ConfigurableExtension(PreferenceScreen) support (#163)

* initial PreferenceScreen support, works with 'NeoXXX Scans' (pt-br)

* convert EditTextPreference to json successfully

* commit what I've got

* bring back the old SharedPreferences for CustomContext, implement Toast

* put back syer's implementation

server/src/main/kotlin/suwayomi/tachidesk/manga/TachideskAPI.kt

@@ -30,6 +30,7 @@ import suwayomi.tachidesk.manga.impl.Search.sourceGlobalSearch
 import suwayomi.tachidesk.manga.impl.Search.sourceSearch
 import suwayomi.tachidesk.manga.impl.Source.getSource
 import suwayomi.tachidesk.manga.impl.Source.getSourceList
+import suwayomi.tachidesk.manga.impl.Source.getSourcePreferences
 import suwayomi.tachidesk.manga.impl.backup.BackupFlags
 import suwayomi.tachidesk.manga.impl.backup.legacy.LegacyBackupExport.createLegacyBackup
 import suwayomi.tachidesk.manga.impl.backup.legacy.LegacyBackupImport.restoreLegacyBackup
@@ -109,6 +110,12 @@ object TachideskAPI {
             ctx.json(getSource(sourceId))
         }
 
+        // fetch preferences of source with id `sourceId`
+        app.get("/api/v1/source/:sourceId/preference-screen") { ctx ->
+            val sourceId = ctx.pathParam("sourceId").toLong()
+            ctx.json(getSourcePreferences(sourceId))
+        }
+
         // popular mangas from source with id `sourceId`
         app.get("/api/v1/source/:sourceId/popular/:pageNum") { ctx ->
             val sourceId = ctx.pathParam("sourceId").toLong()

server/src/main/kotlin/suwayomi/tachidesk/manga/impl/Source.kt

@@ -7,15 +7,21 @@ package suwayomi.tachidesk.manga.impl
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
+import androidx.preference.PreferenceScreen
+import eu.kanade.tachiyomi.source.ConfigurableSource
 import mu.KotlinLogging
 import org.jetbrains.exposed.sql.select
 import org.jetbrains.exposed.sql.selectAll
 import org.jetbrains.exposed.sql.transactions.transaction
+import org.kodein.di.DI
+import org.kodein.di.conf.global
+import org.kodein.di.instance
 import suwayomi.tachidesk.manga.impl.extension.Extension.getExtensionIconUrl
 import suwayomi.tachidesk.manga.impl.util.GetHttpSource.getHttpSource
 import suwayomi.tachidesk.manga.model.dataclass.SourceDataClass
 import suwayomi.tachidesk.manga.model.table.ExtensionTable
 import suwayomi.tachidesk.manga.model.table.SourceTable
+import xyz.nulldev.androidcompat.androidimpl.CustomContext
 
 object Source {
     private val logger = KotlinLogging.logger {}
@@ -28,7 +34,8 @@ object Source {
                     it[SourceTable.name],
                     it[SourceTable.lang],
                     getExtensionIconUrl(ExtensionTable.select { ExtensionTable.id eq it[SourceTable.extension] }.first()[ExtensionTable.apkName]),
-                    getHttpSource(it[SourceTable.id].value).supportsLatest
+                    getHttpSource(it[SourceTable.id].value).supportsLatest,
+                    getHttpSource(it[SourceTable.id].value) is ConfigurableSource
                 )
             }
         }
@@ -43,8 +50,36 @@ object Source {
                 source?.get(SourceTable.name),
                 source?.get(SourceTable.lang),
                 source?.let { ExtensionTable.select { ExtensionTable.id eq source[SourceTable.extension] }.first()[ExtensionTable.iconUrl] },
-                source?.let { getHttpSource(sourceId).supportsLatest }
+                source?.let { getHttpSource(sourceId).supportsLatest },
+                source?.let { getHttpSource(sourceId) is ConfigurableSource },
             )
         }
     }
+
+    private val context by DI.global.instance<CustomContext>()
+
+    data class PreferenceObject(
+        val type: String,
+        val props: Any
+    )
+
+    var lastPreferenceScreen: PreferenceScreen? = null
+
+    fun getSourcePreferences(sourceId: Long): List<PreferenceObject> {
+        val source = getHttpSource(sourceId)
+
+        if (source is ConfigurableSource) {
+            val screen = PreferenceScreen(context)
+            lastPreferenceScreen = screen
+
+            source.setupPreferenceScreen(screen)
+
+            screen.preferences.first().callChangeListener("yo")
+
+            return screen.preferences.map {
+                PreferenceObject(it::class.java.name, it)
+            }
+        }
+        return emptyList()
+    }
 }

server/src/main/kotlin/suwayomi/tachidesk/manga/model/dataclass/SourceDataClass.kt

@@ -12,5 +12,6 @@ data class SourceDataClass(
     val name: String?,
     val lang: String?,
     val iconUrl: String?,
-    val supportsLatest: Boolean?
+    val supportsLatest: Boolean?,
+    val isConfigurable: Boolean?
 )

server/src/main/kotlin/suwayomi/tachidesk/server/JavalinSetup.kt

@@ -1,5 +1,12 @@
 package suwayomi.tachidesk.server
 
+/*
+ * Copyright (C) Contributors to the Suwayomi project
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
 import io.javalin.Javalin
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
@@ -13,13 +20,6 @@ import java.io.IOException
 import java.util.concurrent.CompletableFuture
 import kotlin.concurrent.thread
 
-/*
- * Copyright (C) Contributors to the Suwayomi project
- * 
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
-
 object JavalinSetup {
     private val logger = KotlinLogging.logger {}