feat: enhance Dockerfile for SQLite support and update main.go for MySQL connection; add sensor creation endpoint and improve wait-for-mqtt script

readme.md

@@ -6,12 +6,12 @@ Repository: https://git.piskot.si/SeminarM2/lambdaiot-core
 
 ## Features ✅
 
-- Simple HTTP server with two endpoints:
-  - `GET /health` — basic health check
-  - `GET /hello` — example greeting endpoint
-- Tests for handlers using `httptest`
-- Multi-stage `Dockerfile` for small production images
-- `Makefile` with common tasks (build, run, test, docker-build)
+- HTTP API with health, greeting, auth, device CRUD, sensor creation, MQTT ping, and stored message retrieval
+- JWT-based auth middleware with demo login (`admin`/`password`)
+- MQTT client with startup publish and best-effort subscription to persist `state:` topics into SQLite
+- SQLite sidecar (file) for recent MQTT state messages
+- Multi-stage `Dockerfile` (CGO-enabled for sqlite3) and `Makefile` for common tasks
+- `test/docker-compose.yml` spins up MySQL, Mosquitto, phpMyAdmin, and the server for local integration
 
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@@ -42,16 +42,35 @@ Then run it:
 docker run -p 8080:8080 lambdaiot-core:latest
 ```
 
+Integration stack (MySQL + Mosquitto + server):
+
+```bash
+cd test
+docker compose up -d --build
+```
+
+The compose file seeds the database from `ai-improved.sql` and exposes:
+- API on http://localhost:8080
+- MySQL on localhost:3306 (root/rootpass)
+- Mosquitto on localhost:1883
+- phpMyAdmin on http://localhost:8081
+
 ### Endpoints
 
-- `http://localhost:8080/health` — returns `{ "status": "ok" }`
-- `http://localhost:8080/hello` — returns a small greeting JSON
-- `POST http://localhost:8080/login` — demo login, JSON body: `{ "username": "admin", "password": "password" }`, returns `{ "token": "..." }`
-- `GET http://localhost:8080/protected` — protected endpoint requiring `Authorization: Bearer <token>` header
+- `GET /health` — returns `{ "status": "ok" }`
+- `GET /hello` — greeting JSON
+- `POST /login` — demo login, body `{ "username": "admin", "password": "password" }`, returns `{ "token": "..." }`
+- `GET /protected` — JWT required
+- `GET /devices` — list devices (public) / `POST /devices`, `GET/PUT/DELETE /devices/:id` (JWT)
+- `POST /sensors` — create sensor (JWT)
+- `GET /mqttping` — publish timestamp to MQTT default topic (JWT)
+- `GET /messages` — last stored MQTT state messages from SQLite (JWT)
 
 ### Environment
 
 - `JWT_SECRET` — (optional) secret used to sign tokens; defaults to `secret` for local/dev use
+- `MQTT_*` — configure broker, client ID, topic, username/password
+- `DB_*` — MySQL connection overrides; see `config.toml` defaults in `internal/config`
 
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