// This #include statement was automatically added by the Particle IDE.
#include <neopixel.h>

// IMPORTANT: Set pixel COUNT, PIN and TYPE
#define PIXEL_PIN D4
#define PIXEL_COUNT 16
#define PIXEL_TYPE WS2812

Adafruit_NeoPixel strip = Adafruit_NeoPixel(PIXEL_COUNT, PIXEL_PIN, PIXEL_TYPE);

int redValue = 0; // Full brightness for an Cathode RGB LED is 0, and off 255
int greenValue = 0; // Full brightness for an Cathode RGB LED is 0, and off 255
int blueValue = 0; // Full brightness for an Cathode RGB LED is 0, and off 255

unsigned long lastFade = 0;


void setup() {
    
    strip.begin();
    strip.setBrightness(50);
    strip.show(); // Initialize all pixels to 'off'
    
    // Particle.function("fade_up", colorFadeUp);
    // Particle.function("to_red", colorFadeRed);
    // Particle.function("fade_out", colorFadeOut);
    
    Particle.function("time input", colorSeq);
    
    Particle.variable("Red", redValue);
    Particle.variable("Green", greenValue);
    Particle.variable("Blue", blueValue);
}

void loop() {

}

int colorSeq(String command) {
    unsigned long t = command.toInt();
    uint64_t wait = t * 1000;
    uint32_t c;
    
    
    c = strip.Color(redValue, greenValue, blueValue);
    colorAll(c, wait);
    
    lastFade = millis();
    while(millis() - lastFade <= t * 60 * 1000) {
        redValue += 4;
        greenValue += 4;
        blueValue += 4;
        c = strip.Color(redValue, greenValue, blueValue);
        colorAll(c, wait);
    }
    
    lastFade = millis();
    while(millis() - lastFade <= t * 60 * 1000) {
        greenValue -= 4;
        blueValue -= 4;
        c = strip.Color(redValue, greenValue, blueValue);
        colorAll(c, wait);
    }
    
    lastFade = millis();
    while(millis() - lastFade <= t * 60 * 1000) {
        redValue -= 4;
        c = strip.Color(redValue, greenValue, blueValue);
        colorAll(c, wait);
    }
    colorAll(0, wait);
    return 1;
}

int colorFadeUp(String command) {
    int t = command.toInt();
    uint64_t wait = t * 1000;
    uint32_t c;
    
    
    c = strip.Color(redValue, greenValue, blueValue);
    colorAll(c, wait);
    
    unsigned long now = millis();
    while(now - lastFade <= t * 60 * 1000) {
        redValue += 4;
        greenValue += 4;
        blueValue += 4;
        c = strip.Color(redValue, greenValue, blueValue);
        colorAll(c, wait);
        now = millis();
    }
}

int colorFadeRed(String command) {
    int t = command.toInt();
    uint64_t wait = t * 1000;
    uint32_t c;
    
    redValue = 255;
    greenValue = 255;
    blueValue = 255;
    
    unsigned long lastFade = 0;
    
    c = strip.Color(redValue, greenValue, blueValue);
    colorAll(c, wait);
    unsigned long now = millis();
    
    while(now - lastFade <= t * 60 * 1000) {
        greenValue -= 4;
        blueValue -= 4;
        c = strip.Color(redValue, greenValue, blueValue);
        colorAll(c, wait);
        now = millis();
    }
    return 1;
}

int colorFadeOut(String command) {
    int t = command.toInt();
    uint64_t wait = t * 1000;
    uint32_t c;
    
    redValue = 255;
    greenValue = 0;
    blueValue = 0;
    
    unsigned long lastFade = 0;
    
    c = strip.Color(redValue, greenValue, blueValue);
    colorAll(c, wait);
    unsigned long now = millis();
    
    while(now - lastFade <= t * 60 * 1000) {
        redValue -= 4;
        c = strip.Color(redValue, greenValue, blueValue);
        colorAll(c, wait);
        now = millis();
    }
    colorAll(0, wait);
    return 1;
}

// Set all pixels in the strip to a solid color, then wait (ms)
void colorAll(uint32_t c, uint64_t wait) {
    uint16_t i;

    for(i=0; i<strip.numPixels(); i++) {
        strip.setPixelColor(i, c);
    }
    strip.show();
    delay(wait);
}

// Button press interrupt service routine
void buttonPressInterrupt(){
    buttonPressFlag = true;
}