Use dependency injection for most singletons

websites/src/main/java/de/mm20/launcher2/search/data/Website.kt

@@ -39,17 +39,6 @@ class Website(
         val color: Int
 ) : Searchable() {
 
-    override fun serialize(): String {
-        return jsonObjectOf(
-                "label" to label,
-                "url" to url,
-                "description" to description,
-                "image" to image,
-                "favicon" to favicon,
-                "color" to color
-        ).toString()
-    }
-
     override val key = "web://$url"
     override suspend fun loadIconAsync(context: Context, size: Int): LauncherIcon? {
         if (favicon.isEmpty()) return null
@@ -159,17 +148,5 @@ class Website(
                 ""
             }
         }
-
-        fun deserialize(serialized: String): Website {
-            val json = JSONObject(serialized)
-            return Website(
-                    label = json.getString("label"),
-                    favicon = json.getString("favicon"),
-                    image = json.getString("image"),
-                    description = json.getString("description"),
-                    url = json.getString("url"),
-                    color = json.getInt("color")
-            )
-        }
     }
 }

websites/src/main/java/de/mm20/launcher2/websites/Module.kt

@@ -0,0 +1,12 @@
+package de.mm20.launcher2.websites
+
+import org.koin.android.ext.koin.androidContext
+import org.koin.androidx.viewmodel.dsl.viewModel
+import org.koin.dsl.module
+
+val websitesModule = module {
+    single { WebsiteRepository(androidContext()) }
+    viewModel {
+        WebsiteViewModel(get())
+    }
+}

websites/src/main/java/de/mm20/launcher2/websites/WebsiteRepository.kt

@@ -9,16 +9,16 @@ import kotlinx.coroutines.withContext
 import okhttp3.OkHttpClient
 import java.util.concurrent.TimeUnit
 
-class WebsiteRepository private constructor(val context: Context): BaseSearchableRepository() {
+class WebsiteRepository(val context: Context) : BaseSearchableRepository() {
 
     val website = MutableLiveData<Website?>()
 
     private val httpClient = OkHttpClient
-            .Builder()
-            .connectTimeout(200, TimeUnit.MILLISECONDS)
-            .readTimeout(3000, TimeUnit.MILLISECONDS)
-            .writeTimeout(1000, TimeUnit.MILLISECONDS)
-            .build()
+        .Builder()
+        .connectTimeout(200, TimeUnit.MILLISECONDS)
+        .readTimeout(3000, TimeUnit.MILLISECONDS)
+        .writeTimeout(1000, TimeUnit.MILLISECONDS)
+        .build()
 
     override fun onCancel() {
         super.onCancel()
@@ -40,13 +40,4 @@ class WebsiteRepository private constructor(val context: Context): BaseSearchabl
         }
         website.value = wiki
     }
-
-    companion object {
-        private lateinit var instance: WebsiteRepository
-
-        fun getInstance(context: Context): WebsiteRepository {
-            if(!::instance.isInitialized) instance = WebsiteRepository(context.applicationContext)
-            return instance
-        }
-    }
 }

websites/src/main/java/de/mm20/launcher2/websites/WebsiteSerialization.kt

@@ -0,0 +1,39 @@
+package de.mm20.launcher2.websites
+
+import de.mm20.launcher2.ktx.jsonObjectOf
+import de.mm20.launcher2.search.SearchableDeserializer
+import de.mm20.launcher2.search.SearchableSerializer
+import de.mm20.launcher2.search.data.Searchable
+import de.mm20.launcher2.search.data.Website
+import org.json.JSONObject
+
+class WebsiteSerializer : SearchableSerializer {
+    override fun serialize(searchable: Searchable): String {
+        searchable as Website
+        return jsonObjectOf(
+            "label" to searchable.label,
+            "url" to searchable.url,
+            "description" to searchable.description,
+            "image" to searchable.image,
+            "favicon" to searchable.favicon,
+            "color" to searchable.color
+        ).toString()
+    }
+
+    override val typePrefix: String
+        get() = "website"
+}
+
+class WebsiteDeserializer: SearchableDeserializer {
+    override fun deserialize(serialized: String): Searchable? {
+        val json = JSONObject(serialized)
+        return Website(
+            label = json.getString("label"),
+            favicon = json.getString("favicon"),
+            image = json.getString("image"),
+            description = json.getString("description"),
+            url = json.getString("url"),
+            color = json.getInt("color")
+        )
+    }
+}

websites/src/main/java/de/mm20/launcher2/websites/WebsiteViewModel.kt

@@ -1,10 +1,11 @@
 package de.mm20.launcher2.websites
 
-import android.app.Application
-import androidx.lifecycle.AndroidViewModel
 import androidx.lifecycle.LiveData
+import androidx.lifecycle.ViewModel
 import de.mm20.launcher2.search.data.Website
 
-class WebsiteViewModel(val app: Application): AndroidViewModel(app) {
-    val website: LiveData<Website?> = WebsiteRepository.getInstance(app).website
+class WebsiteViewModel(
+    websiteRepository: WebsiteRepository
+): ViewModel() {
+    val website: LiveData<Website?> = websiteRepository.website
 }