
                  onClick={handlePromoteClick}
                  className="w-full py-3 text-left text-purple-600 font-medium min-h-[44px]"
                >
                  Promote to Admin
                </button>
              )}

              <button
                onClick={() => {
                  setShowUserActions(false);
                  setShowTierPicker(true);
                }}
                disabled={!!selectedUser.deactivatedAt}
                className="w-full py-3 text-left text-blue-600 font-medium disabled:text-slate-300 min-h-[44px]"
              >
                Change Subscription Tier
              </button>

              {selectedUser.deactivatedAt ? (
                <button
                  onClick={handleReactivate}
                  disabled={reactivateMutation.isPending}
                  className="w-full py-3 text-left text-green-600 font-medium disabled:opacity-50 min-h-[44px]"
                >
                  {reactivateMutation.isPending ? 'Reactivating...' : 'Reactivate User'}
                </button>
              ) : (
                <button
                  onClick={() => {
                    setShowUserActions(false);
                    setShowDeactivateConfirm(true);
                  }}
                  className="w-full py-3 text-left text-red-600 font-medium min-h-[44px]"
                >
                  Deactivate User
                </button>
              )}

              {!selectedUser.isAdmin && (
                <button
                  onClick={handleHardDeleteClick}
                  className="w-full py-3 text-left text-red-600 font-medium min-h-[44px]"
                >
                  Delete Permanently
                </button>
              )}
            </div>
          </div>
        )}
      </Modal>

      {/* Tier Picker Modal */}
      <Modal
        isOpen={showTierPicker}
        onClose={() => setShowTierPicker(false)}
        title="Change Subscription Tier"
        actions={
          <button
            onClick={() => setShowTierPicker(false)}
            className="px-4 py-2 bg-gray-200 text-gray-700 rounded-lg font-medium min-h-[44px]"
          >
            Cancel
          </button>
        }
      >
        <div className="space-y-2">
          {(['free', 'pro', 'enterprise'] as SubscriptionTier[]).map((tier) => (
            <button
              key={tier}
              onClick={() => handleTierChange(tier)}
              disabled={updateTierMutation.isPending || tier === selectedUser?.subscriptionTier}
              className={`w-full py-3 px-4 rounded-lg text-left font-medium min-h-[44px] ${
                tier === selectedUser?.subscriptionTier
                  ? 'bg-blue-100 text-blue-700'
                  : 'bg-slate-100 text-slate-700 hover:bg-slate-200'
              } disabled:opacity-50`}
            >
              {tier.charAt(0).toUpperCase() + tier.slice(1)}
              {tier === selectedUser?.subscriptionTier && ' (Current)'}
            </button>
          ))}
          {updateTierMutation.isPending && (
            <p className="text-center text-sm text-slate-500">Updating...</p>
          )}
        </div>
      </Modal>

      {/* Deactivate Confirmation Modal */}
      <Modal
        isOpen={showDeactivateConfirm}
        onClose={() => {
          setShowDeactivateConfirm(false);
          setDeactivateReason('');
        }}
        title="Deactivate User"
        actions={
          <>
            <button
              onClick={() => {
                setShowDeactivateConfirm(false);
                setDeactivateReason('');
              }}
              disabled={deactivateMutation.isPending}
              className="px-4 py-2 bg-gray-200 text-gray-700 rounded-lg font-medium min-h-[44px]"
            >
              Cancel
            </button>
            <button
              onClick={handleDeactivate}
              disabled={deactivateMutation.isPending}
              className="px-4 py-2 bg-red-600 text-white rounded-lg font-medium min-h-[44px] disabled:opacity-50"
            >
              {deactivateMutation.isPending ? 'Deactivating...' : 'Deactivate'}
            </button>
          </>
        }
      >
        <div className="space-y-3">
          <p className="text-slate-600">
            Are you sure you want to deactivate{' '}
            <strong>{selectedUser?.email}</strong>?
          </p>
          <p className="text-sm text-slate-500">
            The user will no longer be able to log in, but their data will be preserved.
          </p>
          <div>
            <label className="text-sm font-medium text-slate-600 block mb-1">
              Reason (optional)
            </label>
            <textarea
              value={deactivateReason}
              onChange={(e) => setDeactivateReason(e.target.value)}
              placeholder="Enter a reason for deactivation..."
              className="w-full px-3 py-2 rounded-lg border border-slate-200 resize-none"
              rows={2}
            />
          </div>
        </div>
      </Modal>

