Show group in last read and history when group existing. (#419)

assets/translation.json

@@ -234,6 +234,7 @@
     "Please add some sources": "请添加一些源",
     "Please check your settings": "请检查您的设置",
     "No Category Pages": "没有分类页面",
+    "Group @group": "第 @group 组",
     "Chapter @ep": "第 @ep 章",
     "Page @page": "第 @page 页",
     "Also remove files on disk": "同时删除磁盘上的文件",
@@ -633,6 +634,7 @@
     "Please add some sources": "請添加一些源",
     "Please check your settings": "請檢查您的設定",
     "No Category Pages": "沒有分類頁面",
+    "Group @group": "第 @group 組",
     "Chapter @ep": "第 @ep 章",
     "Page @page": "第 @page 頁",
     "Also remove files on disk": "同時刪除磁碟上的文件",

lib/foundation/history.dart

@@ -133,6 +133,11 @@ class History implements Comic {
   @override
   String get description {
     var res = "";
+    if (group != null){
+      res += "${"Group @group".tlParams({
+        "group": group!,
+      })} - ";
+    }
     if (ep >= 1) {
       res += "Chapter @ep".tlParams({
         "ep": ep,

lib/pages/comic_details_page/comic_page.dart

@@ -410,20 +410,26 @@ class _ComicPageState extends LoadingState<ComicPage, ComicDetails>
                       String text;
                       if (haveChapter) {
                         var epName = "E$ep";
+                        String? groupName;
                         try {
-                          epName = group == null
+                          if (group == null){
-                              ? comic.chapters!.titles.elementAt(
+                            epName = comic.chapters!.titles.elementAt(
                               math.min(ep - 1, comic.chapters!.length - 1),
-                          )
+                            );
-                              : comic.chapters!
+                          } else {
+                            groupName = comic.chapters!.groups.elementAt(group - 1);
+                            epName = comic.chapters!
                                 .getGroupByIndex(group - 1)
                                 .values
                                 .elementAt(ep - 1);
                           }
+                        }
                         catch(e) {
                           // ignore
                         }
-                        text = "${"Last Reading".tl}: $epName P$page";
+                        text = groupName == null
+                            ? "${"Last Reading".tl}: $epName P$page"
+                            : "${"Last Reading".tl}: $groupName $epName P$page";
                       } else {
                         text = "${"Last Reading".tl}: P$page";
                       }