import axios from "axios";
import type {
  AlignmentData,
  Bill,
  BillAction,
  BillDetail,
  BillVote,
  BriefSchema,
  Collection,
  CollectionDetail,
  DashboardData,
  Follow,
  Member,
  MemberTrendScore,
  MemberNewsArticle,
  NewsArticle,
  NotificationEvent,
  NotificationSettings,
  NotificationSettingsUpdate,
  PaginatedResponse,
  SettingsData,
  TrendScore,
} from "./types";

const apiClient = axios.create({
  baseURL: process.env.NEXT_PUBLIC_API_URL || "",
  timeout: 30000,
});

// Attach JWT from localStorage on every request
apiClient.interceptors.request.use((config) => {
  if (typeof window !== "undefined") {
    try {
      const stored = localStorage.getItem("pocketveto-auth");
      if (stored) {
        const { state } = JSON.parse(stored);
        if (state?.token) {
          config.headers.Authorization = `Bearer ${state.token}`;
        }
      }
    } catch {
      // ignore parse errors
    }
  }
  return config;
});

interface AuthUser {
  id: number;
  email: string;
  is_admin: boolean;
  notification_prefs: Record<string, unknown>;
  created_at: string;
}

interface TokenResponse {
  access_token: string;
  token_type: string;
  user: AuthUser;
}

// Auth
export const authAPI = {
  register: (email: string, password: string) =>
    apiClient.post<TokenResponse>("/api/auth/register", { email, password }).then((r) => r.data),
  login: (email: string, password: string) =>
    apiClient.post<TokenResponse>("/api/auth/login", { email, password }).then((r) => r.data),
  me: () =>
    apiClient.get<AuthUser>("/api/auth/me").then((r) => r.data),
};

// Bills
export const billsAPI = {
  list: (params?: Record<string, unknown>) =>
    apiClient.get<PaginatedResponse<Bill>>("/api/bills", { params }).then((r) => r.data),
  get: (id: string) =>
    apiClient.get<BillDetail>(`/api/bills/${id}`).then((r) => r.data),
  getActions: (id: string) =>
    apiClient.get<BillAction[]>(`/api/bills/${id}/actions`).then((r) => r.data),
  getNews: (id: string) =>
    apiClient.get<NewsArticle[]>(`/api/bills/${id}/news`).then((r) => r.data),
  getTrend: (id: string, days?: number) =>
    apiClient.get<TrendScore[]>(`/api/bills/${id}/trend`, { params: { days } }).then((r) => r.data),
  getVotes: (id: string) =>
    apiClient.get<BillVote[]>(`/api/bills/${id}/votes`).then((r) => r.data),
  generateDraft: (id: string, body: {
    stance: string;
    recipient: string;
    tone: string;
    selected_points: string[];
    include_citations: boolean;
    zip_code?: string;
    rep_name?: string;
  }) =>
    apiClient.post<{ draft: string }>(`/api/bills/${id}/draft-letter`, body).then((r) => r.data),
};

// Collections
export const collectionsAPI = {
  list: () =>
    apiClient.get<Collection[]>("/api/collections").then((r) => r.data),
  create: (name: string, is_public: boolean) =>
    apiClient.post<Collection>("/api/collections", { name, is_public }).then((r) => r.data),
  get: (id: number) =>
    apiClient.get<CollectionDetail>(`/api/collections/${id}`).then((r) => r.data),
  update: (id: number, data: { name?: string; is_public?: boolean }) =>
    apiClient.patch<Collection>(`/api/collections/${id}`, data).then((r) => r.data),
  delete: (id: number) => apiClient.delete(`/api/collections/${id}`),
  addBill: (id: number, bill_id: string) =>
    apiClient.post(`/api/collections/${id}/bills/${bill_id}`).then((r) => r.data),
  removeBill: (id: number, bill_id: string) =>
    apiClient.delete(`/api/collections/${id}/bills/${bill_id}`),
  getByShareToken: (token: string) =>
    apiClient.get<CollectionDetail>(`/api/collections/share/${token}`).then((r) => r.data),
};

// Share (public)
export const shareAPI = {
  getBrief: (token: string) =>
    apiClient.get<{ brief: BriefSchema; bill: Bill }>(`/api/share/brief/${token}`).then((r) => r.data),
  getCollection: (token: string) =>
    apiClient.get<CollectionDetail>(`/api/share/collection/${token}`).then((r) => r.data),
};

