feat: theme history UI (#4)

* feat: gallery and app bar UI fixes
* feat: theme history ui
* feat: history integration + home ui fixes

gdsc_art/lib/Model/history_model.dart

@@ -0,0 +1,75 @@
+class HistoryModel {
+  final String src;
+  final Artist artist;
+  final Art art;
+  final String id;
+
+  HistoryModel({
+    required this.src,
+    required this.artist,
+    required this.art,
+    required this.id,
+  });
+
+  factory HistoryModel.fromJson(Map<String, dynamic> json) {
+    return HistoryModel(
+      src: json['src'],
+      artist: Artist.fromJson(json['artist']),
+      art: Art.fromJson(json['art']),
+      id: json['_id'],
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'src': src,
+      'artist': artist.toJson(),
+      'art': art.toJson(),
+      '_id': id,
+    };
+  }
+}
+
+class Artist {
+  final String name;
+  final String period;
+
+  Artist({
+    required this.name,
+    required this.period,
+  });
+
+  factory Artist.fromJson(Map<String, dynamic> json) {
+    return Artist(
+      name: json['name'],
+      period: json['period'],
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'name': name,
+      'period': period,
+    };
+  }
+}
+
+class Art {
+  final String year;
+
+  Art({
+    required this.year,
+  });
+
+  factory Art.fromJson(Map<String, dynamic> json) {
+    return Art(
+      year: json['year'],
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'year': year,
+    };
+  }
+}

gdsc_art/lib/Model/theme_model.dart

@@ -1,3 +1,5 @@
+import 'package:gdsc_artwork/Model/history_model.dart';
+
 class ThemeModel {
   final String id;
   final String title;
@@ -8,6 +10,7 @@ class ThemeModel {
   final String workTitle;
   final List<String> workImages;
   final String workDescription;
+  final List<HistoryModel> history;
 
   ThemeModel({
     required this.id,
@@ -19,6 +22,7 @@ class ThemeModel {
     required this.workTitle,
     required this.workImages,
     required this.workDescription,
+    required this.history,
   });
 
   factory ThemeModel.fromJson(Map<String, dynamic> json) {
@@ -32,6 +36,9 @@ class ThemeModel {
       workTitle: json['work_title'],
       workImages: List<String>.from(json['work_images']),
       workDescription: json['work_description'],
+      history: (json['history'] as List)
+          .map((history) => HistoryModel.fromJson(history))
+          .toList(),
     );
   }
-}
+}