phanipavank/IIITB_Menu
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Changed data loading strategy

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This commit is contained in:
Phani Pavan K
2023-09-02 16:50:02 +05:30
parent 23dd888424
commit aa68bd70eb
7 changed files with 113 additions and 75 deletions
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17
.github/workflows/gh-pages.yml vendored
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@@ -25,6 +25,23 @@ jobs:
- name: Checkout code
uses: actions/checkout@v3.6.0
- name: Setup Python
uses: actions/setup-python@v4.7.0
with:
python-version: "3.11"
- name: Install Packages
working-directory: ./scripts
run: |
python -m pip install --upgrade pip
pip install -r requirements.txt
- name: Compile Menu
working-directory: ./scripts
run: python scrapeToJson.py
- name: Copy Data File
run: cp ./scripts/data.dart ./lib/data.dart
# - name: Cache Flutter dependencies
# uses: actions/cache@v1
# with:

6
lib/constants.dart
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@@ -14,3 +14,9 @@ const String storageKey = "FullMenu";
const Center noMenuWidget = Center(
child: Text("Menu not available for this session",
style: TextStyle(fontSize: 20, fontStyle: FontStyle.italic)));
const String hashLink =
"http://github.com/kphanipavan/IIITB_Menu/releases/download/latest/out.txt";
const String dataLink =
"http://github.com/kphanipavan/IIITB_Menu/releases/download/latest/out.json";

1
lib/data.dart Normal file
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File diff suppressed because one or more lines are too long

138
lib/models/globalModel.dart
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@@ -1,15 +1,17 @@
// ignore_for_file: unnecessary_this, file_names
import "dart:convert";
import "dart:io";
// 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:crypto/crypto.dart";
// import "package:http/http.dart";
import "package:intl/intl.dart";
import "package:shared_preferences/shared_preferences.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;
@@ -29,76 +31,88 @@ class GlobalModel extends ChangeNotifier {
});
}
static Future<String> getLatestHash() async {
const String hashLink = "https://github.com/kphanipavan/IIITB_Menu/releases/download/latest/out.txt";
try {
Response ret = await get(Uri.parse(hashLink));
if (ret.statusCode == 200) {
return ret.body.replaceAll("\n", "");
} else {
return "";
}
} on SocketException catch (exce) {
print("Unable to download hash");
print(exce);
return "";
}
}
// 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 {
const String dataLink = "https://github.com/kphanipavan/IIITB_Menu/releases/download/latest/out.json";
try {
Response ret = await get(Uri.parse(dataLink));
return ret.body;
} on SocketException catch (exce) {
print("Unable to download any data");
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;
// 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(storageKey);
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: ");
// rawData = prefs.getString("asdasdasd");
// print(rawData);
returnData = jsonDecode(rawData);
// menuAvailable = true;
} else {
print("File Not Found");
returnData = {};
rawHash = "";
}
String remoteHash = await GlobalModel.getLatestHash();
if (remoteHash == "") {
} else if (remoteHash == rawHash) {
// 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 {
// } 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);
}
// 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;
}

2
macos/Flutter/GeneratedPluginRegistrant.swift
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@@ -6,9 +6,7 @@ import FlutterMacOS
import Foundation
import path_provider_foundation
import shared_preferences_foundation
func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
PathProviderPlugin.register(with: registry.registrar(forPlugin: "PathProviderPlugin"))
SharedPreferencesPlugin.register(with: registry.registrar(forPlugin: "SharedPreferencesPlugin"))
}

7
pubspec.yaml
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@@ -36,12 +36,13 @@ dependencies:
# Use with the CupertinoIcons class for iOS style icons.
cupertino_icons: ^1.0.2
provider: ^6.0.5
crypto: ^3.0.3
# crypto: ^3.0.3
intl: ^0.18.1
http: ^1.1.0
# http: ^1.1.0
# dio: ^5.3.2
path_provider:
# localstorage: ^4.0.1+4
shared_preferences: ^2.2.0
# shared_preferences: ^2.2.0
# sembast:
dev_dependencies:

9
scripts/scrapeToJson.py
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@@ -71,7 +71,8 @@ if __name__ == "__main__":
# print()
finalData["menu"][dayNumber] = currentMenu
# print(finalData)
with open("out.json", "w+") as jsonWriter:
json.dump(finalData, jsonWriter)
with open("out.txt", "w+") as hashWriter:
hashWriter.write(hashlib.md5(json.dumps(finalData).encode("utf-8")).hexdigest())
with open("data.dart", "w+") as dataWriter:
allData = "String data = r'" + json.dumps(finalData) + "';"
dataWriter.write(allData)
# with open("out.txt", "w+") as hashWriter:
# hashWriter.write(hashlib.md5(json.dumps(finalData).encode("utf-8")).hexdigest())