# Axynia Gateway Webchat
Gateway WebSocket persistente para transportar mensajes entre Deep Chat y la plataforma Axynia. La versión actual implementa únicamente la **Fase A de eco** definida en la especificación v0.02.
## Alcance actual
- Laravel 13 como contenedor, configuración y logging.
- Workerman 5.2 como servidor WebSocket y event loop.
- Escucha exclusiva en `127.0.0.1:3100` y path `/ws`.
- Validación sintáctica de un único `chatbot_id` UUID.
- Recepción del Request nativo de Deep Chat.
- Respuesta `{"role":"ai","text":"Recibido: ..."}`.
- Límites de frame, texto y profundidad JSON.
- Heartbeat WebSocket nativo mediante un timer global.
- Contexto efímero y limpieza de conexiones.
- Logs técnicos sin contenido conversacional.
Esta fase **no** valida `Origin`, crea sesiones, accede a bases de datos ni utiliza MQTT.
El `composer.lock` actual requiere PHP 8.4.1 o superior, con las extensiones `json`, `mbstring`, `pcntl` y `posix` en el servidor Linux.
## Configuración
```dotenv
GATEWAY_ID=gateway-01
GATEWAY_HOST=127.0.0.1
GATEWAY_PORT=3100
GATEWAY_PATH=/ws
GATEWAY_WORKERS=1
GATEWAY_LOG_PAYLOADS=false
HEARTBEAT_INTERVAL_MS=25000
MAX_FRAME_BYTES=65536
MAX_MESSAGE_CHARS=8000
MAX_JSON_DEPTH=32
```
## Ejecución y pruebas
```bash
php gateway.php start
php artisan test
```
El proceso permanece en foreground y escribe su actividad técnica en pantalla.
La ejecución como servicio, supervisión, rotación y recolección externa de logs
pertenecen al equipo de infraestructura y quedan fuera del alcance del proyecto.
Los eventos del Gateway se escriben simultáneamente en el log diario de Laravel y
en `stderr`, por lo que aparecen directamente al ejecutar `php gateway.php start`.
Por cada mensaje se registran `ws.message.received` y `ws.message.echoed`, con sus
identificadores, cantidad de bytes y duración. En desarrollo puede establecerse
`GATEWAY_LOG_PAYLOADS=true` para incluir completos el payload recibido y la
respuesta enviada como bloques JSON indentados y coloreados en consola. Las claves,
textos, números, booleanos y valores nulos utilizan colores diferentes. Las entradas
que no sean UTF-8 se representan en Base64.
Solicitud:
```json
{"messages":[{"role":"user","text":"Hola"}]}
```
Respuesta:
```json
{"role":"ai","text":"Recibido: Hola"}
```
## Framework base
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- [Real-time event broadcasting](https://laravel.com/docs/broadcasting).
Laravel is accessible, powerful, and provides tools required for large, robust applications.
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```bash
composer require laravel/boost --dev
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