feat: NLU routing + audio/image transcription via AI
- NluRouter in AiBot: builds permission-filtered flow catalog, asks AI to route user intent to exact flow key or return chat response - MediaTranscriber: downloads WA media, transcribes audio (Whisper/Gemini), extracts image intent (OpenAI/Gemini/Claude vision) - BotRouter hybrid: text → NormalBot → NLU fallback if no match; audio/image → transcribe → NLU route; sends transcript preview first - Admin IA tab: NLU checkbox with description - Per-company nlu flag saved in config_json Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Lizandro Guarnizo
co-authored by
Claude Sonnet 4.6
Claude Sonnet 4.6
parent
2b859e3dc0
commit
9e36a965c9
@@ -302,6 +302,141 @@ PROMPT;
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. "Responde de forma breve y apropiada según los permisos del usuario. Sin saludos largos.";
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}
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// ── NLU: enrutamiento inteligente ────────────────────────────────────────
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/**
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* Dado un mensaje de texto, decide si enrutar a un flow existente o responder en chat libre.
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* Devuelve: ['action'=>'route','key'=>'flow_key'] | ['action'=>'chat','text'=>'...']
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*/
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public static function routeOrChat(array $company, array $context, string $input): array
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{
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$config = self::getConfig($company);
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$permType = (int)($context['permission_type'] ?? 1);
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$catalog = self::buildFlowCatalog($config, $permType);
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if (empty($catalog)) {
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return ['action' => 'chat', 'text' => ''];
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}
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$systemPrompt = self::buildNluPrompt(
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$company['display_name'] ?? $company['name'] ?? 'la empresa',
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$catalog,
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$permType
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);
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$raw = self::callLlmOnce($systemPrompt, $input, $company);
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if ($raw === null) {
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return ['action' => 'chat', 'text' => ''];
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}
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// Strip markdown fences if AI wrapped JSON
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$clean = trim(preg_replace('/^```(?:json)?\s*/i', '', preg_replace('/\s*```$/m', '', $raw)));
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$json = json_decode($clean, true);
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if (!is_array($json) || !isset($json['action'])) {
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return ['action' => 'chat', 'text' => $clean];
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}
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if ($json['action'] === 'route' && isset($json['key'])) {
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// Validate key exists in flows
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$allFlows = $config['flows'] ?? [];
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foreach ($config['per_type'] ?? [] as $pt) {
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$allFlows = array_merge($allFlows, $pt['flows'] ?? []);
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}
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if (isset($allFlows[$json['key']])) {
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return ['action' => 'route', 'key' => $json['key']];
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}
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}
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return ['action' => 'chat', 'text' => $json['text'] ?? $clean];
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}
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private static function buildFlowCatalog(array $config, int $permType): array
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{
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$flows = $config['flows'] ?? [];
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$menus = $config['menus'] ?? [];
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// Build human labels from menu rows/buttons
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$labels = [];
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foreach ($menus as $menu) {
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foreach ($menu['sections'] ?? [] as $section) {
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foreach ($section['rows'] ?? [] as $row) {
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if (($row['id'] ?? '') !== '') $labels[$row['id']] = $row['title'] ?? $row['id'];
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}
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}
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foreach ($menu['buttons'] ?? [] as $btn) {
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if (($btn['id'] ?? '') !== '') $labels[$btn['id']] = $btn['title'] ?? $btn['id'];
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}
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}
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$catalog = [];
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foreach ($flows as $key => $flow) {
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$type = $flow['type'] ?? 'text';
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$fn = $flow['function'] ?? '';
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$isUpload = in_array($type, ['collect_and_post', 'collect_for_each', 'submit_form'], true);
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$isDownload = ($type === 'function' && $fn === 'api_report');
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// Permission filter:
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// type 1 = solo reporta (upload), type 2 = solo recibe (download), type 3 = ambos
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if ($isUpload && !in_array($permType, [1, 3], true)) continue;
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if ($isDownload && !in_array($permType, [2, 3], true)) continue;
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// Skip purely internal/navigation flows
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if (in_array($type, ['text', 'image'], true) && !$isUpload && !$isDownload) continue;
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$label = $flow['nlu_description'] ?? $labels[$key] ?? $key;
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$dir = $isUpload ? 'subida' : ($isDownload ? 'descarga' : '');
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$catalog[] = ['key' => $key, 'label' => $label, 'dir' => $dir];
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}
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return $catalog;
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}
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private static function buildNluPrompt(string $company, array $catalog, int $permType): string
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{
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$permLabel = match ($permType) {
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1 => 'puede subir/reportar datos al sistema',
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2 => 'puede descargar reportes e informes',
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3 => 'puede subir datos y descargar reportes',
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default => 'acceso básico',
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};
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$lines = array_map(fn($item) =>
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'- ' . $item['key'] . ': "' . $item['label'] . '"' . ($item['dir'] !== '' ? ' [' . $item['dir'] . ']' : ''),
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$catalog
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);
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return "Eres el asistente de {$company}. El usuario {$permLabel}.\n\n"
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. "Opciones disponibles:\n" . implode("\n", $lines) . "\n\n"
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. "Analiza el mensaje y determina si se refiere claramente a una opción.\n\n"
