Koharu: Add mirror selection to preference page (#11588)

* Add mirror pref

* Koharu: Add more mirror sites

* Koharu: Raised extVersionCode

* Koharu: Implement index fallback

* Koharu: Remove preferences migration

src/all/koharu/build.gradle

@@ -1,7 +1,7 @@
 ext {
     extName = 'SchaleNetwork'
     extClass = '.KoharuFactory'
-    extVersionCode = 15
+    extVersionCode = 16
     isNsfw = true
 }
 

src/all/koharu/src/eu/kanade/tachiyomi/extension/all/koharu/Koharu.kt

@@ -7,6 +7,7 @@ import android.os.Handler
 import android.os.Looper
 import android.webkit.WebView
 import android.webkit.WebViewClient
+import android.widget.Toast
 import androidx.preference.EditTextPreference
 import androidx.preference.ListPreference
 import androidx.preference.PreferenceScreen
@@ -57,9 +58,19 @@ class Koharu(
     private val searchLang: String = "",
 ) : HttpSource(), ConfigurableSource {
 
+    private val preferences: SharedPreferences by getPreferencesLazy()
+
     override val name = "SchaleNetwork"
 
-    override val baseUrl = "https://schale.network"
+    override val baseUrl: String
+        get() {
+            val preferenceValue = preferences.getString(PREF_MIRROR, MIRROR_PREF_DEFAULT) ?: MIRROR_PREF_DEFAULT
+            val mirror = preferenceValue.toIntOrNull()?.let { index ->
+                mirrors[index.coerceAtMost(mirrors.lastIndex)]
+            } ?: preferenceValue.takeIf { it in mirrors } ?: MIRROR_PREF_DEFAULT
+
+            return "https://$mirror"
+        }
 
     override val id = if (lang == "en") 1484902275639232927 else super.id
 
@@ -74,8 +85,6 @@ class Koharu(
     private val shortenTitleRegex = Regex("""(\[[^]]*]|[({][^)}]*[)}])""")
     private fun String.shortenTitle() = replace(shortenTitleRegex, "").trim()
 
-    private val preferences: SharedPreferences by getPreferencesLazy()
-
     private fun quality() = preferences.getString(PREF_IMAGERES, "1280")!!
 
     private fun remadd() = preferences.getBoolean(PREF_REM_ADD, false)
@@ -457,6 +466,20 @@ class Koharu(
     // Settings
 
     override fun setupPreferenceScreen(screen: PreferenceScreen) {
+        ListPreference(screen.context).apply {
+            key = PREF_MIRROR
+            title = "Preferred Mirror"
+            entries = mirrors
+            entryValues = mirrors
+            setDefaultValue(MIRROR_PREF_DEFAULT)
+            summary = "%s"
+
+            setOnPreferenceChangeListener { _, _ ->
+                Toast.makeText(screen.context, "Restart the app to apply changes", Toast.LENGTH_LONG).show()
+                true
+            }
+        }.also(screen::addPreference)
+
         ListPreference(screen.context).apply {
             key = PREF_IMAGERES
             title = "Image Resolution"
@@ -488,6 +511,16 @@ class Koharu(
 
     companion object {
         const val PREFIX_ID_KEY_SEARCH = "id:"
+        private const val PREF_MIRROR = "pref_mirror"
+        private const val MIRROR_PREF_DEFAULT = "schale.network"
+        private val mirrors = arrayOf(
+            MIRROR_PREF_DEFAULT,
+            "anchira.to",
+            "gehenna.jp",
+            "niyaniya.moe",
+            "shupogaki.moe",
+            "hdoujin.net",
+        )
         private const val PREF_IMAGERES = "pref_image_quality"
         private const val PREF_REM_ADD = "pref_remove_additional"
         private const val PREF_EXCLUDE_TAGS = "pref_exclude_tags"