mmorpg/Assets/Script/gplayAuth.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using GooglePlayGames;
using GooglePlayGames.BasicApi;
using UnityEngine.SocialPlatforms;
using System.Threading;
using UnityEngine.UI;
using Firebase.Firestore;
using Firebase.Extensions;
using System;
using UnityEngine.Networking;
using System.Text.RegularExpressions;
using TMPro;
using UnityEngine.SceneManagement;


public class gplayAuth : MonoBehaviour{

    public TMP_Text gplayText;
    public TMP_Text firebaseStatText;
    public string AuthCode;
    public static string userID;
    bool IsConnected;

    public TMP_InputField saveName, coins, item1, item2, item3 ; 
    public TMP_Text saveStatText;
    public static string userNameCloud;

    public TMP_Text saveNameTxt , coinsTxt, item1Txt, item2Txt, item3Txt;
    #if UNITY_ANDROID
    void Start() {
        IsConnected =false;
        PlayGamesClientConfiguration config = new PlayGamesClientConfiguration.Builder().RequestServerAuthCode(false)
        .RequestEmail().RequestIdToken().EnableSavedGames().Build();
        PlayGamesPlatform.InitializeInstance(config);
        PlayGamesPlatform.DebugLogEnabled = true;
        PlayGamesPlatform.Activate();
        //GPGSLogin();    
    }
   

    public void GPGSLogin(){
        PlayGamesPlatform.Instance.Authenticate((success) => {
                if(success == true){
                    //logged into Google Play Games 
                    gplayText.text = "G-Play Connected";
                    Firebase.FirebaseApp.CheckAndFixDependenciesAsync().ContinueWithOnMainThread(task => {

                        if(task.Result == Firebase.DependencyStatus.Available){
                            //no dependency issue with firebase, continue to login 
                            ConnectToFirebase();
                            
                        }
                        else{
                            //error with firebase Dependecies plugin
                            firebaseStatText.text = "Dependency Error";
                        }

                    }
                );

                }
                else{
                    Debug.LogError("Gplay failed");
                }
            }

        );
    }

    public void SaveData(){
        //checking if connected to firebase
        if(IsConnected){

            FirebaseFirestore db = FirebaseFirestore.DefaultInstance;

            string playerName = saveName.text;
            int playerCoin = int.Parse(coins.text);
            List<string> plyaerInventoryItems = new List<string>();
            plyaerInventoryItems.Add(item1.text);
            plyaerInventoryItems.Add(item2.text);
            plyaerInventoryItems.Add(item3.text);

            Dictionary<string, object> saveValues = new Dictionary<string, object>{
                {"playerName" , playerName},
                {"playerCoin" , playerCoin},
                {"playerInventory" , plyaerInventoryItems},
            }; 

            DocumentReference docRef = db.Collection("PlayerData").Document(userID);
            docRef.SetAsync(saveValues).ContinueWithOnMainThread(task => {
                if(task.IsCompleted){
                    saveStatText.text = "Save Completed Firestore";
                }
                else{
                    saveStatText.text = "Failed to save data to firestore";
                }
            });

        }else{
            //firebase_Not_Connected_error
            Debug.LogError("firebase Not connected to save");
        }

    } 

    public void LoadData(){
        if(IsConnected){
            FirebaseFirestore db = FirebaseFirestore.DefaultInstance;
            DocumentReference docRef = db.Collection("PlayerData").Document(userID);

            docRef.GetSnapshotAsync().ContinueWithOnMainThread(task => {
                DocumentSnapshot snapshot = task.Result;
                if(snapshot.Exists){
                    //load data 
                    Dictionary<string,object> dic = snapshot.ToDictionary(ServerTimestampBehavior.Estimate);
                    Debug.Log("Reading data");
                    foreach(KeyValuePair<string,object> item in dic){
                        Debug.Log(item.Key + " : " +item.Value.ToString());
                    }
                    saveNameTxt.text = snapshot.GetValue<string>("playerName");
                    coinsTxt.text = snapshot.GetValue<int>("playerCoin").ToString();

                    List<string> inventoryList = snapshot.GetValue<List<string>>("playerInventory");
                    item1Txt.text = inventoryList[0];
                    item2Txt.text = inventoryList[1];
                    item3Txt.text = inventoryList[2]; 


