/**
 * Admin API Hooks
 * React Query hooks for admin operations
 */

import type {
  CreateAnnouncementRequest,
  CreatePageRequest,
  CreateUserRequest,
  UpdatePageRequest,
  UpdateUserRequest,
} from '@/services/admin-api';
import * as adminApi from '@/services/admin-api';
import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query';

// ============================================================================
// Query Keys
// ============================================================================

export const adminKeys = {
  all: ['admin'] as const,
  dashboard: {
    all: ['admin', 'dashboard'] as const,
    stats: () => [...adminKeys.dashboard.all, 'stats'] as const,
    activity: () => [...adminKeys.dashboard.all, 'activity'] as const,
  },
  analytics: {
    all: ['admin', 'analytics'] as const,
    organizations: () => [...adminKeys.analytics.all, 'organizations'] as const,
    users: () => [...adminKeys.analytics.all, 'users'] as const,
    matching: () => [...adminKeys.analytics.all, 'matching'] as const,
  },
  system: {
    all: ['admin', 'system'] as const,
    health: () => [...adminKeys.system.all, 'health'] as const,
  },
  users: {
    all: ['admin', 'users'] as const,
    lists: (params?: unknown) => [...adminKeys.users.all, 'list', params] as const,
    detail: (id: string) => [...adminKeys.users.all, 'detail', id] as const,
    stats: () => [...adminKeys.users.all, 'stats'] as const,
    activity: (id: string, params?: unknown) =>
      [...adminKeys.users.all, 'activity', id, params] as const,
  },
  organizations: {
    all: ['admin', 'organizations'] as const,
    verificationQueue: (params?: unknown) =>
      [...adminKeys.organizations.all, 'verification-queue', params] as const,
    stats: () => [...adminKeys.organizations.all, 'stats'] as const,
  },
  i18n: {
    all: ['admin', 'i18n'] as const,
    translationKeys: (locale: string) =>
      [...adminKeys.i18n.all, 'translation-keys', locale] as const,
  },
  content: {
    all: ['admin', 'content'] as const,
    pages: {
      all: ['admin', 'content', 'pages'] as const,
      lists: () => [...adminKeys.content.pages.all, 'list'] as const,
      detail: (id: string) => [...adminKeys.content.pages.all, 'detail', id] as const,
    },
    announcements: {
      all: ['admin', 'content', 'announcements'] as const,
      lists: (params?: unknown) =>
        [...adminKeys.content.announcements.all, 'list', params] as const,
      detail: (id: string) => [...adminKeys.content.announcements.all, 'detail', id] as const,
    },
    media: {
      all: ['admin', 'content', 'media'] as const,
      lists: (params?: unknown) => [...adminKeys.content.media.all, 'list', params] as const,
      detail: (id: string) => [...adminKeys.content.media.all, 'detail', id] as const,
    },
  },
};

// ============================================================================
// Dashboard & Statistics
// ============================================================================

/**
 * Get dashboard statistics
 */
export function useDashboardStats() {
  return useQuery({
    queryKey: adminKeys.dashboard.stats(),
    queryFn: () => adminApi.getDashboardStats(),
    staleTime: 30000, // 30 seconds
    retry: (failureCount, error: Error) => {
      // Don't retry on 403 (Forbidden) or 401 (Unauthorized) errors
      if (error?.status === 403 || error?.status === 401) {
        return false;
      }
      // Retry up to 2 times for other errors
      return failureCount < 2;
    },
    retryDelay: (attemptIndex) => Math.min(1000 * 2 ** attemptIndex, 30000),
  });
}

/**
 * Get recent activity for admin dashboard
 */
export function useRecentActivity() {
  return useQuery({
    queryKey: adminKeys.dashboard.activity(),
    queryFn: () => adminApi.getRecentActivity(),
    staleTime: 30 * 1000,
  });
}

/**
 * Get organization statistics
 */
export function useOrganizationStats() {
  return useQuery({
    queryKey: adminKeys.analytics.organizations(),
    queryFn: () => adminApi.getOrganizationStats(),
    staleTime: 60000, // 1 minute
  });
}

/**
 * Get user activity statistics
 */
export function useUserActivityStats() {
  return useQuery({
    queryKey: adminKeys.analytics.users(),
    queryFn: () => adminApi.getUserActivityStats(),
    staleTime: 60000, // 1 minute
  });
}

/**
 * Get matching statistics
 */
export function useMatchingStats() {
  return useQuery({
    queryKey: adminKeys.analytics.matching(),
    queryFn: () => adminApi.getMatchingStats(),
    staleTime: 60000, // 1 minute
  });
}

