Build Laravel 13 ticket assistant with Docker, Livewire admin, and helpdesk scraper command
This commit is contained in:
83
app/Services/AIClassifierService.php
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83
app/Services/AIClassifierService.php
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<?php
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namespace App\Services;
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use App\DTOs\ArticleCandidateDTO;
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use App\DTOs\ClassificationResultDTO;
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use App\Exceptions\OllamaUnavailableException;
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use Illuminate\Support\Facades\Http;
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use Throwable;
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class AIClassifierService
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{
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/** @param array<ArticleCandidateDTO> $candidates */
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public function rank(string $ticketMessage, array $candidates): ClassificationResultDTO
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{
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if ($candidates === []) {
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return new ClassificationResultDTO(null, 0.0, 'No article candidates available');
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}
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$articlesBlock = collect($candidates)
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->map(fn (ArticleCandidateDTO $item, int $idx) => sprintf(
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"%d. article_id=%d\nTitle: %s\nContent: %s",
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$idx + 1,
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$item->articleId,
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$item->title,
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$item->content
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))
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->implode("\n\n");
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$prompt = <<<PROMPT
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You are a support assistant.
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User question:
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"{$ticketMessage}"
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Articles:
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{$articlesBlock}
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Task:
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- Select the best matching article
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- Return:
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- article_id
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- confidence (0-1)
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- short explanation
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Respond in JSON ONLY.
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PROMPT;
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$baseUrl = rtrim((string) config('services.ollama.base_url'), '/');
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try {
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$response = Http::timeout((int) config('services.ollama.timeout', 30))
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->post($baseUrl.'/api/generate', [
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'model' => config('services.ollama.chat_model', 'llama3'),
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'prompt' => $prompt,
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'stream' => false,
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])
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->throw()
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->json();
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} catch (Throwable $e) {
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throw new OllamaUnavailableException('Ollama generate endpoint is unavailable', 0, $e);
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}
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$text = (string) ($response['response'] ?? '{}');
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$decoded = json_decode($text, true);
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if (!is_array($decoded)) {
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return new ClassificationResultDTO(
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articleId: $candidates[0]->articleId,
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confidence: 0.35,
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explanation: 'LLM returned invalid JSON; defaulted to top semantic match.',
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rawResponse: ['raw' => $text]
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);
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}
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return new ClassificationResultDTO(
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articleId: isset($decoded['article_id']) ? (int) $decoded['article_id'] : $candidates[0]->articleId,
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confidence: isset($decoded['confidence']) ? (float) $decoded['confidence'] : 0.35,
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explanation: (string) ($decoded['explanation'] ?? 'No explanation provided.'),
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rawResponse: $decoded
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);
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}
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}
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21
app/Services/AdminArticleService.php
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21
app/Services/AdminArticleService.php
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<?php
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namespace App\Services;
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use App\Models\Article;
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class AdminArticleService
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{
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public function paginate(int $perPage = 10)
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{
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return Article::query()->latest()->paginate($perPage);
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}
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public function create(string $title, string $content): Article
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{
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return Article::query()->create([
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'title' => trim($title),
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'content' => trim($content),
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]);
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}
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}
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42
app/Services/AdminDashboardService.php
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42
app/Services/AdminDashboardService.php
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<?php
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namespace App\Services;
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use App\Models\AIDecision;
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use App\Models\Article;
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use App\Models\Feedback;
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use App\Models\Ticket;
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class AdminDashboardService
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{
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public function stats(): array
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{
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return [
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'articles_count' => Article::query()->count(),
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'tickets_count' => Ticket::query()->count(),
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'decisions_count' => AIDecision::query()->count(),
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'feedback_accuracy' => $this->feedbackAccuracy(),
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];
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}
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public function recentTickets(int $limit = 10)
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{
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return Ticket::query()->latest()->limit($limit)->get();
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}
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public function recentDecisions(int $limit = 10)
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{
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return AIDecision::query()->with(['ticket', 'article'])->latest()->limit($limit)->get();
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}
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private function feedbackAccuracy(): ?float
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{
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$total = Feedback::query()->count();
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if ($total === 0) {
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return null;
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}
