const passport = require("passport");
const GoogleStrategy = require("passport-google-oauth20").Strategy;
const { getPool } = require("./db.js");



// 🧠 Save user to DB or fetch if exists
async function findOrCreateUser(profile, provider) {
    const email = profile.emails?.[0]?.value || `${profile.id}@facebook.com`;
    const name = profile.displayName;
    const pool = await getPool();

    const [existing] = await pool.execute(
        "SELECT * FROM tbl_userlogin WHERE email = ? LIMIT 1",
        [email]
    );

    if (existing.length) return existing[0];

    const userid = uuidv4();

    await pool.execute(
        "INSERT INTO tbl_userlogin (userid, name, email, password, provider) VALUES (?, ?, ?, ?, ?)",
        [userid, name, email, null, provider]
    );

    return { userid, name, email, provider };
}

// 🔹 Google
passport.use(
    new GoogleStrategy(
        {
            clientID: "657565817895-sqmh7bd4cef3j7c7cmuno1tpbhg7fjbo.apps.googleusercontent.com",
            clientSecret: "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",
            callbackURL: `https://api.socialbuddy.co/api/auth/google/callback`,
        },
        async (accessToken, refreshToken, profile, done) => {
            const user = await findOrCreateUser(profile, "google");
            done(null, user);
        }
    )
);



// 🔹 Serialize/deserialize
passport.serializeUser((user, done) => done(null, user));
passport.deserializeUser((user, done) => done(null, user));

module.exports = passport;