/*
 * production.cpp
 *
 *  Created on: Aug 20, 2017
 *      Author: wn
 */
#include "defines.h"

#define MQTT_MAX_PACKET_SIZE 256


#include <ESP8266WiFi.h>
#include <ESP8266WebServer.h>
#include <PubSubClient.h>
#include <OneWire.h>
#include <DallasTemperature.h>

#include "configuration.h"



WiFiClientSecure espClient;
PubSubClient client(espClient);

#define ONE_WIRE_BUS 2
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);

extern uint32_t startTime;


void setup_wifi() {
  delay(10);

  // We start by connecting to a WiFi network
#ifdef DEBUG
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(configBlock.wifiSsid);
#endif

  WiFi.begin(configBlock.wifiSsid, configBlock.wifiKey);

  while (WiFi.status() != WL_CONNECTED) {
    delay(50);
#ifdef DEBUG
    Serial.print(".");
#endif
  }

#ifdef DEBUG
  Serial.println("");
  Serial.println("WiFi connected");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
#endif
}



void setupProduction() {
  setup_wifi();
  client.setServer(configBlock.mqttBroker, configBlock.mqttPort);

  sensors.begin();
#ifdef DEBUG
  uint8_t num = sensors.getDeviceCount();
  Serial.print("device count: ");
  Serial.println(num);
#endif

  sensors.setResolution(12);
}

void reconnect() {
  // Loop until we're reconnected
  while (!client.connected()) {
#ifdef DEBUG
    Serial.print("Attempting MQTT connection...");
#endif
    // Attempt to connect
    //char clientId[128];
    //snprintf(clientId, 127, "esp%s", WiFi.macAddress().c_str());
    if (client.connect(configBlock.mqttClientId, configBlock.mqttUser, configBlock.mqttPass)) {
#ifdef DEBUG
      Serial.println("connected");
#endif
      // Once connected, publish an announcement...
      //client.publish("IoT/espThermometer/status", "hello world");
    } else {
#ifdef DEBUG
      Serial.print("failed, rc=");
      Serial.print(client.state());
      Serial.println(" try again in 5 seconds");
#endif
      // Wait 5 seconds before retrying
      delay(5000);
    }
  }
}


void mqtt_connect() {
  if (!client.connected()) {
    reconnect();
  }
  client.loop();
}


void read_thermometer() {
    sensors.requestTemperatures();

    float t = sensors.getTempCByIndex(0);
#ifdef DEBUG
    Serial.print(t);
    Serial.println();
#endif

    int16_t t1 = (int)t;
    int16_t t2 = (int)((t - t1)*100);


    uint16_t vcc = ESP.getVcc();
    uint16_t v1 = vcc / 1000;
    uint16_t v2 = (vcc - v1 * 1000);
#ifdef DEBUG
    Serial.print(vcc);
    Serial.println();
#endif


    uint32_t duration = millis() - startTime;

    //char topic[128];
    //snprintf(topic, 127, "IoT/espThermometer2/%s/measurement", WiFi.macAddress().c_str());
    char payload[128];
    snprintf(payload, 127, "%s %d.%d %d.%d %ld", configBlock.mqttClientId, t1, t2, v1, v2, duration);
#ifdef DEBUG
    Serial.println(payload);
#endif
    client.publish(configBlock.mqttTopic, payload, true);


}

void loopProduction() {
  static uint32_t lastMillis = 0;
  mqtt_connect();

  uint32_t currentMillis = millis();
  if (currentMillis - lastMillis > 1000) {
    lastMillis = currentMillis;

    read_thermometer();



#ifdef SLEEP
#ifdef DEBUG
    Serial.println("Sleeping");
#endif
    client.disconnect();
    ESP.deepSleep(configBlock.sleepTime * 1000000);
#endif
  }

}