
/**
 * Created by K. Suwatchai (Mobizt)
 * 
 * Email: k_suwatchai@hotmail.com
 * 
 * Github: https://github.com/mobizt
 * 
 * Copyright (c) 2021 mobizt
 *
*/

#if defined(ESP32)
#include <WiFi.h>
#include <FirebaseESP32.h>
#elif defined(ESP8266)
#include <ESP8266WiFi.h>
#include <FirebaseESP8266.h>
#endif


//Provide the token generation process info.
#include <addons/TokenHelper.h>

//Provide the RTDB payload printing info and other helper functions.
#include <addons/RTDBHelper.h>

/* 1. Define the WiFi credentials */
#define WIFI_SSID "WIFI_AP"
#define WIFI_PASSWORD "WIFI_PASSWORD"

//For the following credentials, see examples/Authentications/SignInAsUser/EmailPassword/EmailPassword.ino

/* 2. Define the API Key */
#define API_KEY "API_KEY"

/* 3. Define the RTDB URL */
#define DATABASE_URL "URL" //<databaseName>.firebaseio.com or <databaseName>.<region>.firebasedatabase.app

/* 4. Define the user Email and password that alreadey registerd or added in your project */
#define USER_EMAIL "USER_EMAIL"
#define USER_PASSWORD "USER_PASSWORD"

//Define Firebase Data object
FirebaseData fbdo;

FirebaseAuth auth;
FirebaseConfig config;

unsigned long sendDataPrevMillis = 0;

unsigned long count = 0;

void setup()
{

    Serial.begin(115200);

    WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
    Serial.print("Connecting to Wi-Fi");
    while (WiFi.status() != WL_CONNECTED)
    {
        Serial.print(".");
        delay(300);
    }
    Serial.println();
    Serial.print("Connected with IP: ");
    Serial.println(WiFi.localIP());
    Serial.println();

    Serial.printf("Firebase Client v%s\n\n", FIREBASE_CLIENT_VERSION);

    /* Assign the api key (required) */
    config.api_key = API_KEY;

    /* Assign the user sign in credentials */
    auth.user.email = USER_EMAIL;
    auth.user.password = USER_PASSWORD;

    /* Assign the RTDB URL (required) */
    config.database_url = DATABASE_URL;

    /* Assign the callback function for the long running token generation task */
    config.token_status_callback = tokenStatusCallback; //see addons/TokenHelper.h

    //Or use legacy authenticate method
    //config.database_url = DATABASE_URL;
    //config.signer.tokens.legacy_token = "<database secret>";

    Firebase.begin(&config, &auth);

    //Comment or pass false value when WiFi reconnection will control by your code or third party library
    Firebase.reconnectWiFi(true);
}

void loop()
{
    //Flash string (PROGMEM and  (FPSTR), String C/C++ string, const char, char array, string literal are supported
    //in all Firebase and FirebaseJson functions, unless F() macro is not supported.

    if (Firebase.ready() && (millis() - sendDataPrevMillis > 15000 || sendDataPrevMillis == 0))
    {
        sendDataPrevMillis = millis();

        FirebaseJson json;
        json.setDoubleDigits(3);
        json.add("value", count);

        Serial.printf("Set json... %s\n", Firebase.RTDB.setJSON(&fbdo, "/test/json", &json) ? "ok" : fbdo.errorReason().c_str());

        Serial.printf("Get json... %s\n", Firebase.RTDB.getJSON(&fbdo, "/test/json") ? fbdo.to<FirebaseJson>().raw() : fbdo.errorReason().c_str());

        FirebaseJson jVal;
        Serial.printf("Get json ref... %s\n", Firebase.RTDB.getJSON(&fbdo, "/test/json", &jVal) ? jVal.raw() : fbdo.errorReason().c_str());

        FirebaseJsonArray arr;
        arr.setFloatDigits(2);
        arr.setDoubleDigits(4);
        arr.add("a", "b", "c", true, 45, (float)6.1432, 123.45692789);

        Serial.printf("Set array... %s\n", Firebase.RTDB.setArray(&fbdo, "/test/array", &arr) ? "ok" : fbdo.errorReason().c_str());

        Serial.printf("Get array... %s\n", Firebase.RTDB.getArray(&fbdo, "/test/array") ? fbdo.to<FirebaseJsonArray>().raw() : fbdo.errorReason().c_str());

        Serial.printf("Push json... %s\n", Firebase.RTDB.pushJSON(&fbdo, "/test/push", &json) ? "ok" : fbdo.errorReason().c_str());

        json.set("value", count + 0.29745);
        Serial.printf("Update json... %s\n\n", Firebase.RTDB.updateNode(&fbdo, "/test/push/" + fbdo.pushName(), &json) ? "ok" : fbdo.errorReason().c_str());

        count++;
    }
}
