Remove non-kotlin related files, add bdk-ffi as submodule, update build.sh

android/src/androidTest/assets/logback.xml

@@ -0,0 +1,14 @@
+<configuration>
+  <appender name="logcat" class="ch.qos.logback.classic.android.LogcatAppender">
+    <tagEncoder>
+      <pattern>%logger{12}</pattern>
+    </tagEncoder>
+    <encoder>
+      <pattern>[%-20thread] %msg</pattern>
+    </encoder>
+  </appender>
+
+  <root level="DEBUG">
+    <appender-ref ref="logcat" />
+  </root>
+</configuration>

android/src/androidTest/kotlin/org/bitcoindevkit/AndroidLibTest.kt

@@ -0,0 +1,106 @@
+package org.bitcoindevkit
+
+import org.junit.Assert.*
+import org.junit.Test
+import android.app.Application
+import android.content.Context.MODE_PRIVATE
+import androidx.test.core.app.ApplicationProvider
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import org.junit.runner.RunWith
+import org.slf4j.Logger
+import org.slf4j.LoggerFactory
+import java.io.File
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class AndroidLibTest {
+
+    fun getTestDataDir(): String {
+        val context = ApplicationProvider.getApplicationContext<Application>()
+        return context.getDir("bdk-test", MODE_PRIVATE).toString()
+    }
+
+    fun cleanupTestDataDir(testDataDir: String) {
+        File(testDataDir).deleteRecursively()
+    }
+
+    val log: Logger = LoggerFactory.getLogger(AndroidLibTest::class.java)
+
+    val desc =
+        "wpkh([c258d2e4/84h/1h/0h]tpubDDYkZojQFQjht8Tm4jsS3iuEmKjTiEGjG6KnuFNKKJb5A6ZUCUZKdvLdSDWofKi4ToRCwb9poe1XdqfUnP4jaJjCB2Zwv11ZLgSbnZSNecE/0/*)"
+
+    @Test
+    fun memoryWalletNewAddress() {
+        val config = DatabaseConfig.Memory("")
+        val wallet = OfflineWallet(desc, Network.REGTEST, config)
+        val address = wallet.getNewAddress()
+        assertNotNull(address)
+        assertEquals(address, "bcrt1qzg4mckdh50nwdm9hkzq06528rsu73hjxytqkxs")
+    }
+
+    @Test(expected = BdkException.Descriptor::class)
+    fun invalidDescriptorExceptionIsThrown() {
+        val config = DatabaseConfig.Memory("")
+        OfflineWallet("invalid-descriptor", Network.REGTEST, config)
+    }
+
+    @Test
+    fun sledWalletNewAddress() {
+        val testDataDir = getTestDataDir()
+        val config = DatabaseConfig.Sled(SledDbConfiguration(testDataDir, "testdb"))
+        val wallet = OfflineWallet(desc, Network.REGTEST, config)
+        val address = wallet.getNewAddress()
+        assertNotNull(address)
+        assertEquals(address, "bcrt1qzg4mckdh50nwdm9hkzq06528rsu73hjxytqkxs")
+        cleanupTestDataDir(testDataDir)
+    }
+
+    @Test
+    fun onlineWalletInMemory() {
+        val db = DatabaseConfig.Memory("")
+        val client = BlockchainConfig.Electrum(
+            ElectrumConfig(
+                "ssl://electrum.blockstream.info:60002",
+                null,
+                5u,
+                null,
+                100u
+            )
+        )
+        val wallet = OnlineWallet(desc, null, Network.TESTNET, db, client)
+        assertNotNull(wallet)
+        val network = wallet.getNetwork()
+        assertEquals(network, Network.TESTNET)
+    }
+
+    class LogProgress : BdkProgress {
+        val log: Logger = LoggerFactory.getLogger(AndroidLibTest::class.java)
+
+        override fun update(progress: Float, message: String?) {
+            log.debug("Syncing...")
+        }
+    }
+
+    @Test
+    fun onlineWalletSyncGetBalance() {
+        val db = DatabaseConfig.Memory("")
+        val client = BlockchainConfig.Electrum(
+            ElectrumConfig(
+                "ssl://electrum.blockstream.info:60002",
+                null,
+                5u,
+                null,
+                100u
+            )
+        )
+        val wallet = OnlineWallet(desc, null, Network.TESTNET, db, client)
+        wallet.sync(LogProgress(), null)
+        val balance = wallet.getBalance()
+        assertTrue(balance > 0u)
+    }
+
+}

android/src/main/AndroidManifest.xml

@@ -0,0 +1,6 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+  package="org.bitcoindevkit">
+
+  <uses-permission android:name="android.permission.INTERNET" />
+
+</manifest>