import time
import random
import logging

from grpcServer import postProcessor
from utils.ThreadSafeOrderedDict import ThreadSafeOrderedDict
from utils.const import ANOTH_INTERVAL_MIN, ANOTH_INTERVAL_MAX
from utils.tbProcessor import easyExceptionHandler
from db import dbhelper

# logging
anothlog = logging.getLogger("anoth")
anothlog.setLevel(level=logging.INFO)

# task queue
task = ThreadSafeOrderedDict()

def task_round():
    t = task.popitem(last=False)
    if not t: # 沒任務
        anothlog.info("No task in queue")
        return
    
    aid = t[1]["aid"]
    type = t[0].split("-")[0]
    anothlog.info("Task %s(target_aid=%d)"%(type, aid))
    
    if type == "upload": # upload
        msg, err = postProcessor.upload(aid)
    elif type == "delete":
        code = t[1]["code"]
        msg, err = postProcessor.remove(code)
    else:
        msg, err = "Invalid task type %s"%type, 1
        
    if err:
        anothlog.error("Task failed: %s"%msg)
    elif type == "upload":
        dberr = dbhelper.solo_article_set_igid(id=aid, igid=msg)
        if dberr:
            anothlog.error("Task %s(target_aid=%d): Set igid failed"%(type, aid))
        
    anothlog.info("Task Done")
    return


def run():
    anothlog.info("Upload/Delete Processor Started")
    while True:
        try:
            task_round()
        except Exception as e:
            easyExceptionHandler(e)
        
        sleep = random.randint(ANOTH_INTERVAL_MIN, ANOTH_INTERVAL_MAX)
        anothlog.info("Next Round After %ds"%sleep)
        time.sleep(sleep)