<?php

namespace App\Exports;

use Maatwebsite\Excel\Concerns\FromArray;
use Maatwebsite\Excel\Concerns\WithEvents;
use Maatwebsite\Excel\Concerns\WithTitle;
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 RevesmartLaunchDriveExport implements FromArray, WithEvents, WithTitle
{
    /** @var array<int, array<int, mixed>> */
    protected $rows;

    /** @var array<int, array{type:string}> */
    protected $rowMeta;

    protected $showYesterday;

    protected $statusCols = 4;

    protected $dayCols = 8;

    protected $mtdCols = 8;

    protected $chestCols = 7;

    protected $title;

    /** @var array<int, string> */
    protected $merges;

    /**
     * @param array<int, array<int, mixed>> $rows
     * @param array<int, array{type:string}> $rowMeta
     * @param array<int, string> $merges
     */
    public function __construct(array $rows, array $rowMeta, bool $showYesterday, string $title = 'Revesmart-Launch-Drive', array $merges = [])
    {
        $this->rows = $rows;
        $this->rowMeta = $rowMeta;
        $this->showYesterday = $showYesterday;
        $this->title = $title;
        $this->merges = $merges;
    }

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

    public function title(): string
    {
        return mb_substr(preg_replace('/\.xlsx$/i', '', $this->title), 0, 31);
    }

    public function registerEvents(): array
    {
        return [
            AfterSheet::class => function (AfterSheet $event) {
                $sheet = $event->sheet->getDelegate();
                $colCount = $this->statusCols
                    + ($this->showYesterday ? $this->dayCols : 0)
                    + $this->mtdCols
                    + $this->chestCols;
                $lastCol = Coordinate::stringFromColumnIndex($colCount);
                $lastRow = max(1, count($this->rows));

                foreach ($this->merges as $range) {
                    if (is_string($range) && strpos($range, ':') !== false) {
                        $sheet->mergeCells($range);
                    }
                }

                $sheet->getStyle("A1:{$lastCol}{$lastRow}")->applyFromArray([
                    'borders' => [
                        'allBorders' => [
                            'borderStyle' => Border::BORDER_THIN,
                            'color' => ['rgb' => 'C5C9CE'],
                        ],
                    ],
                    'alignment' => [
                        'horizontal' => Alignment::HORIZONTAL_CENTER,
                        'vertical' => Alignment::VERTICAL_CENTER,
                        'wrapText' => true,
                    ],
                    'font' => [
                        'size' => 10,
                    ],
                ]);

                // Left-align name column
                $sheet->getStyle("A1:A{$lastRow}")->getAlignment()->setHorizontal(Alignment::HORIZONTAL_LEFT);

                // Group header row (row 1)
                $col = 1;
                $this->fillRange($sheet, $col, 1, $this->statusCols, 'C8E6C9', true);
                $col += $this->statusCols;
                if ($this->showYesterday) {
                    $this->fillRange($sheet, $col, 1, $this->dayCols, 'FFE0B2', true);
                    $col += $this->dayCols;
                }
                $this->fillRange($sheet, $col, 1, $this->mtdCols, 'C8E6C9', true);
                $col += $this->mtdCols;
                $this->fillRange($sheet, $col, 1, $this->chestCols, 'BBDEFB', true);

                // Sub-header row (row 2)
                if ($lastRow >= 2) {
                    $sheet->getStyle("A2:{$lastCol}2")->applyFromArray([
                        'font' => ['bold' => true],
                        'fill' => [
                            'fillType' => Fill::FILL_SOLID,
                            'startColor' => ['rgb' => 'EEF1F4'],
                        ],
                    ]);
                }

                // Data rows
                foreach ($this->rowMeta as $index => $meta) {
                    $excelRow = $index + 1;
                    $type = $meta['type'] ?? 'data';
                    if ($type === 'group' || $type === 'sub') {
                        continue;
                    }
                    if ($type === 'zbm') {
                        $sheet->getStyle("A{$excelRow}:{$lastCol}{$excelRow}")->applyFromArray([
                            'font' => ['bold' => true],
                            'fill' => [
                                'fillType' => Fill::FILL_SOLID,
                                'startColor' => ['rgb' => 'E8F5E9'],
                            ],
                        ]);
                    } elseif ($type === 'grand') {
                        $sheet->getStyle("A{$excelRow}:{$lastCol}{$excelRow}")->applyFromArray([
                            'font' => ['bold' => true, 'color' => ['rgb' => 'FFFFFF']],
                            'fill' => [
                                'fillType' => Fill::FILL_SOLID,
                                'startColor' => ['rgb' => '2E7D32'],
                            ],
                        ]);
                    }
                }

                for ($i = 1; $i <= $colCount; $i++) {
                    $letter = Coordinate::stringFromColumnIndex($i);
                    $sheet->getColumnDimension($letter)->setAutoSize(true);
                }
                $sheet->getColumnDimension('A')->setWidth(22);
                $sheet->getRowDimension(1)->setRowHeight(28);
                $sheet->getRowDimension(2)->setRowHeight(36);
            },
        ];
    }

    protected function fillRange($sheet, int $startCol, int $row, int $span, string $rgb, bool $bold = false): void
    {
        if ($span <= 0) {
            return;
        }
        $start = Coordinate::stringFromColumnIndex($startCol) . $row;
        $end = Coordinate::stringFromColumnIndex($startCol + $span - 1) . $row;
        $sheet->getStyle("{$start}:{$end}")->applyFromArray([
            'font' => ['bold' => $bold],
            'fill' => [
                'fillType' => Fill::FILL_SOLID,
                'startColor' => ['rgb' => $rgb],
            ],
        ]);
    }
}