import logging
import sys
from urllib.parse import quote

from celery import Celery

from foundation.infrastructure.config.config import config_handler

logging.getLogger("pymilvus").setLevel(logging.ERROR)


def _redis_url() -> str:
    host = config_handler.get("redis", "REDIS_HOST", "localhost")
    port = config_handler.get("redis", "REDIS_PORT", "6379")
    password = config_handler.get("redis", "REDIS_PASSWORD", "")
    db = config_handler.get("redis", "REDIS_DB", "0")
    if password:
        return f"redis://:{quote(password, safe='')}@{host}:{port}/{db}"
    return f"redis://{host}:{port}/{db}"


redis_url = _redis_url()

app = Celery(
    "construction_write_tasks",
    broker=redis_url,
    backend=redis_url,
    include=["foundation.infrastructure.messaging.tasks"],
)

app.conf.update(
    task_serializer="json",
    accept_content=["json"],
    result_serializer="json",
    timezone="Asia/Shanghai",
    enable_utc=True,
    worker_pool="solo" if sys.platform == "win32" else "prefork",
    worker_concurrency=int(config_handler.get("construction_write", "MAX_CELERY_TASKS", "2")),
    worker_prefetch_multiplier=1,
    task_acks_late=True,
    task_track_started=True,
    task_time_limit=3600,
    task_soft_time_limit=3540,
    worker_max_tasks_per_child=5,
    result_expires=3600,
    broker_connection_timeout=30,
    broker_connection_retry=True,
    broker_connection_retry_on_startup=True,
    broker_connection_max_retries=10,
    broker_heartbeat=60,
    broker_transport_options={"visibility_timeout": 3600, "socket_keepalive": True},
    task_default_queue="construction_write",
    task_routes={
        "foundation.infrastructure.messaging.tasks.submit_outline_generation_task": {
            "queue": "construction_write"
        }
    },
    broker_pool_limit=None,
    result_backend_pool_limit=None,
)

# 初始化 Celery trace 系统（自动管理 trace_id 在 Celery 信号中的传递与恢复）
from foundation.infrastructure.tracing.celery_trace import init

init()