Migrate extension details page to Compose

app/src/main/java/eu/kanade/domain/extension/interactor/GetExtensionSources.kt

@@ -0,0 +1,32 @@
+package eu.kanade.domain.extension.interactor
+
+import eu.kanade.tachiyomi.data.preference.PreferencesHelper
+import eu.kanade.tachiyomi.extension.model.Extension
+import eu.kanade.tachiyomi.source.Source
+import eu.kanade.tachiyomi.ui.browse.extension.details.ExtensionSourceItem
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.map
+
+class GetExtensionSources(
+    private val preferences: PreferencesHelper,
+) {
+
+    fun subscribe(extension: Extension.Installed): Flow<List<ExtensionSourceItem>> {
+        val isMultiSource = extension.sources.size > 1
+        val isMultiLangSingleSource =
+            isMultiSource && extension.sources.map { it.name }.distinct().size == 1
+
+        return preferences.disabledSources().asFlow().map { disabledSources ->
+            fun Source.isEnabled() = id.toString() !in disabledSources
+
+            extension.sources
+                .map { source ->
+                    ExtensionSourceItem(
+                        source = source,
+                        enabled = source.isEnabled(),
+                        labelAsName = isMultiSource && isMultiLangSingleSource.not(),
+                    )
+                }
+        }
+    }
+}