// Notes
export const notesAPI = {
  get: (billId: string) =>
    apiClient.get<import("./types").BillNote>(`/api/notes/${billId}`).then((r) => r.data),
  upsert: (billId: string, content: string, pinned: boolean) =>
    apiClient.put<import("./types").BillNote>(`/api/notes/${billId}`, { content, pinned }).then((r) => r.data),
  delete: (billId: string) =>
    apiClient.delete(`/api/notes/${billId}`),
};

// Members
export const membersAPI = {
  list: (params?: Record<string, unknown>) =>
    apiClient.get<PaginatedResponse<Member>>("/api/members", { params }).then((r) => r.data),
  get: (id: string) =>
    apiClient.get<Member>(`/api/members/${id}`).then((r) => r.data),
  byZip: (zip: string) =>
    apiClient.get<Member[]>(`/api/members/by-zip/${zip}`).then((r) => r.data),
  getBills: (id: string, params?: Record<string, unknown>) =>
    apiClient.get<PaginatedResponse<Bill>>(`/api/members/${id}/bills`, { params }).then((r) => r.data),
  getTrend: (id: string, days?: number) =>
    apiClient.get<MemberTrendScore[]>(`/api/members/${id}/trend`, { params: { days } }).then((r) => r.data),
  getNews: (id: string) =>
    apiClient.get<MemberNewsArticle[]>(`/api/members/${id}/news`).then((r) => r.data),
};

// Follows
export const followsAPI = {
  list: () =>
    apiClient.get<Follow[]>("/api/follows").then((r) => r.data),
  add: (follow_type: string, follow_value: string) =>
    apiClient.post<Follow>("/api/follows", { follow_type, follow_value }).then((r) => r.data),
  remove: (id: number) =>
    apiClient.delete(`/api/follows/${id}`),
  updateMode: (id: number, mode: string) =>
    apiClient.patch<Follow>(`/api/follows/${id}/mode`, { follow_mode: mode }).then((r) => r.data),
};

// Dashboard
export const dashboardAPI = {
  get: () =>
    apiClient.get<DashboardData>("/api/dashboard").then((r) => r.data),
};

// Search
export const searchAPI = {
  search: (q: string) =>
    apiClient.get<{ bills: Bill[]; members: Member[] }>("/api/search", { params: { q } }).then((r) => r.data),
};

export interface LLMModel {
  id: string;
  name: string;
}

// Settings
export const settingsAPI = {
  get: () =>
    apiClient.get<SettingsData>("/api/settings").then((r) => r.data),
  update: (key: string, value: string) =>
    apiClient.put("/api/settings", { key, value }).then((r) => r.data),
  testLLM: () =>
    apiClient.post("/api/settings/test-llm").then((r) => r.data),
  listModels: (provider: string) =>
    apiClient.get<{ models: LLMModel[]; error?: string }>("/api/settings/llm-models", { params: { provider } }).then((r) => r.data),
};

export interface AdminUser {
  id: number;
  email: string;
  is_admin: boolean;
  follow_count: number;
  created_at: string;
}

export interface ApiHealthResult {
  status: "ok" | "error" | "skipped";
  detail: string;
  latency_ms?: number;
}

export interface ApiHealth {
  congress_gov: ApiHealthResult;
  govinfo: ApiHealthResult;
  newsapi: ApiHealthResult;
  google_news: ApiHealthResult;
  rep_lookup: ApiHealthResult;
  redis: ApiHealthResult;
  smtp: ApiHealthResult;
  pytrends: ApiHealthResult;
}

export interface AnalysisStats {
  total_bills: number;
  docs_fetched: number;
  briefs_generated: number;
  full_briefs: number;
  amendment_briefs: number;
  uncited_briefs: number;
  no_text_bills: number;
  pending_llm: number;
  bills_missing_sponsor: number;
  bills_missing_metadata: number;
  bills_missing_actions: number;
  unlabeled_briefs: number;
  remaining: number;
  total_members: number;
  house_count: number;
  senate_count: number;
  members_missing_chamber: number;
  total_votes: number;
  stanced_bills_total: number;
  stanced_bills_with_votes: number;
}

export interface NotificationTestResult {
  status: "ok" | "error";
  detail: string;
  event_count?: number;
}

