IIITB_Menu/lib/models/globalModel.dart

// ignore_for_file: unnecessary_this, file_names

import "dart:convert";
// import "dart:io";
import "package:iiitb_menu/constants.dart";
// import "package:path_provider/path_provider.dart";
// import 'dart:io';
import "package:flutter/material.dart";
// import "package:crypto/crypto.dart";
// import "package:http/http.dart";
import "package:intl/intl.dart";
// import "package:shared_preferences/shared_preferences.dart";
// import "package:dio/dio.dart";
import "package:iiitb_menu/data.dart" as menuData;

class GlobalModel extends ChangeNotifier {
  late Map<dynamic, dynamic> mainData;
  DateTime currentDate = DateTime.now();
  String menuTime = breakfast;
  bool menuAvailable = false;

  GlobalModel() {
    print("In constructor");
    GlobalModel.loadData().then((value) {
      mainData = value;
      if (this.mainData["dates"].keys.contains(this.date)) {
        this.menuAvailable = true;
      }
      // print(mainData);
      notifyListeners();
    });
  }

//   static Future<String> getLatestHash() async {
//     try {
// // Request hashRequest = Request("get", Uri.parse(hashLink));
//       Response ret = await Dio().request(hashLink,
//           options: Options(method: 'GET', headers: {
//             HttpHeaders.acceptHeader: "text/plain",
//             "Access-Control-Allow-Origin": "*",
//             "Access-Control-Allow-Methods": "GET",
//             "Access-Control-Allow-Headers": "*",
//             "Access-Control-Max-Age": "1000"
//           }));
//       if (ret.statusCode == 200) {
//         return ret.data.replaceAll("\n", "");
//       } else {
//         return "";
//       }
//     } on SocketException catch (exce) {
//       print("Unable to download hash");
//       print(exce);
//       return "";
//     }
//   }

  // static Future<String> getLatestData() async {
  //   try {
  //     Response ret = await Dio().request(dataLink,
  //         options: Options(method: "GET", headers: {
  //           HttpHeaders.acceptHeader: "text/plain",
  //           "Access-Control-Allow-Origin": "*"
  //         }));
  //     return ret.data;
  //   } on SocketException catch (exce) {
  //     print("Unable to download any data");
  //     print(exce);
  //     return "";
  //   }
  // }

  static Future<Map> loadData() async {
    late Map returnData;
    // Directory appDir = await getApplicationDocumentsDirectory();
    // final SharedPreferences prefs = await SharedPreferences.getInstance();
    // String? rawData;
    // String rawHash;
    // String fileName = "${appDir.path}/menu.json";
    // print(fileName);
    // File fileLink = File(fileName);
    // rawData = prefs.getString("asdasdasd");
    // print(rawData);
    // if (rawData != null) {
    //   print("data found");
    //   // rawData = localStor.getItem("fullMenu");
    //   rawHash = md5.convert(utf8.encode(rawData)).toString();
    //   print("Hash of Raw Data:");
    //   print(rawHash);
    //   // print("RawData: ");
    //   // print(rawData);
    //   returnData = jsonDecode(rawData);
    //   // menuAvailable = true;
    // } else {
    //   print("Data Not Found");
    //   returnData = {};
    //   rawHash = "";
    // }
    // // String remoteHash = await GlobalModel.getLatestHash();
    // String remoteHash = "asd";
    // print("Remote Hash: $remoteHash");
    // if (remoteHash == "") {
    // } else if (remoteHash == rawHash) {
    //   print("Remote hash $remoteHash is same as local hash $rawHash");
    // } else {
    //   print("Remote hash $remoteHash is NOT the same as local hash $rawHash");
    //   print("Getting data from remote");
    //   rawData = await getLatestData();
    //   if (rawData == "") {
    //     return {};
    //   }
    //   returnData = jsonDecode(rawData);
    //   // fileLink.writeAsStringSync(rawData, mode: FileMode.write);
    //   prefs.setString(storageKey, rawData);
    // }
    returnData = jsonDecode(menuData.data);
    return returnData;
  }

  String get date {
    return DateFormat("dd-MM-yyyy").format(this.currentDate);
  }

  void incrDate() {
    this.currentDate = this.currentDate.add(const Duration(days: 1));
    this.isMenuAvailable();
    notifyListeners();
  }

  void decrDate() {
    this.currentDate = this.currentDate.add(const Duration(days: -1));
    this.isMenuAvailable();
    notifyListeners();
  }

  void setMenuTime(int time) {
    switch (time) {
      case 0:
        this.menuTime = breakfast;
        notifyListeners();
        break;
      case 1:
        this.menuTime = lunch;
        notifyListeners();
        break;
      case 2:
        this.menuTime = snak;
        notifyListeners();
        break;
      case 3:
        this.menuTime = dinner;
        notifyListeners();
        break;
      default:
    }
  }

  void isMenuAvailable() {
    if (this.mainData["dates"].keys.contains(this.date)) {
      this.menuAvailable = true;
    } else {
      this.menuAvailable = false;
    }
  }

  void setDateToToday() {
    this.currentDate = DateTime.now();
    this.isMenuAvailable();
    notifyListeners();
  }
}