import crypto from "crypto";
import jwt from "jsonwebtoken";
import {
    User
} from "../../../models/User";
import {
    LoginResult,
    LoginInput
} from "./types";

export const login = async (input: LoginInput): Promise<LoginResult> => {
    const {
        mail,
        password
    } = input;

    const user = await User.findOne({
        mail
    });

    if (!user) {
        return {
            statusCode: 404,
            success: false,
            message: "Kullanıcı bulunamadı",
            code: 404,
        };
    }

    const hashedPassword = crypto.createHash("md5").update(password).digest("hex");

    if (user.password !== hashedPassword) {
        return {
            statusCode: 401,
            success: false,
            message: "Hatalı şifre",
            code: 401,
        };
    }

    if (!user.isMailVerified) {
        return {
            statusCode: 403,
            success: false,
            message: "Lütfen email adresinizi doğrulayın",
            code: 403,
            payload: {
                isMailVerified: user.isMailVerified,
                mail: user.mail,
            },
        };
    }

    const accessToken = jwt.sign(
        {
            userId: user._id
        },
        process.env.JWT_SECRET as string,
        {
            expiresIn: "4h"
        }
    );

    const refreshToken = jwt.sign(
        {
            userId: user._id
        },
        process.env.JWT_REFRESH_SECRET as string || process.env.JWT_SECRET as string,
        {
            expiresIn: "30d"
        }
    );

    user.refreshToken = refreshToken;
    await user.save();

    return {
        statusCode: 200,
        success: true,
        message: "Giriş başarılı",
        code: 200,
        payload: {
            accessToken,
            refreshToken,
            user: {
                userID: user._id.toString(),
                mail: user.mail,
                firstName: user.firstName,
                lastName: user.lastName,
                fullName: user.fullName,
                phoneNumber: user.phoneNumber,
                companyName: user.companyName,
            },
        },
    };
};

export default login;