<?php

namespace Tests\Unit\Helpers;

use App\Helpers\ExcelHelper;
use PhpOffice\PhpSpreadsheet\Spreadsheet;
use PHPUnit\Framework\TestCase;

class ExcelHelperTest extends TestCase
{
    public function test_copy_rows_copies_cell_values(): void
    {
        $spreadsheet = new Spreadsheet();
        $sheet = $spreadsheet->getActiveSheet();

        $sheet->setCellValue('A1', 'Hello');
        $sheet->setCellValue('B1', 'World');
        $sheet->setCellValue('A2', 'Foo');
        $sheet->setCellValue('B2', 'Bar');

        ExcelHelper::copyRows($sheet, 'A1:B2', 'C1');

        $this->assertEquals('Hello', $sheet->getCell('C1')->getValue());
        $this->assertEquals('World', $sheet->getCell('D1')->getValue());
        $this->assertEquals('Foo', $sheet->getCell('C2')->getValue());
        $this->assertEquals('Bar', $sheet->getCell('D2')->getValue());
    }

    public function test_copy_rows_invalid_src_range_does_nothing(): void
    {
        $spreadsheet = new Spreadsheet();
        $sheet = $spreadsheet->getActiveSheet();

        $sheet->setCellValue('A1', 'Test');

        // Should not throw, just return silently
        ExcelHelper::copyRows($sheet, 'INVALID_RANGE', 'C1');

        $this->assertNull($sheet->getCell('C1')->getValue());
    }

    public function test_copy_rows_invalid_dst_cell_does_nothing(): void
    {
        $spreadsheet = new Spreadsheet();
        $sheet = $spreadsheet->getActiveSheet();

        $sheet->setCellValue('A1', 'Test');

        // Should not throw, just return silently
        ExcelHelper::copyRows($sheet, 'A1:B1', 'INVALID');

        $this->assertNull($sheet->getCell('C1')->getValue());
    }

    public function test_copy_rows_to_different_sheet(): void
    {
        $spreadsheet = new Spreadsheet();
        $srcSheet = $spreadsheet->getActiveSheet();
        $spreadsheet->createSheet();
        $dstSheet = $spreadsheet->getSheet(1);

        $srcSheet->setCellValue('A1', 'Source');
        $srcSheet->setCellValue('B1', 'Data');

        ExcelHelper::copyRows($srcSheet, 'A1:B1', 'A1', $dstSheet);

        $this->assertEquals('Source', $dstSheet->getCell('A1')->getValue());
        $this->assertEquals('Data', $dstSheet->getCell('B1')->getValue());
    }

    public function test_copy_style_xf_collection_transfers_styles(): void
    {
        $src = new Spreadsheet();
        $dst = new Spreadsheet();

        $srcSheet = $src->getActiveSheet();
        $srcSheet->getStyle('A1')->getFont()->setBold(true);

        $srcCount = count($src->getCellXfCollection());

        ExcelHelper::copyStyleXFCollection($src, $dst);

        $dstCount = count($dst->getCellXfCollection());

        $this->assertGreaterThanOrEqual($srcCount, $dstCount);
    }

    public function test_copy_rows_copies_single_row(): void
    {
        $spreadsheet = new Spreadsheet();
        $sheet = $spreadsheet->getActiveSheet();

        $sheet->setCellValue('A1', 100);
        $sheet->setCellValue('B1', 200);

        ExcelHelper::copyRows($sheet, 'A1:B1', 'D1');

        $this->assertEquals(100, $sheet->getCell('D1')->getValue());
        $this->assertEquals(200, $sheet->getCell('E1')->getValue());
    }
}