<?php

namespace App\Exports;

use App\Models\Kriteria;
use App\Models\PenilaianWarga;
use App\Models\Warga;
use Illuminate\Support\Collection;
use Maatwebsite\Excel\Concerns\FromCollection;
use Maatwebsite\Excel\Concerns\WithHeadings;
use Maatwebsite\Excel\Concerns\WithCustomStartCell;
use Maatwebsite\Excel\Concerns\WithEvents;
use Maatwebsite\Excel\Concerns\WithCustomValueBinder;
use PhpOffice\PhpSpreadsheet\Cell\StringValueBinder;
use Maatwebsite\Excel\Events\AfterSheet;
use PhpOffice\PhpSpreadsheet\Style\Alignment;
use Illuminate\Support\Facades\DB;

class PenilaianWargaExport extends StringValueBinder implements FromCollection, WithHeadings, WithCustomStartCell, WithEvents, WithCustomValueBinder
{
    protected $periode_id;
    protected $kriteria;

    public function __construct($periode_id)
    {
        $this->periode_id = $periode_id;
        $this->kriteria = Kriteria::orderBy('kode')->get();
    }

    private function getKeteranganNilai($kode_kriteria, $nilai)
    {
        if (!$nilai) return 0;

        $keterangan = [
            'C1' => [
                1 => '1 - Tidak bekerja / Buruh harian lepas',
                2 => '2 - Petani kecil / Nelayan kecil',
                3 => '3 - Pedagang kecil / Wiraswasta kecil',
                4 => '4 - Karyawan swasta / PNS Golongan rendah',
                5 => '5 - PNS / Profesional / Pengusaha',
            ],
            'C2' => [
                1 => '1 - 1 orang',
                2 => '2 - 2 orang',
                3 => '3 - 3 orang',
                4 => '4 - 4 orang',
                5 => '5 - > 4 orang',
            ],
            'C3' => [
                1 => '1 - Sehat, usia produktif',
                2 => '2 - Sehat, lanjut usia',
                3 => '3 - Sering sakit ringan / Lansia tunggal',
                4 => '4 - Sakit menahun / Disabilitas ringan',
                5 => '5 - Sakit kronis parah / Disabilitas berat',
            ],
            'C4' => [
                1 => '1 - 20 - 30 tahun',
                2 => '2 - 31 - 40 tahun',
                3 => '3 - 41 - 50 tahun',
                4 => '4 - 51 - 60 tahun',
                5 => '5 - > 60 tahun',
            ],
            'C5' => [
                1 => '1 - Belum pernah menerima bantuan',
                2 => '2 - Pernah menerima (> 2 tahun lalu)',
                3 => '3 - Pernah menerima (1 - 2 tahun lalu)',
                4 => '4 - Aktif menerima 1 jenis bantuan',
                5 => '5 - Aktif menerima banyak jenis bantuan',
            ]
        ];

        $nilaiInt = (int) $nilai;
        return isset($keterangan[$kode_kriteria][$nilaiInt]) ? $keterangan[$kode_kriteria][$nilaiInt] : $nilai;
    }

    public function collection()
    {
        $wargaDinilai = DB::table('penilaian_warga')
            ->where('periode_id', $this->periode_id)
            ->distinct()
            ->pluck('warga_id');

        $penilaian = PenilaianWarga::where('periode_id', $this->periode_id)
            ->get()
            ->groupBy('warga_id');

        $warga = Warga::whereIn('id', $wargaDinilai)->orderBy('nama')->get();

        $data = new Collection();

        foreach ($warga as $w) {
            $row = [
                'nik'  => $w->nik,
                'nama' => $w->nama,
            ];

            $penilaianWarga = $penilaian->get($w->id)?->keyBy('kriteria_id') ?? collect();

            foreach ($this->kriteria as $k) {
                $nilaiAngka = isset($penilaianWarga[$k->id]) ? $penilaianWarga[$k->id]->nilai : 0;
                $row[$k->kode] = $this->getKeteranganNilai($k->kode, $nilaiAngka);
            }

            $data->push($row);
        }

        return $data;
    }

    public function headings(): array
    {
        $headers = ['NIK', 'Nama Lengkap'];
        foreach ($this->kriteria as $k) {
            $headers[] = $k->kode;
        }
        return $headers;
    }

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

    public function registerEvents(): array
    {
        return [
            AfterSheet::class => function(AfterSheet $event) {
                $sheet = $event->sheet->getDelegate();
                
                $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 PENILAIAN WARGA BLT-DD');

                $lastColumn = $sheet->getHighestColumn();

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

                $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);
                $sheet->getStyle("A9:{$lastColumn}9")->getFont()->setBold(true);
                $sheet->getStyle("A9:{$lastColumn}9")->getAlignment()->setHorizontal(Alignment::HORIZONTAL_CENTER);
                
                foreach (range('A', $lastColumn) as $col) {
                    $sheet->getColumnDimension($col)->setAutoSize(true);
                }
            },
        ];
    }
}