From d21dff08b8a3c06ed6fd65c28d5ac6953f897e50 Mon Sep 17 00:00:00 2001
From: Koitharu <nvasya95@gmail.com>
Date: Wed, 6 Jul 2022 11:59:52 +0300
Subject: [PATCH] Invalidate DiskLruCache if broken

---
 .../koitharu/kotatsu/local/data/PagesCache.kt    | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/app/src/main/java/org/koitharu/kotatsu/local/data/PagesCache.kt b/app/src/main/java/org/koitharu/kotatsu/local/data/PagesCache.kt
index 7aee467a5..10eeea740 100644
--- a/app/src/main/java/org/koitharu/kotatsu/local/data/PagesCache.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/local/data/PagesCache.kt
@@ -13,9 +13,9 @@ import java.io.InputStream
 class PagesCache(context: Context) {
 
 	private val cacheDir = context.externalCacheDir ?: context.cacheDir
-	private val lruCache = DiskLruCache.create(
-		cacheDir.subdir(CacheDir.PAGES.dir),
-		FileSize.MEGABYTES.convert(200, FileSize.BYTES),
+	private val lruCache = createDiskLruCacheSafe(
+		dir = cacheDir.subdir(CacheDir.PAGES.dir),
+		size = FileSize.MEGABYTES.convert(200, FileSize.BYTES),
 	)
 
 	operator fun get(url: String): File? {
@@ -60,4 +60,14 @@ class PagesCache(context: Context) {
 			progress.value = (bytesCopied.toDouble() / contentLength.toDouble()).toFloat()
 		}
 	}
+}
+
+private fun createDiskLruCacheSafe(dir: File, size: Long): DiskLruCache {
+	return try {
+		DiskLruCache.create(dir, size)
+	} catch (e: Exception) {
+		dir.deleteRecursively()
+		dir.mkdir()
+		DiskLruCache.create(dir, size)
+	}
 }
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