                }else{
                    //show error previous data doesnt exists to load 
                    Debug.Log("No previous data to load");
                }
            });
        }
    }

    public TMP_InputField registerEmail, registerPassword; 

    public void RegisterUser(){
        Firebase.Auth.FirebaseAuth auth = Firebase.Auth.FirebaseAuth.DefaultInstance;
        auth.CreateUserWithEmailAndPasswordAsync(registerEmail.text, registerPassword.text).ContinueWith(task => {
    if (task.IsCanceled) {
        Debug.LogError("CreateUserWithEmailAndPasswordAsync was canceled.");
    return;
    }
    if (task.IsFaulted) {
        Debug.LogError("CreateUserWithEmailAndPasswordAsync encountered an error: " + task.Exception);
    return;
  }

     // Firebase user has been created.
    Firebase.Auth.AuthResult result = task.Result;
    Debug.LogFormat("Firebase user created successfully: {0} ({1})",
    
      result.User.DisplayName, result.User.UserId);
      OnAuthSuccess(result.User);
      userNameCloud = registerEmail.text;
    });
    }

    public TMP_InputField loginEmail, loginPassword; 

    public void LoginUser(){

        Firebase.Auth.FirebaseAuth auth = Firebase.Auth.FirebaseAuth.DefaultInstance;
        auth.SignInWithEmailAndPasswordAsync(loginEmail.text, loginPassword.text).ContinueWith(task => {
    if (task.IsCanceled) {
        Debug.LogError("SignInWithEmailAndPasswordAsync was canceled.");
        return;
    }
    if (task.IsFaulted) {
        Debug.LogError("SignInWithEmailAndPasswordAsync encountered an error: " + task.Exception);
        return;
    }

    Firebase.Auth.AuthResult result = task.Result;
    Debug.LogFormat("User signed in successfully: {0} ({1})",
        result.User.DisplayName, result.User.UserId);
        OnAuthSuccess(result.User);
        userNameCloud = loginEmail.text;
        
    });
    }

    void ConnectToFirebase(){
        AuthCode=PlayGamesPlatform.Instance.GetServerAuthCode();
        Debug.Log("Gplay auth " + AuthCode);
        Firebase.Auth.FirebaseAuth FBAuth = Firebase.Auth.FirebaseAuth.DefaultInstance;
            Firebase.Auth.Credential FBCred =  Firebase.Auth.PlayGamesAuthProvider.GetCredential(AuthCode);
            FBAuth.SignInWithCredentialAsync(FBCred).ContinueWithOnMainThread(task => {
                if(task.IsCanceled){
                    firebaseStatText.text = "sign in cancelled";

                }
                if(task.IsFaulted){
                    firebaseStatText.text = "Error:"+task.Result;
                }

                Firebase.Auth.FirebaseUser user = FBAuth.CurrentUser;
                if(user != null){
                    // userID = user.UserId;
                    // firebaseStatText.text = "Signed in As :"+ user.DisplayName;
                    // IsConnected = true;
                    OnAuthSuccess(user);
                    userNameCloud = user.DisplayName;
                }
                else{
                    //error getting username
                }
            });
        
        // PlayGamesPlatform.Instance.RequestServerSideAccess(true , code => {
        //     AuthCode = code;
        //     Firebase.Auth.FirebaseAuth FBAuth = Firebase.Auth.FirebaseAuth.DefaultInstance;
        //     Firebase.Auth.Credential FBCred =  Firebase.Auth.PlayGamesAuthProvider.GetCredential(AuthCode);
        //     FBAuth.SignInWithCredentialAsync(FBCred).ContinueWithOnMainThread(task => {
        //         if(task.IsCanceled){
        //             firebaseStatText.text = "sign in cancelled";

        //         }
        //         if(task.IsFaulted){
        //             firebaseStatText.text = "Error:"+task.Result;
        //         }

        //         Firebase.Auth.FirebaseUser user = FBAuth.CurrentUser;
        //         if(user != null){
        //             firebaseStatText.text = "Signed in As :"+ user.DisplayName;
        //         }
        //         else{
        //             //error getting username
        //         }
        //     });
        // });
    }

    public void OnAuthSuccess(Firebase.Auth.FirebaseUser user){
        userID = user.UserId;
        firebaseStatText.text = "Signed in As :"+ user.DisplayName;
        IsConnected = true;
        //load game scene
        SceneManager.LoadScene("MenuScene");
    }

    #endif
}