#!/usr/bin/env python3
import sys
from pprint import pprint
import requests
import argparse

try:
    from colors import color
except ImportError:

    def color(text, *args, **kwargs):
        return text


def is_group_subscribed(mSubscribeFlags):
    return bool(mSubscribeFlags & 4)


def req(args, location, data=None):
    kwargs = {}
    if data is not None:
        kwargs["json"] = data
    r = requests.post(
        args.endpoint + location, auth=tuple(args.auth.split(":", 2)), **kwargs
    )
    # TODO: handle r.status_code != 200
    return r


def main_forum_list(args):
    r = req(args, "/rsGxsForums/getForumsSummaries")
    forums = r.json()["forums"]
    for item in forums:
        if is_group_subscribed(item["mSubscribeFlags"]):
            if "notsubscribed" in args.select:
                continue
            style = "bold"
        else:
            if "subscribed" in args.select:
                continue
            style = None
        print(color(item["mGroupName"], style=style, fg="green"))
        print("   " + color(item["mGroupId"], style="underline"))

def main_forum_read(args):
    r = req(args, "/rsGxsForums/getForumMsgMetaData", {"forumId": args.forum_id})
    items = r.json()["msgMetas"]
    if args.long:
        msgs = [item["mMsgId"] for item in items[: args.num_posts]]
        items_r = req(
            args,
            "/rsGxsForums/getForumContent",
            {"forumId": args.forum_id, "msgsIds": msgs},
        )
        pprint(items_r.json())
        items = items_r.json()["msgs"]
        for item in items:
            print(color(item["mMeta"]["mMsgName"], style="bold", fg="green"))
            print()
            print(color(item["mMsg"])) # TODO: html2txt
            print()
    else:
        for item in posts[: args.num_posts]:
            print(color(item["mMsgName"], style="bold", fg="green"))
            print("   " + color(item["mMsgId"], style="underline"))


def main_channel_list(args):
    r = req(args, "/rsGxsChannels/getChannelsSummaries")
    channels = r.json()["channels"]
    for item in channels:
        if is_group_subscribed(item["mSubscribeFlags"]):
            if "notsubscribed" in args.select:
                continue
            style = "bold"
        else:
            if "subscribed" in args.select:
                continue
            style = None
        print(color(item["mGroupName"], style=style, fg="green"))
        print("   " + color(item["mGroupId"], style="underline"))


def main_channel_read(args):
    r = req(args, "/rsGxsChannels/getContentSummaries", {"channelId": args.channel_id})
    posts = r.json()["summaries"]
    if args.long:
        msgs = [post["mMsgId"] for post in posts[: args.num_posts]]
        posts_r = req(
            args,
            "/rsGxsChannels/getChannelContent",
            {"channelId": args.channel_id, "contentsIds": msgs},
        )
        posts = posts_r.json()["posts"]
        for post in posts:
            print(color(post["mMeta"]["mMsgName"], style="bold", fg="green"))
            print()
            print(color(post["mMsg"]))
            print()
    else:
        for post in posts[: args.num_posts]:
            print(color(post["mMsgName"], style="bold", fg="green"))
            print("   " + color(post["mMsgId"], style="underline"))


def main_channel_show(args):
    r = req(args, "/rsGxsChannels/getChannelsInfo", {"chanIds": [args.channel_id]})
    data = r.json()
    channels = data["channelsInfo"]
    for chan in channels:
        print(color(chan["mMeta"]["mGroupName"], style="bold", fg="green"))
        print("   " + color(chan["mMeta"]["mGroupId"], style="underline"))
        print("   " + chan["mDescription"])
        print(color("Last Post:", style="bold") + " \t%s" % chan["mMeta"]["mLastPost"])


def main_channel_post_v1(args):
    chid = args.channel_id
    r = req(
        args,
        "/rsGxsChannels/createPost",
        {
            "channelId": args.channel_id,
            "title": args.post_title,
            "mBody": args.post_body,
        },
    )
    if r.status_code != 200:
        print(color("ERROR: could not create post", fg="red", style="bold"))
        print("Error %d" % r.status_code)
        sys.exit(1)
    ret = r.json()
    print(r.json())
    if ret.get("retval", True) is False:
        print(color("ERROR: could not create post", fg="red", style="bold"))
        print(ret["errorMessage"])
        pprint(ret)
        sys.exit(1)
    pprint(ret)


def main_channel_post(args):
    chid = args.channel_id
    r = req(
        args,
        "/rsGxsChannels/createPostV2",
        {
            "channelId": args.channel_id,
            "title": args.post_title,
            "mBody": args.post_body,
        },
    )
    if r.status_code == 404:
        return main_channel_post_v1(args)
    ret = r.json()
    if ret.get("retval", True) is False:
        print(color("ERROR: could not create post", fg="red", style="bold"))
        print(ret["errorMessage"])
        pprint(ret)
        sys.exit(1)
    pprint(ret)


def get_parser():
    p = argparse.ArgumentParser()
    p.add_argument("--endpoint", default="http://127.0.0.1:9092")
    p.add_argument("-u", "--auth", dest="auth")

    p_sub = p.add_subparsers()

    ch = p_sub.add_parser("channel")
    ch.add_argument("--channel-id")
    ch_sub = ch.add_subparsers()
    ch_list = ch_sub.add_parser("list")
    ch_list.add_argument(
        "--select",
        nargs="+",
        choices=["all", "subscribed", "notsubscribed"],
        default=["all"],
    )
    ch_list.set_defaults(mainfunc=main_channel_list)

    ch_show = ch_sub.add_parser("show")
    ch_show.set_defaults(mainfunc=main_channel_show)

    ch_read = ch_sub.add_parser("read")
    ch_read.add_argument("--long", action="store_true", default=False)
    ch_read.add_argument("--num-posts", type=int, default=10)
    ch_read.set_defaults(mainfunc=main_channel_read)

    ch_post = ch_sub.add_parser("post")
    ch_post.set_defaults(mainfunc=main_channel_post)
    ch_post.add_argument("--post-title")
    ch_post.add_argument("--post-body")

    forum = p_sub.add_parser("forum")
    forum.add_argument("--forum-id")
    forum_sub = forum.add_subparsers()
    forum_list = forum_sub.add_parser("list")
    forum_list.add_argument(
        "--select",
        nargs="+",
        choices=["all", "subscribed", "notsubscribed"],
        default=["all"],
    )
    forum_list.set_defaults(mainfunc=main_forum_list)

    forum_read = forum_sub.add_parser("read")
    forum_read.add_argument("--long", action="store_true", default=False)
    forum_read.add_argument("--num-posts", type=int, default=10)
    forum_read.set_defaults(mainfunc=main_forum_read)


    # TODO: channel rss -> read and convert to rss

    return p


def main():
    p = get_parser()
    args = p.parse_args()
    if getattr(args, "mainfunc", None) is None:
        print("Not a complete command")
        sys.exit(2)
    args.mainfunc(args)


if __name__ == "__main__":
    main()