61 lines
3.2 KiB
PHP
61 lines
3.2 KiB
PHP
<?php
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namespace App\Services\Ai;
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use Illuminate\Database\Query\Builder;
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use Illuminate\Support\Facades\DB;
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final class EvidenceRepository
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{
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public function eligible(): Builder
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{
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return DB::table('ai_sources as s')->join('documents as d', 'd.id', '=', 's.document_id')
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->where('s.status', 'approved')->where('s.purpose', 'investment_information')
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->where('s.valid_until', '>=', now()->toDateString())->where('s.source_date', '<=', now()->toDateString())
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->where('d.status', 'active')->whereNull('d.deleted_at')->whereIn('d.data_classification', ['public', 'internal'])
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->where('d.malware_scan_status', 'clean')->whereColumn('d.malware_scanned_sha256', 'd.sha256')
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->whereColumn('s.document_version', 'd.version_no')->whereColumn('s.document_checksum', 'd.sha256');
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}
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/** @param array<string, mixed> $filters
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* @return list<array<string, mixed>>
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*/
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public function search(string $query, string $language, array $filters = []): array
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{
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$configuration = $language === 'pt' ? 'portuguese' : 'english';
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$builder = $this->eligible()->join('ai_chunks as c', 'c.source_id', '=', 's.id')
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->where('s.language', $language)->whereRaw('c.lexical @@ websearch_to_tsquery(?::regconfig, ?)', [$configuration, $query])
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->select(['c.id as chunk_id', 's.id as source_id', 's.document_id', 's.document_version', 's.title', 's.language',
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's.nature', 's.source_url', 's.source_date', 's.valid_until', 'c.content', 'c.checksum'])
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->selectRaw('ts_rank_cd(c.lexical, websearch_to_tsquery(?::regconfig, ?)) as rank', [$configuration, $query]);
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if (! empty($filters['source_id'])) {
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$builder->where('s.id', $filters['source_id']);
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}
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if (! empty($filters['nature'])) {
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$builder->where('s.nature', $filters['nature']);
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}
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if ($filters['public_only'] ?? false) {
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$builder->where('d.data_classification', 'public')->where('d.rights_status', '!=', 'restricted')
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->whereExists(fn ($q) => $q->selectRaw('1')->from('portal_resources as r')->whereColumn('r.document_id', 'd.id')->where('r.published', true)->where('r.rights_status', '!=', 'restricted'));
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}
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return array_values($builder->orderByDesc('rank')->orderBy('c.id')->limit((int) config('investmoz_ai.retrieval_limit', 5))
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->get()->map(fn ($row) => (array) $row)->all());
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}
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/** @return list<array<string, mixed>> */
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public function excerpts(string $id): array
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{
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return array_values($this->eligible()->join('ai_chunks as c', 'c.source_id', '=', 's.id')->where('s.id', $id)
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->select(['c.id as chunk_id', 's.id as source_id', 's.document_id', 's.document_version', 's.title', 's.language',
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's.nature', 's.source_url', 's.source_date', 's.valid_until', 'c.content', 'c.checksum'])
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->orderBy('c.position')->limit(3)->get()->map(fn ($row) => (array) $row)->all());
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}
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/** @param array<array-key, string> $ids */
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public function allStillEligible(array $ids): bool
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{
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return $ids === [] || $this->eligible()->whereIn('s.id', $ids)->count() === count(array_unique($ids));
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}
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}
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