<?php

namespace App\Filament\Widgets;

use App\Models\Donation;
use App\Models\ScheduledGivingDonation;
use Filament\Widgets\StatsOverviewWidget;
use Filament\Widgets\StatsOverviewWidget\Stat;
use Illuminate\Database\Eloquent\Builder;

class DonationStatsWidget extends StatsOverviewWidget
{
    protected static ?int $sort = 1;

    protected int | string | array $columnSpan = 'full';

    protected function getStats(): array
    {
        $confirmedScope = fn (Builder $q) => $q->whereNotNull('confirmed_at');

        // Today
        $todayQuery = Donation::whereHas('donationConfirmation', $confirmedScope)
            ->whereDate('created_at', today());
        $todayCount = $todayQuery->count();
        $todayRevenue = $todayQuery->sum('amount') / 100;

        // This week
        $weekQuery = Donation::whereHas('donationConfirmation', $confirmedScope)
            ->where('created_at', '>=', now()->startOfWeek());
        $weekRevenue = $weekQuery->sum('amount') / 100;

        // This month
        $monthQuery = Donation::whereHas('donationConfirmation', $confirmedScope)
            ->where('created_at', '>=', now()->startOfMonth());
        $monthCount = $monthQuery->count();
        $monthRevenue = $monthQuery->sum('amount') / 100;

        // Last month for trend
        $lastMonthRevenue = Donation::whereHas('donationConfirmation', $confirmedScope)
            ->whereBetween('created_at', [now()->subMonth()->startOfMonth(), now()->subMonth()->endOfMonth()])
            ->sum('amount') / 100;
        $monthTrend = $lastMonthRevenue > 0
            ? round(($monthRevenue - $lastMonthRevenue) / $lastMonthRevenue * 100, 1)
            : null;

        // Failed/incomplete donations today (people who tried but didn't complete)
        $incompleteToday = Donation::whereDoesntHave('donationConfirmation', $confirmedScope)
            ->whereDate('created_at', today())
            ->count();

        // Monthly supporters
        $activeSG = ScheduledGivingDonation::where('is_active', true)->count();

        // Zakat this month
        $zakatMonth = Donation::whereHas('donationConfirmation', $confirmedScope)
            ->where('created_at', '>=', now()->startOfMonth())
            ->whereHas('donationPreferences', fn ($q) => $q->where('is_zakat', true))
            ->sum('amount') / 100;

        return [
            Stat::make("Today's Donations", '£' . number_format($todayRevenue, 0))
                ->description($todayCount . ' donations received' . ($incompleteToday > 0 ? " · {$incompleteToday} incomplete" : ''))
                ->descriptionIcon($incompleteToday > 0 ? 'heroicon-m-exclamation-triangle' : 'heroicon-m-check-circle')
                ->color($incompleteToday > 5 ? 'warning' : 'success'),

            Stat::make('This Month', '£' . number_format($monthRevenue, 0))
                ->description(
                    $monthCount . ' donations' .
                    ($monthTrend !== null ? ' · ' . ($monthTrend >= 0 ? '↑' : '↓') . abs($monthTrend) . '% vs last month' : '')
                )
                ->descriptionIcon('heroicon-m-arrow-trending-up')
                ->color($monthTrend !== null && $monthTrend >= 0 ? 'success' : 'warning'),

            Stat::make('Monthly Supporters', number_format($activeSG))
                ->description('People giving every month')
                ->descriptionIcon('heroicon-m-heart')
                ->color('success'),

            Stat::make('Zakat This Month', '£' . number_format($zakatMonth, 0))
                ->description('Zakat-eligible donations')
                ->descriptionIcon('heroicon-m-star')
                ->color('info'),
        ];
    }
}