#!/usr/bin/env python

import re
import sys
import os

from rich import print
from rich.panel import Panel
from rich.console import Console

from tweepy import API
from tweepy import Cursor
from tweepy import OAuthHandler
from tweepy import Stream
from tweepy.streaming import StreamListener

""" Stream Twitter threads using Tweepy in Console.

    Installation: It requires two python packages, install them using

        `pip install tweepy rich --user`

    Usage:

        python tw_thread.py <TWEET_URL>

    By default it tries to read tokens from Environment, you can supply them in
    script by assigning values to CONSUMER_KEY, CONSUMER_SECRET, ACCESS_TOKEN,
    ACCESS_TOKEN_SECRET.

    Or set them in environment variable with the following names

        CONSUMER_KEY => TW_KEY
        CONSUMER_SECRET => TW_SKEY
        ACCESS_TOKEN => TW_TOK
        ACCESS_TOKEN_SECRET => TW_STOK

    Access Tokens can be generated from here,
    https://developer.twitter.com/en/docs/basics/authentication/guides/access-tokens.html
"""

CONSUMER_KEY = os.environ.get("TW_KEY")
CONSUMER_SECRET = os.environ.get("TW_SKEY")
ACCESS_TOKEN = os.environ.get("TW_TOK")
ACCESS_TOKEN_SECRET = os.environ.get("TW_STOK")

auth = OAuthHandler(CONSUMER_KEY, CONSUMER_SECRET)
auth.set_access_token(ACCESS_TOKEN, ACCESS_TOKEN_SECRET)
api = API(auth, wait_on_rate_limit=True, wait_on_rate_limit_notify=True)

console = Console()

history = []
heading_template = """[bold bright_white]{}[/] ([grey50]@{}[/]) · [yellow]{}[/]"""
tweet_template = (
    """{}\n\n[light_sky_blue3]https://twitter.com/{}/status/{}[/light_sky_blue3]"""
)


def print_heading(tweet):
    timestamp = tweet.created_at.strftime("%A, %d. %B %Y %I:%M%p")
    username = tweet.author.screen_name
    name = tweet.author.name
    console.rule(heading_template.format(name, username, timestamp), align="left")


def pretty_tweet(tweet):
    if not tweet.id in history:
        history.append(tweet)
        username = tweet.author.screen_name
        tweet_id = tweet.id_str
        content = tweet.full_text

        hashtags = re.findall(r"(#\w*[0-9a-zA-Z]+\w*[0-9a-zA-Z])", content)

        for tag in hashtags:
            highlight = "[yellow]{}[/yellow]".format(tag)
            content = content.replace(tag, highlight)

        console.print(Panel(tweet_template.format(content, username, tweet_id)))


class Listener(StreamListener):
    def __init__(self, conversation_id):
        self.conversation_id = conversation_id
        super(Listener, self).__init__()

    def on_status(self, status):
        if status.in_reply_to_status_id_str == self.conversation_id:
            pretty_tweet(status)

    def on_error(self, status_code):
        print(status_code)
        return False


conversation_id = sys.argv[1].split("/").pop().split("?")[0]
source = api.get_status(id=conversation_id, tweet_mode="extended")

if source.in_reply_to_status_id_str:
    print("Getting first tweet")
    conversation_id = source.in_reply_to_status_id_str
    source = api.get_status(id=conversation_id, tweet_mode="extended")


source_name = source.author.screen_name
source_id = source.author.id_str

print_heading(source)

replies = Cursor(
    api.search,
    q="from:{} conversation_id:{}".format(source_name, conversation_id),
    tweet_mode="extended",
    timeout=999999,
).items(1000)

conversations = []

for reply in replies:
    conversations.append(reply)

conversations.append(source)

for tweet in reversed(conversations):
    pretty_tweet(tweet)

listener = Listener(conversation_id=conversation_id)

stream = Stream(auth=api.auth, listener=listener, tweet_mode="extended")

try:
    stream.filter(follow=[source_id])
except KeyboardInterrupt:
    print("Bye.")
finally:
    stream.disconnect()