Use androidx.startup library to obtain default databases directory fo…

…r Android Runtime

library/driver/src/androidMain/kotlin/io/toxicity/sqlite/mc/driver/internal/AndroidPlatform.kt

@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2023 Toxicity
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+package io.toxicity.sqlite.mc.driver.internal
+
+import java.io.File
+
+internal actual val DEFAULT_DATABASES_DIR: File? by lazy {
+    SqliteMCInitializer.Impl.INSTANCE.databasesDir ?: run {
+
+        if (System.getProperty("java.runtime.name")?.contains("android", ignoreCase = true) == true) {
+            // It's android runtime and androidx.startup was not initialized... something
+            // is very wrong. Set to null so exception is lazily thrown.
+            null
+        } else {
+            // Android unit tests. Default to temporary directory for the host machine
+            System.getProperty("java.io.tmpdir")
+                ?.ifBlank { null }
+                ?.let { tmp -> File(tmp).resolve("sqlite_mc").resolve(".databases") }
+        }
+    }
+}

library/driver/src/commonMain/kotlin/io/toxicity/sqlite/mc/driver/config/DatabasesDir.kt

@@ -33,7 +33,8 @@ import kotlin.jvm.JvmField
  * to not throw exception when [DatabasesDir] is instantiated.
  *
  * Default Locations:
- * - Android: `/data/user/{userid}/{your.application.id}/databases/`
+ * - Android Runtime: `/data/user/{userid}/{your.application.id}/databases/`
+ * - Android Unit Tests: `{tmp dir}/sqlite_mc/.databases`
  * - Jvm - Unix: `~/.databases/`
  * - Jvm - Mingw: `{drive}:\Users\{username}\.databases\`
  * - Native - Apple: `~/Documents/databases/`

library/driver/src/jvmAndroidMain/kotlin/io/toxicity/sqlite/mc/driver/config/DatabasesDir.kt

@@ -18,6 +18,7 @@
 package io.toxicity.sqlite.mc.driver.config
 
 import io.toxicity.sqlite.mc.driver.SQLiteMCDriver
+import io.toxicity.sqlite.mc.driver.internal.DEFAULT_DATABASES_DIR
 import java.io.File
 import java.nio.file.Path
 import kotlin.io.path.pathString
@@ -34,7 +35,8 @@ import kotlin.io.path.pathString
  * to not throw exception when [DatabasesDir] is instantiated.
  *
  * Default Locations:
- * - Android: `/data/user/{userid}/{your.application.id}/databases/`
+ * - Android Runtime: `/data/user/{userid}/{your.application.id}/databases/`
+ * - Android Unit Tests: `{tmp dir}/sqlite_mc/.databases`
  * - Jvm - Unix: `~/.databases/`
  * - Jvm - Mingw: `{drive}:\Users\{username}\.databases\`
  *
@@ -50,50 +52,10 @@ public actual class DatabasesDir public actual constructor(path: String?) {
     public actual val path: String? = if (!path.isNullOrBlank()) {
         File(path).absolutePath
     } else {
-        DEFAULT_DIR
+        DEFAULT_DATABASES_DIR?.absolutePath
     }
 
     public actual override fun equals(other: Any?): Boolean = other is DatabasesDir && other.path == path
     public actual override fun hashCode(): Int = 17 * 31 + path.hashCode()
     public actual override fun toString(): String = path ?: ""
-
-    private companion object {
-
-        private val DEFAULT_DIR: String? by lazy {
-            var defaultDir: File? = null
-
-            if (
-                System.getProperty("os.name")?.contains("Linux", ignoreCase = true) == true
-                && System.getProperty("java.vendor")?.equals("The Android Project", ignoreCase = true) == true
-            ) {
-                val cache: String? = System.getProperty("java.io.tmpdir")
-
-                defaultDir = if (
-                    cache?.startsWith("/data/user/") == true
-                    && cache.endsWith("/cache")
-                ) {
-                    File(cache)
-                } else {
-                    val dexcache: String? = System.getProperty("dexmaker.dexcache")
-
-                    if (
-                        dexcache?.startsWith("/data/user/") == true
-                        && dexcache.endsWith("/app_dxmaker_cache")
-                    ) {
-                        File(dexcache)
-                    } else {
-                        null
-                    }
-                }?.resolveSibling("databases")
-            }
-
-            if (defaultDir == null) {
-                defaultDir = System.getProperty("user.home")
-                    ?.ifBlank { null }
-                    ?.let { home -> File(home).resolve(".databases") }
-            }
-
-            defaultDir?.absolutePath
-        }
-    }
 }

library/driver/src/jvmAndroidMain/kotlin/io/toxicity/sqlite/mc/driver/internal/JvmAndroidPlatform.kt

@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2023 Toxicity
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+package io.toxicity.sqlite.mc.driver.internal
+
+import java.io.File
+
+internal expect val DEFAULT_DATABASES_DIR: File?

library/driver/src/jvmMain/kotlin/io/toxicity/sqlite/mc/driver/internal/JvmPlatform.kt

@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2023 Toxicity
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+package io.toxicity.sqlite.mc.driver.internal
+
+import java.io.File
+
+internal actual val DEFAULT_DATABASES_DIR: File? by lazy {
+    System.getProperty("user.home")
+        ?.ifBlank { null }
+        ?.let { home -> File(home).resolve(".databases") }
+}