Add kotlin multiplatform bindings

lib/ls-sdk-bindings/Cargo.toml

@@ -16,6 +16,10 @@ crate-type = ["staticlib", "cdylib", "lib"]
 anyhow = { workspace = true }
 breez-liquid-sdk = { path = "../ls-sdk-core" }
 uniffi = { workspace = true, features = [ "bindgen-tests", "cli" ] }
+# Bindgen used by KMP, version has to match the one supported by KMP
+uniffi_bindgen = "0.25.2"
+uniffi-kotlin-multiplatform = { git = "https://gitlab.com/trixnity/uniffi-kotlin-multiplatform-bindings", rev = "55d51f3abf9819b32bd81756053dcfc10f8d5522" }
+camino = "1.1.1"
 thiserror = { workspace = true }
 
 [build-dependencies]

lib/ls-sdk-bindings/bindings-kotlin-multiplatform/.gitignore

@@ -0,0 +1,54 @@
+# Created by https://www.toptal.com/developers/gitignore/api/android
+# Edit at https://www.toptal.com/developers/gitignore?templates=android
+
+### Android ###
+# Gradle files
+.gradle/
+build/
+
+# Local configuration file (sdk path, etc)
+local.properties
+
+# Log/OS Files
+*.log
+
+# Android Studio generated files and folders
+captures/
+.externalNativeBuild/
+.cxx/
+*.apk
+output.json
+
+# IntelliJ
+*.iml
+.idea/
+misc.xml
+deploymentTargetDropDown.xml
+render.experimental.xml
+
+# Keystore files
+*.jks
+*.keystore
+
+# Google Services (e.g. APIs or Firebase)
+google-services.json
+
+# Android Profiling
+*.hprof
+
+### Android Patch ###
+gen-external-apklibs
+
+# Replacement of .externalNativeBuild directories introduced
+# with Android Studio 3.5.
+
+# End of https://www.toptal.com/developers/gitignore/api/android
+
+breez-liquid-sdk-kmp/src/androiddMain/jniLibs/
+breez-liquid-sdk-kmp/src/jvmMain/jniLibs/
+
+breez-liquid-sdk-kmp/src/commonMain/kotlin/breez_liquid_sdk
+breez-liquid-sdk-kmp/src/jvmMain/kotlin/breez_liquid_sdk
+breez-liquid-sdk-kmp/src/androidMain/kotlin/breez_liquid_sdk
+breez-liquid-sdk-kmp/src/nativeMain/kotlin/breez_liquid_sdk
+breez-liquid-sdk-kmp/src/nativeInterop/cinterop/headers/breez_liquid_sdk

lib/ls-sdk-bindings/bindings-kotlin-multiplatform/breez-liquid-sdk-kmp/build.gradle.kts

@@ -0,0 +1,135 @@
+plugins {
+    kotlin("multiplatform")
+    id("com.android.library")
+    id("maven-publish")
+}
+
+apply(plugin = "kotlinx-atomicfu")
+
+kotlin {
+    // Enable the default target hierarchy
+    applyDefaultHierarchyTemplate()
+
+    androidTarget {
+        compilations.all {
+            kotlinOptions {
+                jvmTarget = JavaVersion.VERSION_17.majorVersion
+            }
+        }
+
+        publishLibraryVariants("release")
+    }
+
+    jvm {
+        compilations.all {
+            kotlinOptions.jvmTarget = JavaVersion.VERSION_17.majorVersion
+        }
+    }
+
+    listOf(
+        iosX64(),
+        iosArm64(),
+        iosSimulatorArm64()
+    ).forEach {
+        val platform = when (it.targetName) {
+            "iosSimulatorArm64" -> "ios_simulator_arm64"
+            "iosArm64" -> "ios_arm64"
+            "iosX64" -> "ios_x64"
+            else -> error("Unsupported target $name")
+        }
+
+        it.compilations["main"].cinterops {
+            create("breezCInterop") {
+                defFile(project.file("src/nativeInterop/cinterop/breez.def"))
+                includeDirs(project.file("src/nativeInterop/cinterop/headers/breez_liquid_sdk"), project.file("src/libs/$platform"))
+            }
+        }
+    }
+
+    sourceSets {
+        all {
+            languageSettings.apply {
+                optIn("kotlinx.cinterop.ExperimentalForeignApi")
+            }
+        }
+
+        val commonMain by getting {
+            dependencies {
+                implementation("com.squareup.okio:okio:3.6.0")
+                implementation("org.jetbrains.kotlinx:kotlinx-datetime:0.5.0")
+                implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.8.0")
+            }
+        }
+
+        val jvmMain by getting {
+            dependsOn(commonMain)
+            dependencies {
+                implementation("net.java.dev.jna:jna:5.13.0")
+            }
+        }
+
+        val androidMain by getting {
+            dependsOn(commonMain)
+            dependencies {
+                implementation("net.java.dev.jna:jna:5.13.0@aar")
+                implementation("org.jetbrains.kotlinx:atomicfu:0.23.1")
+            }
+        }
+    }
+}
+
+android {
+    namespace = "technology.breez"
+    compileSdk = 33
+
+    defaultConfig {
+        minSdk = 21
+        consumerProguardFiles("consumer-rules.pro")
+    }
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
+    }
+}
+
+val libraryVersion: String by project
+
+group = "technology.breez"
+version = libraryVersion
+
+publishing {
+    repositories {
+        maven {
+            name = "breezReposilite"
+            url = uri("https://mvn.breez.technology/releases")
+            credentials(PasswordCredentials::class)
+            authentication {
+                create<BasicAuthentication>("basic")
+            }
+        }
+    }
+
+    publications {
+        this.forEach {
+            (it as MavenPublication).apply {
+                pom {
+                    name.set("breez-liquid-sdk-kmp")
+                    description.set("The Breez Liquid SDK enables mobile developers to integrate Liquid swaps into their apps with a very shallow learning curve.")
+                    url.set("https://breez.technology")
+                    licenses {
+                        license {
+                            name.set("MIT")
+                            url.set("https://github.com/breez/breez-liquid-sdk/blob/main/LICENSE")
+                        }
+                    }
+                    scm {
+                        connection.set("scm:git:github.com/breez/breez-liquid-sdk.git")
+                        developerConnection.set("scm:git:ssh://github.com/breez/breez-liquid-sdk.git")
+                        url.set("https://github.com/breez/breez-liquid-sdk")
+                    }
+                }
+            }
+        }
+    }
+}