/**
 * Get system health
 */
export function useSystemHealth() {
  return useQuery({
    queryKey: adminKeys.system.health(),
    queryFn: () => adminApi.getSystemHealth(),
    staleTime: 10000, // 10 seconds
    refetchInterval: 30000, // Refetch every 30 seconds
  });
}

// ============================================================================
// Maintenance
// ============================================================================

export const maintenanceKeys = {
  all: ['admin', 'maintenance'] as const,
  setting: () => [...maintenanceKeys.all, 'setting'] as const,
};

export function useMaintenanceSetting() {
  return useQuery({
    queryKey: maintenanceKeys.setting(),
    queryFn: () => adminApi.getMaintenance(),
    staleTime: 5000,
    retry: false,
  });
}

export function useSetMaintenance() {
  const qc = useQueryClient();
  return useMutation({
    mutationFn: (request: adminApi.MaintenanceSetting) => adminApi.setMaintenance(request),
    onSuccess: () => qc.invalidateQueries({ queryKey: maintenanceKeys.setting() }),
  });
}

// ============================================================================
// User Management
// ============================================================================

/**
 * List users
 */
export function useUsers(params?: {
  role?: string;
  isActive?: boolean;
  search?: string;
  limit?: number;
  offset?: number;
}) {
  return useQuery({
    queryKey: adminKeys.users.lists(params),
    queryFn: () => adminApi.listUsers(params),
  });
}

/**
 * Get user by ID
 */
export function useUser(id: string | null | undefined) {
  return useQuery({
    queryKey: adminKeys.users.detail(id!),
    queryFn: () => adminApi.getUser(id!),
    enabled: !!id,
  });
}

/**
 * Create user mutation
 */
export function useCreateUser() {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: (request: CreateUserRequest) => adminApi.createUser(request),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: adminKeys.users.lists() });
      queryClient.invalidateQueries({ queryKey: adminKeys.users.stats() });
    },
  });
}

/**
 * Update user mutation
 */
export function useUpdateUser() {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: ({ id, request }: { id: string; request: UpdateUserRequest }) =>
      adminApi.updateUser(id, request),
    onSuccess: (_, variables) => {
      queryClient.invalidateQueries({ queryKey: adminKeys.users.lists() });
      queryClient.invalidateQueries({ queryKey: adminKeys.users.detail(variables.id) });
      queryClient.invalidateQueries({ queryKey: adminKeys.users.stats() });
    },
  });
}

/**
 * Update user role mutation
 */
export function useUpdateUserRole() {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: ({ id, role }: { id: string; role: string }) => adminApi.updateUserRole(id, role),
    onSuccess: (_, variables) => {
      queryClient.invalidateQueries({ queryKey: adminKeys.users.lists() });
      queryClient.invalidateQueries({ queryKey: adminKeys.users.detail(variables.id) });
    },
  });
}

/**
 * Update user permissions mutation
 */
export function useUpdateUserPermissions() {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: ({ id, permissions }: { id: string; permissions: string[] }) =>
      adminApi.updateUserPermissions(id, permissions),
    onSuccess: (_, variables) => {
      queryClient.invalidateQueries({ queryKey: adminKeys.users.lists() });
      queryClient.invalidateQueries({ queryKey: adminKeys.users.detail(variables.id) });
    },
  });
}

/**
 * Deactivate user mutation
 */
export function useDeactivateUser() {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: (id: string) => adminApi.deactivateUser(id),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: adminKeys.users.lists() });
      queryClient.invalidateQueries({ queryKey: adminKeys.users.stats() });
    },
  });
}

/**
 * Get user activity log
 */
export function useUserActivity(
  id: string | null | undefined,
  params?: { limit?: number; offset?: number }
) {
  return useQuery({
    queryKey: adminKeys.users.activity(id!, params),
    queryFn: () => adminApi.getUserActivity(id!, params),
    enabled: !!id,
  });
}

/**
 * Get user statistics
 */
export function useUserStats() {
  return useQuery({
    queryKey: adminKeys.users.stats(),
    queryFn: () => adminApi.getUserStats(),
    staleTime: 60000, // 1 minute
  });
}

// ============================================================================
// Organization Verification
// ============================================================================

/**
 * Get verification queue
 */
export function useVerificationQueue(params?: {
  status?: string;
  dataType?: string;
  organizationId?: string;
}) {
  return useQuery({
    queryKey: adminKeys.organizations.verificationQueue(params),
    queryFn: () => adminApi.getVerificationQueue(params),
    staleTime: 30000, // 30 seconds
  });
}

