#include <ESP8266WiFi.h>
#include <WiFiClient.h>

// WiFi information
const char WIFI_SSID[] = "something";
const char WIFI_PSK[] = "another_thing";
boolean save=0;

// Remote site information
const char http_site[] = "api.thingspeak.com";
const int http_port = 80;

// Pin definitions
const int LED_PIN = D0;

// Global variables
WiFiClient client;

void setup() {

  // Set up serial console to read web page
  Serial.begin(9600);
  Serial.print("Thing GET Example");

  // Set up LED for debugging
  pinMode(LED_PIN, OUTPUT);

  // Connect to WiFi
  connectWiFi();

  // Attempt to connect to website
  if ( !getPage() ) {
    Serial.println("GET request failed");
  }
}

void loop() {

  // If there are incoming bytes, print them
  if ( client.available() ) {
    char c = client.read();
    Serial.print(c);
  }

  // If the server has disconnected, stop the client and WiFi
  if ( !client.connected() ) {
    Serial.println();

    // Close socket and wait for disconnect from WiFi
    client.stop();
    if ( WiFi.status() != WL_DISCONNECTED ) {
      WiFi.disconnect();
    }

    // Turn off LED
    digitalWrite(LED_PIN, LOW);

    // Do nothing
    Serial.println("Finished Thing GET test");
    while (true) {
      delay(1000);
    }
  }
}

// Attempt to connect to WiFi
void connectWiFi() {

  byte led_status = 0;

  // Set WiFi mode to station (client)
  WiFi.mode(WIFI_STA);

  // Initiate connection with SSID and PSK
  WiFi.begin(WIFI_SSID, WIFI_PSK);

  // Blink LED while we wait for WiFi connection
  while ( WiFi.status() != WL_CONNECTED ) {
    digitalWrite(LED_PIN, led_status);
    led_status ^= 0x01;
    delay(100);
  }

  // Turn LED on when we are connected
  digitalWrite(LED_PIN, HIGH);
}

// Perform an HTTP GET request to a remote page
bool getPage() {

  // Attempt to make a connection to the remote server
  if ( !client.connect(http_site, http_port) ) {
    return false;
  }

  // Make an HTTP GET request
  client.println("GET /apps/thinghttp/send_request?api_key=MDSQIAV67DSRV4OW HTTP/1.1");
  client.print("Host: ");
  client.println(http_site);
  client.println("Connection: close");
  client.println();

  return true;
}