#!/usr/bin/env python3

import http
import hmac
import json
import socket
from flask import Flask, request
from pprint import pprint
from hashlib import sha256
from phabricator import Phabricator

website = "https://phab.lubuntu.me"

phab = Phabricator(host=website+"/api/", token="API KEY")

app = Flask(__name__)

def isnewtask(task):
    modified = None

    for data in task:
        if modified != None:
            if data["dateCreated"] == data["dateModified"] and data["dateCreated"] == modified:
                modified = data["dateCreated"]
                newtask = True
            else:
                newtask = False
                break
        else:
            modified = data["dateCreated"]

    return newtask

def sendnotice(message):
    username = "lugito"
    server = "irc.freenode.net"
    port = 6667
    channel = "#lubuntu-devel"

    conn = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    conn.connect((server, port))

    setup = False

    usersuffix = 0
    while setup == False:
        response = conn.recv(512).decode("utf-8")
        if "No Ident response" in response:
            conn.send("NICK {}\r\n".format(username).encode("utf-8"))
            conn.send("USER {} * * :{}\r\n".format(username, username).encode("utf-8"))

        if "376" in response:
            conn.send("JOIN {}\r\n".format(channel).encode("utf-8"))

        if "433" in response:
            usersuffix = usersuffix + 1
            username = username + str(usersuffix)
            conn.send("NICK {}\r\n".format(username).encode("utf-8"))
            conn.send("USER {} * * :{}\r\n".format(username, username).encode("utf-8"))

        if "PING" in response:
            conn.send("PONG :{}\r\n".format(response.split(":")[1]).encode("utf-8"))

        if "366" in response:
            setup = True

    conn.send("NOTICE {} :{}\r\n".format(channel, message).encode("utf-8"))


@app.route("/", methods=["POST"])
def main():
    data = request.data
    hash = hmac.new(bytes(u"HMAC KEY", "utf-8"), data, sha256)
    # We MUST ensure that the request came from Phab
    if hash.hexdigest() == request.headers["X-Phabricator-Webhook-Signature"]:
        data = json.loads(data)
        print(data)
        print

        taskexists = True
        try:
            tasksearch = phab.transaction.search(objectIdentifier=data["object"]["phid"])["data"]
        except http.client.HTTPException:
            taskexists = False

        if taskexists:
            print("Task exists, checking to see if it's new.")
            newtask = isnewtask(tasksearch)
            if newtask:
                print("Yes, it's a new task.")
            else:
                print("No, it's not a new task.")

            # If it's not a new task, let's see if it's a comment, and if it's just an edit
            comment = None
            commentid = None
            edited = None
            if not newtask:
                commentid = None
                edited = False
                for task in tasksearch:
                    dataepoch = data["action"]["epoch"]
                    datemodified = task["dateModified"]
                    if datemodified >= (dataepoch - 10) and datemodified <= (dataepoch + 10) and task["comments"] != []:
                        print("It's a comment, yes.")
                        comment = True
                        commentid = task["id"]
                        if datemodified != task["dateCreated"]:
                            print("The comment was edited.")
                            edited = True
                        else:
                            print("The comment was NOT edited.")
                            edited = False
                        break
                    else:
                        comment = False

            if comment or edited or newtask:
                # We should also know who did this thing
                userlookup = tasksearch[0]["authorPHID"]
                who = dict(phab.phid.query(phids=[userlookup]))[userlookup]["fullName"]

                fulltaskname = phab.phid.query(phids=[data["object"]["phid"]])[data["object"]["phid"]]["fullName"]
                link = "\x032" + phab.phid.query(phids=[data["object"]["phid"]])[data["object"]["phid"]]["uri"]
                if commentid:
                    link = link + "#" + str(commentid) + "\x03"
                else:
                    link = link + "\x03"
                message = "\x033[\x03\x0313"+ fulltaskname +"\x03\x033]\x03 \x0315" + str(who) + "\x03 "
                if comment:
                    message = message + "commented on the task: " + link
                elif edited:
                    message = message + "edited a message on the task: " + link
                elif newtask:
                    message = message + "just created this task: " + link
                print(message)
                sendnotice(message)

        return "OK"

if __name__ == "__main__":
    app.run(host="0.0.0.0", port=5000)