Logan
196 lines
6.8 KiB
Python
196 lines
6.8 KiB
Python
import asyncio
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from contextlib import asynccontextmanager
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from fastapi import FastAPI
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from app.config import settings
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from app.models import SystemConfig
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from app.internal.logger import logger
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from app.internal.mqtt_manager import mqtt_manager
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from app.internal import credentials
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from app.internal.metadata_watcher import metadata_watcher
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from app.internal.call_recorder import call_recorder
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from app.internal.discord_radio import radio_bot
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from app.internal.config_manager import (
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load_node_config,
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save_node_config,
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)
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from app.routers import api, ui
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# ---------------------------------------------------------------------------
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# Event handlers wired up at startup
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# ---------------------------------------------------------------------------
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async def on_call_start(data: dict):
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radio_bot.start_stream()
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await mqtt_manager.publish_status("recording")
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await mqtt_manager.publish_metadata("call_start", data)
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await call_recorder.start_recording(data["call_id"])
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async def on_call_end(data: dict):
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radio_bot.stop_stream()
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file_path = await call_recorder.stop_recording()
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if file_path:
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node_cfg = load_node_config()
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audio_url = await call_recorder.upload_recording(
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file_path,
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data["call_id"],
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talkgroup_id=data.get("tgid"),
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talkgroup_name=data.get("tgid_name"),
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system_id=node_cfg.assigned_system_id,
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)
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if audio_url:
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data["audio_url"] = audio_url
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else:
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logger.error(f"Audio upload failed for call {data['call_id']}. Verify C2_URL and Node API Key.")
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else:
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logger.warning(
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f"No recording file generated for call {data['call_id']} "
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"— call may have been too short or Icecast unreachable."
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)
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await mqtt_manager.publish_metadata("call_end", data)
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await mqtt_manager.publish_status("online")
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async def on_command(payload: dict):
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action = payload.get("action")
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logger.info(f"Command received: {action}")
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if action == "discord_join":
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token = payload.get("token")
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if not token:
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logger.error("discord_join command missing token — ignoring.")
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return
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await radio_bot.join(
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guild_id=int(payload["guild_id"]),
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channel_id=int(payload["channel_id"]),
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token=token,
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call_active=metadata_watcher.is_active,
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)
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elif action == "discord_leave":
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await radio_bot.leave()
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elif action == "op25_restart":
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from app.internal.op25_client import op25_client
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await op25_client.stop()
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await asyncio.sleep(2)
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await op25_client.start()
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else:
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logger.warning(f"Unknown command: {action}")
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async def on_api_key(payload: dict):
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key = payload.get("api_key")
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if key:
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credentials.save_api_key(key)
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logger.info("Node API key received and saved.")
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def _to_hz(freq) -> int:
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"""Convert a frequency to Hz. Accepts MHz floats (< 1e6) or Hz ints."""
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f = float(freq)
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return int(f * 1_000_000) if f < 1_000_000 else int(f)
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async def _generate_op25_config(config: SystemConfig) -> bool:
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"""Translate a SystemConfig (Firestore format) into OP25 active.cfg.json + op25.liq."""
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from app.internal.op25_client import op25_client
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raw = config.config
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payload = {
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"type": config.type,
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"systemName": config.name,
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"channels": [_to_hz(ch) for ch in raw.get("control_channels", [])],
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"tags": [
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{"talkgroup": str(tg.get("name", "")), "tagDec": int(tg["id"])}
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for tg in raw.get("talkgroups", [])
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if tg.get("id") is not None
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],
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"whitelist": [int(tg["id"]) for tg in raw.get("talkgroups", []) if tg.get("id") is not None],
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"icecastConfig": {
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"icecast_host": settings.icecast_host,
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"icecast_port": settings.icecast_port,
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"icecast_mountpoint": settings.icecast_mount,
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"icecast_password": settings.icecast_source_password,
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},
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}
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return await op25_client.generate_config(payload)
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async def on_config_push(payload: dict):
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"""C2 pushes a system config — translate it to OP25 format and restart OP25."""
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try:
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config = SystemConfig(**payload)
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except Exception as e:
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logger.error(f"Invalid config push payload: {e}")
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return
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node_cfg = load_node_config()
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node_cfg.assigned_system_id = config.system_id
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node_cfg.system_config = config
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node_cfg.configured = True
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save_node_config(node_cfg)
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from app.internal.op25_client import op25_client
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if not await _generate_op25_config(config):
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logger.error(f"Failed to generate OP25 config for {config.name}")
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return
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await op25_client.stop()
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await asyncio.sleep(2)
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await op25_client.start()
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logger.info(f"Config push applied: {config.name}")
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# ---------------------------------------------------------------------------
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# App lifecycle
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# ---------------------------------------------------------------------------
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@asynccontextmanager
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async def lifespan(app: FastAPI):
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logger.info(f"Edge node starting — ID: {settings.node_id}")
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# Load persisted credentials (API key provisioned by C2 after approval)
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credentials.load()
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# Wire callbacks
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metadata_watcher.on_call_start = on_call_start
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metadata_watcher.on_call_end = on_call_end
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mqtt_manager.on_command = on_command
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mqtt_manager.on_config_push = on_config_push
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mqtt_manager.on_api_key = on_api_key
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# Start services (radio_bot starts on-demand when a discord_join command arrives)
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await mqtt_manager.connect()
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await metadata_watcher.start()
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await call_recorder.start() # persistent Icecast stream buffer
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# Report initial status and resume OP25 if node was already configured before this restart
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node_cfg = load_node_config()
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initial_status = "online" if node_cfg.configured else "unconfigured"
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await mqtt_manager.publish_status(initial_status)
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if node_cfg.configured and node_cfg.system_config:
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from app.internal.op25_client import op25_client
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logger.info("Node is configured — waiting for OP25 API then generating config.")
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for attempt in range(10):
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if await _generate_op25_config(node_cfg.system_config):
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await op25_client.start()
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break
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logger.warning(f"OP25 not ready yet (attempt {attempt + 1}/10), retrying in 3s…")
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await asyncio.sleep(3)
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heartbeat_task = asyncio.create_task(mqtt_manager.heartbeat_loop())
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yield # --- app running ---
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logger.info("Edge node shutting down.")
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heartbeat_task.cancel()
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await metadata_watcher.stop()
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await call_recorder.stop()
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await radio_bot.stop()
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await mqtt_manager.disconnect()
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app = FastAPI(title=f"DRB Edge Node — {settings.node_id}", lifespan=lifespan)
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app.include_router(api.router)
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app.include_router(ui.router)
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