import bcrypt from 'bcrypt';
import { v4 as uuidv4 } from 'uuid';
import User from '../models/community/user.js';
import UserParam from '../models/community/user_param.js';
import UserParamType from '../models/type/user_param.js';
import { sendAccountActivationEmail, sendPasswordResetEmail } from '../services/emailService.js';
import i18n from '../utils/i18n.js';

const saltRounds = 10;

export const register = async (req, res) => {
    const { email, username, password, language } = req.body;

    try {
        const hashedPassword = await bcrypt.hash(password, saltRounds);
        const resetToken = uuidv4();
        const user = await User.create({
            email,
            username,
            password: hashedPassword,
            resetToken: resetToken,
            active: false,
            registration_date: new Date()
        });
        const languageType = await UserParamType.findOne({ where: { description: 'language' } });
        if (!languageType) {
            return res.status(500).json({ error: 'Language type not found' });
        }
        console.log(user.id, languageType.id);
        await UserParam.create({
            userId: user.id,
            paramTypeId: languageType.id,
            value: language
        });
        const activationLink = `${process.env.FRONTEND_URL}/activate?token=${resetToken}`;
        await sendAccountActivationEmail(email, activationLink, username, resetToken, language);
        res.status(201).json({ id: user.hashedId, username: user.username, active: user.active });
    } catch (error) {
        console.log(error);
        res.status(500).json({ error: error.message });
    }
};

export const login = async (req, res) => {
    const { email, password } = req.body;
    try {
        const user = await User.findOne({ where: { email } });
        if (!user) {
            return res.status(401).json({ error: 'Invalid email or password' });
        }
        if (!user.active) {
            return res.status(403).json({ error: 'Account not activated' });
        }
        const match = await bcrypt.compare(password, user.password);
        if (!match) {
            return res.status(401).json({ error: 'Invalid email or password' });
        }
        res.status(200).json({ id: user.hashed_id, username: user.username });
    } catch (error) {
        res.status(500).json({ error: 'Error logging in' });
    }
};

export const forgotPassword = async (req, res) => {
    const { email } = req.body;
    try {
        const user = await User.findOne({ where: { email } });
        if (!user) {
            return res.status(404).json({ error: 'Email not found' });
        }
        const resetToken = uuidv4();
        const resetLink = `${process.env.FRONTEND_URL}/reset-password?token=${resetToken}`;
        await user.update({ reset_token: resetToken });

        const languageParam = await UserParam.findOne({ where: { user_id: user.id, param_type_id: languageType.id } });
        const userLanguage = languageParam ? languageParam.value : 'en';

        await sendPasswordResetEmail(email, resetLink, userLanguage);
        res.status(200).json({ message: 'Password reset email sent' });
    } catch (error) {
        res.status(500).json({ error: 'Error processing forgot password' });
    }
};

export const activateAccount = async (req, res) => {
    const { token } = req.body;
    try {
        const user = await User.findOne({ where: { reset_token: token } });
        if (!user) {
            return res.status(404).json({ error: 'Invalid token' });
        }
        await user.update({ active: true, reset_token: null });
        res.status(200).json({ message: 'Account activated' });
    } catch (error) {
        res.status(500).json({ error: 'Error activating account' });
    }
};