#
# Copyright 2015 (c) Anna Schumaker.
#
from . import api
from . import auth
from . import chat
from . import threads
from . import users


class Channel(threads.Thread):
    def __init__(self, json):
        threads.Thread.__init__(self, json)
        self.__member  = json.get("is_member", False)

    def do_fetch_info(self):
        return info(self.id())

    def do_fetch_messages(self, ts):
        return history(self.id(), ts)

    def do_mark_messages(self, ts):
        mark(self.id(), ts)

    def is_member(self):
        return self.__member

    def post(self, text):
        chat.postMessage(self.__id, text)



def history(channel, timestamp):
    ret = api.call("channels.history", token = auth.token(), channel = channel, oldest = timestamp)
    if ret["ok"] == False:
        return None
    return ret["messages"]

def info(channel):
    ret = api.call("channels.info", token = auth.token(), channel = channel)
    if ret["ok"] == False:
        return None
    return ret["channel"]

def list():
    ret = api.call("channels.list", token = auth.token())
    if ret["ok"] == False:
        return None

    ch_list = []
    for channel in ret["channels"]:
        ch_list += [ Channel(channel) ]
    return ch_list

def mark(channel, timestamp):
    api.call("channels.mark", token = auth.token(), channel = channel, ts = timestamp)