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$correct = Feedback::query()->where('is_correct', true)->count();
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return round(($correct / $total) * 100, 2);
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}
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}
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16
app/Services/AdminTicketService.php
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16
app/Services/AdminTicketService.php
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<?php
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namespace App\Services;
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use App\Models\Ticket;
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class AdminTicketService
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{
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public function paginateWithDecision(int $perPage = 10)
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{
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return Ticket::query()
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->with(['decisions.article'])
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->latest()
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->paginate($perPage);
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}
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}
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47
app/Services/EmbeddingService.php
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47
app/Services/EmbeddingService.php
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@@ -0,0 +1,47 @@
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<?php
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namespace App\Services;
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use App\Exceptions\OllamaUnavailableException;
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use App\Models\EmbeddingCache;
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use Illuminate\Support\Facades\Http;
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use Throwable;
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class EmbeddingService
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{
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public function embed(string $text): array
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{
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$hash = hash('sha256', $text);
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$cached = EmbeddingCache::query()->where('text_hash', $hash)->first();
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if ($cached !== null) {
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return $cached->embedding;
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}
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$baseUrl = rtrim((string) config('services.ollama.base_url'), '/');
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try {
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$response = Http::timeout((int) config('services.ollama.timeout', 30))
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->post($baseUrl.'/api/embeddings', [
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'model' => config('services.ollama.embed_model', 'nomic-embed-text'),
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'prompt' => $text,
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])
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->throw()
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->json();
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} catch (Throwable $e) {
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throw new OllamaUnavailableException('Ollama embedding endpoint is unavailable', 0, $e);
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}
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$embedding = $response['embedding'] ?? [];
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if (!is_array($embedding) || $embedding === []) {
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throw new OllamaUnavailableException('Ollama embedding response did not include a valid embedding');
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}
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EmbeddingCache::query()->updateOrCreate(
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['text_hash' => $hash],
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['text' => $text, 'embedding' => $embedding]
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);
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return $embedding;
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}
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}
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170
app/Services/HelpdeskImportService.php
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170
app/Services/HelpdeskImportService.php
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@@ -0,0 +1,170 @@
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<?php
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namespace App\Services;
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use App\Models\Article;
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use Illuminate\Support\Facades\Http;
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use Illuminate\Support\Str;
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class HelpdeskImportService
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{
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private const DEFAULT_BASE_URL = 'https://www.internettoday.nl/helpdesk';
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public function import(?string $baseUrl = null, bool $dryRun = false, ?int $limit = null): array
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{
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$baseUrl = rtrim($baseUrl ?: self::DEFAULT_BASE_URL, '/');
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$rootHtml = $this->fetch($baseUrl);
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$categories = $this->extractCategories($rootHtml);
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$sectionUrls = $this->buildSectionUrls($baseUrl, $categories);
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$articleUrls = $this->collectArticleUrls($baseUrl, $rootHtml, $sectionUrls);
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if ($limit !== null && $limit > 0) {
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$articleUrls = array_slice($articleUrls, 0, $limit);
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}
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$imported = 0;
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$updated = 0;
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$skipped = 0;
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foreach ($articleUrls as $articleUrl) {
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$parsed = $this->parseArticlePage($articleUrl);
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if ($parsed === null) {
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$skipped++;
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continue;
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}
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if ($dryRun) {
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$imported++;
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continue;
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}
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[$title, $content] = $parsed;
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$result = Article::withoutEvents(function () use ($title, $content) {
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return Article::query()->updateOrCreate(
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['title' => $title],
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['content' => $content]
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);
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});
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if ($result->wasRecentlyCreated) {
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$imported++;
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} else {
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$updated++;
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}
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}
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return [
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'categories' => count($categories),
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'sections' => count($sectionUrls),
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'article_urls' => count($articleUrls),
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'imported' => $imported,
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'updated' => $updated,
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'skipped' => $skipped,
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'dry_run' => $dryRun,
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];
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}
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private function fetch(string $url): string
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{
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return Http::timeout(30)
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->retry(2, 300)
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->get($url)
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->throw()
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->body();
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}
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private function extractCategories(string $html): array
