#include "FastLED.h"
#include <SPI.h>
#include <WiFiNINA.h>

#define NUM_LEDS 150 
//50
#define DATA_PIN 9
int NUMBER_OF_ANIMATIONS = 6;
int NUMBER_OF_LEDS = 150;
char ssid[] = "Pannkakshuset";
char pass[] = "lavalampa";
boolean doing_animation = true;

int current_animation = 0;
int loops_since_http = 0;

int animation_step_time = 0;
int animation_i = 0;
int animation_var_1 = 0;
uint16_t animation_table_1[10][8] = {};

long last_animation_millis = millis();
long latest_animation_change = millis();

//typedef enum {STATE_A = 0, STATE_B = 1} State_type;
extern void animation_rainbow(); // forward declaration
extern void animation_running(); // forward declaration
extern void animation_chasing();
extern void animation_off();
extern void animation_random1();
extern void animation_rgb_light();

void (*animation_table[])() = {animation_off, animation_rainbow, animation_running, animation_chasing, animation_random1, animation_rgb_light};

extern void setup_rainbow(); // forward declaration
extern void setup_random1();
extern void normal_setup();
extern void setup_chosen(int, int, CRGB, boolean, int, int);

void (*setup_table[])() = {animation_off, setup_rainbow, normal_setup, normal_setup, setup_random1, normal_setup};

CRGB leds[NUM_LEDS];

int status = WL_IDLE_STATUS;

WiFiServer server(80);

void setup() {
  setup_random1();
  // put your setup code here, to run once:
  //Serial.begin(9600);
  Serial.begin(9600);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for native USB port only
  }

  FastLED.addLeds<WS2812, DATA_PIN, GRB>(leds, NUM_LEDS).setCorrection( TypicalLEDStrip ); //TM1804 BRG
  FastLED.setBrightness(255);
  FastLED.clear();
  FastLED.show();
  delay(1000);

  for (int i = 15; i >= 10; i--) { //Remove this when small spce left
    uint8_t color = i*(NUM_LEDS/10 - 1) + NUM_LEDS/10;
    for (int currentLed = 5; currentLed >= 0; currentLed--) {
      leds[currentLed + i*5] = CRGB(color, 255-color, 0);
      leds[5-currentLed + NUM_LEDS/2-5 + ((NUM_LEDS/10 - i)*5)] = CRGB(color, 255-color, 0);
      FastLED.show();
      delay(5*i/3 + random(0, 25*i + 1) + 1);
    }
  }  
  
  //pinMode(DATA_PIN, OUTPUT);
  boolean first_check = true;
  while (status != WL_CONNECTED) {
    Serial.print("Attempting to connect to SSID: ");
    Serial.println(ssid);
    // Connect to WPA/WPA2 network. Change this line if using open or WEP network:
    status = WiFi.begin(ssid, pass);

    // wait 10 seconds for connection:
    if (first_check) {
      delay(1000);
      first_check = false;
    } else {
      delay(10000);
    }
  }

  for (int i = 10; i >= 5; i--) { //Remove this when small spce left
    uint8_t color = i*(NUM_LEDS/10 - 1) + NUM_LEDS/10;
    for (int currentLed = 5; currentLed >= 0; currentLed--) {
      leds[currentLed + i*5] = CRGB(color, 255-color, 0);
      leds[5-currentLed + NUM_LEDS/2-5 + ((NUM_LEDS/10 - i)*5)] = CRGB(color, 255-color, 0);
      FastLED.show();
      delay(5*i/3 + random(0, 25*i + 1) + 1);
    }
  }  
  
  server.begin();

  delay(1000);
  Serial.println("Ready");

  for (int i = 5; i >= 0; i--) { //insert this when small space -> for (int i = (NUM_LEDS / 5) / 2; i >= 0; i--) {
    uint8_t color = i*(NUM_LEDS/10 - 1) + NUM_LEDS/10;
    for (int currentLed = 5; currentLed >= 0; currentLed--) {
      leds[currentLed + i*5] = CRGB(color, 255-color, 0);
      leds[5-currentLed + NUM_LEDS/2-5 + ((NUM_LEDS/10 - i)*5)] = CRGB(color, 255-color, 0);
      FastLED.show();
      delay(5*i/3 + random(0, 25*i + 1) + 1);
    }
  }
  delay(1000);
  current_animation = 0;
  setup_table[current_animation]();
  Serial.println("Started");
}

