<?php

namespace App\Filament\Resources;

use App\Filament\Resources\HasilResource\Pages;
use App\Models\Parameter;
use Filament\Forms\Form;
use Filament\Resources\Resource;
use Filament\Tables;
use Filament\Tables\Table;
use Filament\Tables\Columns\TextColumn;
use Filament\Forms\Components\TextInput;
use Filament\Notifications\Notification;
use Illuminate\Support\Facades\DB;

class HasilResource extends Resource
{
    protected static ?string $model = Parameter::class;
    public static $kuota = 0;

    protected static ?string $navigationIcon = 'heroicon-o-clipboard-document-check';
    protected static ?string $navigationGroup = 'Penilaian';
    protected static ?string $navigationLabel = 'Hasil Penilaian';
    protected static ?int $navigationSort = 2;
    protected static ?string $slug = 'hasil-penilaian';
    
    protected static ?string $modelLabel = 'Hasil Penilaian';
    protected static ?string $pluralModelLabel = 'Hasil Penilaian';
    protected static ?string $breadcrumb = 'Hasil Penilaian';

    public static function table(Table $table): Table
    {
        return $table
            ->headerActions([
                Tables\Actions\Action::make('setKuota')
                    ->label('Set Kuota Penerimaan')
                    ->form([
                        TextInput::make('kuota')
                            ->label('Jumlah Kuota')
                            ->numeric()
                            ->required()
                            ->minValue(1)
                            ->helperText('Masukkan jumlah kuota penerimaan. Hanya mahasiswa dengan nilai tertinggi dan berkas valid yang akan diterima.'),
                    ])
                    ->action(function (array $data): void {
                        DB::beginTransaction();
                        try {
                            // Reset semua hasil terlebih dahulu
                            Parameter::query()->update(['hasil' => 'Tidak Layak']);

                            // Ambil semua data parameter yang valid dan urutkan berdasarkan total nilai
                            $validParameters = Parameter::where('status', 'valid')
                                ->orderBy('total_nilai', 'desc')
                                ->get();

                            $kuota = (int) $data['kuota'];
                            $index = 0;

                            foreach ($validParameters as $parameter) {
                                // Gunakan update langsung ke database untuk memastikan perubahan tersimpan
                                if ($index < $kuota) {
                                    DB::table('parameters')
                                        ->where('id', $parameter->id)
                                        ->update(['hasil' => 'Layak']);
                                } elseif ($index < ($kuota + 3)) {
                                    DB::table('parameters')
                                        ->where('id', $parameter->id)
                                        ->update(['hasil' => 'Dipertimbangkan']);
                                }
                                $index++;
                            }

                            DB::commit();

                            Notification::make()
                                ->title("Berhasil mengatur kuota penerimaan untuk {$kuota} mahasiswa")
                                ->success()
                                ->send();
                        } catch (\Exception $e) {
                            DB::rollBack();
                            Notification::make()
                                ->title('Terjadi kesalahan: ' . $e->getMessage())
                                ->danger()
                                ->send();
                        }
                    })
                    ->requiresConfirmation()
                    ->modalHeading('Set Kuota Penerimaan')
                    ->modalDescription('Apakah Anda yakin ingin mengatur kuota penerimaan? Tindakan ini akan mengubah status kelayakan semua mahasiswa.')
                    ->modalSubmitActionLabel('Ya, Set Kuota')
                    ->successNotificationTitle('Kuota berhasil diatur'),
            ])
            ->modifyQueryUsing(fn ($query) => $query->where('status', 'valid'))
            ->columns([
                TextColumn::make('no')
                    ->label('No.')
                    ->rowIndex(false)
                    ->alignCenter(),
                    
                TextColumn::make('mahasiswa.nama')
                    ->label('Nama Mahasiswa')
                    ->searchable()
                    ->sortable(),
                    
                TextColumn::make('total_nilai')
                    ->label('Total Nilai')
                    ->formatStateUsing(fn ($state) => number_format($state, 4))
                    ->sortable(),
                    
                TextColumn::make('hasil')
                    ->label('Hasil')
                    ->badge()
                    ->color(fn (string $state): string => match ($state) {
                        'Layak' => 'success',
                        'Dipertimbangkan' => 'warning',
                        'Tidak Layak' => 'danger',
                        default => 'gray',
                    }),
            ])
            ->defaultSort('total_nilai', 'desc')
            ->filters([
                Tables\Filters\SelectFilter::make('hasil')
                    ->options([
                        'Layak' => 'Layak',
                        'Dipertimbangkan' => 'Dipertimbangkan',
                        'Tidak Layak' => 'Tidak Layak',
                    ]),
            ]);
    }

    public static function getPages(): array
    {
        return [
            'index' => Pages\ListHasil::route('/'),
        ];
    }
}