mhunt_launcher/lib/Backend/Backend.dart

import 'dart:convert';
import 'dart:io';
import 'dart:math';

import 'package:http/http.dart' as http;
import 'package:mhunt_launcher/Backend/Structures.dart';
import 'package:mhunt_launcher/Shared/Helpers.dart';
import 'package:path_provider/path_provider.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'DebugHelper.dart';

class Backend {
  static const String API_ENDPOINT = Helpers.WEB2_ENDPOINT;

  static List<GameData> Games = [
    GameData(0, "mhunt", "Metahunt", "High-Stake Battle Royale game with Play to earn abilities", "images/mhunt_thumbnail.png", true, "METAHUNT.exe"),
    GameData(1, "pop3d", "Pop3D", "a game I dont know much about xD", "images/pop3d_thumbnail.png", false, "pop3d.exe"),
  ];
  static SharedPreferences? prefs;
  static Directory? docPath;

  static String Username = "";
  static String displayName = "";
  static String walletAddress = "";
  static String pubKey = "";
  static int SolBalance =0;
  static int TicketsBalance = 0;

  static Map<String, dynamic> UserJson = {'username': 'test', 'passwd': 'test123'};

  static Future<bool> Login(String username, String password) async {
    var loginResponse = null;
    init();
    try {
      loginResponse = (await http.post(Uri.parse('${API_ENDPOINT}login.php'), body: <String, String>{"username": username, "password": password}));
      Debug.LogResponse(loginResponse.body.toString(), src: '${API_ENDPOINT}login.php');

      if(loginResponse.body.toString().contains("no user")){
        return false;
      }
      try {
        Username = username;
        displayName = username;

        SetUsernamePassword(username, password);

        return true;
      } catch (e) {}
    } catch (e) {
      Debug.LogError("Error while login $e");
      return false;

    }
    return false;
  }

  static void init() async {
    prefs = await SharedPreferences.getInstance();
    docPath = await getDownloadsDirectory();
  }

  static Future<bool> Register(String username, String password, String displayname) async {
    var loginResponse = null;
    init();

    try {
      loginResponse = (await http.post(Uri.parse('${API_ENDPOINT}register.php'), body: <String, String>{"username": username, "password": password, "display_name": displayname}));
      Debug.LogResponse(loginResponse.body.toString(), src: '${API_ENDPOINT}register.php');

      try {
        SetUsernamePassword(username, password);
        Username = username;
        Debug.Log("User is " + username);
        displayName = displayname;
        return true;
      } catch (e) {}
    } catch (e) {
      Debug.LogError("Error while login $e");
    }

    return false;
  }

  static Future<String> GetPubkey() async{
    String url ='${API_ENDPOINT}get_wallet.php?username=${Username}';
    var response = await http.get(Uri.parse(url));
    Debug.LogResponse(response.body.toString(), src: url);
    pubKey = jsonDecode(response.body.toString())["pub_key"];
    return pubKey;
  }

  static Future GetWalletBalance() async{
    SolBalance = await GetSolBalance();
    TicketsBalance = await GetTicketsBalance();
  }

  static Future<int> GetSolBalance() async{
    String url ='${API_ENDPOINT}get_wallet_balance.php?wallet=${pubKey}';
    var response = await http.get(Uri.parse(url));
    Debug.LogResponse(response.body.toString(), src: url);
    return jsonDecode(response.body.toString())["balance"];
  }

  static Future<int> GetTicketsBalance() async{
    String url ='${API_ENDPOINT}get_tickets_balance.php?wallet=${pubKey}';
    var response = await http.get(Uri.parse(url));
    Debug.LogResponse(response.body.toString(), src: url);
    return jsonDecode(response.body.toString())["balance"];
  }

  static void SetUsernamePassword(String username, String passwd) {
    UserJson = {'username': username, 'passwd': passwd};
  }

  static Future<List<LeaderboardEntry>> GetLeaderboard(String gameCode) async {
    String url = '${API_ENDPOINT}/${gameCode}/get_leaderboard.php';
    var leaderboardResponse = await http.get(Uri.parse(url));

