/*
  範例名稱：無線氣象台
  版本：wifi-line notify
*/
#include <Wire.h> 
#include <Adafruit_Sensor.h> 
#include <Adafruit_BME280.h> 
#include <ESP8266WiFi.h> 
#include <WiFiClient.h> 
#include <TridentTD_LineNotify.h> 
// 修改成上述寄到登入郵箱的 Token號碼
#define LINE_TOKEN "申請LINE Notify產生的Token號碼"
#include <PubSubClient.h>

// 設定無線基地台SSID跟密碼
const char* ssid     = "您的SSID";
const char* password = "SSID密碼";

// 將變數值更改為HomeAssistant IP地址，以便連接到MQTT Broker
const char* mqtt_server = "ip";
// 若MQTT Broker有設定認證請輸入自己設定的帳密
const char* mqtt_user = "mqtt username";
const char* mqtt_password = "mqtt password";

// 初始化espClient。如果您在家庭自動化系統中運行多個ESP，則應更改每個espClient變數名稱
WiFiClient espClient;
PubSubClient client(espClient);

Adafruit_BME280 bme; // I2C

// 輔助計時器變數
long now = millis();
long lastMeasure = 0;

//設定wifi初始化
void setup_start(){
  WiFi.mode(WIFI_STA);
  // 連接無線基地台
  WiFi.begin(ssid, password);
  Serial.print("\n\r \n\rWorking to connect");
  // 等待連線，並從 Console顯示 IP
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.print("Connected to ");
  Serial.println(ssid);
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());
  bool status;
  Serial.println(F("BMP280 test"));
  status = bme.begin(0x76); 
  if (!status) {  
    Serial.println("Could not find a valid BMP280 sensor, check wiring!");
    while (1);
  }
  client.setServer(mqtt_server, 1883);  
}

// 此功能將您的ESP8266重新連接到MQTT broker
// 如果要與ESP8266訂閱更多主題，請更改下面的功能
void reconnect() {
  // 循環直到我們重新聯繫
  while (!client.connected()) {
    Serial.print("Attempting MQTT connection...");
    String clientId = "ESP8266Client-";
    clientId += String(random(0xffff), HEX);
    if (client.connect(clientId.c_str(),mqtt_user,mqtt_password)) {
      Serial.println("connected");  
      // 訂閱或重新訂閱主題
      // 您可以訂閱更多主題 (可以控制更多燈泡等等)
      client.subscribe("hotwater/control");
    } else {
      Serial.print("failed, rc=");
      Serial.print(client.state());
      Serial.println(" try again in 5 seconds");
      // 重試前等待5秒鐘
      delay(5000);
    }
  }
}

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

  // 等待序列初始化。
  while(!Serial) { }
  
  // 深度睡眠模式設定60秒，ESP8266自身喚醒，當GPIO 16（在Nodemcu板D0）連接到復位引腳時
  setup_start();
  sendlineval();
  ESP.deepSleep(18e8);//每30分鐘傳送一次訊息
}

void loop() {  
}
//發送訊息到Line聊天室
void sendlineval(){
  if (!client.connected()) {
    reconnect();
  } 
    float Temp = bme.readTemperature();
    Serial.print("T=");    
    Serial.print(Temp);
    Serial.print(" *C");
    float Humidity = bme.readHumidity();
    Serial.print(" Humidity = ");
    Serial.print(Humidity);
    Serial.print(" %");
    float Pressure = bme.readPressure() / 100.0F ;
    Serial.print(" P=");
    Serial.print(Pressure);
    Serial.print(" hPa");
    float Altitude = bme.readAltitude(1013.25);
    Serial.print(" A= ");
    Serial.print(Altitude); // this should be adjusted to your local forcase
    Serial.println(" m");

    /*這裏將四個值整合變成一個字串，再一起傳送給MQTT Server*/
    String weatherStr = String(Temp) + "," + String(Humidity) + "," 
    + String(Pressure) + "," + String(Altitude);
    byte arrSize = weatherStr.length() + 1;
    char message[arrSize];
    weatherStr.toCharArray(message,arrSize);
    Serial.println(message);
    client.publish("mysql/weather", message);
    
    String line_notify_result = "";
    line_notify_result = "現在溫度：" + String(Temp) + " *C\n"
                       + "濕度：" + String(Humidity) + " %\n"
                       + "大氣壓力：" + String(Pressure) + " hPa\n"
                       + "海拔：" + String(Altitude) + " m";
    LINE.setToken(LINE_TOKEN);
  
    // 先換行再顯示
    LINE.notify("\n" + line_notify_result);
}