<?php

use App\Helpers\CalendarHelper;

if (!function_exists('calendar_date')) {
    /**
     * Format a date based on the user's calendar preference with Persian digits.
     */
    function calendar_date($date, $format = 'Y/m/d')
    {
        if (!$date) return '';

        $calendar = session('calendar', 'jalali');

        try {
            // Convert to date string if it's a Carbon/DateTime object
            if ($date instanceof \DateTimeInterface) {
                $dateString = $date->format('Y-m-d H:i:s');
            } else {
                $dateString = (string) $date;
            }

            if ($calendar === 'jalali') {
                $jalali = \Morilog\Jalali\Jalalian::fromDateTime($dateString);
                $result = $jalali->format($format);
            } else {
                $result = date($format, strtotime($dateString));
            }
        } catch (\Exception $e) {
            // Fallback: try Carbon format
            try {
                if ($date instanceof \DateTimeInterface) {
                    $result = $date->format($format);
                } else {
                    $result = date($format, strtotime((string) $date));
                }
            } catch (\Exception $e2) {
                return (string) $date;
            }
        }

        // Convert to Persian digits if locale is fa
        if (app()->getLocale() === 'fa') {
            $result = persian_num($result);
        }

        return $result;
    }
}

if (!function_exists('calendar_date_raw')) {
    /**
     * Format a date based on calendar preference WITHOUT Persian digits.
     * Useful for form values that need English digits.
     */
    function calendar_date_raw($date, $format = 'Y/m/d')
    {
        if (!$date) return '';

        $calendar = session('calendar', 'jalali');

        try {
            if ($date instanceof \DateTimeInterface) {
                $dateString = $date->format('Y-m-d H:i:s');
            } else {
                $dateString = (string) $date;
            }

            if ($calendar === 'jalali') {
                $jalali = \Morilog\Jalali\Jalalian::fromDateTime($dateString);
                return $jalali->format($format);
            } else {
                return date($format, strtotime($dateString));
            }
        } catch (\Exception $e) {
            if ($date instanceof \DateTimeInterface) {
                return $date->format($format);
            }
            return (string) $date;
        }
    }
}

if (!function_exists('persian_num')) {
    function persian_num($number)
    {
        $persian = ['۰', '۱', '۲', '۳', '۴', '۵', '۶', '۷', '۸', '۹'];
        $english = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9'];
        return str_replace($english, $persian, (string) $number);
    }
}

if (!function_exists('format_currency')) {
    function format_currency($amount, $currency = 'IRR')
    {
        $formatted = number_format((float) $amount, $currency === 'IRR' ? 0 : 2);

        if (app()->getLocale() === 'fa') {
            $formatted = persian_num($formatted);
        }

        $symbol = '';
        switch ($currency) {
            case 'IRR': $symbol = 'ریال'; break;
            case 'USD': $symbol = '$'; break;
            case 'EUR': $symbol = '€'; break;
            case 'AED': $symbol = 'د.إ'; break;
        }

        return $formatted . ' ' . $symbol;
    }
}

if (!function_exists('get_direction')) {
    function get_direction()
    {
        return app()->getLocale() === 'fa' ? 'rtl' : 'ltr';
    }
}

if (!function_exists('is_rtl')) {
    function is_rtl()
    {
        return app()->getLocale() === 'fa';
    }
}