Initialize UniFFI demo and scripts (#896)

* add uniffi sh scripts and start demo application

Signed-off-by: Swapnil Tripathi <swapnil06.st@gmail.com>

* fix application

Signed-off-by: Swapnil Tripathi <swapnil06.st@gmail.com>

* update sdk and api level

Signed-off-by: Swapnil Tripathi <swapnil06.st@gmail.com>

* update android ndk

Signed-off-by: Swapnil Tripathi <swapnil06.st@gmail.com>

* fix script for generating bindings

Signed-off-by: Swapnil Tripathi <swapnil06.st@gmail.com>

* add instructions

Signed-off-by: Swapnil Tripathi <swapnil06.st@gmail.com>

---------

Signed-off-by: Swapnil Tripathi <swapnil06.st@gmail.com>

uniffi_aries_vcx/README.md

@@ -8,4 +8,15 @@ Core contains a crate which wraps over the `aries-vcx` crate to provide a UniFFI
 Coming soon..
 
 ## Building
-Coming soon..
+This module is distributed in three directories.
+1. `core`: The UniFFI bindings for Aries VCX.
+2. `demo`: Demo application consuming the UniFFI wrapper code.
+3. `scripts`: Contains helper sh scripts to ease the process of setting up, building and generating the UniFFI code.
+
+To set up the Android SDK, NDK and bootstrap the demo application, you can simply run the following scripts in the order:
+1. `android.prepare.sh`: This script will prepare the Android SDK and NDK for your system.
+2. `android.toolchain.sh`: This script will prepare the required android toolchain.
+3. `android.build.sh`: This script will build the UniFFI bindings and will also bootstrap and demo application for the target architecture.
+
+## Support
+Currently the builds have been tested for `arm64 (aarch64)` on a physical device. In the future we plan to support most of the architectures.

uniffi_aries_vcx/demo/.gitignore

@@ -0,0 +1,16 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties
+*.so

uniffi_aries_vcx/demo/app/.gitignore

@@ -0,0 +1 @@
+/build

uniffi_aries_vcx/demo/app/build.gradle

@@ -0,0 +1,70 @@
+plugins {
+    id 'com.android.application'
+    id 'org.jetbrains.kotlin.android'
+}
+
+android {
+    namespace 'org.hyperledger.ariesvcx'
+    compileSdk 33
+
+    defaultConfig {
+        applicationId "org.hyperledger.ariesvcx"
+        minSdk 26
+        targetSdk 33
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        vectorDrawables {
+            useSupportLibrary true
+        }
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+    buildFeatures {
+        compose true
+    }
+    composeOptions {
+        kotlinCompilerExtensionVersion '1.3.2'
+    }
+    packagingOptions {
+        resources {
+            excludes += '/META-INF/{AL2.0,LGPL2.1}'
+        }
+    }
+}
+
+dependencies {
+
+    implementation 'androidx.core:core-ktx:1.8.0'
+    implementation platform('org.jetbrains.kotlin:kotlin-bom:1.8.0')
+    implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.3.1'
+    implementation 'androidx.activity:activity-compose:1.5.1'
+    implementation platform('androidx.compose:compose-bom:2022.10.00')
+    implementation 'androidx.compose.ui:ui'
+    implementation 'androidx.compose.ui:ui-graphics'
+    implementation 'androidx.compose.ui:ui-tooling-preview'
+    implementation 'androidx.compose.material3:material3'
+    testImplementation 'junit:junit:4.13.2'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.5'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
+    androidTestImplementation platform('androidx.compose:compose-bom:2022.10.00')
+    androidTestImplementation 'androidx.compose.ui:ui-test-junit4'
+    debugImplementation 'androidx.compose.ui:ui-tooling'
+    debugImplementation 'androidx.compose.ui:ui-test-manifest'
+
+    // JNA
+    implementation "net.java.dev.jna:jna:5.13.0@aar"
+}

uniffi_aries_vcx/demo/app/proguard-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

uniffi_aries_vcx/demo/app/src/androidTest/java/org/hyperledger/ariesvcx/ExampleInstrumentedTest.kt

@@ -0,0 +1,24 @@
+package org.hyperledger.ariesvcx
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertEquals("org.hyperledger.ariesvcx", appContext.packageName)
+    }
+}

uniffi_aries_vcx/demo/app/src/main/AndroidManifest.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <application
+        android:allowBackup="true"
+        android:dataExtractionRules="@xml/data_extraction_rules"
+        android:fullBackupContent="@xml/backup_rules"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.Demo"
+        tools:targetApi="31">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:label="@string/app_name"
+            android:theme="@style/Theme.Demo">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

