#include <WiFi.h>
#include "ThingSpeak.h"

const char* WIFI_NAME = "Wokwi-GUEST";   // WiFi SSID
const char* WIFI_PASSWORD = "";  // WiFi Password

const int myChannelNumber = 2493571;      // ThingSpeak channel number
const char* myApiKey = "E78D39O7ESHHDCWT"; // ThingSpeak API key

WiFiClient client;

void connectWiFi() {
  Serial.println("Connecting to WiFi...");
  WiFi.begin(WIFI_NAME, WIFI_PASSWORD);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("WiFi not connected");
  }
  Serial.println("WiFi connected!");
  Serial.println("Local IP: " + WiFi.localIP().toString());
}

void sendDataToThingSpeak(int channelNumber, const char* apiKey) {
  ThingSpeak.begin(client);
  
  int pm25MappedValue = random(0, 101);
  int pm10MappedValue = random(0, 101);
  int o3MappedValue = random(0, 201);
  int no2MappedValue = random(0, 501);
  int nh3MappedValue = random(0, 501);
  int so2MappedValue = random(0, 1001);

  Serial.println("PM2.5 Value: " + String(pm25MappedValue));
  Serial.println("PM10 Value: " + String(pm10MappedValue));
  Serial.println("O3 Value: " + String(o3MappedValue));
  Serial.println("NO2 Value: " + String(no2MappedValue));
  Serial.println("NH3 Value: " + String(nh3MappedValue));
  Serial.println("SO2 Value: " + String(so2MappedValue));

  ThingSpeak.setField(1, pm25MappedValue);
  ThingSpeak.setField(2, pm10MappedValue);
  ThingSpeak.setField(3, o3MappedValue);
  ThingSpeak.setField(4, no2MappedValue);
  ThingSpeak.setField(5, nh3MappedValue);
  ThingSpeak.setField(6, so2MappedValue);

  int status = ThingSpeak.writeFields(channelNumber, apiKey);

  if (status == 200) {
    Serial.println("Data pushed successfully");
  } else {
    Serial.println("Push error " + String(status));
  }

  Serial.println("---");
}

void setup() {
  Serial.begin(115200);
  connectWiFi();
}

void loop() {
  sendDataToThingSpeak(myChannelNumber, myApiKey);
  delay(15000); // Wait 10 seconds before pushing next set of data
}