V0.5.0

lib/src/command/create_command.dart

@@ -4,6 +4,10 @@ import '../structure_creators/file/impl_file_creator.dart';
 import 'i_command.dart';
 
 class CreateCommand implements ICommand {
+  final ICommand? nextCommand;
+
+  CreateCommand({this.nextCommand});
+
   @override
   Future<void> execute() async {
     final directoryCreator = ImplDirectoryCreator();
@@ -14,6 +18,8 @@ class CreateCommand implements ICommand {
       fileCreator: fileCreator,
     );
 
+    // await nextCommand?.execute();
+
     return kanzaCreator.create();
   }
 }

lib/src/command/help_command.dart

@@ -7,6 +7,12 @@ class HelpCommand implements ICommand {
   void execute() {
     stdout.writeln('Usage: kanza_cli <command>\n');
 
+    stdout.writeln('Global options:');
+     stdout.writeln(
+      '--get-packages        Get some packages with latest releases '
+      'from pub.dev\n',
+    );
+
     stdout.writeln('Available commands:');
     stdout.writeln(
       'create        Create folder and file structure for Fluter Apps',

lib/src/command/pub_updater_command.dart

@@ -0,0 +1,12 @@
+import 'dart:async';
+import 'i_command.dart';
+
+import '../structure_creators/pubspec/impl_pubspec_creator.dart';
+
+class PubUpdaterCommand implements ICommand {
+  @override
+  Future<void> execute() {
+    ImplPubspecCreator pubspecCreator = ImplPubspecCreator();
+    return pubspecCreator.getPackageVersion();
+  }
+}

lib/src/constants/constants_data.dart

@@ -0,0 +1,6 @@
+const List<String> kPubPackageList = [
+  'shared_preferences',
+  'flutter_bloc',
+  'intl',
+  'injectable',
+];

lib/src/kanza_command_runner.dart

@@ -5,25 +5,41 @@ import 'package:args/args.dart';
 import 'command/create_command.dart';
 import 'command/help_command.dart';
 import 'command/i_command.dart';
+import 'command/pub_updater_command.dart';
 
 class KanzaCommandRunner {
   void run(List<String> arguments) {
     final argParser = ArgParser();
 
     argParser.addCommand('create');
     argParser.addCommand('help');
+    argParser.addFlag('get-packages');
 
-    final res = argParser.parse(arguments);
+    final ArgResults argResult;
 
-    if (res.command != null && res.command!.name != null) {
+    try {
+      argResult = argParser.parse(arguments);
+    } catch (_) {
+      stderr.writeln('No command or flag available!\n');
+      HelpCommand().execute();
+      exit(2);
+    }
+
+    if (argResult.command != null && argResult.command!.name != null) {
       ICommand? command;
 
-      switch (res.command!.name) {
+      switch (argResult.command!.name) {
         case 'create':
           final res = welcomeBoard();
 
           if (res) {
-            command = CreateCommand();
+            bool isNeedPubUpdate = argResult['get-packages'];
+
+            print('isNeedPubUpdate: $isNeedPubUpdate');
+
+            command = CreateCommand(
+              nextCommand: isNeedPubUpdate ? PubUpdaterCommand() : null,
+            );
           } else {
             exit(0);
           }
@@ -32,7 +48,7 @@ class KanzaCommandRunner {
           command = HelpCommand();
           break;
         default:
-          _errorAndExit(res.command!.name);
+          _errorAndExit(argResult.command!.name);
       }
 
       command!.execute();

lib/src/model/package_detail.dart

@@ -0,0 +1,27 @@
+class PackageDetail {
+  late String name;
+  late Latest latest;
+
+  PackageDetail.fromJson(Map<String, dynamic> json) {
+    name = json['name'];
+    latest = Latest.fromJson(json['latest']);
+  }
+
+  @override
+  String toString() {
+    return '$name: ${latest.version}';
+  }
+}
+
+class Latest {
+  late String version;
+
+  Latest.fromJson(Map<String, dynamic> json) {
+    version = json['version'];
+  }
+
+  @override
+  String toString() {
+    return version;
+  }
+}

lib/src/services/package_detail_service.dart

@@ -0,0 +1,44 @@
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:http/http.dart' as http;
+
+import '../model/package_detail.dart';
+
+class PackageDetailService {
+  final String _pubBaseUrl = 'https://pub.dev/api/';
+  static PackageDetailService? _packageDetailService;
+  static http.Client? client;
+
+  PackageDetailService._createInstance();
+
+  factory PackageDetailService() {
+    if (_packageDetailService == null) {
+      _packageDetailService = PackageDetailService._createInstance();
+      client = http.Client();
+    }
+    return _packageDetailService!;
+  }
+
+  Future<PackageDetail?> getPackageDetail({required String packageName}) async {
+    try {
+      http.Response response = await client!.get(
+        Uri.parse('${_pubBaseUrl}packages/$packageName'),
+      );
+
+      if (response.statusCode == 200) {
+        PackageDetail model = PackageDetail.fromJson(
+          json.decode(utf8.decode(response.bodyBytes)),
+        );
+
+        return model;
+      } else {
+        stderr.write('${response.statusCode}->${response.body}');
+        return null;
+      }
+    } catch (e) {
+      stderr.write(e);
+      return null;
+    }
+  }
+}

