#include <ESP8266WiFi.h>

const char* ssid     = "CTDO-g"; //Netzwerk Name
const char* password = "ctdo2342"; //Wifi Passwort
const char* host = "rpi3.raum.ctdo.de"; //MPD Host
const int httpPort = 6600; //MPD Port
const int buttonPin = 5; //Pin vom Mikrocontroller

int buttonState;
bool previousState;
int previousMillis;
int currentMillis;

void setup() {
  Serial.begin(115200); //Open the Serail Connection for Debugging
  delay(10);
  pinMode(buttonPin, INPUT); //Set the Pin to INPUT for checking the Status

  Serial.print("Connecting to ");  //Print the SSID
  Serial.println(ssid);
  
  WiFi.mode(WIFI_STA); //Open the Wifi connection
  WiFi.begin(ssid, password);
  
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print("."); //Print Dots while Connecting
  }

  Serial.println("");
  Serial.println("WiFi connected");  //Selfexplaining
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());  
}

void loop() {
  currentMillis = millis(); //Save the current Time
  buttonState = digitalRead(buttonPin); //Check the Pin Status
  
  if (currentMillis - previousMillis > 500) {   //Atleast all 500 Milliseconds
     if (buttonState == HIGH && previousState == false) { //If Button pressed
      mpdbass(true); //Make Bass
      previousState = true; 
    } else if (buttonState == LOW && previousState == true) { //If Button released
      mpdbass(false); //stop Bass
      previousState = false;
    } 
  }
}

void mpdbass(bool start) {
  WiFiClient client; //Open Connection
  if (!client.connect(host, httpPort)) { //When not connected
    Serial.println("connection failed"); //Error
    return;
  }
  
  unsigned long timeout = millis();
  while (client.available() == 0) { //While not connected
    if (millis() - timeout > 5000) { //If 5 seconds
      Serial.println(">>> Client Timeout !"); // Timeout
      client.stop();
      return;
    }
  }
  
  while(client.available()){ //Print Client Foo
    String line = client.readStringUntil('\r');
    Serial.print(line);
  }
  
  if (start == true){ //If Button pressed
    Serial.println("Play");
    client.println("addid \"users/lucas/Alben/Function/Incubation/01 Voiceprint.flac\" 0"); //Adds the Song as First Song
    client.println("play 0"); //Play the First song
    client.println("setvol 100"); //set Max volume
  } else if (start == false) {
    Serial.println("Remove");
    client.println("delete 0"); //Remove the first Song (The Bass Song)
    client.println("setvol 60"); //Set back to 60
  }

  while(client.available()){ //Print Client Foo
    String line = client.readStringUntil('\r');
    Serial.print(line);
  }
}