void loop() {
  loops_since_http += 1;
  long current_millis = millis();
  if (current_millis - last_animation_millis >= animation_step_time && loops_since_http < 100) {
    if (doing_animation) {
      animation_table[current_animation]();
    } else {
      if (animation_var_1 == 1) {
        animation_fade_help();
      } else {
        delay(5);
      }
    }
    last_animation_millis = current_millis;
  } else {
    loops_since_http = 0;
    //Serial.println("Waiting for animation");
    process_HTTP();
    delay(1);
  }
  // put your main code here, to run repeatedly:
  //Serial.println("Hello");
  //delay(1000);
  //  leds[3] = CRGB::Blue;
  //  leds[0] = CRGB::Red;
  //  leds[1] = CRGB::Green;
  //  leds[49] = CRGB::White;
  //  FastLED.clear();
  //  FastLED.show();
  //  uint8_t delta = 10;
  //  for (uint8_t i = 0; i < 360; i++) {
  //    //leds[i] = CRGB(255-i*4, 255-i*4, 255-i*4);
  //    fill_rainbow(leds, NUM_LEDS, i, delta);
  //    FastLED.show();
  //    delay(10);
  //  }

}

void process_HTTP() {
  WiFiClient client = server.available();
  if (client && millis() - latest_animation_change > 1000) {
    int anim = 0;
    Serial.println("new client");
    // an http request ends with a blank line
    boolean foundSlash = false;
    boolean foundHashtag = false;
    int leds1 = 0;
    int leds2 = 0;
    uint8_t newR = 0;
    uint8_t newG = 0;
    uint8_t newB = 0;
    int doFade = 0; //Between 0 and 1
    int cycles = 20;
    int cycleLength = 100;
    int currentLoop = 0;
    String fullArguments = "";
    while (client.connected()) {
      if (client.available()) {
        char c = client.read();
        //Serial.write(c);
        if (foundHashtag) { //http://192.168.112.41/z0:49:0:255:0:0:20:1000;
          if (c == ';') {
            client.println("HTTP/1.1 200 OK");
            client.println("Content-Type: text/plain");
            client.println("Connection: close");  // the connection will be closed after completion of the response
            client.println();
            client.println("OK");
            break;
          } else if (c == ':') {
            if (currentLoop == 0) {
              leds1 = max(fullArguments.toInt(), 0);
            } else if (currentLoop == 1) {
              leds2 = min(fullArguments.toInt(), NUM_LEDS - 1);
            } else if (currentLoop == 2) {
              newR = min(max(fullArguments.toInt(), 0), 255);
            } else if (currentLoop == 3) {
              newG = min(max(fullArguments.toInt(), 0), 255);
            } else if (currentLoop == 4) {
              newB = min(max(fullArguments.toInt(), 0), 255);
            } else if (currentLoop == 5) {
              doFade = fullArguments.toInt() % 2;
            } else if (currentLoop == 6) {
              cycles = fullArguments.toInt();
            } else if (currentLoop == 7) {
              cycleLength = min(fullArguments.toInt(), 40);
            }
            fullArguments = "";
            currentLoop++;
          } else {
            fullArguments = fullArguments + c;
          }
        } else if (foundSlash) {
          if (c == 'z') {
            foundHashtag = true;
            foundSlash = false;
            continue;
          } else if (c == '(') {
            anim = current_animation - 1;
            if (anim < 0) {
              anim = NUMBER_OF_ANIMATIONS - 1;
            }
          } else if (c == ')') {
            anim = current_animation + 1;
          } else {
            anim = c - 'A';
          }
          if (anim < 0) {
            anim = -anim;
          }
          anim %= NUMBER_OF_ANIMATIONS;
          client.println("HTTP/1.1 200 OK");
          client.println("Content-Type: text/plain");
          client.println("Connection: close");  // the connection will be closed after completion of the response
          client.println();
          client.println("OK");
          break;
        }

        if (c == '/') {
          foundSlash = true;
        }
      }
    }
    // give the web browser time to receive the data
    delay(300);

