<?php

namespace App\Exports;

use Maatwebsite\Excel\Concerns\FromArray;
use Maatwebsite\Excel\Concerns\ShouldAutoSize;
use Maatwebsite\Excel\Concerns\WithEvents;
use Maatwebsite\Excel\Events\AfterSheet;
use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
use PhpOffice\PhpSpreadsheet\Style\Alignment;
use PhpOffice\PhpSpreadsheet\Style\Border;
use PhpOffice\PhpSpreadsheet\Style\Fill;

class IvaStyledExport implements FromArray, WithEvents, ShouldAutoSize
{
    protected $data;
    protected $merges;
    protected $fills;
    protected $headerRows;
    protected $freeze;

    public function __construct(array $payload)
    {
        $this->data = $payload['data'] ?? [];
        $this->merges = $payload['merges'] ?? [];
        $this->fills = $payload['fills'] ?? [];
        $this->headerRows = (int) ($payload['header_rows'] ?? 1);
        $this->freeze = $payload['freeze'] ?? 'A2';
    }

    public function array(): array
    {
        return $this->data;
    }

    public function registerEvents(): array
    {
        return [
            AfterSheet::class => function (AfterSheet $event) {
                $sheet = $event->sheet->getDelegate();
                $rowCount = max(1, count($this->data));
                $colCount = 1;
                foreach ($this->data as $row) {
                    $colCount = max($colCount, count($row));
                }
                $lastCol = Coordinate::stringFromColumnIndex($colCount);
                $lastCell = $lastCol . $rowCount;

                foreach ($this->merges as $range) {
                    $sheet->mergeCells($range);
                }

                $sheet->getStyle('A1:' . $lastCell)->applyFromArray([
                    'alignment' => [
                        'horizontal' => Alignment::HORIZONTAL_CENTER,
                        'vertical' => Alignment::VERTICAL_CENTER,
                        'wrapText' => true,
                    ],
                    'borders' => [
                        'allBorders' => [
                            'borderStyle' => Border::BORDER_THIN,
                            'color' => ['rgb' => 'B0B0B0'],
                        ],
                    ],
                    'font' => [
                        'name' => 'Calibri',
                        'size' => 11,
                    ],
                ]);

                if ($this->headerRows > 0) {
                    $headerRange = 'A1:' . $lastCol . $this->headerRows;
                    $sheet->getStyle($headerRange)->getFont()->setBold(true);
                    $sheet->getRowDimension(1)->setRowHeight(22);
                    if ($this->headerRows > 1) {
                        $sheet->getRowDimension(2)->setRowHeight(30);
                    }
                }

                foreach ($this->fills as $range => $fill) {
                    $sheet->getStyle($range)->applyFromArray([
                        'font' => [
                            'bold' => true,
                            'color' => ['rgb' => $fill['fg'] ?? '000000'],
                        ],
                        'fill' => [
                            'fillType' => Fill::FILL_SOLID,
                            'startColor' => ['rgb' => $fill['bg'] ?? 'FFFFFF'],
                        ],
                        'alignment' => [
                            'horizontal' => Alignment::HORIZONTAL_CENTER,
                            'vertical' => Alignment::VERTICAL_CENTER,
                            'wrapText' => true,
                        ],
                    ]);
                }

                $sheet->freezePane($this->freeze);
            },
        ];
    }
}