<?php

declare(strict_types=1);

use App\Services\Supplier\SupplierCsvParser;
use Illuminate\Support\Facades\Log;
use Tests\TestCase;

uses(TestCase::class);

beforeEach(function () {
    $this->parser = new SupplierCsvParser;
});

it('parses empty CSV → yields nothing', function () {
    $rows = iterator_to_array($this->parser->parse(''));
    expect($rows)->toBeEmpty();
});

it('parses 1 row → yields 1 struct with vid/project/phone/time', function () {
    $csv = "vid;project;tag;phone;phones;time\n"
         ."1234;B1_example.com;;79991234567;79991234567;1715432400\n";

    $rows = iterator_to_array($this->parser->parse($csv));

    expect($rows)->toHaveCount(1);
    expect($rows[0])->toMatchArray([
        'vid' => '1234',
        'project' => 'B1_example.com',
        'phone' => '79991234567',
        'time' => 1715432400,
    ]);
});

it('parses 1000 rows without OOM (streaming generator)', function () {
    $lines = ['vid;project;tag;phone;phones;time'];
    for ($i = 1; $i <= 1000; $i++) {
        $lines[] = "{$i};B1_test.com;;79991234567;79991234567;1715432400";
    }
    $csv = implode("\n", $lines)."\n";

    $count = 0;
    foreach ($this->parser->parse($csv) as $_) {
        $count++;
    }

    expect($count)->toBe(1000);
});

it('skips malformed rows with missing columns + logs warning', function () {
    Log::spy();

    $csv = "vid;project;tag;phone;phones;time\n"
         ."1234;B1_example.com;;79991234567;79991234567;1715432400\n"
         ."broken-row-only-one-column\n"
         ."5678;B1_another.com;;79991234567;79991234567;1715432500\n";

    $rows = iterator_to_array($this->parser->parse($csv));

    expect($rows)->toHaveCount(2);
    expect($rows[0]['vid'])->toBe('1234');
    expect($rows[1]['vid'])->toBe('5678');

    Log::shouldHaveReceived('warning')
        ->with('supplier_csv_parser.malformed_row', Mockery::any())
        ->once();
});

it('handles BOM + CRLF line endings', function () {
    $bom = "\xEF\xBB\xBF";
    $csv = $bom."vid;project;tag;phone;phones;time\r\n"
         ."1234;B1_example.com;;79991234567;79991234567;1715432400\r\n";

    $rows = iterator_to_array($this->parser->parse($csv));

    expect($rows)->toHaveCount(1);
    expect($rows[0]['vid'])->toBe('1234');
});
