#include "ESP8266WiFi.h"
#include "ESP8266WebServer.h

// https://techtutorialsx.com/2016/10/03/esp8266-setting-a-simple-http-webserver/
ESP8266WebServer server(80);

const int remotePin = D1;
const int buttonPin = D2;
const int motorPin = D3;

void setup() {
    Serial.begin(115200);
    connectWifi();

    server.on("/", handleRootPath);
    server.begin();
    Serial.println("Server listening");
    
    pinMode(BUILTIN_LED, OUTPUT);
    pinMode(remotePin, OUTPUT);
    pinMode(buttonPin, INPUT);
    pinMode(motorPin, OUTPUT);
}


int buttonState = 0;

void loop() {
    if ((WiFi.status() == WL_CONNECTED)) {
        server.handleClient();
    }
    else {
        Serial.println("WiFi not connected!");
        connectWifi();
    }
    
    buttonState = digitalRead(buttonPin);
    
    if (buttonState == HIGH) {
        Serial.println("Button pressed");
        digitalWrite(remotePin, HIGH);
        digitalWrite(motorPin, HIGH);
        digitalWrite(BUILTIN_LED, LOW);
        delay(500);
    }
    else {
        digitalWrite(remotePin, LOW);
        digitalWrite(motorPin, LOW);
        digitalWrite(BUILTIN_LED, HIGH);
    }
    
    delay(10);
}

void handleRootPath() {
  server.send(200, "text/plain", "Hello world");
}

void connectWifi() {
    Serial.print("Connecting to ");
    Serial.println(ssid);
    WiFi.begin(ssid, password);
    while (WiFi.status() != WL_CONNECTED) {
        delay(500);
        Serial.print(".");
    }
    
    Serial.println("WiFi connected.");
    Serial.println("IP address: ");
    Serial.println(WiFi.localIP());
}