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. "Si sí → responde SOLO este JSON (sin markdown):\n"
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. "{\"action\":\"route\",\"key\":\"<key_exacto>\"}\n\n"
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. "Si no está claro o no hay opción correspondiente → responde SOLO:\n"
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. "{\"action\":\"chat\",\"text\":\"<respuesta corta en español, máx 2 oraciones>\"}\n\n"
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. "No inventes keys. Usa exactamente los keys de la lista.";
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}
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/** Llamada de 1 turno sin historial — para NLU routing. */
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private static function callLlmOnce(string $systemPrompt, string $userMessage, array $company): ?string
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{
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$cfg = self::getConfig($company);
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$provider = $cfg['ai_provider'] ?? env('AI_PROVIDER', 'openai');
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$history = [['role' => 'user', 'content' => $userMessage]];
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$result = match ($provider) {
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'openai' => self::callOpenAI($systemPrompt, $history, $company),
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'gemini' => self::callGemini($systemPrompt, $history, $company),
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'claude' => self::callClaude($systemPrompt, $history, $company),
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default => null,
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};
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return $result['content'] ?? null;
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}
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// ── Shared helpers ────────────────────────────────────────────────────────
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private static function getConfig(array $company): array
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{
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$json = $company['config_json'] ?? '';
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+56
-5
@@ -107,24 +107,75 @@ class BotRouter
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private static function runHybridBot(array $company, array $context, string $input, string $inputType): ?array
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{
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$config = self::getConfig($company);
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$config = self::getConfig($company);
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$nluEnabled = (bool)($config['nlu'] ?? false);
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$aiEnabled = (bool)($config['ai_for_media'] ?? true);
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// Media (image/audio/video/document) → AI handles it if enabled
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// ── Media (audio/imagen) ──────────────────────────────────────────────
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if (self::isMediaType($inputType)) {
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$aiEnabled = (bool)($config['ai_for_media'] ?? true);
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if (!$aiEnabled) {
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return self::categoryMenuFallback($company, $context, $config);
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}
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if ($nluEnabled && in_array($inputType, ['audio', 'image'], true)) {
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$text = $inputType === 'audio'
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? MediaTranscriber::transcribeAudio($input, $company)
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: MediaTranscriber::extractFromImage($input, $company);
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if ($text !== null && trim($text) !== '') {
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self::log("NLU media [{$inputType}]: texto extraído → \"{$text}\"");
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// Confirmar al usuario lo que entendió
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$prefix = $inputType === 'audio' ? '🎤 Transcripción' : '🖼️ Imagen analizada';
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WhatsAppSender::sendText(
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$context['from'],
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"{$prefix}: _{$text}_",
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$context['phone_number_id'] ?? ''
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);
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return self::runNluOnText($company, $context, $text, $config);
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}
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}
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return AiBot::processMedia($company, $context, $inputType, $input);
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}
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// Text / interactive / button → NormalBot only, never AI
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// ── Texto / interactivo: NormalBot primero ────────────────────────────
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$response = self::runNormalBot($company, $context, $input, $inputType);
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if ($response !== null) {
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return $response;
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}
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// NormalBot returned null → show the category greeting menu as fallback
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// NormalBot no reconoció → NLU si está activo, si no menú categoría
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if ($nluEnabled && $inputType === 'text') {
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return self::runNluOnText($company, $context, $input, $config);
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}
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return self::categoryMenuFallback($company, $context, $config);
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}
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private static function runNluOnText(array $company, array $context, string $input, array $config): ?array
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{
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$result = AiBot::routeOrChat($company, $context, $input);
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if ($result['action'] === 'route') {
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$key = $result['key'];
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$botCtx = ConversationContext::getOrCreate((int)$company['id'], $context['from'], 'normal');
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ConversationContext::updateNode((int)$botCtx['id'], $key);
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self::log("NLU: {$context['from']} → flow [{$key}]");
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// Ejecutar con input vacío — NormalBot retoma current_node
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return NormalBot::process($company, $context, '');
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}
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$text = trim($result['text'] ?? '');
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if ($text !== '') {
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self::log("NLU: {$context['from']} → chat libre");
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return [
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'action' => 'send',
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'type' => 'text',
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'to' => $context['from'],
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'payload' => json_encode(['text' => $text]),
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];
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}
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return self::categoryMenuFallback($company, $context, $config);
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}
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@@ -0,0 +1,281 @@
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<?php
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declare(strict_types=1);
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/**
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* Descarga media de WhatsApp y la transcribe/analiza con el proveedor de IA activo.