lib/src/structure_creators/i_creators.dart

@@ -17,3 +17,7 @@ abstract class IDirectoryCreator {
 abstract class IFileCreator {
   Future<void> createNecessaryFiles();
 }
+
+abstract class IPubspecCreator {
+  Future<void> getPackageVersion();
+}

lib/src/structure_creators/pubspec/impl_pubspec_creator.dart

@@ -0,0 +1,21 @@
+import '../../constants/constants_data.dart';
+import '../../services/package_detail_service.dart';
+import '../../model/package_detail.dart';
+import '../i_creators.dart';
+
+class ImplPubspecCreator implements IPubspecCreator {
+  @override
+  Future<void> getPackageVersion() async {
+    List<String> solvedPackageList = [];
+    for (String package in kPubPackageList) {
+      PackageDetail? data = await PackageDetailService().getPackageDetail(
+        packageName: package,
+      );
+
+      if (data != null) {
+        solvedPackageList.add(data.toString());
+        print(data.toString());
+      }
+    }
+  }
+}

lib/src/utils/yaml_map_converter.dart

@@ -0,0 +1,25 @@
+import 'package:yaml/yaml.dart';
+
+extension YamlMapConverter on YamlMap {
+  dynamic _convertNode(dynamic v) {
+    if (v is YamlMap) {
+      return (v).toMap();
+    } else if (v is YamlList) {
+      var list = <dynamic>[];
+      for (var e in v) {
+        list.add(_convertNode(e));
+      }
+      return list;
+    } else {
+      return v;
+    }
+  }
+
+  Map<String, dynamic> toMap() {
+    var map = <String, dynamic>{};
+    nodes.forEach((k, v) {
+      map[(k as YamlScalar).value.toString()] = _convertNode(v.value);
+    });
+    return map;
+  }
+}

lib/src/utils/yaml_writer.dart

@@ -0,0 +1,65 @@
+class YamlWriter {
+  /// The amount of spaces for each level.
+  final int spaces;
+
+  /// Initialize the writer with the amount of [spaces] per level.
+  YamlWriter({
+    this.spaces = 2,
+  });
+
+  /// Write a dart structure to a YAML string. [yaml] should be a [Map] or [List].
+  String write(dynamic yaml) {
+    return _writeInternal(yaml).trim();
+  }
+
+  /// Write a dart structure to a YAML string. [yaml] should be a [Map] or [List].
+  String _writeInternal(dynamic yaml, {int indent = 0}) {
+    String str = '';
+
+    if (yaml is List) {
+      str += _writeList(yaml, indent: indent);
+    } else if (yaml is Map) {
+      str += _writeMap(yaml, indent: indent);
+    } else if (yaml is String) {
+      str += "\"${yaml.replaceAll("\"", "\\\"")}\"";
+    } else {
+      str += yaml.toString();
+    }
+
+    return str;
+  }
+
+  /// Write a list to a YAML string.
+  /// Pass the list in as [yaml] and indent it to the [indent] level.
+  String _writeList(List yaml, {int indent = 0}) {
+    String str = '\n';
+
+    for (var item in yaml) {
+      str +=
+          "${_indent(indent)}- ${_writeInternal(item, indent: indent + 1)}\n";
+    }
+
+    return str;
+  }
+
+  /// Write a map to a YAML string.
+  /// Pass the map in as [yaml] and indent it to the [indent] level.
+  String _writeMap(Map yaml, {int indent = 0}) {
+    String str = '\n';
+
+    for (var key in yaml.keys) {
+      var value = yaml[key];
+      str +=
+          "${_indent(indent)}${key.toString()}: ${_writeInternal(value, indent: indent + 1)}\n";
+    }
+
+    return str;
+  }
+
+  /// Create an indented string for the level with the spaces config.
+  /// [indent] is the level of indent whereas [spaces] is the
+  /// amount of spaces that the string should be indented by.
+  String _indent(int indent) {
+    return ''.padLeft(indent * spaces, ' ');
+  }
+}

pubspec.lock

@@ -8,12 +8,96 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.3.0"
+  async:
+    dependency: transitive
+    description:
+      name: async
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.8.2"
+  charcode:
+    dependency: transitive
+    description:
+      name: charcode
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.3.1"
+  collection:
+    dependency: transitive
+    description:
+      name: collection
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.15.0"
+  http:
+    dependency: "direct main"
+    description:
+      name: http
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.13.4"
+  http_parser:
+    dependency: transitive
+    description:
+      name: http_parser
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.0.0"
   lints:
     dependency: "direct dev"
     description:
       name: lints
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.1"
+  meta:
+    dependency: transitive
+    description:
+      name: meta
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.7.0"
+  path:
+    dependency: transitive
+    description:
+      name: path
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.8.0"
+  source_span:
+    dependency: transitive
+    description:
+      name: source_span
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.8.1"
+  string_scanner:
+    dependency: transitive
+    description:
+      name: string_scanner
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
+  term_glyph:
+    dependency: transitive
+    description:
+      name: term_glyph
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.0"
+  typed_data:
+    dependency: transitive
+    description:
+      name: typed_data
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.3.0"
+  yaml:
+    dependency: "direct main"
+    description:
+      name: yaml
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.1.0"
 sdks:
   dart: ">=2.14.2 <3.0.0"