import type { Express } from "express";
import { createServer, type Server } from "http";
import cors from 'cors';
import express from 'express';
import { pool } from "../db";
import { apiLimiter, publishNotificationSSE } from "./shared";
import authRouter from "./auth.routes";
import filesRouter from "./files.routes";
import taskRouter from "./task.routes";
import chatRouter from "./chat.routes";
import automationRouter from "./automation.routes";
import adminRouter from "./admin.routes";
import messengerRouter from "./messenger.routes";
import reactionsRouter from "./reactions.routes";
import pollsRouter from "./polls.routes";
import orgConnectionsRouter from "./org-connections.routes";
import rolesRouter from "./roles.routes";
import homeRouter from "./home.routes";
import taskInboxHiddenRouter from "./task-inbox-hidden.routes";
import taskBulkRouter from "./task-bulk.routes";
import ragRouter from "./rag.routes";
import llmProvidersRouter from "./llm-providers.routes";
import errorLogsRouter from "./error-logs.routes";
import { registerBotRoutes } from "./bots.routes";
import { registerExternalRoutes } from "./external.routes";
import { registerBotApiRoutes } from "./bot-api.routes";
import { registerDataTableRoutes } from "./data-tables.routes";
import { registerDataTableSyncRoutes } from "./data-tables-sync.routes";
import { registerContentRoutes } from "./content.routes";
import { registerPushRoutes } from "./push.routes";
import { registerMcpRagRoutes } from "./mcp-rag.routes";
import { registerFieldTemplateInsertRoutes } from "./field-template-insert.routes";
import { registerFinanceRoutes } from "../finance/routes";
import { registerDi2Routes } from "../finance-di2";
import { registerDocumentRoutes } from "../documents/routes";
import { registerDashboardRoutes } from "./dashboard.routes";
import formAccessRouter from "./form-access.routes";
import formOfflineRouter from "./form-offline.routes";
import { calendarRouter } from "./calendar.routes";
import { ganttRouter } from "./gantt.routes";
import organizationSkinsRouter from "./organization-skins.routes";
import { registerSyncRoutes } from "./sync.routes";
import { registerMedScheduleRoutes } from "../medschedule/routes";
import { registerMedScheduleBotRoutes } from "../medschedule/bot.routes";
import { registerGpsRoutes } from "../gps/routes";
import { registerVpnRoutes } from "../vpn";
import { FIELD_TYPE_DEFINITIONS } from "../../shared/field-types";
export { publishNotificationSSE };

export async function registerRoutes(app: Express): Promise<Server> {
  // CORS configuration
  app.use(cors({
    origin: process.env.FRONTEND_URL || 'http://localhost:5000',
    credentials: true,
    methods: ['GET', 'POST', 'PUT', 'DELETE', 'PATCH'],
    allowedHeaders: ['Content-Type', 'Authorization']
  }));

  // Apply rate limiting
  app.use('/api', apiLimiter);

  // Health check endpoint
  app.get('/api/health', async (_req, res) => {
    const uptime = process.uptime();
    let dbStatus = 'ok';
    try {
      await pool.query('SELECT 1');
    } catch {
      dbStatus = 'error';
    }
    const status = dbStatus === 'ok' ? 'ok' : 'degraded';
    res.status(dbStatus === 'ok' ? 200 : 503).json({
      status,
      uptime: Math.floor(uptime),
      db: dbStatus,
      timestamp: new Date().toISOString(),
    });
  });

  // Field types registry (used by frontend editors)
  app.get('/api/field-types', (_req, res) => {
    res.json({ success: true, fieldTypes: FIELD_TYPE_DEFINITIONS });
  });

  // Route modules
  app.use(filesRouter);
  app.use(authRouter);
  app.use(taskBulkRouter);
  app.use(taskRouter);
  app.use(chatRouter);
  app.use(automationRouter);
  app.use(adminRouter);
  app.use(messengerRouter);
  app.use(reactionsRouter);
  app.use(pollsRouter);
  app.use(orgConnectionsRouter);
  app.use(rolesRouter);
  app.use(homeRouter);
  app.use(taskInboxHiddenRouter);
  app.use(ragRouter);
  app.use(llmProvidersRouter);
  app.use(errorLogsRouter);

  // Domain route registrations
  registerBotRoutes(app);
  registerExternalRoutes(app);
  registerBotApiRoutes(app);
  registerDataTableRoutes(app);
  registerDataTableSyncRoutes(app);
  registerContentRoutes(app);
  registerPushRoutes(app);
  registerMcpRagRoutes(app);
  registerFieldTemplateInsertRoutes(app);
  // Data-Insight2 (финансы v2) — СТРОГО перед старым модулем финансов: при совпадении путей приоритет у DI2
  await registerDi2Routes(app);
  await registerFinanceRoutes(app);
  await registerDocumentRoutes(app);
  registerDashboardRoutes(app);
  app.use(formAccessRouter);
  app.use(formOfflineRouter);
  app.use(calendarRouter);
  app.use(ganttRouter);
  app.use(organizationSkinsRouter);
  registerSyncRoutes(app);
  registerMedScheduleRoutes(app);
  registerMedScheduleBotRoutes(app);
  // GPS-модуль: публичный /api/gps/ingest регистрируется внутри до authenticateToken
  registerGpsRoutes(app);
  registerVpnRoutes(app);

  const httpServer = createServer(app);
  return httpServer;
}