Replace extension NSFW flag with content warning app-wide (#3951)

domain/src/main/java/eu/kanade/tachiyomi/extension/model/Extension.kt

@@ -2,6 +2,7 @@ package eu.kanade.tachiyomi.extension.model
 
 import android.graphics.drawable.Drawable
 import eu.kanade.tachiyomi.source.Source
+import mihon.domain.extension.model.ContentWarning
 import mihon.domain.extension.model.ExtensionStore
 import tachiyomi.domain.source.model.StubSource
 
@@ -13,7 +14,7 @@ sealed class Extension {
     abstract val versionCode: Long
     abstract val libVersion: Double
     abstract val lang: String?
-    abstract val isNsfw: Boolean
+    abstract val contentWarning: ContentWarning
 
     data class Installed(
         override val name: String,
@@ -22,7 +23,7 @@ sealed class Extension {
         override val versionCode: Long,
         override val libVersion: Double,
         override val lang: String,
-        override val isNsfw: Boolean,
+        override val contentWarning: ContentWarning,
         val pkgFactory: String?,
         val sources: List<Source>,
         val icon: Drawable?,
@@ -39,7 +40,7 @@ sealed class Extension {
         override val versionCode: Long,
         override val libVersion: Double,
         override val lang: String,
-        override val isNsfw: Boolean,
+        override val contentWarning: ContentWarning,
         val sources: List<Source>,
         val apkUrl: String,
         val iconUrl: String,
@@ -70,6 +71,6 @@ sealed class Extension {
         override val libVersion: Double,
         val signatureHash: String,
         override val lang: String? = null,
-        override val isNsfw: Boolean = false,
+        override val contentWarning: ContentWarning = ContentWarning.SAFE,
     ) : Extension()
 }

domain/src/main/java/mihon/domain/extension/model/ContentWarning.kt

@@ -0,0 +1,7 @@
+package mihon.domain.extension.model
+
+enum class ContentWarning {
+    SAFE,
+    MIXED,
+    NSFW,
+}