import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
import {
  authApi,
  chatApi,
  knowledgeApi,
  marketApi,
  imBotApi,
  profileApi,
  tokenApi,
  type TokenOverview,
} from '@/api/client';

// ─── Auth ───────────────────────────────────────────────────────────────────────

export function useLogin() {
  const qc = useQueryClient();
  return useMutation({
    mutationFn: (data: { username: string; password: string }) => authApi.login(data),
    onSuccess: (res) => {
      localStorage.setItem('auth_token', res.access_token);
      qc.invalidateQueries({ queryKey: ['auth', 'me'] });
    },
  });
}

export function useCurrentUser() {
  return useQuery({
    queryKey: ['auth', 'me'],
    queryFn: authApi.me,
    retry: false,
    enabled: !!localStorage.getItem('auth_token'),
  });
}

// ─── Chat ────────────────────────────────────────────────────────────────────────

export function useConversations() {
  return useQuery({
    queryKey: ['chat', 'conversations'],
    queryFn: chatApi.listConversations,
  });
}

export function useMessages(convId: string | null) {
  return useQuery({
    queryKey: ['chat', 'messages', convId],
    queryFn: () => chatApi.getMessages(convId!),
    enabled: !!convId,
  });
}

export function useCreateConversation() {
  const qc = useQueryClient();
  return useMutation({
    mutationFn: (data: { title?: string; model?: string }) => chatApi.createConversation(data),
    onSuccess: () => qc.invalidateQueries({ queryKey: ['chat', 'conversations'] }),
  });
}

export function useSendMessage(convId: string) {
  const qc = useQueryClient();
  return useMutation({
    mutationFn: (data: { content: string; model?: string }) => chatApi.sendMessage(convId, data),
    onSuccess: () => qc.invalidateQueries({ queryKey: ['chat', 'messages', convId] }),
  });
}

export function useDeleteConversation() {
  const qc = useQueryClient();
  return useMutation({
    mutationFn: (id: string) => chatApi.deleteConversation(id),
    onSuccess: () => qc.invalidateQueries({ queryKey: ['chat', 'conversations'] }),
  });
}

export function useModels() {
  return useQuery({
    queryKey: ['chat', 'models'],
    queryFn: chatApi.getModels,
  });
}

// ─── Knowledge ───────────────────────────────────────────────────────────────────

export function useKnowledgeBases() {
  return useQuery({
    queryKey: ['knowledge', 'bases'],
    queryFn: knowledgeApi.listBases,
  });
}

export function useCreateKnowledgeBase() {
  const qc = useQueryClient();
  return useMutation({
    mutationFn: (data: { name: string; description?: string }) => knowledgeApi.createBase(data),
    onSuccess: () => qc.invalidateQueries({ queryKey: ['knowledge', 'bases'] }),
  });
}

export function useDeleteKnowledgeBase() {
  const qc = useQueryClient();
  return useMutation({
    mutationFn: (id: string) => knowledgeApi.deleteBase(id),
    onSuccess: () => qc.invalidateQueries({ queryKey: ['knowledge', 'bases'] }),
  });
}

export function useKnowledgeSearch(baseId: string | null, query: string) {
  return useQuery({
    queryKey: ['knowledge', 'search', baseId, query],
    queryFn: () => knowledgeApi.search(baseId!, query),
    enabled: !!baseId && query.length > 0,
  });
}

// ─── Market / Apps ──────────────────────────────────────────────────────────────

// Backend list endpoints may return a bare array, `{data:[...]}`, or an error
// object. Coerce to a real array so consumers can always call .slice/.map/.filter.
function asArray<T>(v: unknown): T[] {
  if (Array.isArray(v)) return v as T[];
  if (v && typeof v === 'object' && Array.isArray((v as any).data)) return (v as any).data;
  if (v && typeof v === 'object' && Array.isArray((v as any).items)) return (v as any).items;
  return [];
}

export function useMarketApps() {
  return useQuery({
    queryKey: ['market', 'apps'],
    queryFn: marketApi.listApps,
    select: (d: unknown) => asArray(d),
  });
}

export function useMyApps() {
  return useQuery({
    queryKey: ['market', 'my-apps'],
    queryFn: marketApi.getMyApps,
    select: (d: unknown) => asArray(d),
  });
}

export function useInstallApp() {
  const qc = useQueryClient();
  return useMutation({
    mutationFn: (appId: string) => marketApi.installApp(appId),
    onSuccess: () => {
      qc.invalidateQueries({ queryKey: ['market', 'my-apps'] });
      qc.invalidateQueries({ queryKey: ['market', 'apps'] });
    },
  });
}

