# Simple string program. Writes and updates strings.
# Demo program for the I2C 16x2 Display from Ryanteck.uk
# Created by Matthew Timmons-Brown for The Raspberry Pi Guy YouTube channel

# Import necessary librarie for commuunication and display use
import lcddriver
import time
from subprocess import Popen, PIPE, STDOUT


# Load the driver and set it to "display"
# If you use something from the driver library use the "display." prefix first
display = lcddriver.lcd()
print ()
cmd = ['audtool', '--current-song']
p= Popen(cmd, shell=True, stdin=PIPE, stdout=PIPE, stderr=STDOUT, close_fds=True)
for line in p.stdout:
	line = line.rstrip()
	print line

# Main body of code
try:
    while True:
        # Remember that your sentences can only be 16 characters long!
        print("Writing to display")
        display.lcd_display_string("Hey jerk, wanna", 1)  # Write line of text to first line of display
        display.lcd_display_string("kill all humans", 2)  # Write line of text to second line of display
        time.sleep(4)                                     # Give time for the message to be read
        display.lcd_clear()                               # Clear the display of any data
        display.lcd_display_string("Insert Liquor", 1)    # Refresh the first line of display with a different message
        time.sleep(4)                                     # Give time for the message to be read
        display.lcd_clear()                               # Clear the display of any dat
	display.lcd_display_string(str(line), 2)
	time.sleep(30)

except KeyboardInterrupt: # If there is a KeyboardInterrupt (when you press ctrl+c), exit the program and cleanup
    print("Cleaning up!")
    display.lcd_clear()