matthieu
fce468cf76
- Add FastAPI service exposing /health, /last, /send/esclave, /send/dsd, /send/custom - Implement SerialBridge aligned with legacy Tkinter behavior (open delay 2s, post-write 0.5s, read in_waiting once) - Enforce single in-flight serial request (non-blocking lock, returns 409 BUSY) - Add environment-based serial configuration (.env + systemd EnvironmentFile) - Document installation, systemd service, and Tailscale usage (direct IP and tailscale serve)
60 lines
1.3 KiB
Python
60 lines
1.3 KiB
Python
import os
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import time
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import socket
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from fastapi import FastAPI, HTTPException, Query
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from pydantic import BaseModel
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from .serial_bridge import SerialBridge, SerialConfig, hex2b
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from .mock_bridge import MockBridge
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TRAME_ESCLAVE = b"\x01\x0D\x0A"
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TRAME_DSD = b"\x01\x10\x39\x39\x4D\x0D\x0A"
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def env(name: str, default: str) -> str:
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return os.getenv(name, default)
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APP_MODE = env("APP_MODE", "mock").strip().lower()
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app = FastAPI(title="Pont bascule API", version="1.2")
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if APP_MODE == "serial":
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cfg = SerialConfig(
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port=env("SERIAL_PORT", "/dev/ttyUSB0"),
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baudrate=int(env("SERIAL_BAUDRATE", "9600")),
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)
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bridge = SerialBridge(cfg)
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else:
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cfg = None
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bridge = MockBridge()
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class CustomReq(BaseModel):
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hex: str
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class EchoReq(BaseModel):
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msg: str
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@app.get("/health")
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def health():
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return {
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"ok": True,
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"mode": APP_MODE,
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"busy": bridge.busy(),
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"hostname": socket.gethostname(),
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"timestamp": time.time(),
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}
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@app.get("/test/ping")
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def test_ping():
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return {"pong": True}
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@app.post("/test/echo")
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def test_echo(req: EchoReq):
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return {"echo": req.msg}
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@app.post("/send/esclave")
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def send_esclave():
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res = bridge.send_and_read_once(TRAME_ESCLAVE)
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if res.get("busy"):
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raise HTTPException(status_code=409, detail=res["error"])
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return res
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