优化

app/src/main/java/io/legado/app/ui/main/bookshelf/BookshelfViewModel.kt

@@ -72,6 +72,7 @@ class BookshelfViewModel(application: Application) : BaseViewModel(application)
                 bookMap["name"] = it.name
                 bookMap["author"] = it.author
                 bookMap["bookUrl"] = it.bookUrl
+                bookMap["coverUrl"] = it.coverUrl
                 bookMap["tocUrl"] = it.tocUrl
                 bookMap["kind"] = it.kind
                 bookMap["intro"] = it.getDisplayIntro()
@@ -88,16 +89,19 @@ class BookshelfViewModel(application: Application) : BaseViewModel(application)
     fun importBookshelf(str: String, groupId: Long) {
         execute {
             val text = str.trim()
-            if (text.isAbsUrl()) {
+            when {
+                text.isAbsUrl() -> {
                     RxHttp.get(text).toText().await().let {
                         importBookshelf(it, groupId)
                     }
-            } else if (text.isJsonArray()) {
+                }
+                text.isJsonArray() -> {
                     GSON.fromJsonArray<Map<String, String?>>(text)?.forEach {
                         val book = Book(
                             bookUrl = it["bookUrl"] ?: "",
                             name = it["name"] ?: "",
                             author = it["author"] ?: "",
+                            coverUrl = it["coverUrl"],
                             tocUrl = it["tocUrl"] ?: "",
                             kind = it["kind"],
                             intro = it["intro"] ?: "",
@@ -107,11 +111,15 @@ class BookshelfViewModel(application: Application) : BaseViewModel(application)
                         if (groupId > 0) {
                             book.group = groupId
                         }
+                        if (App.db.bookDao.getBook(book.name, book.author) == null) {
                             App.db.bookDao.insert(book)
                         }
-            } else {
+                    }
+                }
+                else -> {
                     throw Exception("格式不对")
                 }
+            }
         }.onError {
             toast(it.localizedMessage ?: "ERROR")
         }