// Notifications
export const notificationsAPI = {
  getSettings: () =>
    apiClient.get<NotificationSettings>("/api/notifications/settings").then((r) => r.data),
  updateSettings: (data: NotificationSettingsUpdate) =>
    apiClient.put<NotificationSettings>("/api/notifications/settings", data).then((r) => r.data),
  resetRssToken: () =>
    apiClient.post<NotificationSettings>("/api/notifications/settings/rss-reset").then((r) => r.data),
  testNtfy: (data: {
    ntfy_topic_url: string;
    ntfy_auth_method: string;
    ntfy_token: string;
    ntfy_username: string;
    ntfy_password: string;
  }) =>
    apiClient.post<NotificationTestResult>("/api/notifications/test/ntfy", data).then((r) => r.data),
  testRss: () =>
    apiClient.post<NotificationTestResult>("/api/notifications/test/rss").then((r) => r.data),
  testEmail: () =>
    apiClient.post<NotificationTestResult>("/api/notifications/test/email").then((r) => r.data),
  testFollowMode: (mode: string, event_type: string) =>
    apiClient.post<NotificationTestResult>("/api/notifications/test/follow-mode", { mode, event_type }).then((r) => r.data),
  getHistory: () =>
    apiClient.get<NotificationEvent[]>("/api/notifications/history").then((r) => r.data),
};

// Admin
export const adminAPI = {
  // Stats
  getStats: () =>
    apiClient.get<AnalysisStats>("/api/admin/stats").then((r) => r.data),
  // Users
  listUsers: () =>
    apiClient.get<AdminUser[]>("/api/admin/users").then((r) => r.data),
  deleteUser: (id: number) =>
    apiClient.delete(`/api/admin/users/${id}`),
  toggleAdmin: (id: number) =>
    apiClient.patch<AdminUser>(`/api/admin/users/${id}/toggle-admin`).then((r) => r.data),
  // Tasks
  triggerPoll: () =>
    apiClient.post("/api/admin/trigger-poll").then((r) => r.data),
  triggerMemberSync: () =>
    apiClient.post("/api/admin/trigger-member-sync").then((r) => r.data),
  triggerTrendScores: () =>
    apiClient.post("/api/admin/trigger-trend-scores").then((r) => r.data),
  triggerFetchNews: () =>
    apiClient.post("/api/admin/trigger-fetch-news").then((r) => r.data),
  triggerFetchVotes: () =>
    apiClient.post("/api/admin/trigger-fetch-votes").then((r) => r.data),
  triggerMemberTrendScores: () =>
    apiClient.post("/api/admin/trigger-member-trend-scores").then((r) => r.data),
  backfillSponsors: () =>
    apiClient.post("/api/admin/backfill-sponsors").then((r) => r.data),
  backfillCitations: () =>
    apiClient.post("/api/admin/backfill-citations").then((r) => r.data),
  triggerFetchActions: () =>
    apiClient.post("/api/admin/trigger-fetch-actions").then((r) => r.data),
  backfillAllActions: () =>
    apiClient.post("/api/admin/backfill-all-actions").then((r) => r.data),
  backfillMetadata: () =>
    apiClient.post("/api/admin/backfill-metadata").then((r) => r.data),
  backfillLabels: () =>
    apiClient.post("/api/admin/backfill-labels").then((r) => r.data),
  resumeAnalysis: () =>
    apiClient.post("/api/admin/resume-analysis").then((r) => r.data),
  triggerWeeklyDigest: () =>
    apiClient.post("/api/admin/trigger-weekly-digest").then((r) => r.data),
  getApiHealth: () =>
    apiClient.get<ApiHealth>("/api/admin/api-health").then((r) => r.data),
  getTaskStatus: (taskId: string) =>
    apiClient.get(`/api/admin/task-status/${taskId}`).then((r) => r.data),
  getNewsApiQuota: () =>
    apiClient.get<{ remaining: number; limit: number }>("/api/admin/newsapi-quota").then((r) => r.data),
  clearGnewsCache: () =>
    apiClient.post<{ cleared: number }>("/api/admin/clear-gnews-cache").then((r) => r.data),
  submitLlmBatch: () =>
    apiClient.post("/api/admin/submit-llm-batch").then((r) => r.data),
  getLlmBatchStatus: () =>
    apiClient.get<{ status: string; batch_id?: string; doc_count?: number; submitted_at?: string }>(
      "/api/admin/llm-batch-status"
    ).then((r) => r.data),
  backfillCosponsors: () =>
    apiClient.post("/api/admin/backfill-cosponsors").then((r) => r.data),
  backfillCategories: () =>
    apiClient.post("/api/admin/backfill-categories").then((r) => r.data),
  calculateEffectiveness: () =>
    apiClient.post("/api/admin/calculate-effectiveness").then((r) => r.data),
};

// Alignment
export const alignmentAPI = {
  get: () =>
    apiClient.get<AlignmentData>("/api/alignment").then((r) => r.data),
};