#include <ESP8266WiFi.h>
#include <PubSubClient.h>

// Update these with values suitable for your network.

const int CONFIG_PIN = D0;

const char *ssid = "AcS";
const char *password = "67993776724373201548";
const char* mqtt_server = "192.168.1.98";
const String mqtt_client = "home/S000";
const String mqtt_topic_t = mqtt_client + String("/temperatur");
const String mqtt_topic_h = mqtt_client + String("/humidity");
const String mqtt_topic_p = mqtt_client + String("/pressure");
const String mqtt_topic_l = mqtt_client + String("/lux");
const String mqtt_topic_led_state = mqtt_client + String("/led_state");
const String mqtt_topic_led = mqtt_client + String("/led");

WiFiClient espClient;
PubSubClient client(espClient);
long lastMsg = 0;
char msg[50];
int value = 0;
unsigned long t0;


#include <Wire.h>
#include <SPI.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BME280.h>

#define BME_SCK 13
#define BME_MISO 12p
#define BME_MOSI 11
#define BME_CS 10

#define SEALEVELPRESSURE_HPA (1013.25)

Adafruit_BME280 bme; // I2C

#include <Adafruit_TSL2561_U.h>
Adafruit_TSL2561_Unified tsl = Adafruit_TSL2561_Unified(TSL2561_ADDR_FLOAT, 12345);

unsigned long delayTime;


void setup() {
  //pinMode(BUILTIN_LED, OUTPUT);     // Initialize the BUILTIN_LED pin as an output
  //digitalWrite(BUILTIN_LED, HIGH);
  Serial.begin(115200);
  setup_wifi();
  setup_sensor();
  client.setServer(mqtt_server, 1883);
  //client.setCallback(callback);

  if (!client.connected()) {
    reconnect();
  }
  delay(500);
  client.loop();
  delay(500);
  process_sensor();
  delay(500);
  client.loop();
  delay(500);
  ESP.deepSleep(300e6);
}

 

void setup_wifi() {
  delay(10);
  // We start by connecting to a WiFi network
  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 setup_sensor() {
    Serial.print(F("BME280 setup... "));

    bool status;
    // default settings
    // (you can also pass in a Wire library object like &Wire2)
    status = bme.begin();  
    if (!status) {
        while(1) {
          Serial.println("Could not find a valid BME280 sensor, check wiring!");
          //while (1);
          delay(2000);
        }
    }

    tsl.enableAutoRange(true); 
    tsl.setIntegrationTime(TSL2561_INTEGRATIONTIME_101MS);
    delayTime = 1000;
    Serial.println("done.");
}



void callback(char* topic, byte* payload, unsigned int length) {
  Serial.print("Message arrived [");
  Serial.print(topic);
  Serial.print("] ");
  for (int i = 0; i < length; i++) {
    Serial.print((char)payload[i]);
  }
  Serial.println();

  // Switch on the LED if an 1 was received as first character
  if ((char)payload[0] == '1') {
    digitalWrite(BUILTIN_LED, LOW);   // Turn the LED on (Note that LOW is the voltage level
    // but actually the LED is on; this is because
    // it is acive low on the ESP-01)
  } else {
    digitalWrite(BUILTIN_LED, HIGH);  // Turn the LED off by making the voltage HIGH
  }

}



void reconnect() {
  // Loop until we're reconnected
  const String start_topic = mqtt_client + String("/client");
  while (!client.connected()) {
    Serial.print("Attempting MQTT connection...");
    // Attempt to connect
    if (client.connect(mqtt_client.c_str())) {
      Serial.println("connected");
      // Once connected, publish an announcement...
      client.publish(start_topic.c_str(), "hello world");
      // ... and resubscribe
      client.subscribe(mqtt_topic_led.c_str());
    } else {
      Serial.print("failed, rc=");
      Serial.print(client.state());
      Serial.println(" try again in 5 seconds");
      // Wait 5 seconds before retrying
      delay(5000);
    }
  }
}



void process_sensor() {
  unsigned long t1 = millis();
  Serial.print("ReadSensor: ");
  Serial.println(t1-t0);
  t0 = t1;
  auto temperatur = bme.readTemperature();
  auto humidity =  bme.readHumidity();
  auto pressure = bme.readPressure() / 100.0F;
  
  int led = !digitalRead(BUILTIN_LED);

  sensors_event_t event;
  tsl.getEvent(&event);
  float light = 0.0;
  if (event.light) {
    light = event.light;
  }
  
  snprintf(msg, 75, "T: %0.2f *C, P: %0.2f hPa, H: %0.2f, L: %0.0f LED: %d", 
                    temperatur, pressure, humidity, light, led);
  client.publish(mqtt_topic_t.c_str(), String(temperatur).c_str());
  client.publish(mqtt_topic_h.c_str(), String(humidity).c_str());
  client.publish(mqtt_topic_p.c_str(), String(pressure).c_str());
  client.publish(mqtt_topic_l.c_str(), String(light).c_str());
  client.publish(mqtt_topic_led_state.c_str(), String(led).c_str());
  Serial.println(msg);  
}



void loop() {
  delay(500);
}