import json

import requests

from util import dateutil


class YarnClient(object):
    def __init__(self, cluster_ip: str):
        self.cluster_ip = cluster_ip

    def get_apps(self, queue="", finished_time_begin=0, finished_time_end=0, started_time_begin=0, started_time_end=0,
                 limit=10) -> list[dict]:
        query_str = f"limit=&{limit}"
        if queue != "":
            query_str = f"{query_str}&queue={queue}"
        if finished_time_end > 0:
            query_str = f"{query_str}&finishedTimeBegin={finished_time_begin}"
        if finished_time_end > 0:
            query_str = f"{query_str}&finishedTimeEnd={finished_time_end}"
        if started_time_begin > 0:
            query_str = f"{query_str}&startedTimeBegin={started_time_begin}"
        if started_time_end > 0:
            query_str = f"{query_str}&startedTimeEnd={started_time_end}"

        url = f"http://{self.cluster_ip}:8088/ws/v1/cluster/apps?{query_str}"
        response = requests.get(url)
        res = json.loads(response.text)
        result = []
        for app in res['apps']['app']:
            item = {
                "id": app['id'],
                "name": app['name'],
                "finalStatus": app['finalStatus'],
                "finishedTime": dateutil.ts_cover_str(app['finishedTime']),
                "startedTime": dateutil.ts_cover_str(app['startedTime']),
                "launchTime": dateutil.ts_cover_str(app['launchTime']),
                "queue": app['queue'],
                "state": app['state'],
                "elapsedTime": app['elapsedTime'],
            }
            result.append(item)

        return result