import dotenv from "dotenv";
// 加载 .env 文件中的环境变量
dotenv.config();
import express from "express";
import { serverConfig } from "./config.js";
import { logger } from "./middleware/logger.js";
import { errorHandler } from "./middleware/errorHandler.js";
import exampleRoutes from "./routes/exampleRoutes.js";
import chartRoutes from "./routes/chartRoutes.js";
import path from "path";
import { fileURLToPath } from "url";
// 引入 cors 模块
import cors from "cors";

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

const app = express();
// 使用 cors 中间件
app.use(cors());
// 中间件
app.use(express.json({ limit: "100mb" }));
app.use(logger);

// 静态文件服务
app.use("/images", express.static(path.join(process.cwd(), "src", "images")));
app.use("/js", express.static(path.join(process.cwd(), "src", "public", "js")));
app.use(
  "/testData.json",
  express.static(path.join(process.cwd(), "src", "testData.json"))
);

// 路由
app.use("/examples", exampleRoutes);
app.use("/chartServer/charts", chartRoutes);

// 错误处理
app.use(errorHandler);

export const startServer = () => {
  app.listen(serverConfig.port, serverConfig.host, () => {
    console.log(
      `Server is running on http://${serverConfig.host}:${serverConfig.port}`
    );
  });
};

export default app;