Invalidate DiskLruCache if broken

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(
+	private val lruCache = createDiskLruCacheSafe(
-		cacheDir.subdir(CacheDir.PAGES.dir),
+		dir = cacheDir.subdir(CacheDir.PAGES.dir),
-		FileSize.MEGABYTES.convert(200, FileSize.BYTES),
+		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)
+	}
 }