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* Retorna siempre texto plano para pasar al NluRouter.
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*/
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class MediaTranscriber
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{
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// ── WhatsApp media download ───────────────────────────────────────────────
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private static function downloadMedia(string $mediaId): ?array
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{
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$token = env('WHATSAPP_ACCESS_TOKEN', '');
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if ($token === '') return null;
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// 1) Obtener URL del archivo
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$ch = curl_init("https://graph.facebook.com/v18.0/{$mediaId}");
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curl_setopt_array($ch, [
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CURLOPT_HTTPHEADER => ["Authorization: Bearer {$token}", "User-Agent: bot-palmas360/1.0"],
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CURLOPT_RETURNTRANSFER => true,
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CURLOPT_TIMEOUT => 15,
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]);
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$resp = curl_exec($ch);
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$code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
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curl_close($ch);
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if ($code !== 200 || !$resp) return null;
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$data = json_decode($resp, true);
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$url = $data['url'] ?? '';
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$mime = $data['mime_type'] ?? 'application/octet-stream';
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if ($url === '') return null;
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// 2) Descargar binario
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$ch = curl_init($url);
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curl_setopt_array($ch, [
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CURLOPT_HTTPHEADER => ["Authorization: Bearer {$token}", "User-Agent: bot-palmas360/1.0"],
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CURLOPT_RETURNTRANSFER => true,
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CURLOPT_FOLLOWLOCATION => true,
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CURLOPT_TIMEOUT => 45,
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]);
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$bytes = curl_exec($ch);
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$code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
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curl_close($ch);
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if ($code !== 200 || !$bytes || strlen($bytes) < 100) return null;
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return ['bytes' => $bytes, 'mime' => $mime];
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}
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// ── Audio → texto ─────────────────────────────────────────────────────────
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public static function transcribeAudio(string $mediaId, array $company): ?string
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{
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$cfg = self::getConfig($company);
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$provider = $cfg['ai_provider'] ?? env('AI_PROVIDER', 'openai');
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$media = self::downloadMedia($mediaId);
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if ($media === null) return null;
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return match ($provider) {
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'openai' => self::whisper($media['bytes'], $media['mime'], $cfg),
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'gemini' => self::geminiAudio($media['bytes'], $media['mime'], $cfg),
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default => null, // Claude no soporta audio
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};
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}
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private static function whisper(string $bytes, string $mime, array $cfg): ?string
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{
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$apiKey = $cfg['openai_api_key'] ?? env('OPENAI_API_KEY', '');
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if ($apiKey === '') return null;
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$ext = str_contains($mime, 'ogg') ? 'ogg' : (str_contains($mime, 'mp4') ? 'mp4' : 'ogg');
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$tmpFile = tempnam(sys_get_temp_dir(), 'wa_audio_') . '.' . $ext;
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file_put_contents($tmpFile, $bytes);
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$ch = curl_init('https://api.openai.com/v1/audio/transcriptions');
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curl_setopt_array($ch, [
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CURLOPT_POST => true,
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CURLOPT_POSTFIELDS => [
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'file' => new CURLFile($tmpFile, $mime, 'audio.' . $ext),
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'model' => 'whisper-1',