// ─── IM Bot ──────────────────────────────────────────────────────────────────────

export function useImBotStatus() {
  return useQuery({
    queryKey: ['im-bot', 'status'],
    queryFn: imBotApi.getStatus,
    refetchInterval: 30000, // poll every 30s
  });
}

export function useImBotQRCode() {
  return useQuery({
    queryKey: ['im-bot', 'qrcode'],
    queryFn: imBotApi.getQRCode,
    enabled: false, // only on demand
  });
}

export function useDisconnectBot() {
  const qc = useQueryClient();
  return useMutation({
    mutationFn: () => imBotApi.disconnect(),
    onSuccess: () => qc.invalidateQueries({ queryKey: ['im-bot', 'status'] }),
  });
}

// ─── Profile ─────────────────────────────────────────────────────────────────────

export function useProfile() {
  return useQuery({
    queryKey: ['profile'],
    queryFn: profileApi.get,
  });
}

export function useUpdateProfile() {
  const qc = useQueryClient();
  return useMutation({
    mutationFn: (data: Parameters<typeof profileApi.update>[0]) => profileApi.update(data),
    onSuccess: () => qc.invalidateQueries({ queryKey: ['profile'] }),
  });
}

export function useProfileBalance() {
  return useQuery({
    queryKey: ['profile', 'balance'],
    queryFn: profileApi.getBalance,
  });
}

export function useProfileMembership() {
  return useQuery({
    queryKey: ['profile', 'membership'],
    queryFn: profileApi.getMembership,
  });
}

export function useProfileLoginLogs(page = 1, page_size = 10) {
  return useQuery({
    queryKey: ['profile', 'login-logs', page, page_size],
    queryFn: () => profileApi.getLoginLogs(page, page_size),
  });
}

export function useProfileApiKeys() {
  return useQuery({
    queryKey: ['profile', 'api-keys'],
    queryFn: profileApi.getApiKeys,
  });
}

export function useProfilePurchasedApps() {
  return useQuery({
    queryKey: ['profile', 'purchased-apps'],
    queryFn: profileApi.getPurchasedApps,
  });
}

// ─── Profile 写操作 ─────────────────────────────────────────────────────────────

export function useUpdateProfilePassword() {
  return useMutation({
    mutationFn: (data: { old_password: string; new_password: string }) =>
      profileApi.updatePassword(data),
  });
}

export function useCreateApiKey() {
  const qc = useQueryClient();
  return useMutation({
    mutationFn: (name: string) => profileApi.createApiKey(name),
    onSuccess: () => qc.invalidateQueries({ queryKey: ['profile', 'api-keys'] }),
  });
}

export function useUpdateApiKey() {
  const qc = useQueryClient();
  return useMutation({
    mutationFn: ({ keyId, status }: { keyId: string; status: 'enabled' | 'disabled' | 'revoked' }) =>
      profileApi.updateApiKey(keyId, status),
    onSuccess: () => qc.invalidateQueries({ queryKey: ['profile', 'api-keys'] }),
  });
}

// ─── Token 驾驶舱 ─────────────────────────────────────────────────────────────────

// Landing hero still shows a few headline numbers; reuse the real token overview
// so the homepage never ships fake/mock values.
export function useDashboardStats() {
  return useQuery({
    queryKey: ['token', 'overview'],
    queryFn: tokenApi.getOverview,
    select: (d: TokenOverview) => ({
      active_users: d.today_apps,
      today_conversations: d.today_apps,
      skill_count: d.total_used,
      revenue: d.balance,
      user_change: '',
      conv_change: '',
    }),
  });
}

export function useTokenOverview() {
  return useQuery({
    queryKey: ['token', 'overview'],
    queryFn: tokenApi.getOverview,
    refetchInterval: 60000, // 每分钟刷新一次概览
  });
}

export function useTokenRankings() {
  return useQuery({
    queryKey: ['token', 'rankings'],
    queryFn: tokenApi.getRankings,
  });
}

export function useTokenBalance() {
  return useQuery({
    queryKey: ['token', 'balance'],
    queryFn: tokenApi.getBalance,
  });
}

export function useTokenLogs(params: {
  start_date?: string;
  end_date?: string;
  model_id?: string;
  app_type?: string;
  page?: number;
  page_size?: number;
}) {
  return useQuery({
    queryKey: ['token', 'logs', params],
    queryFn: () => tokenApi.getLogs(params),
    placeholderData: (prev) => prev, // 翻页时保留旧数据，避免闪烁
  });
}