import { User } from "@/types/user";

export const formatDate = (dateString: string | null): string => {
    if (!dateString) return 'نامشخص';

    try {
        const date = new Date(dateString);
        return new Intl.DateTimeFormat('fa-IR', {
            year: 'numeric',
            month: 'long',
            day: 'numeric',
        }).format(date);
    } catch {
        return 'نامشخص';
    }
};

export const formatPrice = (price: number | null): string => {
    if (price === null || price === undefined) return '0';
    return new Intl.NumberFormat('fa-IR').format(price);
};

export const getProductTypeLabel = (type: number | null): string => {
    const types: Record<number, string> = {
        1: 'ماهیانه',
        2: 'سه ماهه',
        3: 'شش ماهه',
        4: 'سالیانه',
    };
    return type && types[type] ? types[type] : 'نامشخص';
};

export const getFullName = (user: User): string => {
    if (user.full_name) return user.full_name;

    const firstName = user.first_name || '';
    const lastName = user.last_name || '';

    if (firstName || lastName) {
        return `${firstName} ${lastName}`.trim();
    }

    return 'نامشخص';
};

export const getEmail = (email: string | null): string => {
    return email || 'ایمیل ثبت نشده';
};

export const getMobile = (mobile: string | null): string => {
    return mobile || 'شماره موبایل ثبت نشده';
};

export const formatTime = (dateString: string | null): string => {
    if (!dateString) return '';
    
    try {
        const date = new Date(dateString);
        return new Intl.DateTimeFormat('fa-IR', {
            hour: '2-digit',
            minute: '2-digit',
        }).format(date);
    } catch {
        return '';
    }
};