add readme and license, rename the server module

server/src/main/kotlin/eu/kanade/tachiyomi/source/SourceManager.kt

@@ -0,0 +1,78 @@
+package eu.kanade.tachiyomi.source
+
+//import android.content.Context
+//import eu.kanade.tachiyomi.R
+import eu.kanade.tachiyomi.source.model.Page
+import eu.kanade.tachiyomi.source.model.SChapter
+import eu.kanade.tachiyomi.source.model.SManga
+import eu.kanade.tachiyomi.source.online.HttpSource
+import rx.Observable
+
+open class SourceManager() {
+
+    private val sourcesMap = mutableMapOf<Long, Source>()
+
+    private val stubSourcesMap = mutableMapOf<Long, StubSource>()
+
+    init {
+        createInternalSources().forEach { registerSource(it) }
+    }
+
+    open fun get(sourceKey: Long): Source? {
+        return sourcesMap[sourceKey]
+    }
+
+    fun getOrStub(sourceKey: Long): Source {
+        return sourcesMap[sourceKey] ?: stubSourcesMap.getOrPut(sourceKey) {
+            StubSource(sourceKey)
+        }
+    }
+
+    fun getOnlineSources() = sourcesMap.values.filterIsInstance<HttpSource>()
+
+    fun getCatalogueSources() = sourcesMap.values.filterIsInstance<CatalogueSource>()
+
+    internal fun registerSource(source: Source, overwrite: Boolean = false) {
+        if (overwrite || !sourcesMap.containsKey(source.id)) {
+            sourcesMap[source.id] = source
+        }
+        if (overwrite || !stubSourcesMap.containsKey(source.id)) {
+            stubSourcesMap[source.id] = StubSource(source.id)
+        }
+    }
+
+    internal fun unregisterSource(source: Source) {
+        sourcesMap.remove(source.id)
+    }
+
+    private fun createInternalSources(): List<Source> = listOf(
+//        LocalSource(context)
+    )
+
+    private inner class StubSource(override val id: Long) : Source {
+
+        override val name: String
+            get() = id.toString()
+
+        override fun fetchMangaDetails(manga: SManga): Observable<SManga> {
+            return Observable.error(getSourceNotInstalledException())
+        }
+
+        override fun fetchChapterList(manga: SManga): Observable<List<SChapter>> {
+            return Observable.error(getSourceNotInstalledException())
+        }
+
+        override fun fetchPageList(chapter: SChapter): Observable<List<Page>> {
+            return Observable.error(getSourceNotInstalledException())
+        }
+
+        override fun toString(): String {
+            return name
+        }
+
+        private fun getSourceNotInstalledException(): Exception {
+//            return Exception(context.getString(R.string.source_not_installed, id.toString()))
+            return Exception("source not found")
+        }
+    }
+}