    // close the connection:
    client.stop();
    //Serial.println("client disconnected");
    if (foundSlash) {
      doing_animation = true;
      setup_table[anim]();
      current_animation = anim;
      latest_animation_change = millis();
    } else {
      doing_animation = false;
//      Serial.println(leds1);
//      Serial.println(leds2);
//      Serial.println(newR);
//      Serial.println(newG);
//      Serial.println(newB);
//      Serial.println(doFade);
      setup_chosen(leds1, leds2, CRGB(newR, newG, newB), (boolean) doFade, cycles, cycleLength);
    }
  }
}

void clear_strip() {
  FastLED.clear();
  FastLED.show();
}

void animation_rainbow() {
  fill_rainbow(leds, NUM_LEDS, animation_i, animation_var_1);
  FastLED.show();
  animation_i++;
  animation_i %= 256;
  //Serial.println(animation_i);
  //Serial.println("Animation 1 step");
}

void animation_running() {
  //Serial.println("Animation 2 step");
  leds[animation_i] = CRGB(100, 255, 200);
  FastLED.show();
  animation_i++;
  if (animation_i >= NUMBER_OF_LEDS) {
    animation_i = 0;
    clear_strip();
  }
}

void animation_chasing() {
  //Serial.println("Animation 2 step");
  clear_strip();
  leds[animation_i*3] = CRGB(100, 255, 200);
  leds[(animation_i*3 + 10*3) % (NUMBER_OF_LEDS)] = CRGB(100, 255, 200);
  leds[(animation_i*3 + 20*3) % (NUMBER_OF_LEDS)] = CRGB(100, 255, 200);
  leds[((NUMBER_OF_LEDS) - animation_i*3) - 1*3] = CRGB(0, 255, 255);

  leds[animation_i*3+1] = CRGB(100, 255, 200);
  leds[(animation_i*3+1 + 10*3) % (NUMBER_OF_LEDS)] = CRGB(100, 255, 200);
  leds[(animation_i*3+1 + 20*3) % (NUMBER_OF_LEDS)] = CRGB(100, 255, 200);
  leds[((NUMBER_OF_LEDS) - animation_i*3+1) - 1*3] = CRGB(0, 255, 255);

  leds[animation_i*3+2] = CRGB(100, 255, 200);
  leds[(animation_i*3+2 + 10*3) % (NUMBER_OF_LEDS)] = CRGB(100, 255, 200);
  leds[(animation_i*3+2 + 20*3) % (NUMBER_OF_LEDS)] = CRGB(100, 255, 200);
  leds[((NUMBER_OF_LEDS) - animation_i*3+2) - 1*3] = CRGB(0, 255, 255);
  //  leds[(50 - animation_i - 10)] = CRGB(0, 255, 255);
  //  leds[(50 - animation_i)] = CRGB(0, 255, 255);
  FastLED.show();
  animation_i++;
  animation_i %= NUMBER_OF_LEDS/3;
}

void animation_off() {
  clear_strip();
  animation_step_time = 10000;
}

void animation_random1() {
  int difference = NUM_LEDS / animation_var_1;
  
  for (int i = 0; i < animation_var_1; i++) {
    int howManyCycles = animation_table_1[i][7];
    int currentStep = animation_table_1[i][6];
    uint8_t startRed = animation_table_1[i][0];
    uint8_t startGreen = animation_table_1[i][1];
    uint8_t startBlue = animation_table_1[i][2];
    uint8_t goalRed = animation_table_1[i][3];
    uint8_t goalGreen = animation_table_1[i][4];
    uint8_t goalBlue = animation_table_1[i][5];
    uint8_t r = (goalRed - startRed) * currentStep / howManyCycles + startRed;
    uint8_t g = (goalGreen - startGreen) * currentStep / howManyCycles + startGreen;
    uint8_t b = (goalBlue - startBlue) * currentStep / howManyCycles + startBlue;

//    for (int led = 0; led < 10; led++) {
//      leds[led + i * 10] = CRGB(r, b, g);
//    }
    leds[i * difference] = CRGB(r, b, g);

    animation_table_1[i][6] += 1;

    if (currentStep >= howManyCycles) {
      //      uint8_t newR = (uint8_t) random(0, 255);
      //      uint8_t newG = (uint8_t) random(0, 255);
      //      uint8_t newB = (uint8_t) random(0, 255);

      uint8_t newH = (uint8_t) random(0, 255);
      uint8_t newS = (uint8_t) random(200, 255);
      CRGB newColor = CRGB(0, 0, 0);
      newColor.setHSV(newH, newS, 255);

      animation_table_1[i][3] = newColor.r;
      animation_table_1[i][4] = newColor.g;
      animation_table_1[i][5] = newColor.b;

      uint8_t steps = (uint8_t) random(50, 255);
      animation_table_1[i][0] = r;
      animation_table_1[i][1] = g;
      animation_table_1[i][2] = b;
      animation_table_1[i][7] = steps;
      animation_table_1[i][6] = 0;