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{
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if (!preg_match('/const\s+categories\s*=\s*(\[.*?\]);/s', $html, $matches)) {
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return [];
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}
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$decoded = json_decode($matches[1], true);
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return is_array($decoded) ? $decoded : [];
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}
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private function buildSectionUrls(string $baseUrl, array $categories): array
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{
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$urls = [];
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foreach ($categories as $category) {
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if (!isset($category['id'], $category['slug'])) {
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continue;
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}
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$urls[] = sprintf('%s/%d/%s', $baseUrl, (int) $category['id'], (string) $category['slug']);
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foreach (($category['children'] ?? []) as $child) {
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if (!isset($child['id'], $child['slug'])) {
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continue;
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}
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$urls[] = sprintf('%s/%d/%s', $baseUrl, (int) $child['id'], (string) $child['slug']);
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}
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}
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return array_values(array_unique($urls));
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}
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private function collectArticleUrls(string $baseUrl, string $rootHtml, array $sectionUrls): array
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{
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$urls = [];
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foreach (array_merge([$baseUrl], $sectionUrls) as $url) {
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try {
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$html = $url === $baseUrl ? $rootHtml : $this->fetch($url);
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} catch (\Throwable) {
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continue;
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}
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preg_match_all('/https:\/\/www\.internettoday\.nl\/helpdesk\/(\d+)-[a-z0-9\-]+/i', $html, $matches);
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foreach (($matches[0] ?? []) as $match) {
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$urls[] = strtolower($match);
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}
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}
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return array_values(array_unique($urls));
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}
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private function parseArticlePage(string $url): ?array
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{
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try {
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$html = $this->fetch($url);
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} catch (\Throwable) {
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return null;
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}
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if (!preg_match('/<h1[^>]*>(.*?)<\/h1>/is', $html, $titleMatch)) {
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return null;
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}
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$title = $this->sanitizeText($titleMatch[1]);
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if ($title === '') {
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return null;
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}
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if (!preg_match('/<div\s+class="main_1_column">\s*(<p.*?<\/p>)\s*<\/div>/is', $html, $contentMatch)) {
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return null;
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}
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$contentRaw = $contentMatch[1];
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$contentRaw = preg_replace('/<\s*br\s*\/?\s*>/i', "\n", $contentRaw) ?? $contentRaw;
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$contentRaw = preg_replace('/<\/p>\s*<p[^>]*>/i', "\n\n", $contentRaw) ?? $contentRaw;
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$content = $this->sanitizeText($contentRaw);
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if ($content === '') {
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return null;
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}
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$content = "Source: {$url}\n\n{$content}";
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return [$title, Str::limit($content, 64000, '')];
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}
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private function sanitizeText(string $value): string
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{
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$decoded = html_entity_decode(strip_tags($value), ENT_QUOTES | ENT_HTML5, 'UTF-8');
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$decoded = preg_replace('/\s+/', ' ', $decoded) ?? $decoded;
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return trim($decoded);
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}
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}
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47
app/Services/SemanticSearchService.php
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47
app/Services/SemanticSearchService.php
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@@ -0,0 +1,47 @@
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<?php
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namespace App\Services;
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use App\DTOs\ClassificationResultDTO;
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use App\Models\AIDecision;
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use App\Models\Article;
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use App\Models\Ticket;
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use App\Repositories\Contracts\ArticleRepositoryInterface;
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class SemanticSearchService
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{
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public function __construct(
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private readonly EmbeddingService $embeddingService,
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private readonly ArticleRepositoryInterface $articleRepository,
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private readonly AIClassifierService $classifierService,
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) {}
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public function findBestArticle(Ticket $ticket): array
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{
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$embedding = $ticket->embedding ?? $this->embeddingService->embed($ticket->message);
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if ($ticket->embedding === null) {
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$ticket->embedding = $embedding;
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$ticket->save();
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}
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$candidates = $this->articleRepository->findSimilarByEmbedding($embedding, 5);
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$classification = $this->classifierService->rank($ticket->message, $candidates);
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$bestArticle = $classification->articleId ? Article::find($classification->articleId) : null;
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AIDecision::query()->create([
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'ticket_id' => $ticket->id,
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'article_id' => $bestArticle?->id,
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'confidence' => $classification->confidence,
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'explanation' => $classification->explanation,
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'raw_response' => $classification->rawResponse,
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]);
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return [
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'best_article' => $bestArticle,
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'confidence' => $classification->confidence,
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'explanation' => $classification->explanation,
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'top_3_candidates' => collect($candidates)->take(3)->map(fn ($c) => $c->toArray())->values()->all(),
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];
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}
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}
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Reference in New Issue
Block a user