uniffi_aries_vcx/demo/app/src/main/java/org/hyperledger/ariesvcx/MainActivity.kt

@@ -0,0 +1,81 @@
+package org.hyperledger.ariesvcx
+
+import android.os.Bundle
+import android.system.Os
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.Button
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Snackbar
+import androidx.compose.material3.SnackbarHost
+import androidx.compose.material3.SnackbarHostState
+import androidx.compose.material3.Text
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+import kotlinx.coroutines.launch
+
+class MainActivity : ComponentActivity() {
+    @OptIn(ExperimentalMaterial3Api::class)
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        Os.setenv("EXTERNAL_STORAGE", this.filesDir.absolutePath, true);
+        setContent {
+            var walletConfigState by remember {
+                var walletConfig = WalletConfig(
+                    walletName = "test_create_wallet_add_uuid_here",
+                    walletKey = "8dvfYSt5d1taSd6yJdpjq4emkwsPDDLYxkNFysFD2cZY",
+                    walletKeyDerivation = "RAW",
+                    walletType = null,
+                    storageConfig = null,
+                    storageCredentials = null,
+                    rekey = null,
+                    rekeyDerivationMethod = null
+                )
+                mutableStateOf(walletConfig)
+            }
+            val snackbarHostState = remember { SnackbarHostState() }
+            val scope = rememberCoroutineScope()
+            Scaffold(Modifier.fillMaxSize(), snackbarHost = {
+                SnackbarHost(snackbarHostState) { data ->
+                    Snackbar(
+                        modifier = Modifier
+                            .padding(12.dp)
+                    ) {
+                        Text(data.visuals.message)
+                    }
+                }
+            }) {
+                Column(
+                    modifier = Modifier
+                        .padding(it)
+                        .fillMaxSize(),
+                    horizontalAlignment = Alignment.CenterHorizontally,
+                    verticalArrangement = Arrangement.Center
+                ){
+                    Spacer(modifier = Modifier.height(16.dp))
+                    Button(onClick = {
+                        newIndyProfile(walletConfigState)
+                        scope.launch {
+                            snackbarHostState.showSnackbar("New Indy profile: ${walletConfigState}")
+                        }
+                    }) {
+                        Text("Create new profile")
+                    }
+                }
+            }
+        }
+    }
+}

uniffi_aries_vcx/demo/app/src/main/java/org/hyperledger/ariesvcx/ui/theme/Color.kt

@@ -0,0 +1,11 @@
+package org.hyperledger.ariesvcx.ui.theme
+
+import androidx.compose.ui.graphics.Color
+
+val Purple80 = Color(0xFFD0BCFF)
+val PurpleGrey80 = Color(0xFFCCC2DC)
+val Pink80 = Color(0xFFEFB8C8)
+
+val Purple40 = Color(0xFF6650a4)
+val PurpleGrey40 = Color(0xFF625b71)
+val Pink40 = Color(0xFF7D5260)

uniffi_aries_vcx/demo/app/src/main/java/org/hyperledger/ariesvcx/ui/theme/Theme.kt

@@ -0,0 +1,70 @@
+package org.hyperledger.ariesvcx.ui.theme
+
+import android.app.Activity
+import android.os.Build
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.darkColorScheme
+import androidx.compose.material3.dynamicDarkColorScheme
+import androidx.compose.material3.dynamicLightColorScheme
+import androidx.compose.material3.lightColorScheme
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.SideEffect
+import androidx.compose.ui.graphics.toArgb
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalView
+import androidx.core.view.WindowCompat
+
+private val DarkColorScheme = darkColorScheme(
+    primary = Purple80,
+    secondary = PurpleGrey80,
+    tertiary = Pink80
+)
+
+private val LightColorScheme = lightColorScheme(
+    primary = Purple40,
+    secondary = PurpleGrey40,
+    tertiary = Pink40
+
+    /* Other default colors to override
+    background = Color(0xFFFFFBFE),
+    surface = Color(0xFFFFFBFE),
+    onPrimary = Color.White,
+    onSecondary = Color.White,
+    onTertiary = Color.White,
+    onBackground = Color(0xFF1C1B1F),
+    onSurface = Color(0xFF1C1B1F),
+    */
+)
+
+@Composable
+fun DemoTheme(
+    darkTheme: Boolean = isSystemInDarkTheme(),
+    // Dynamic color is available on Android 12+
+    dynamicColor: Boolean = true,
+    content: @Composable () -> Unit
+) {
+    val colorScheme = when {
+        dynamicColor && Build.VERSION.SDK_INT >= Build.VERSION_CODES.S -> {
+            val context = LocalContext.current
+            if (darkTheme) dynamicDarkColorScheme(context) else dynamicLightColorScheme(context)
+        }
+
+        darkTheme -> DarkColorScheme
+        else -> LightColorScheme
+    }
+    val view = LocalView.current
+    if (!view.isInEditMode) {
+        SideEffect {
+            val window = (view.context as Activity).window
+            window.statusBarColor = colorScheme.primary.toArgb()
+            WindowCompat.getInsetsController(window, view).isAppearanceLightStatusBars = darkTheme
+        }
+    }
+
+    MaterialTheme(
+        colorScheme = colorScheme,
+        typography = Typography,
+        content = content
+    )
+}

uniffi_aries_vcx/demo/app/src/main/java/org/hyperledger/ariesvcx/ui/theme/Type.kt

@@ -0,0 +1,34 @@
+package org.hyperledger.ariesvcx.ui.theme
+
+import androidx.compose.material3.Typography
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.sp
+
+// Set of Material typography styles to start with
+val Typography = Typography(
+    bodyLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 16.sp,
+        lineHeight = 24.sp,
+        letterSpacing = 0.5.sp
+    )
+    /* Other default text styles to override
+    titleLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 22.sp,
+        lineHeight = 28.sp,
+        letterSpacing = 0.sp
+    ),
+    labelSmall = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Medium,
+        fontSize = 11.sp,
+        lineHeight = 16.sp,
+        letterSpacing = 0.5.sp
+    )
+    */
+)