#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <Wire.h>

#include "FastLED.h"
#include "Sliders.h"
#include "Leds.h"

const int SCREEN_WIDTH = 128;
const int SCREEN_HEIGHT = 64;

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

void setup() {
  Serial.begin(9600);
  if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("Oled Fehler"));
    while (true);
  }

  FastLED.addLeds<WS2812B, PIN_LEDS, GRB>(rgb_led, NUM_LEDS);
  FastLED.setBrightness(BRIGHTNESS_LEDS);

  Serial.println("Setup done.");
}

void loop() {
  display.clearDisplay();
  display.setTextSize(1);
  display.setTextColor(WHITE);
  display.setCursor(0, 10);
  display.display();

  // 1) Analog value of slide pot is read
  // sendSliderValues();
  // printSliderValues();
  // Serial.print("Slide Pot value: ");
  // Serial.println(value_slide_pot_a);

  // int sliderval_a = calcSlidersForLEDS(slider[0].read(), 50, 0);
  // int sliderval_b = calcSlidersForLEDS(slider[1].read(), 50, 20);
  // int sliderval_c = calcSlidersForLEDS(slider[2].read(), 50, 40);
  // int sliderval_d = calcSlidersForLEDS(slider[3].read(), 50, 60);

  int sliderval_a = slider[0].read();
  int sliderval_b = slider[1].read();
  int sliderval_c = slider[2].read();
  int sliderval_d = slider[3].read();

  Serial.println(String(sliderval_a) + "|" + String(sliderval_d));

  // Slider 1
  for (int i = 0; i < sliderval_a; ++i) {
    rgb_led[i] = LED_COLOR_GREEN;
  }

  for (int i = sliderval_a; i < NUM_LEDS; ++i) {
    rgb_led[i] = CRGB::Black;
  }

  // Slider 2
  for (int i = 20; i < sliderval_b; ++i) {
    rgb_led[i] = LED_COLOR_GREEN;
  }

  for (int i = sliderval_b; i < NUM_LEDS; ++i) {
    rgb_led[i] = CRGB::Black;
  }

  // Slider 3
  for (int i = 40; i < sliderval_c; ++i) {
    rgb_led[i] = LED_COLOR_GREEN;
  }

  for (int i = sliderval_c; i < NUM_LEDS; ++i) {
    rgb_led[i] = CRGB::Black;
  }

  // Slider 4
  for (int i = 60; i < sliderval_d; ++i) {
    rgb_led[i] = LED_COLOR_GREEN;
  }

  for (int i = sliderval_d; i < NUM_LEDS; ++i) {
    rgb_led[i] = CRGB::Black;
  }

  FastLED.show();
  delay(20);
}