import time

from activators.Activator import Activator
from neopixel import *
import argparse

# LED strip configuration:
LED_COUNT = 64  # Number of LED pixels.
LED_PIN = 18  # GPIO pin connected to the pixels (18 uses PWM!).
# LED_PIN        = 10      # GPIO pin connected to the pixels (10 uses SPI /dev/spidev0.0).
LED_FREQ_HZ = 800000  # LED signal frequency in hertz (usually 800khz)
LED_DMA = 10  # DMA channel to use for generating signal (try 10)p
LED_BRIGHTNESS = 255  # Set to 0 for darkest and 255 for brightest
LED_INVERT = False  # True to invert the signal (when using NPN transistor level shift)
LED_CHANNEL = 0  # set to '1' for GPIOs 13, 19, 41, 45 or 53


class ws281x(Activator):
    def __init__(self):
        super().__init__()
        self.strip = Adafruit_NeoPixel(
            LED_COUNT,
            LED_PIN,
            LED_FREQ_HZ,
            LED_DMA,
            LED_INVERT,
            LED_BRIGHTNESS,
            LED_CHANNEL,
        )
        self.strip.begin()

    def colorWipe(self, color, wait_ms=50):
        """Wipe color across display a pixel at a time."""
        for i in range(self.strip.numPixels()):
            self.strip.setPixelColor(i, color)
            self.strip.show()
            time.sleep(wait_ms / 1000.0)

    def theaterChase(self, color, wait_ms=50, iterations=10):
        """Movie theater light style chaser animation."""
        for j in range(iterations):
            for q in range(3):
                for i in range(0, self.strip.numPixels(), 3):
                    self.strip.setPixelColor(i + q, color)
                self.strip.show()
                time.sleep(wait_ms / 1000.0)
                for i in range(0, self.strip.numPixels(), 3):
                    self.strip.setPixelColor(i + q, 0)

    def wheel(self, pos):
        """Generate rainbow colors across 0-255 positions."""
        if pos < 85:
            return Color(pos * 3, 255 - pos * 3, 0)
        elif pos < 170:
            pos -= 85
            return Color(255 - pos * 3, 0, pos * 3)
        else:
            pos -= 170
            return Color(0, pos * 3, 255 - pos * 3)

    def rainbow(self, wait_ms=20, iterations=1):
        """Draw rainbow that fades across all pixels at once."""
        for j in range(256 * iterations):
            for i in range(self.strip.numPixels()):
                self.strip.setPixelColor(i, self.wheel((i + j) & 255))
            self.strip.show()
            time.sleep(wait_ms / 1000.0)

    def rainbowCycle(self, wait_ms=20, iterations=5):
        """Draw rainbow that uniformly distributes itself across all pixels."""
        for j in range(256 * iterations):
            for i in range(self.strip.numPixels()):
                self.strip.setPixelColor(
                    i, self.wheel((int(i * 256 / self.strip.numPixels()) + j) & 255)
                )
            self.strip.show()
            time.sleep(wait_ms / 1000.0)

    def theaterChaseRainbow(self, wait_ms=50):
        """Rainbow movie theater light style chaser animation."""
        for j in range(256):
            for q in range(3):
                for i in range(0, self.strip.numPixels(), 3):
                    self.strip.setPixelColor(i + q, self.wheel((i + j) % 255))
                self.strip.show()
                time.sleep(wait_ms / 1000.0)
                for i in range(0, self.strip.numPixels(), 3):
                    self.strip.setPixelColor(i + q, 0)

    def on(self):
        super().on()
        self.colorWipe(Color(0, 0, 255), 10)

    def off(self):
        super().off()
        self.colorWipe(Color(0, 0, 0), 10)


if __name__ == "__main__":
    # Process arguments
    parser = argparse.ArgumentParser()
    parser.add_argument(
        "-c", "--clear", action="store_true", help="clear the display on exit"
    )
    args = parser.parse_args()

    led = ws281x()

    print("Press Ctrl-C to quit.")
    if not args.clear:
        print('Use "-c" argument to clear LEDs on exit')

    try:

        print("Color wipe animations.")
        led.on()

    except KeyboardInterrupt:
        if args.clear:
            led.off()
