import asyncio
import traceback
import time
import json
import datetime
from aliyun.log import LogClient, PutLogsRequest, LogItem


class LogService:
    def __init__(self, endpoint, access_key_id, access_key_secret, project, logstore):
        self.client = LogClient(endpoint, access_key_id, access_key_secret)
        self.project = project
        self.logstore = logstore
        self.queue = asyncio.Queue()
        self.running = False

    async def start(self):
        self.running = True
        asyncio.create_task(self._worker())

    async def stop(self):
        self.running = False

    async def log(self, contents: dict):
        """外部调用日志接口"""
        await self.queue.put(contents)

    async def _worker(self):
        while self.running:
            contents = await self.queue.get()
            try:
                await asyncio.to_thread(self._put_log, contents)
            except Exception as e:
                print(f"[Log Error] {e}")
                print(traceback.format_exc())

    def _put_log(self, contents: dict):
        timestamp = int(time.time())
        contents["datetime"] = datetime.datetime.now().__str__()
        safe_items = [
            (str(k), json.dumps(v) if isinstance(v, (dict, list)) else str(v))
            for k, v in contents.items()
        ]
        log_item = LogItem(timestamp=timestamp, contents=safe_items)
        req = PutLogsRequest(
            self.project, self.logstore, topic="", source="", logitems=[log_item]
        )
        self.client.put_logs(req)