#include <WiFi.h>
#include <WiFiClient.h>
#include <ESPAsyncWebSrv.h>
#include <ThingSpeak.h>

const char* ssid = "Wokwi-GUEST";
const char* password = "";

// ThingSpeak settings
const char* thingSpeakServer = "api.thingspeak.com";
const char* apiKey = "BYMOTVVZBG25BVUU";
const unsigned long channelID = 2303812;

AsyncWebServer server(80);

bool isBikeUnlocked = false;  // Initially, the bike is locked
const int ledPin = 13;  // GPIO pin to which your LED is connected
unsigned long unlockTime = 0;
unsigned long lockTime = 0;

void setup() {
  // Initialize Serial Monitor
  Serial.begin(115200);

  // Connect to Wi-Fi
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi");
  WiFiClient client;
  // Initialize ThingSpeak
  ThingSpeak.begin(client);

  // Configure the LED pin as an OUTPUT
  pinMode(ledPin, OUTPUT);

  // Handle URL request to lock/unlock the bike
  server.on("/bike", HTTP_GET, [](AsyncWebServerRequest *request){
    String action = request->arg("action");
    if (action == "lock") {
      if (isBikeUnlocked) {
        digitalWrite(ledPin, LOW);  // Turn off the LED
        isBikeUnlocked = false;
        lockTime = millis();
        sendToThingSpeak(lockTime - unlockTime, false); // Calculate and send time to ThingSpeak
        request->send(200, "text/plain", "Bike Locked");
      }
    } else if (action == "unlock") {
      if (!isBikeUnlocked) {
        digitalWrite(ledPin, HIGH);  // Turn on the LED
        isBikeUnlocked = true;
        unlockTime = millis();
        sendToThingSpeak(0, true); // Send an unlock event to ThingSpeak
        request->send(200, "text/plain", "Bike Unlocked");
      }
    }
  });

  // Start server
  server.begin();
}

void sendToThingSpeak(unsigned long time, bool unlockEvent) {
  if (ThingSpeak.writeField(channelID, unlockEvent ? 1 : 2, unlockEvent ? 1 : 0, apiKey)) {
    Serial.println("Data sent to ThingSpeak.");
  } else {
    Serial.println("Failed to send data to ThingSpeak.");
  }
}

void loop() {
  // You can add additional functionality or checks here if needed
}