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'language' => 'es',
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],
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CURLOPT_HTTPHEADER => ["Authorization: Bearer {$apiKey}"],
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CURLOPT_RETURNTRANSFER => true,
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CURLOPT_TIMEOUT => 60,
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]);
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$resp = curl_exec($ch);
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$code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
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curl_close($ch);
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@unlink($tmpFile);
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if ($code !== 200 || !$resp) return null;
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$data = json_decode($resp, true);
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return isset($data['text']) ? trim($data['text']) : null;
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}
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private static function geminiAudio(string $bytes, string $mime, array $cfg): ?string
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{
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$apiKey = $cfg['gemini_api_key'] ?? env('GEMINI_API_KEY', '');
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$model = $cfg['gemini_model'] ?? env('GEMINI_MODEL', 'gemini-2.5-flash');
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if ($apiKey === '') return null;
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// Gemini acepta audio inline como base64
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$payload = json_encode([
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'contents' => [[
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'parts' => [
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['inline_data' => ['mime_type' => $mime, 'data' => base64_encode($bytes)]],
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['text' => 'Transcribe este audio de WhatsApp en español. Devuelve SOLO el texto transcrito, sin explicaciones ni puntuación extra.'],
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],
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]],
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]);
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$url = "https://generativelanguage.googleapis.com/v1beta/models/{$model}:generateContent?key={$apiKey}";
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$ch = curl_init($url);
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curl_setopt_array($ch, [
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CURLOPT_POST => true,
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CURLOPT_POSTFIELDS => $payload,
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CURLOPT_HTTPHEADER => ['Content-Type: application/json'],
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CURLOPT_RETURNTRANSFER => true,
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CURLOPT_TIMEOUT => 60,
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]);
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$resp = curl_exec($ch);
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$code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
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curl_close($ch);
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if ($code !== 200 || !$resp) return null;
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$data = json_decode($resp, true);
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$text = $data['candidates'][0]['content']['parts'][0]['text'] ?? null;
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return $text !== null ? trim($text) : null;
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}
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// ── Imagen → intención/texto ──────────────────────────────────────────────
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public static function extractFromImage(string $mediaId, array $company): ?string
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{
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$cfg = self::getConfig($company);
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$provider = $cfg['ai_provider'] ?? env('AI_PROVIDER', 'openai');
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$media = self::downloadMedia($mediaId);
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if ($media === null) return null;
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$b64 = base64_encode($media['bytes']);
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$mime = $media['mime'];
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$prompt = 'Analiza esta imagen de WhatsApp. Si contiene texto, extráelo. '
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. 'Describe en una oración qué quiere hacer el usuario o qué información contiene. '
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. 'Responde en español, máximo 2 oraciones.';
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return match ($provider) {
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'openai' => self::openaiVision($b64, $mime, $prompt, $cfg),
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'gemini' => self::geminiVision($b64, $mime, $prompt, $cfg),
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'claude' => self::claudeVision($b64, $mime, $prompt, $cfg),
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default => null,
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};
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}
