优化

app/src/main/java/io/legado/app/model/CacheBook.kt

@@ -15,8 +15,11 @@ import io.legado.app.service.CacheBookService
 import io.legado.app.utils.postEvent
 
 import io.legado.app.utils.startService
+import io.legado.app.utils.toastOnUi
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.delay
+import kotlinx.coroutines.runBlocking
+import splitties.init.appCtx
 
 import java.util.concurrent.ConcurrentHashMap
 import kotlin.coroutines.CoroutineContext
@@ -173,6 +176,18 @@ object CacheBook {
                 }
             }
             postEvent(EventBus.UP_DOWNLOAD, book.bookUrl)
+            val chapterCount = appDb.bookChapterDao.getChapterCount(book.bookUrl)
+            if (chapterCount == 0) {
+                runBlocking {
+                    WebBook.getChapterListAwait(this, bookSource, book)
+                        .onFailure {
+                            AppLog.put("缓存书籍没有目录且加载目录失败\n${it.localizedMessage}", it)
+                            appCtx.toastOnUi("缓存书籍没有目录且加载目录失败\n${it.localizedMessage}")
+                        }.getOrNull()
+                }?.let { toc ->
+                    appDb.bookChapterDao.insert(*toc.toTypedArray())
+                }
+            }
         }
 
         @Synchronized