import urequests
import time
import board
import neopixel
import adafruit_bitmap_font as font
import adafruit_framebuf as framebuf

# Set up NeoPixel matrix
np = neopixel.NeoPixel(board.GP0, 512, brightness=0.5)

# Set up bitmap font
font = font.BitmapFont("/fonts/arial_12.bdf")
buf = bytearray(16 * 32 // 8)
fb = framebuf.FrameBuffer(buf, 16, 32, framebuf.MONO_HLSB)

# API endpoint to get current Bitcoin price in USD
bitcoin_api_url = 'https://api.coindesk.com/v1/bpi/currentprice.json'

def get_bitcoin_price():
    response = urequests.get(bitcoin_api_url)
    data = response.json()
    price = data['bpi']['USD']['rate_float']
    return price

def display_price_on_matrix(price):
    # Convert price to a string
    price_str = '${:,.2f}'.format(price)

    # Pad the price string with leading zeros if necessary
    num_zeros = 8 - len(price_str)
    price_str = '0' * num_zeros + price_str

    # Set the starting position for displaying the price
    x = 0

    # Loop through each character in the price string
    for char in price_str:
        # Get the LED matrix for the character from the bitmap font
        matrix, width, height, dx, dy = font.get_ch(char)

        # Clear the framebuffer and draw the character in it
        fb.fill(0)
        fb.blit(matrix, x - dx, 0)

        # Loop through each LED in the matrix and turn on the corresponding LED on the NeoPixel matrix
        for i in range(16):
            for j in range(32):
                if fb.pixel(i, j):
                    np[j * 16 + i] = (255, 255, 255)
                else:
                    np[j * 16 + i] = (0, 0, 0)

        # Move the display position to the right by the width of the character plus one
        x += width + 1

    # Update the NeoPixel matrix
    np.show()

while True:
    price = get_bitcoin_price()
    display_price_on_matrix(price)
    time.sleep(60)  # Update once per minute