<?php

namespace App\Filament\Widgets;

use App\Filament\Resources\AppealResource;
use App\Models\Appeal;
use Filament\Tables\Actions\Action;
use Filament\Tables\Columns\TextColumn;
use Filament\Tables\Table;
use Filament\Widgets\TableWidget as BaseWidget;

/**
 * Shows fundraisers that need staff attention right now.
 *
 * This is the "nurture queue" — it surfaces fundraisers that are
 * stalling, almost succeeding, or brand new, so Jasmine can
 * proactively help supporters succeed.
 */
class FundraiserNurtureWidget extends BaseWidget
{
    protected static ?int $sort = 5;

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

    protected static ?string $heading = 'Fundraisers That Need Your Help';

    protected int $defaultPaginationPageOption = 5;

    public function table(Table $table): Table
    {
        return $table
            ->query(
                Appeal::query()
                    ->where('status', 'confirmed')
                    ->where('is_accepting_donations', true)
                    ->where(function ($q) {
                        $q->where(function ($q2) {
                            // Needs outreach: £0 raised, 7+ days old
                            $q2->where('amount_raised', 0)
                                ->where('created_at', '<', now()->subDays(7))
                                ->where('created_at', '>', now()->subDays(90));  // Not ancient
                        })
                        ->orWhere(function ($q2) {
                            // Almost there: 80%+ of target
                            $q2->where('amount_raised', '>', 0)
                                ->whereRaw('amount_raised >= amount_to_raise * 0.8')
                                ->whereRaw('amount_raised < amount_to_raise');
                        })
                        ->orWhere(function ($q2) {
                            // New this week
                            $q2->where('created_at', '>=', now()->subDays(7));
                        });
                    })
                    ->with('user')
                    ->orderByRaw("
                        CASE
                            WHEN amount_raised > 0 AND amount_raised >= amount_to_raise * 0.8 AND amount_raised < amount_to_raise THEN 1
                            WHEN created_at >= NOW() - INTERVAL '7 days' THEN 2
                            WHEN amount_raised = 0 AND created_at < NOW() - INTERVAL '7 days' THEN 3
                            ELSE 4
                        END ASC
                    ")
            )
            ->columns([
                TextColumn::make('priority')
                    ->label('')
                    ->getStateUsing(function (Appeal $a) {
                        $raised = $a->amount_raised;
                        $target = $a->amount_to_raise;
                        $age = $a->created_at?->diffInDays(now()) ?? 0;

                        if ($raised > 0 && $raised >= $target * 0.8 && $raised < $target) return '🟡 Almost there';
                        if ($age <= 7) return '🆕 New';
                        if ($raised == 0) return '🔴 Needs help';
                        return '—';
                    })
                    ->badge()
                    ->color(function (Appeal $a) {
                        $raised = $a->amount_raised;
                        $target = $a->amount_to_raise;
                        $age = $a->created_at?->diffInDays(now()) ?? 0;

                        if ($raised > 0 && $raised >= $target * 0.8) return 'warning';
                        if ($age <= 7) return 'info';
                        return 'danger';
                    }),

                TextColumn::make('name')
                    ->label('Fundraiser')
                    ->limit(35)
                    ->weight('bold')
                    ->description(fn (Appeal $a) => $a->user?->name ? 'by ' . $a->user->name : ''),

                TextColumn::make('progress')
                    ->label('Progress')
                    ->getStateUsing(function (Appeal $a) {
                        $raised = $a->amount_raised / 100;
                        $target = $a->amount_to_raise / 100;
                        $pct = $target > 0 ? round($raised / $target * 100) : 0;
                        return '£' . number_format($raised, 0) . ' / £' . number_format($target, 0) . " ({$pct}%)";
                    }),

                TextColumn::make('created_at')
                    ->label('Created')
                    ->since(),
            ])
            ->actions([
                Action::make('view')
                    ->label('Open')
                    ->icon('heroicon-o-arrow-right')
                    ->url(fn (Appeal $a) => AppealResource::getUrl('edit', ['record' => $a]))
                    ->color('gray'),

                Action::make('email')
                    ->label('Email Owner')
                    ->icon('heroicon-o-envelope')
                    ->url(fn (Appeal $a) => $a->user?->email ? 'mailto:' . $a->user->email : null)
                    ->visible(fn (Appeal $a) => (bool) $a->user?->email)
                    ->openUrlInNewTab()
                    ->color('info'),
            ])
            ->paginated([5, 10])
            ->emptyStateHeading('All fundraisers are doing well!')
            ->emptyStateDescription('No fundraisers need attention right now.')
            ->emptyStateIcon('heroicon-o-face-smile');
    }
}