# Work with Python 3.7
import json
import logging
import re
import urllib.request

import telegram
from telegram.ext import CommandHandler, Filters, MessageHandler, Updater

import credentials
import tickerInfo

TOKEN = credentials.secrets["TELEGRAM_TOKEN"]

# Enable logging
logging.basicConfig(
    format="%(asctime)s - %(name)s - %(levelname)s - %(message)s", level=logging.INFO
)

logger = logging.getLogger(__name__)
print("Bot Online")


# Define a few command handlers. These usually take the two arguments bot and
# update. Error handlers also receive the raised TelegramError object in error.
def start(bot, update):
    """Send a message when the command /start is issued."""
    update.message.reply_text("I am started and ready to go!")


def help(bot, update):
    """Send link to docs when the command /help is issued."""
    message = "[Please see the docs for Bot information](https://misterbiggs.gitlab.io/simple-telegram-bot)"
    update.message.reply_text(text=message, parse_mode=telegram.ParseMode.MARKDOWN)


def news(bot, update):
    """Send a message when the /news command is issued."""
    message = update.message.text
    chat_id = update.message.chat_id

    try:
        # regex to find tickers in messages, looks for up to 4 word characters following a dollar sign and captures the 4 word characters
        tickers = re.findall("[$](\w{1,4})", message)
        bot.send_chat_action(chat_id=chat_id, action=telegram.ChatAction.TYPING)

        ## Checks if a ticker was passed in
        if tickers == []:
            message = "No Ticker, showing Market News:"
            news = tickerInfo.stockNews("market")
            for i in range(3):
                message = "{}\n\n[{}]({})".format(
                    message, news["title"][i], news["link"][i]
                )
            update.message.reply_text(
                text=message, parse_mode=telegram.ParseMode.MARKDOWN
            )
        else:
            tickerData = tickerInfo.tickerQuote(tickers)
            for ticker in tickers:
                ticker = ticker.upper()
                # Makes sure ticker exists
                if tickerData[ticker] == 1:
                    name = tickerData[ticker + "Name"]
                    price = tickerData[ticker + "Price"]
                    change = tickerData[ticker + "Change"]

                    message = f"The current stock price of {name} is $**{price}**"
                    if change > 0:
                        message = f"{message}, the stock is currently **up {change}%**"
                    elif change < 0:
                        message = (
                            f"{message}, the stock is currently **down {change}%**"
                        )
                    else:
                        message = (
                            f"{message}, the stock hasn't shown any movement today."
                        )

                    news = tickerInfo.stockNews(ticker)
                    for i in range(3):
                        message = (
                            f"{message}\n\n[{news['title'][i]}]({news['link'][i]})"
                        )

                    update.message.reply_text(
                        text=message, parse_mode=telegram.ParseMode.MARKDOWN
                    )
                else:
                    update.message.reply_text(ticker + " Does not exist.")
    except:
        pass


def stockInfo(bot, update):
    message = update.message.text
    chat_id = update.message.chat_id

    try:
        # regex to find tickers in messages, looks for up to 4 word characters following a dollar sign and captures the 4 word characters
        tickers = re.findall("[$](\w{1,4})", message)

        tickerData = tickerInfo.tickerQuote(tickers)
        bot.send_chat_action(chat_id=chat_id, action=telegram.ChatAction.TYPING)

        for ticker in tickers:
            ticker = ticker.upper()
            # Makes sure ticker exists
            if tickerData[ticker] == 1:
                name = tickerData[ticker + "Name"]
                price = tickerData[ticker + "Price"]
                change = tickerData[ticker + "Change"]
                message = f"The current stock price of {name} is $**{price}**"
                if change > 0:
                    message = f"{message}, the stock is currently **up {change}%**"
                elif change < 0:
                    message = f"{message}, the stock is currently **down {change}%**"
                else:
                    message = f"{message}, the stock hasn't shown any movement today."
                update.message.reply_text(
                    text=message, parse_mode=telegram.ParseMode.MARKDOWN
                )
            else:
                update.message.reply_text(ticker + " Does not exist.")
    except:
        pass


def dividend(bot, update):
    message = update.message.text
    chat_id = update.message.chat_id
    try:
        # regex to find tickers in messages, looks for up to 4 word characters following a dollar sign and captures the 4 word characters
        tickers = re.findall("[$](\w{1,4})", message)
        bot.send_chat_action(chat_id=chat_id, action=telegram.ChatAction.TYPING)

        for ticker in tickers:
            message = tickerInfo.stockDividend(ticker)
            update.message.reply_text(
                text=message, parse_mode=telegram.ParseMode.MARKDOWN
            )

    except:
        pass


def error(bot, update, error):
    """Log Errors caused by Updates."""
    logger.warning('Update "%s" caused error "%s"', update, error)


def main():
    """Start the bot."""
    # Create the EventHandler and pass it your bot's token.
    updater = Updater(TOKEN)

    # Get the dispatcher to register handlers
    dp = updater.dispatcher

    # on different commands - answer in Telegram
    dp.add_handler(CommandHandler("start", start))
    dp.add_handler(CommandHandler("help", help))
    dp.add_handler(CommandHandler("news", news))
    dp.add_handler(CommandHandler("dividend", dividend))

    # on noncommand i.e message - echo the message on Telegram
    dp.add_handler(MessageHandler(Filters.text, stockInfo))

    # log all errors
    dp.add_error_handler(error)

    # Start the Bot
    updater.start_polling()

    # Run the bot until you press Ctrl-C or the process receives SIGINT,
    # SIGTERM or SIGABRT. This should be used most of the time, since
    # start_polling() is non-blocking and will stop the bot gracefully.
    updater.idle()


if __name__ == "__main__":
    main()