<?php

namespace App\Filament\Widgets;

use App\Models\ExchangeRateHistory;
use App\Services\ExchangeRateService;
use Filament\Widgets\StatsOverviewWidget as BaseWidget;
use Filament\Widgets\StatsOverviewWidget\Stat;

/**
 * Layer 2 (right) — live exchange-rate summary, spanning 4/12 of the body grid.
 */
class ExchangeRateWidget extends BaseWidget
{
    protected static ?int $sort = 3;

    protected static bool $isLazy = false;

    protected int|string|array $columnSpan = 12;

    /**
     * Stat cards inside the rate widget: 1 column on the narrow lg+ column,
     * 2 on mobile so they don't all stack vertically on tiny screens.
     */
    protected int|string|array $columns = 1;

    protected function getStats(): array
    {
        $service = app(ExchangeRateService::class);

        $aedInfo = $service->getLatestRateInfo('AED', 'IRR');
        $usdInfo = $service->getLatestRateInfo('USD', 'IRR');

        $aedChangePercent = $aedInfo['change_percent'];
        $usdChangePercent = $usdInfo['change_percent'];

        $aedChart = $service->getRateChart('AED', 'IRR', 7);
        $usdChart = $service->getRateChart('USD', 'IRR', 7);

        return [
            Stat::make('نرخ درهم (AED)', ifnex_format_number($aedInfo['current_rate'] ?? 0))
                ->description(
                    $aedChangePercent !== null
                        ? sprintf('%s %s — %s',
                            $aedChangePercent > 0 ? '↑' : ($aedChangePercent < 0 ? '↓' : '—'),
                            ifnex_persian_digits(number_format(abs((float) $aedChangePercent), 2)) . '%',
                            ($aedInfo['changed_by'] ?? 'سیستم'))
                        : 'آخرین تغییر: ' . ($aedInfo['last_updated']?->format('Y/m/d H:i') ?? '—')
                )
                ->descriptionIcon(
                    $aedChangePercent > 0 ? 'heroicon-m-arrow-trending-up' :
                    ($aedChangePercent < 0 ? 'heroicon-m-arrow-trending-down' : 'heroicon-m-minus')
                )
                ->icon('heroicon-o-currency-dollar')
                ->color(
                    $aedChangePercent > 0 ? 'danger' :
                    ($aedChangePercent < 0 ? 'success' : 'gray')
                )
                ->chart(!empty($aedChart) ? $aedChart : [0]),

            Stat::make('نرخ دلار (USD)', ifnex_format_number($usdInfo['current_rate'] ?? 0))
                ->description(
                    $usdChangePercent !== null
                        ? sprintf('%s %s — %s',
                            $usdChangePercent > 0 ? '↑' : ($usdChangePercent < 0 ? '↓' : '—'),
                            ifnex_persian_digits(number_format(abs((float) $usdChangePercent), 2)) . '%',
                            ($usdInfo['changed_by'] ?? 'سیستم'))
                        : 'آخرین تغییر: ' . ($usdInfo['last_updated']?->format('Y/m/d H:i') ?? '—')
                )
                ->descriptionIcon(
                    $usdChangePercent > 0 ? 'heroicon-m-arrow-trending-up' :
                    ($usdChangePercent < 0 ? 'heroicon-m-arrow-trending-down' : 'heroicon-m-minus')
                )
                ->icon('heroicon-o-banknotes')
                ->color(
                    $usdChangePercent > 0 ? 'danger' :
                    ($usdChangePercent < 0 ? 'success' : 'gray')
                )
                ->chart(!empty($usdChart) ? $usdChart : [0]),

            Stat::make('تغییرات امروز',
                ifnex_persian_digits(number_format(
                    ExchangeRateHistory::whereDate('created_at', today())->count()
                ))
            )
                ->description('تغییرات نرخ ثبت‌شده در امروز')
                ->descriptionIcon('heroicon-m-arrow-path')
                ->icon('heroicon-o-arrow-path')
                ->color('info'),

            Stat::make('در انتظار تأیید',
                ifnex_persian_digits(number_format($service->getPendingCount()))
            )
                ->description('نرخ‌های پیشنهادی API — منتظر تأیید مدیر')
                ->descriptionIcon('heroicon-m-clock')
                ->icon('heroicon-o-clock')
                ->color('warning'),
        ];
    }
}