    return LeaderboardEntry.listFromJson(leaderboardResponse.body);
  }

  static Future<List<Map<String, dynamic>>> GetNewsForGame(int gameId) async {
    String url = '${API_ENDPOINT}${Games[gameId].code}/get_news.php';
    try {
      var res = await http.get(Uri.parse(url));
      List<dynamic> jsonList = jsonDecode(res.body);
      List<Map<String, dynamic>> output = [];
      jsonList.forEach((element) {
        output.add(element as Map<String, dynamic>);
      });

      return output;
    } catch (e) {
      Debug.LogError(e);
    }

    return [{}];
  }

  static Future<Map<String, dynamic>> GetUserStatsForGame(int gameId) async {
    var loginResponse = null;
    init();

    try {
      String url = '${API_ENDPOINT}${Games[gameId].code}/get_user_stats.php';
      loginResponse = (await http.post(Uri.parse(url), body: <String, String>{"username": Username ?? "test"}));
      Debug.LogResponse(loginResponse.body.toString(), src: url);

      return jsonDecode(loginResponse.body);
    } catch (e) {
      Debug.LogError("Error while login $e");
    }

    return {};
  }

  static Future<String> CreateRequest() async {
    var loginResponse = null;

    try {
      String url = '${API_ENDPOINT}create_request.php';
      loginResponse = await http.get(Uri.parse(url));
      Debug.LogResponse(loginResponse.body.toString(), src: url);

      return loginResponse.body.toString();
    } catch (e) {
      Debug.LogError("Error while login $e");
    }

    return "-1";
  }

  static Future<String> GetRequestResponse(String id) async {
    var loginResponse = null;

    try {
      String url = '${API_ENDPOINT}get_request_response.php';
      loginResponse = (await http.post(Uri.parse(url), body: <String, String>{"id": id.toString()}));
      Debug.LogResponse(loginResponse.body.toString(), src: url);

      return loginResponse.body;
    } catch (e) {
      Debug.LogError("Error while login $e");
    }

    return "-1";
  }

  static Future<String> GetDisplayName(String id) async {
    var response = null;

    try {
      String url = '${API_ENDPOINT}get_display_name.php';
      response = (await http.post(Uri.parse(url), body: <String, String>{"id": id.toString()}));
      Debug.LogResponse(response.body.toString(), src: url);

      return response.body;
    } catch (e) {
      Debug.LogError("Error while login $e");
    }

    return "-1";
  }

  static Future<bool> GetUsernameValidation(String username) async {
    var loginResponse = null;

    try {
      String url = '${API_ENDPOINT}validate_username.php';
      loginResponse = (await http.post(Uri.parse(url), body: <String, String>{"username": username}));
      Debug.LogResponse(loginResponse.body.toString(), src: url);

      if (loginResponse.body == "0") {
        return true;
      } else {
        return false;
      }
    } catch (e) {
      Debug.LogError("Error while login $e");
    }

    return false;
  }

  static Future<String> GetNextGuestUsername() async{
    try{
      String url = '${API_ENDPOINT}get_next_guest_username.php';
      var response = await http.get(Uri.parse(url));

      return response.body.toString();
    }catch(e){

    }
    Random random = new Random();
    return 'guest ${random.nextInt(10000000)}';
  }

  static VaultData vault = VaultData('0x0', 0, 0);

  static Future<VaultData> RefreshVaultData() async{
    var response = null;
    try{
      String url = '${API_ENDPOINT}get_vault_data.php';
      response = (await http.post(Uri.parse(url), body: <String,String>{"id": Username}));
      Debug.LogResponse(response.body.toString(), src:url);

      vault = jsonDecode(response.body.toString());
    }catch(e){

    }

    return vault;
  }
}

class GameData {
  int id;
  String code;
  String name;
  String description;
  String imagePath;
  bool isAvailable;
  String exeName;

  GameData(this.id, this.code, this.name, this.description, this.imagePath, this.isAvailable, this.exeName);
}

class VaultData{
  String address;
  int vc;
  int php;

  VaultData(this.address, this.vc, this.php);
}