Add dummy manga parser for development

app/src/debug/java/org/koitharu/kotatsu/core/parser/DummyParser.kt

@@ -0,0 +1,40 @@
+package org.koitharu.kotatsu.core.parser
+
+import java.util.*
+import org.koitharu.kotatsu.parsers.MangaLoaderContext
+import org.koitharu.kotatsu.parsers.MangaParser
+import org.koitharu.kotatsu.parsers.config.ConfigKey
+import org.koitharu.kotatsu.parsers.model.*
+
+/**
+ * This parser is just for parser development, it should not be used in releases
+ */
+class DummyParser(override val context: MangaLoaderContext) : MangaParser(MangaSource.DUMMY) {
+
+	override val configKeyDomain: ConfigKey.Domain
+		get() = ConfigKey.Domain("", null)
+
+	override val sortOrders: Set<SortOrder>
+		get() = EnumSet.allOf(SortOrder::class.java)
+
+	override suspend fun getDetails(manga: Manga): Manga {
+		TODO("Not yet implemented")
+	}
+
+	override suspend fun getList(
+		offset: Int,
+		query: String?,
+		tags: Set<MangaTag>?,
+		sortOrder: SortOrder?
+	): List<Manga> {
+		TODO("Not yet implemented")
+	}
+
+	override suspend fun getPages(chapter: MangaChapter): List<MangaPage> {
+		TODO("Not yet implemented")
+	}
+
+	override suspend fun getTags(): Set<MangaTag> {
+		TODO("Not yet implemented")
+	}
+}

app/src/debug/java/org/koitharu/kotatsu/core/parser/MangaParser.kt

@@ -0,0 +1,14 @@
+package org.koitharu.kotatsu.core.parser
+
+import org.koitharu.kotatsu.parsers.MangaLoaderContext
+import org.koitharu.kotatsu.parsers.MangaParser
+import org.koitharu.kotatsu.parsers.model.MangaSource
+import org.koitharu.kotatsu.parsers.newParser
+
+fun MangaParser(source: MangaSource, loaderContext: MangaLoaderContext): MangaParser {
+	return if (source == MangaSource.DUMMY) {
+		DummyParser(loaderContext)
+	} else {
+		source.newParser(loaderContext)
+	}
+}