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"""Strategy Engine Service entry point."""
import asyncio
from pathlib import Path
from shared.broker import RedisBroker
from shared.healthcheck import HealthCheckServer
from shared.logging import setup_logging
from shared.metrics import ServiceMetrics
from shared.notifier import TelegramNotifier
from strategy_engine.config import StrategyConfig
from strategy_engine.engine import StrategyEngine
from strategy_engine.plugin_loader import load_strategies
# The strategies directory lives alongside the installed package
STRATEGIES_DIR = Path(__file__).parent.parent.parent.parent / "strategies"
# Health check port: base (HEALTH_PORT, default 8080) + offset
# data-collector: +0 (8080), strategy-engine: +1 (8081)
# order-executor: +2 (8082), portfolio-manager: +3 (8083)
HEALTH_PORT_OFFSET = 1
async def process_symbol(engine: StrategyEngine, stream: str, log) -> None:
"""Process candles for a single symbol stream."""
last_id = "$"
log.info("engine_loop_start", stream=stream)
while True:
last_id = await engine.process_once(stream, last_id)
async def run() -> None:
config = StrategyConfig()
log = setup_logging("strategy-engine", config.log_level, config.log_format)
metrics = ServiceMetrics("strategy_engine")
notifier = TelegramNotifier(
bot_token=config.telegram_bot_token,
chat_id=config.telegram_chat_id,
)
broker = RedisBroker(config.redis_url)
strategies = load_strategies(STRATEGIES_DIR)
for strategy in strategies:
params = config.strategy_params.get(strategy.name, {})
strategy.configure(params)
log.info("loaded_strategies", count=len(strategies), names=[s.name for s in strategies])
engine = StrategyEngine(broker=broker, strategies=strategies)
health = HealthCheckServer(
"strategy-engine",
port=config.health_port + HEALTH_PORT_OFFSET,
auth_token=config.metrics_auth_token,
)
health.register_check("redis", broker.ping)
await health.start()
metrics.service_up.labels(service="strategy-engine").set(1)
tasks = []
try:
for symbol in config.symbols:
stream = f"candles.{symbol.replace('/', '_')}"
task = asyncio.create_task(process_symbol(engine, stream, log))
tasks.append(task)
# Wait for all symbol processors (they run forever until cancelled)
await asyncio.gather(*tasks)
except Exception as exc:
log.error("fatal_error", error=str(exc))
await notifier.send_error(str(exc), "strategy-engine")
raise
finally:
for task in tasks:
task.cancel()
metrics.service_up.labels(service="strategy-engine").set(0)
await notifier.close()
await broker.close()
def main() -> None:
asyncio.run(run())
if __name__ == "__main__":
main()
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