const express = require("express");
const app = express();
const path = require("path");
const fetch = require("node-fetch");

app.use(express.static("public")); // public 폴더 내 정적 파일 제공
app.use(express.json()); // JSON 본문 파싱

// Access Token 수신용 엔드포인트
app.post("/token", async (req, res) => {
    const token = req.body.access_token;
    try {
        const response = await fetch("https://www.googleapis.com/oauth2/v3/userinfo", {
            headers: {
                Authorization: `Bearer ${token}`,
            },
        });
        const userInfo = await response.json();
        console.log("Email:", userInfo.email);
        console.log("Name:", userInfo.name);
        console.log("Access Token:", token);

        res.send({
            email: userInfo.email,
            name: userInfo.name,
            token: token,
            id: userInfo.id,
            picture: userInfo.picture,
            gender: userInfo.gender,
            birthday: userInfo.birthday,
            age: userInfo.age
        });
    } catch (err) {
        console.error("❌ Error:", err);
        res.status(500).send("Error");
    }
});

app.get("/callback", (req, res) => {
    res.sendFile(path.join(__dirname, "callback/callback.html"));
});

const PORT = 39090;
app.listen(PORT, () => {
  console.log(`✅ Server running at http://localhost:${PORT}`);
});