import dotenv from "dotenv";
import express from "express";
import cors from "cors";
import compression from "compression";
import nocache from "nocache";
import path from "path";
import expressOasGenerator, {
  OpenAPIV3,
  SPEC_OUTPUT_FILE_BEHAVIOR,
} from "express-oas-generator";

dotenv.config({ path: path.resolve(__dirname, "../../../.env") });

import "./database";
import { sequelize } from "@/database/instance";
import { createApis } from "./api";

const port = process.env.PORT || 3005;

const app = express();
app.set("etag", false);
app.use(nocache());
app.use(cors());
app.use(express.json({ limit: "100mb" }));
app.use(compression());

app.use(express.static(path.resolve(__dirname, "client")));

createApis(app);

expressOasGenerator.handleResponses(app, {
  specOutputFileBehavior: SPEC_OUTPUT_FILE_BEHAVIOR.RECREATE,
  swaggerDocumentOptions: {},
  predefinedSpec: (spec: OpenAPIV3.Document) => {
    if (spec.info) {
      spec.info.description = "Egret App Server";
    }
    if (spec.paths) {
      delete spec.paths["/v3/api-docs"];
    }
    return spec;
  },
});

expressOasGenerator.handleRequests();

app.get("/v3/api-docs", async (req, res) => {
  expressOasGenerator.getSpecV3((err, doc) => {
    res.status(200).json(doc);
  });
});

const host = "0.0.0.0";
app.listen(Number(port), host, async () => {
  try {
    await sequelize.sync({ alter: true });
    console.log("[server]: sequelize.sync() executed");
  } catch (e) {
    console.error("Failed to sync database:", e);
  }
  console.log(`[server]: Server is running at http://${host}:${port}`);
});