#include <Adafruit_NeoPixel.h>
 #include <WiFi.h>
#include <WiFiClientSecure.h>
#define NUM_REGION 14
int pixelRegion[NUM_REGION] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13};
#define SIGNAL_PIN  18

const char* ssid     = "Abhinav";
const char* password = "jithunandu";
const char* csvHost  = "raw.githubusercontent.com";
const int csvPort    = 443;
const char* csvURL   = "/AbhinavAjith1729/Kerala-Weather-Data/main/Weather.csv";

Adafruit_NeoPixel strip(NUM_REGION, SIGNAL_PIN, NEO_GRB + NEO_KHZ800);

#define RED_COL     1
#define ORANGE_COL  2
#define GREEN_COL   3

uint32_t red = strip.Color(255, 0, 0);
uint32_t orange = strip.Color(255, 60, 0);
uint32_t green = strip.Color(0, 255, 0);
uint32_t blue = strip.Color(0, 0, 255);
uint32_t white= strip.Color(255, 255, 255);
uint32_t pink = strip.Color(255, 105, 80);
uint32_t cyan = strip.Color(0, 255, 255);

#define UPDATE_INTERVAL 10
unsigned long lastUpdateTime = 0;

void setPixelColor(int region, int cases) {

  // array starts at 0
  region = region - 1;
  
  if(cases == RED_COL) strip.setPixelColor(pixelRegion[region], red);
  else if(cases == ORANGE_COL) strip.setPixelColor(pixelRegion[region], orange);
  else if(cases == GREEN_COL) strip.setPixelColor(pixelRegion[region], green);
}


void updateMap() {

Serial.println();
Serial.println("------------ Updating Map ------------");

WiFiClientSecure httpsClient;
httpsClient.setInsecure();

 if(!httpsClient.connect(csvHost, csvPort)) {
    Serial.println("Unable to connect to Github :(");
    return;
  }
  Serial.println("Connected to Github");
  httpsClient.print(String("GET ") + csvURL + " HTTP/1.1\r\n" +
    "Host: " + csvHost + "\r\n" +
    "Connection: close\r\n\r\n");

    // download all the headers
  while (httpsClient.connected()) {
    String line = httpsClient.readStringUntil('\n');
    if (line == "\r") break;
  }

 // download first line (column headers)
  String line = httpsClient.readStringUntil('\n');

// download all the lines
  while(httpsClient.available()) {

     // get line and convert into char array (for strtok)
    String line = httpsClient.readStringUntil('\n');
    char buf[line.length()];
    line.toCharArray(buf, sizeof(buf));

    // divide the line into tokens (comma-separated)
    char *p = buf;
    char *str;
    int tokenCount = 0;
    int regionCode;
    int regionNewCases;

    // extract region code and number of new cases
    while ((str = strtok_r(p, ",", &p)) != NULL) {
      tokenCount++;
      if(tokenCount == 1) regionCode = atoi(str);
      else if(tokenCount == 3) regionNewCases = atoi(str); 
    }

Serial.print("Region: ");
Serial.print(regionCode);
Serial.print(", new cases: ");
Serial.println(regionNewCases);

setPixelColor(regionCode, regionNewCases);
  }
  strip.show();
  Serial.println("Pixel colors updated");
}

void setup() {
  pinMode(0,INPUT_PULLUP);
   pinMode(17,INPUT);
  Serial.begin(115200);
  Serial.println("ItalyMap - Covid New Cases per Region");
  Serial.println();
  
  strip.begin();
  strip.setBrightness(50);
  strip.clear();
  Serial.println("NeoPixel library init DONE");
 
  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, password);
  Serial.println("WiFi init DONE");
  
  while (WiFi.status() != WL_CONNECTED) {
    delay(100);
  }
  Serial.print("Connected to ");
  Serial.println(ssid);
   updateMap();
   
}

void loop()
{

if(digitalRead(17)==HIGH)
{

  if(millis() > lastUpdateTime + (UPDATE_INTERVAL * 1000)) {
    updateMap();
    lastUpdateTime = millis();
  }

}

 if(digitalRead(17)==LOW)
 {
 for(int i = 0; i < 5; i++) strip.setPixelColor(i, green);
  for(int i = 5; i < 12; i++) strip.setPixelColor(i, white);
  for(int i = 12; i < NUM_REGION; i++) strip.setPixelColor(i, red); 
  strip.show();
  delay(900);

  strip.clear();
  delay(500);

  
 }
  


}