#include <ESP8266WiFi.h>
#include <ESP8266WiFiGeneric.h>
#include <Wire.h>
#include <Seeed_BME280.h>

const char* ssid = "***";
const char* password = "***";
char bigstring[46];
WiFiClient espClient;
BME280 bme280;
String Token  = "***";
String User   = "***";
int length;

void setup() {
  Serial.begin(115200);
  Serial.setTimeout(2000);
  startwifi();
  startbme();
}

byte pushover(char *pushovermessage, char *priority) {
   String Msg = pushovermessage;
   String prio = priority;
  length = 91 + prio.length() + Msg.length();
    if (espClient.connect("api.pushover.net", 80)) {
      Serial.println("Sending message…");
      espClient.println("POST /1/messages.json HTTP/1.1");
      espClient.println("Host: api.pushover.net");
      espClient.println("Connection: close\r\nContent-Type: application/x-www-form-urlencoded");
      espClient.print("Content-Length: ");
      espClient.print(length);
      espClient.println("\r\n");
      espClient.print("token="+Token+"&user="+User+"&priority="+priority+"&message="+Msg);
      /*
      while(espClient.connected()) {
        while(espClient.available()) {
          char ch = espClient.read();
          Serial.write(ch);
        }
      }
      */
      espClient.stop();
      Serial.println("Done");
      Serial.println("");
      delay(100);
    }
}

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

void startbme() {
  Wire.pins(0,2);
  Wire.begin();

  if(!bme280.init()){
    pushover("Kein+BME280-Sensor+gefunden!","1");
    Serial.println("Could not find a valid BME280 sensor, check wiring!");
    while (1);
  }
}

char* setmychar(char* string1, char* string2, char* string3, char* string4, char* string5) {
  bigstring[0] = 0;
  strcat(bigstring, string1);
  strcat(bigstring, string2);
  strcat(bigstring, string3);
  strcat(bigstring, string4);
  strcat(bigstring, string5);
  return bigstring;
}

void loop() {

  delay(1000);

  char cbuffer1[6];
  char cbuffer2[3];

  dtostrf(bme280.getTemperature(), 5, 2, cbuffer1);
  cbuffer1[5] = 0;

  dtostrf(bme280.getHumidity(), 2, 0, cbuffer2);
  cbuffer2[2] = 0;

  pushover(setmychar("Temperatur%3A+", cbuffer1, "°C+++Luftfeuchtigkeit%3A+", cbuffer2, "%25"),"0");
  delay(1800000);
}