<?php
/**
 * Modèle User
 */

declare(strict_types=1);

class User
{
    public static function findById(int $id): ?array
    {
        $db = Database::getInstance();

        $stmt = $db->prepare('
            SELECT id, email, name, created_at, updated_at
            FROM users
            WHERE id = :id
        ');

        $stmt->execute(['id' => $id]);
        $user = $stmt->fetch();

        return $user ?: null;
    }

    public static function findByEmail(string $email): ?array
    {
        $db = Database::getInstance();

        $stmt = $db->prepare('
            SELECT id, email, name, password, created_at, updated_at
            FROM users
            WHERE email = :email
        ');

        $stmt->execute(['email' => $email]);
        $user = $stmt->fetch();

        return $user ?: null;
    }

    public static function update(int $id, array $data): bool
    {
        $db = Database::getInstance();

        $fields = [];
        $params = ['id' => $id];

        if (isset($data['name'])) {
            $fields[] = 'name = :name';
            $params['name'] = $data['name'];
        }

        if (isset($data['email'])) {
            $fields[] = 'email = :email';
            $params['email'] = $data['email'];
        }

        if (isset($data['password'])) {
            $fields[] = 'password = :password';
            $params['password'] = password_hash($data['password'], PASSWORD_DEFAULT);
        }

        if (empty($fields)) {
            return false;
        }

        $sql = 'UPDATE users SET ' . implode(', ', $fields) . ' WHERE id = :id';
        $stmt = $db->prepare($sql);
        $stmt->execute($params);

        return $stmt->rowCount() > 0;
    }
}