<?php

namespace App\Exports;

use Illuminate\Support\Collection;
use Maatwebsite\Excel\Concerns\FromCollection;
use Maatwebsite\Excel\Concerns\WithHeadings;
use Maatwebsite\Excel\Concerns\WithMapping;
use Maatwebsite\Excel\Concerns\WithStyles;
use Maatwebsite\Excel\Concerns\WithCustomStartCell;
use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;

class DataPelangganDetailExport implements
    FromCollection,
    WithHeadings,
    WithMapping,
    WithStyles,
    WithCustomStartCell
{
    protected $pelanggan;
    protected $year;
    protected $no = 0;

    public function __construct($pelanggan, $year)
    {
        $this->pelanggan = collect($pelanggan);
        $this->year = $year;
    }

    /**
     * Data source
     */
    public function collection(): Collection
    {
        return $this->pelanggan;
    }

    /**
     * Start data from row 5 (sebab ada tajuk)
     */
    public function startCell(): string
    {
        return 'A5';
    }

    /**
     * Header column
     */
    public function headings(): array
    {
        return [
            'No',
            'Nama Pelanggan',
            'No.Pelanggan',
            'Umur',
            'Jantina',
            'Pekerjaan',
            'Lokasi',
            'Tempoh Pajakan',
            'Tarikh Mula',
            'Tarikh Tamat',
            'Hari Sejak Transaksi Terakhir',
            'Bil Transaksi',
            'Bil Outstanding',
            'Bil Tebus',
            'Jumlah Pinjaman (RM)',
            'Jumlah Ujrah (RM)',
            'Tujuan Gadaian',
            'Status Aktif',
            'Cara Bayaran',
            'Tarikh Lelong',
        ];
    }

    /**
     * Map setiap row
     */
    public function map($row): array
    {
        return [
            ++$this->no,
            strtoupper($row['nama']),
            $row['nopelanggan'],
            $row['umur'],
            $row['jantina'],
            $row['pekerjaan'],
            $row['daerah'],
            $row['tempoh_pajakan'],
            $row['tarikh_mula'],
            $row['tarikh_tamat'],
            $row['hari_sejak_transaksi'],
            $row['bil_transaksi'],
            $row['bil_outstanding'],
            $row['bil_tebus'],
            number_format($row['jumlah_pinjaman'], 2),
            number_format($row['jumlah_ujrah'], 2),
            $row['tujuan_gadai'],
            $row['status_aktif'],
            $row['cara_bayaran'],
            $row['tarikh_lelong'] ?? '-',
        ];
    }

    /**
     * Styling Excel
     */
    public function styles(Worksheet $sheet)
    {
        // Tajuk utama
        $sheet->mergeCells('A1:R1');
        $sheet->setCellValue('A1', 'LAPORAN DATA PELANGGAN');
        $sheet->getStyle('A1')->getFont()->setBold(true)->setSize(14);
        $sheet->getStyle('A1')->getAlignment()->setHorizontal('center');

        // Tahun
        $sheet->mergeCells('A2:R2');
        $sheet->setCellValue('A2', 'TAHUN : ' . $this->year);
        $sheet->getStyle('A2')->getFont()->setBold(true);
        $sheet->getStyle('A2')->getAlignment()->setHorizontal('center');

        // Header table
        $sheet->getStyle('A5:R5')->getFont()->setBold(true);
        $sheet->getStyle('A5:R5')->getAlignment()->setHorizontal('center');

        // Auto width
        foreach (range('A', 'R') as $col) {
            $sheet->getColumnDimension($col)->setAutoSize(true);
        }
    }
}