/**
 * Verify organization mutation
 */
export function useVerifyOrganization() {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: ({ id, notes }: { id: string; notes?: string }) =>
      adminApi.verifyOrganization(id, notes),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: adminKeys.organizations.verificationQueue() });
      queryClient.invalidateQueries({ queryKey: adminKeys.organizations.stats() });
      queryClient.invalidateQueries({ queryKey: ['organizations'] });
    },
  });
}

/**
 * Reject verification mutation
 */
export function useRejectVerification() {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: ({ id, reason, notes }: { id: string; reason: string; notes?: string }) =>
      adminApi.rejectVerification(id, reason, notes),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: adminKeys.organizations.verificationQueue() });
    },
  });
}

/**
 * Bulk verify organizations mutation
 */
export function useBulkVerifyOrganizations() {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: (organizationIds: string[]) => adminApi.bulkVerifyOrganizations(organizationIds),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: adminKeys.organizations.verificationQueue() });
      queryClient.invalidateQueries({ queryKey: adminKeys.organizations.stats() });
      queryClient.invalidateQueries({ queryKey: ['organizations'] });
    },
  });
}

/**
 * Get organization statistics (admin)
 */
export function useOrganizationStatsAdmin() {
  return useQuery({
    queryKey: adminKeys.organizations.stats(),
    queryFn: () => adminApi.getOrganizationStatsAdmin(),
    staleTime: 60000, // 1 minute
  });
}

// ============================================================================
// Localization Management
// ============================================================================

/**
 * Get translation keys for a locale
 */
export function useTranslationKeys(locale: string) {
  return useQuery({
    queryKey: adminKeys.i18n.translationKeys(locale),
    queryFn: () => adminApi.getTranslationKeys(locale),
    enabled: !!locale,
  });
}

/**
 * Update UI translation mutation
 */
export function useUpdateUITranslation() {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: ({ locale, key, value }: { locale: string; key: string; value: string }) =>
      adminApi.updateUITranslation(locale, key, value),
    onSuccess: (_, variables) => {
      queryClient.invalidateQueries({ queryKey: adminKeys.i18n.translationKeys(variables.locale) });
    },
  });
}

/**
 * Bulk update UI translations mutation
 */
export function useBulkUpdateUITranslations() {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: (updates: Array<{ locale: string; key: string; value: string }>) =>
      adminApi.bulkUpdateUITranslations(updates),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: adminKeys.i18n.all });
    },
  });
}

/**
 * Auto-translate missing keys mutation
 */
export function useAutoTranslateMissing() {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: ({ sourceLocale, targetLocale }: { sourceLocale: string; targetLocale: string }) =>
      adminApi.autoTranslateMissing(sourceLocale, targetLocale),
    onSuccess: (_, variables) => {
      queryClient.invalidateQueries({
        queryKey: adminKeys.i18n.translationKeys(variables.targetLocale),
      });
    },
  });
}

/**
 * Update data translation mutation
 */
export function useUpdateDataTranslation() {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: ({
      entityType,
      entityID,
      field,
      locale,
      value,
    }: {
      entityType: string;
      entityID: string;
      field: string;
      locale: string;
      value: string;
    }) => adminApi.updateDataTranslation(entityType, entityID, field, locale, value),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: adminKeys.i18n.all });
    },
  });
}

// ============================================================================
// Content Management
// ============================================================================

/**
 * List static pages
 */
export function usePages() {
  return useQuery({
    queryKey: adminKeys.content.pages.lists(),
    queryFn: () => adminApi.listPages(),
    retry: (failureCount, error: Error) => {
      // Don't retry on 403 (Forbidden) or 401 (Unauthorized) errors
      if (error?.status === 403 || error?.status === 401) {
        return false;
      }
      // Retry up to 2 times for other errors
      return failureCount < 2;
    },
    retryDelay: (attemptIndex) => Math.min(1000 * 2 ** attemptIndex, 30000),
  });
}

/**
 * Get page by ID
 */
export function usePage(id: string | null | undefined) {
  return useQuery({
    queryKey: adminKeys.content.pages.detail(id!),
    queryFn: () => adminApi.getPage(id!),
    enabled: !!id,
  });
}

/**
 * Create page mutation
 */
export function useCreatePage() {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: (request: CreatePageRequest) => adminApi.createPage(request),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: adminKeys.content.pages.lists() });
    },
  });
}

/**
 * Update page mutation
 */
export function useUpdatePage() {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: ({ id, request }: { id: string; request: UpdatePageRequest }) =>
      adminApi.updatePage(id, request),
    onSuccess: (_, variables) => {
      queryClient.invalidateQueries({ queryKey: adminKeys.content.pages.lists() });
      queryClient.invalidateQueries({ queryKey: adminKeys.content.pages.detail(variables.id) });
    },
  });
}

