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path: root/src/components/header/authdialog/register.ts
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export const validate = (
    username: string,
    email: string,
    password: string,
    passwordConfirm: string,
) => {
    const newErrors: Record<string, string> = {};

    if (!username) newErrors.username = 'Введите никнейм';
    else if (username.length < 3) newErrors.username = 'Минимум 3 символа.';
    else if (username.length > 32) newErrors.username = 'Максимум 32 символа';

    if (!email) newErrors.email = 'Введите email.';
    else {
        const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
        if (!emailRegex.test(email)) newErrors.email = 'Некорректный email';
        if (email.length > 254) newErrors.email = 'Слишком длинный email.';
    }

    if (!password) newErrors.password = 'Введите пароль.';
    else if (password.length < 8)
        newErrors.password = 'Необходимо минимум 8 символов.';
    else {
        const hasLetter = /[A-Za-z]/.test(password);
        const hasNumber = /\d/.test(password);
        const hasSymbol = /[^\w\s]/.test(password);
        if (!(hasLetter && hasNumber && hasSymbol)) {
            newErrors.password = 'Попробуйте сочетание букв, цифр и символов.';
        }
    }

    if (password !== passwordConfirm)
        newErrors.passwordConfirm = 'Пароли не совпадают.';

    return newErrors;
};

const API_URL = process.env.NEXT_PUBLIC_API_URL;

export const registerUser = async (
    username: string,
    email: string,
    password: string,
) => {
    try {
        const res = await fetch(`${API_URL}/api/auth/register`, {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json',
            },
            body: JSON.stringify({ username, email, password }),
            credentials: 'include',
        });

        let data: any = null;

        try {
            data = await res.json();
        } catch {
            data = null;
        }

        if (!res.ok) {
            const detail = data?.detail;

            return {
                data: null,
                error: detail?.field
                    ? { [detail.field]: detail.message }
                    : { general: detail?.message || 'Ошибка регистрации' },
            };
        }

        return {
            data,
            error: null,
        };
    } catch (err: any) {
        return {
            data: null,
            error: {
                general:
                    err?.message === 'Failed to fetch'
                        ? 'Нет соединения с сервером'
                        : err?.message || 'Network error',
            },
        };
    }
};