# Display a runtext with double-buffering.
from rgbmatrix import graphics, RGBMatrix, RGBMatrixOptions
import time
import sys
import requests

options = RGBMatrixOptions()
options.rows = 16
options.cols = 32
options.chain_length = 1
options.parallel = 1
options.hardware_mapping = "regular"


def symbolData(symbol: str):
    """
    Takes a list of symbol and returns a dictionary of strings with information about the symbol.
    """
    IEX_TOKEN = "TOKEN HERE"
    IEXurl = "https://cloud.iexapis.com/stable/stock/{symbol}/quote?token={IEX}".format(
        symbol=symbol, IEX=IEX_TOKEN
    )

    response = requests.get(IEXurl)
    if response.status_code is 200:
        IEXData = response.json()
        message = "The current stock price of {name} is $**{price}**".format(
            name=IEXData["companyName"], price=IEXData["latestPrice"]
        )

        # Determine wording of change text
        change = round(IEXData["changePercent"] * 100, 2)
        if change > 0:
            message += ", the stock is currently **up {change}%**".format(change=change)
        elif change < 0:
            message += ", the stock is currently **down {change}%**".format(
                change=change
            )
        else:
            message += ", the stock hasn't shown any movement today."
    else:
        message = "The symbol: {symbol} was not found.".format(symbol=symbol)

    return message


def run():
    matrix = RGBMatrix(options=options)
    offscreen_canvas = matrix.CreateFrameCanvas()
    font = graphics.Font()
    font.LoadFont("../../../fonts/7x13.bdf")
    textColor = graphics.Color(255, 255, 0)
    pos = offscreen_canvas.width
    my_text = "loading"

    while True:
        offscreen_canvas.Clear()
        len = graphics.DrawText(offscreen_canvas, font, pos, 10, textColor, my_text)
        pos -= 1
        if pos + len < 0:
            my_text = symbolData("tsla")
            pos = offscreen_canvas.width

        time.sleep(0.05)
        offscreen_canvas = matrix.SwapOnVSync(offscreen_canvas)


try:
    print("Press CTRL-C to stop.")
    while True:
        run()
except KeyboardInterrupt:
    sys.exit(0)