root
46 lines
1.3 KiB
PHP
46 lines
1.3 KiB
PHP
<?php
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namespace App\Services\Files;
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use Illuminate\Support\Facades\DB;
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class ExamDraftDownloadNameService
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{
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public function build(string $filename, string $subdir): string
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{
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$column = $subdir === 'finals' ? 'final_file' : 'teacher_file';
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$row = DB::table('exam_drafts as ed')
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->select('ed.version', 'ed.exam_type', 'ed.class_section_id', 'cs.class_section_name')
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->leftJoin('classSection as cs', 'cs.class_section_id', '=', 'ed.class_section_id')
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->where('ed.' . $column, $filename)
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->limit(1)
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->first();
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$row = $row ? (array) $row : [];
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$classLabel = trim((string) ($row['class_section_name'] ?? ('Class' . ($row['class_section_id'] ?? '0'))));
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$typeLabel = trim((string) ($row['exam_type'] ?? 'Exam'));
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$version = 'v' . max(1, (int) ($row['version'] ?? 1));
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$parts = array_filter([
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$this->slugify($classLabel),
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$this->slugify($typeLabel),
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$version,
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]);
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return implode('_', $parts);
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}
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private function slugify(string $value): string
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{
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$value = trim($value);
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$value = preg_replace('/[^\p{L}\p{N}]+/u', '_', $value);
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$value = trim($value, '_');
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if ($value === '') {
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return 'Exam';
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}
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return mb_strtolower($value);
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}
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}
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