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private static function openaiVision(string $b64, string $mime, string $prompt, array $cfg): ?string
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{
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$apiKey = $cfg['openai_api_key'] ?? env('OPENAI_API_KEY', '');
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$model = $cfg['ai_model'] ?? env('OPENAI_MODEL', 'gpt-4o');
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// Vision requires gpt-4o or gpt-4.1 — downgrade if mini is selected
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if (str_contains($model, 'mini') || str_contains($model, '3.5')) $model = 'gpt-4o';
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if ($apiKey === '') return null;
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$payload = json_encode([
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'model' => $model,
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'max_tokens' => 200,
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'messages' => [[
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'role' => 'user',
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'content' => [
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['type' => 'image_url', 'image_url' => ['url' => "data:{$mime};base64,{$b64}"]],
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['type' => 'text', 'text' => $prompt],
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],
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]],
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]);
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$ch = curl_init('https://api.openai.com/v1/chat/completions');
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curl_setopt_array($ch, [
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CURLOPT_POST => true,
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CURLOPT_POSTFIELDS => $payload,
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CURLOPT_HTTPHEADER => ['Content-Type: application/json', "Authorization: Bearer {$apiKey}"],
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CURLOPT_RETURNTRANSFER => true,
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CURLOPT_TIMEOUT => 30,
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]);
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$resp = curl_exec($ch);
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$code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
|
||||
curl_close($ch);
|
||||
|
||||
if ($code !== 200 || !$resp) return null;
|
||||
|
||||
$data = json_decode($resp, true);
|
||||
$text = $data['choices'][0]['message']['content'] ?? null;
|
||||
return $text !== null ? trim($text) : null;
|
||||
}
|
||||
|
||||
private static function geminiVision(string $b64, string $mime, string $prompt, array $cfg): ?string
|
||||
{
|
||||
$apiKey = $cfg['gemini_api_key'] ?? env('GEMINI_API_KEY', '');
|
||||
$model = $cfg['gemini_model'] ?? env('GEMINI_MODEL', 'gemini-2.5-flash');
|
||||
if ($apiKey === '') return null;
|
||||
|
||||
$payload = json_encode([
|
||||
'contents' => [[
|
||||
'parts' => [
|
||||
['inline_data' => ['mime_type' => $mime, 'data' => $b64]],
|
||||
['text' => $prompt],
|
||||
],
|
||||
]],
|
||||
]);
|
||||
|
||||
$url = "https://generativelanguage.googleapis.com/v1beta/models/{$model}:generateContent?key={$apiKey}";
|
||||
$ch = curl_init($url);
|
||||
curl_setopt_array($ch, [
|
||||
CURLOPT_POST => true,
|
||||
CURLOPT_POSTFIELDS => $payload,
|
||||
CURLOPT_HTTPHEADER => ['Content-Type: application/json'],
|
||||
CURLOPT_RETURNTRANSFER => true,
|
||||
CURLOPT_TIMEOUT => 30,
|
||||
]);
|
||||
$resp = curl_exec($ch);
|
||||
$code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
|
||||
curl_close($ch);
|
||||
|
||||
if ($code !== 200 || !$resp) return null;
|
||||
|
||||
$data = json_decode($resp, true);
|
||||
$text = $data['candidates'][0]['content']['parts'][0]['text'] ?? null;
|
||||
return $text !== null ? trim($text) : null;
|
||||
}
|
||||
|
||||
private static function claudeVision(string $b64, string $mime, string $prompt, array $cfg): ?string
|
||||
{
|
||||
$apiKey = $cfg['claude_api_key'] ?? env('CLAUDE_API_KEY', '');
|
||||
$model = $cfg['claude_model'] ?? env('CLAUDE_MODEL', 'claude-haiku-4-5');
|
||||
if ($apiKey === '') return null;
|
||||
|
||||
$payload = json_encode([
|
||||
'model' => $model,
|
||||
'max_tokens' => 200,
|
||||
'messages' => [[
|
||||
'role' => 'user',
|
||||
'content' => [
|
||||
['type' => 'image', 'source' => ['type' => 'base64', 'media_type' => $mime, 'data' => $b64]],
|
||||
['type' => 'text', 'text' => $prompt],
|
||||
],
|
||||
]],
|
||||
]);
|
||||
|
||||
$ch = curl_init('https://api.anthropic.com/v1/messages');
|
||||
curl_setopt_array($ch, [
|
||||
CURLOPT_POST => true,
|
||||
CURLOPT_POSTFIELDS => $payload,
|
||||
CURLOPT_HTTPHEADER => ['Content-Type: application/json', "x-api-key: {$apiKey}", 'anthropic-version: 2023-06-01'],
|
||||
CURLOPT_RETURNTRANSFER => true,
|
||||
CURLOPT_TIMEOUT => 30,
|
||||
]);
|
||||
$resp = curl_exec($ch);
|
||||
$code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
|
||||
curl_close($ch);
|
||||
|
||||
if ($code !== 200 || !$resp) return null;
|
||||
|
||||
$data = json_decode($resp, true);
|
||||
$text = $data['content'][0]['text'] ?? null;
|
||||
return $text !== null ? trim($text) : null;
|
||||
}
|
||||
|
||||
// ── Helpers ───────────────────────────────────────────────────────────────
|
||||
|
||||
private static function getConfig(array $company): array
|
||||
{
|
||||
$json = $company['config_json'] ?? '';
|
||||
if ($json === '') return [];
|
||||
$cfg = json_decode($json, true);
|
||||
return is_array($cfg) ? $cfg : [];
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user