      {/* Edit User Modal */}
      <Modal
        isOpen={showEditModal}
        onClose={() => !updateProfileMutation.isPending && handleEditCancel()}
        title="Edit User"
        actions={
          <>
            <button
              onClick={handleEditCancel}
              disabled={updateProfileMutation.isPending}
              className="px-4 py-2 bg-gray-200 text-gray-700 rounded-lg font-medium min-h-[44px]"
            >
              Cancel
            </button>
            <button
              onClick={handleEditConfirm}
              disabled={
                updateProfileMutation.isPending ||
                (editEmail === selectedUser?.email && editDisplayName === (selectedUser?.displayName || ''))
              }
              className="px-4 py-2 bg-blue-600 text-white rounded-lg font-medium min-h-[44px] disabled:opacity-50"
            >
              {updateProfileMutation.isPending ? 'Saving...' : 'Save'}
            </button>
          </>
        }
      >
        <div className="space-y-3">
          <div>
            <label className="text-sm font-medium text-slate-600 block mb-1">Email</label>
            <input
              type="email"
              value={editEmail}
              onChange={(e) => setEditEmail(e.target.value)}
              className="w-full px-3 py-2 rounded-lg border border-slate-200 min-h-[44px]"
            />
          </div>
          <div>
            <label className="text-sm font-medium text-slate-600 block mb-1">Display Name</label>
            <input
              type="text"
              value={editDisplayName}
              onChange={(e) => setEditDisplayName(e.target.value)}
              placeholder="Enter display name..."
              className="w-full px-3 py-2 rounded-lg border border-slate-200 min-h-[44px]"
            />
          </div>
        </div>
      </Modal>

      {/* Promote to Admin Modal */}
      <Modal
        isOpen={showPromoteModal}
        onClose={() => !promoteToAdminMutation.isPending && handlePromoteCancel()}
        title="Promote to Admin"
        actions={
          <>
            <button
              onClick={handlePromoteCancel}
              disabled={promoteToAdminMutation.isPending}
              className="px-4 py-2 bg-gray-200 text-gray-700 rounded-lg font-medium min-h-[44px]"
            >
              Cancel
            </button>
            <button
              onClick={handlePromoteConfirm}
              disabled={promoteToAdminMutation.isPending}
              className="px-4 py-2 bg-purple-600 text-white rounded-lg font-medium min-h-[44px] disabled:opacity-50"
            >
              {promoteToAdminMutation.isPending ? 'Promoting...' : 'Promote'}
            </button>
          </>
        }
      >
        <div className="space-y-3">
          <p className="text-slate-600">
            Promote <strong>{selectedUser?.email}</strong> to an administrator role.
          </p>
          <div>
            <label className="text-sm font-medium text-slate-600 block mb-1">Admin Role</label>
            <select
              value={promoteRole}
              onChange={(e) => setPromoteRole(e.target.value as 'admin' | 'super_admin')}
              className="w-full px-3 py-2 rounded-lg border border-slate-200 min-h-[44px]"
            >
              <option value="admin">Admin</option>
              <option value="super_admin">Super Admin</option>
            </select>
          </div>
          <p className="text-sm text-slate-500">
            Admins can manage users, catalog data, and view audit logs.
            Super Admins have additional permissions to manage other administrators.
          </p>
        </div>
      </Modal>

      {/* Hard Delete Confirmation Modal */}
      <Modal
        isOpen={showHardDeleteModal}
        onClose={() => !hardDeleteMutation.isPending && handleHardDeleteCancel()}
        title="Permanently Delete User"
        actions={
          <>
            <button
              onClick={handleHardDeleteCancel}
              disabled={hardDeleteMutation.isPending}
              className="px-4 py-2 bg-gray-200 text-gray-700 rounded-lg font-medium min-h-[44px]"
            >
              Cancel
            </button>
            <button
              onClick={handleHardDeleteConfirm}
              disabled={hardDeleteMutation.isPending || hardDeleteConfirmText !== 'DELETE'}
              className="px-4 py-2 bg-red-600 text-white rounded-lg font-medium min-h-[44px] disabled:opacity-50"
            >
              {hardDeleteMutation.isPending ? 'Deleting...' : 'Delete'}
            </button>
          </>
        }
      >
        <div className="space-y-4">
          <div className="bg-red-50 border border-red-200 rounded-lg p-3">
            <p className="text-sm font-semibold text-red-800">
              Warning: This action cannot be undone!
            </p>
            <p className="text-sm text-red-700 mt-1">
              All user data will be permanently deleted, including vehicles, fuel logs,
              maintenance records, and documents.
            </p>
          </div>

          <p className="text-slate-600">
            Are you sure you want to permanently delete{' '}
            <strong>{selectedUser?.email}</strong>?
          </p>

          <div>
            <label className="text-sm font-medium text-slate-600 block mb-1">
              Reason for deletion
            </label>
            <textarea
              value={hardDeleteReason}
              onChange={(e) => setHardDeleteReason(e.target.value)}
              placeholder="GDPR request, user request, etc..."
              className="w-full px-3 py-2 rounded-lg border border-slate-200 resize-none min-h-[60px]"
              rows={2}
            />
          </div>

          <div>
            <label className="text-sm font-medium text-slate-600 block mb-1">
              Type <strong>DELETE</strong> to confirm
            </label>
            <input
              type="text"
              value={hardDeleteConfirmText}
              onChange={(e) => setHardDeleteConfirmText(e.target.value.toUpperCase())}
              placeholder="Type DELETE"
              className={`w-full px-3 py-2 rounded-lg border min-h-[44px] ${
                hardDeleteConfirmText && hardDeleteConfirmText !== 'DELETE'
                  ? 'border-red-500'
                  : 'border-slate-200'
              }`}
              style={{ fontSize: '16px' }}
            />
            {hardDeleteConfirmText && hardDeleteConfirmText !== 'DELETE' && (
              <p className="text-sm text-red-500 mt-1">Please type DELETE exactly</p>
            )}
          </div>
        </div>
      </Modal>
    </MobileContainer>
  );
};