<?php

namespace App\Exports;

use App\Models\Warga;
use Maatwebsite\Excel\Concerns\FromCollection;
use Maatwebsite\Excel\Concerns\WithHeadings;
use Maatwebsite\Excel\Concerns\WithCustomStartCell;
use Maatwebsite\Excel\Concerns\WithEvents;
use Maatwebsite\Excel\Concerns\WithMapping;
use Maatwebsite\Excel\Concerns\WithCustomValueBinder;
use PhpOffice\PhpSpreadsheet\Cell\StringValueBinder;
use Maatwebsite\Excel\Events\AfterSheet;
use PhpOffice\PhpSpreadsheet\Style\Alignment;

class WargaExport extends StringValueBinder implements FromCollection, WithHeadings, WithCustomStartCell, WithEvents, WithMapping, WithCustomValueBinder
{
    public function collection()
    {
        return Warga::with('wilayah')->orderBy('nama')->get();
    }

    public function map($warga): array
    {
        return [
            $warga->nik,
            $warga->nama,
            $warga->wilayah ? $warga->wilayah->dusun : $warga->dusun,
            $warga->wilayah ? $warga->wilayah->rw : $warga->rw,
        ];
    }

    public function headings(): array
    {
        return [
            'NIK',
            'Nama Lengkap',
            'Dusun',
            'RW',
        ];
    }

    public function startCell(): string
    {
        return 'A9';
    }

    public function registerEvents(): array
    {
        return [
            AfterSheet::class => function(AfterSheet $event) {
                $sheet = $event->sheet->getDelegate();
                
                // Set Kop Data
                $sheet->setCellValue('A1', 'PEMERINTAH KABUPATEN MOJOKERTO');
                $sheet->setCellValue('A2', 'KECAMATAN PUNGGING');
                $sheet->setCellValue('A3', 'DESA PUNGGING');
                $sheet->setCellValue('A4', 'Jalan Raya Pungging No. 27 Pungging, Mojokerto, Jawa Timur');
                $sheet->setCellValue('A5', 'Kode Pos 61384   Telp. (0321) 532733');
                $sheet->setCellValue('A7', 'DATA WARGA BLT-DD');

                // Merge Cells
                for ($i = 1; $i <= 7; $i++) {
                    $sheet->mergeCells("A{$i}:D{$i}");
                }

                // Styling
                $sheet->getStyle('A1:A7')->getAlignment()->setHorizontal(Alignment::HORIZONTAL_CENTER);
                $sheet->getStyle('A1:A3')->getFont()->setBold(true)->setSize(14);
                $sheet->getStyle('A7')->getFont()->setBold(true)->setSize(12);
                $sheet->getStyle('A9:D9')->getFont()->setBold(true);
                $sheet->getStyle('A9:D9')->getAlignment()->setHorizontal(Alignment::HORIZONTAL_CENTER);
                
                // Auto-size columns
                foreach (range('A', 'D') as $col) {
                    $sheet->getColumnDimension($col)->setAutoSize(true);
                }
            },
        ];
    }
}