From dbbaee91c54ee4426c9ea58c0239d3afb5b3ba4a Mon Sep 17 00:00:00 2001
From: Paul Woitaschek <woitaschek@gmail.com>
Date: Fri, 10 Mar 2023 22:32:28 +0100
Subject: [PATCH] Synchronize the book updating.

---
 .idea/.gitignore                                     |  1 +
 .../main/kotlin/voice/data/repo/BookRepository.kt    | 12 +++++++-----
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/.idea/.gitignore b/.idea/.gitignore
index 6f05d8501f..308f293fce 100644
--- a/.idea/.gitignore
+++ b/.idea/.gitignore
@@ -13,3 +13,4 @@ kotlinScripting.xml
 /deploymentTargetDropDown.xml
 /.name
 /kotlinc.xml
+/modules.xml
diff --git a/data/src/main/kotlin/voice/data/repo/BookRepository.kt b/data/src/main/kotlin/voice/data/repo/BookRepository.kt
index 467366d8ef..3527fbcd3c 100644
--- a/data/src/main/kotlin/voice/data/repo/BookRepository.kt
+++ b/data/src/main/kotlin/voice/data/repo/BookRepository.kt
@@ -19,11 +19,11 @@ class BookRepository
 ) {
 
   private var warmedUp = false
-  private val warmupMutex = Mutex()
+  private val mutex = Mutex()
 
   private suspend fun warmUp() {
     if (warmedUp) return
-    warmupMutex.withLock {
+    mutex.withLock {
       if (warmedUp) return@withLock
       val chapters = contentRepo.all()
         .filter { it.isActive }
@@ -59,9 +59,11 @@ class BookRepository
   }
 
   suspend fun updateBook(id: BookId, update: (BookContent) -> BookContent) {
-    val content = contentRepo.get(id) ?: return
-    val updated = update(content)
-    contentRepo.put(updated)
+    mutex.withLock {
+      val content = contentRepo.get(id) ?: return
+      val updated = update(content)
+      contentRepo.put(updated)
+    }
   }
 
   private suspend fun BookContent.book(): Book? {