/**
 * Delete page mutation
 */
export function useDeletePage() {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: (id: string) => adminApi.deletePage(id),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: adminKeys.content.pages.lists() });
    },
  });
}

/**
 * Publish page mutation
 */
export function usePublishPage() {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: (id: string) => adminApi.publishPage(id),
    onSuccess: (_, id) => {
      queryClient.invalidateQueries({ queryKey: adminKeys.content.pages.lists() });
      queryClient.invalidateQueries({ queryKey: adminKeys.content.pages.detail(id) });
    },
  });
}

/**
 * List announcements
 */
export function useAnnouncements(params?: { isActive?: boolean; priority?: string }) {
  return useQuery({
    queryKey: adminKeys.content.announcements.lists(params),
    queryFn: () => adminApi.listAnnouncements(params),
    retry: (failureCount, error: Error) => {
      // Don't retry on 403 (Forbidden) or 401 (Unauthorized) errors
      if (error?.status === 403 || error?.status === 401) {
        return false;
      }
      // Retry up to 2 times for other errors
      return failureCount < 2;
    },
    retryDelay: (attemptIndex) => Math.min(1000 * 2 ** attemptIndex, 30000),
  });
}

/**
 * Get announcement by ID
 */
export function useAnnouncement(id: string | null | undefined) {
  return useQuery({
    queryKey: adminKeys.content.announcements.detail(id!),
    queryFn: () => adminApi.getAnnouncement(id!),
    enabled: !!id,
  });
}

/**
 * Create announcement mutation
 */
export function useCreateAnnouncement() {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: (request: CreateAnnouncementRequest) => adminApi.createAnnouncement(request),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: adminKeys.content.announcements.lists() });
    },
  });
}

/**
 * Update announcement mutation
 */
export function useUpdateAnnouncement() {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: ({ id, request }: { id: string; request: Partial<CreateAnnouncementRequest> }) =>
      adminApi.updateAnnouncement(id, request),
    onSuccess: (_, variables) => {
      queryClient.invalidateQueries({ queryKey: adminKeys.content.announcements.lists() });
      queryClient.invalidateQueries({
        queryKey: adminKeys.content.announcements.detail(variables.id),
      });
    },
  });
}

/**
 * Delete announcement mutation
 */
export function useDeleteAnnouncement() {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: (id: string) => adminApi.deleteAnnouncement(id),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: adminKeys.content.announcements.lists() });
    },
  });
}

/**
 * List media assets
 */
export function useMediaAssets(params?: { type?: string; tags?: string }) {
  return useQuery({
    queryKey: adminKeys.content.media.lists(params),
    queryFn: () => adminApi.listMediaAssets(params),
    retry: (failureCount, error: Error) => {
      // Don't retry on 403 (Forbidden) or 401 (Unauthorized) errors
      if (error?.status === 403 || error?.status === 401) {
        return false;
      }
      // Retry up to 2 times for other errors
      return failureCount < 2;
    },
    retryDelay: (attemptIndex) => Math.min(1000 * 2 ** attemptIndex, 30000),
  });
}

/**
 * Get media asset by ID
 */
export function useMediaAsset(id: string | null | undefined) {
  return useQuery({
    queryKey: adminKeys.content.media.detail(id!),
    queryFn: () => adminApi.getMediaAsset(id!),
    enabled: !!id,
  });
}

/**
 * Create media asset mutation
 */
export function useCreateMediaAsset() {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: (request: {
      filename: string;
      originalName: string;
      url: string;
      type: string;
      mimeType?: string;
      size?: number;
      width?: number;
      height?: number;
      duration?: number;
      altText?: string;
      tags?: string[];
    }) => adminApi.createMediaAsset(request),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: adminKeys.content.media.lists() });
    },
  });
}

/**
 * Update media asset mutation
 */
export function useUpdateMediaAsset() {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: ({ id, request }: { id: string; request: { altText?: string; tags?: string[] } }) =>
      adminApi.updateMediaAsset(id, request),
    onSuccess: (_, variables) => {
      queryClient.invalidateQueries({ queryKey: adminKeys.content.media.lists() });
      queryClient.invalidateQueries({ queryKey: adminKeys.content.media.detail(variables.id) });
    },
  });
}

/**
 * Delete media asset mutation
 */
export function useDeleteMediaAsset() {
  const queryClient = useQueryClient();
  return useMutation({
    mutationFn: (id: string) => adminApi.deleteMediaAsset(id),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: adminKeys.content.media.lists() });
    },
  });
}