    }
  }
  for (int i = 0; i < animation_var_1; i++) {
    uint8_t startRed = leds[i * difference].r;
    uint8_t startGreen = leds[i * difference].g;
    uint8_t startBlue = leds[i * difference].b;
    uint8_t goalRed = leds[((i + 1) * difference) % NUM_LEDS].r;
    uint8_t goalGreen = leds[((i + 1) * difference) % NUM_LEDS].g;
    uint8_t goalBlue = leds[((i + 1) * difference) % NUM_LEDS].b;
    for (int currentStep = 1; currentStep < difference; currentStep++) {
      uint8_t r = (goalRed - startRed) * currentStep / difference + startRed;
      uint8_t g = (goalGreen - startGreen) * currentStep / difference + startGreen;
      uint8_t b = (goalBlue - startBlue) * currentStep / difference + startBlue;
      leds[currentStep + i*difference] = CRGB(r, g, b);
    }
  }
  FastLED.show();
}

void animation_rgb_light() {
  FastLED.clear();
  for (int i = 0; i < NUM_LEDS/3; i++) {
    leds[i] = CRGB(255, 0, 0);
    leds[(i + NUM_LEDS/3) % NUM_LEDS] = CRGB(0, 255, 0);
    leds[(i + (NUM_LEDS/3)*2) % NUM_LEDS] = CRGB(0, 0, 255);
  }
  FastLED.show();
  animation_i++;
  animation_i %= NUM_LEDS/3;
}

void animation_fade_help() {
  int leds1 = animation_table_1[0][0];
  int leds2 = animation_table_1[0][1];
  int finnishR = animation_table_1[0][2];
  int finnishG = animation_table_1[0][3];
  int finnishB = animation_table_1[0][4];
  int cycles = animation_table_1[0][5];
  int startR = animation_table_1[0][6];
  int startG = animation_table_1[0][7];
  int startB = animation_table_1[1][0];

  uint8_t r = (finnishR - startR) * animation_i / cycles + startR;
  uint8_t g = (finnishG - startG) * animation_i / cycles + startG;
  uint8_t b = (finnishB - startB) * animation_i / cycles + startB;

  for (int i = leds1; i <= leds2; i++) {
    leds[i] = CRGB(r, g, b);
  }
  animation_i++;
  if (animation_i >= cycles) {
    for (int i = leds1; i < leds2; i++) {
      leds[i] = CRGB(finnishR, finnishG, finnishB);
    }
    animation_var_1 = 0;
  }
  FastLED.show();
}

void setup_rainbow() {
  normal_setup();
  animation_var_1 = 4;
}

void normal_setup() {
  clear_strip();
  animation_step_time = 100;
  animation_i = 0;
  animation_var_1 = 0;
}

void setup_random1() {
  for (int i = 0; i < NUM_LEDS; i++) {
    for (int i = 0; i < 8; i++) {
      animation_table_1[i][i] = 0;
    }
    //Start R, Start G, Start B, fR, fG, fB, cycle, how many cycles
  }
  normal_setup();
  animation_var_1 = 10; //How many sections
  animation_step_time = 100;
}

void setup_chosen(int lamps1, int lamps2, CRGB newColor, boolean doFade = false, int cycles = 20, int cycleLength = 100) {
  animation_step_time = cycleLength;
  animation_var_1 = (int) doFade;
  animation_i = 0;
  doing_animation = false;
  if (doFade) {
    animation_table_1[0][0] = lamps1;
    animation_table_1[0][1] = lamps2;
    animation_table_1[0][2] = newColor.r;
    animation_table_1[0][3] = newColor.g;
    animation_table_1[0][4] = newColor.b;
    animation_table_1[0][5] = cycles;
    animation_table_1[0][6] = leds[lamps1].r;
    animation_table_1[0][7] = leds[lamps1].g;
    animation_table_1[1][0] = leds[lamps1].b;
  } else {
    for (int i = lamps1; i <= lamps2; i++) {
      leds[i] = newColor;
    }
    FastLED.show();
  }
}