From 72716832ad5dd3ac2607c7ad506ede3fb3fcd22c Mon Sep 17 00:00:00 2001
From: Kendall Weihe <kendallw@squareup.com>
Date: Fri, 5 Jul 2024 11:18:57 -0400
Subject: [PATCH] Begin MultiArchitecture

---
 .../kotlin/tbdex/sdk/httpclient/Offerings.kt  |  4 +-
 .../tbdex/sdk/rust/MultiArchitecture.kt       | 66 +++++++++++++++++++
 .../E2ePfiExemplarIntegrationTest.kt          |  1 +
 3 files changed, 70 insertions(+), 1 deletion(-)
 create mode 100644 bound/kt/src/main/kotlin/tbdex/sdk/rust/MultiArchitecture.kt

diff --git a/bound/kt/src/main/kotlin/tbdex/sdk/httpclient/Offerings.kt b/bound/kt/src/main/kotlin/tbdex/sdk/httpclient/Offerings.kt
index 491c6bde..a39e5621 100644
--- a/bound/kt/src/main/kotlin/tbdex/sdk/httpclient/Offerings.kt
+++ b/bound/kt/src/main/kotlin/tbdex/sdk/httpclient/Offerings.kt
@@ -2,8 +2,10 @@ package tbdex.sdk.httpclient
 
 import tbdex.sdk.resources.Offering
 import tbdex.sdk.rust.getOfferings as rustCoreGetOfferings
+import tbdex.sdk.rust.MultiArchitecture as RustCore
 
 fun getOfferings(pfiDidUri: String): List<Offering> {
-    val rustCoreOfferings = rustCoreGetOfferings(pfiDidUri)
+//    val rustCoreOfferings = rustCoreGetOfferings(pfiDidUri)
+    val rustCoreOfferings = RustCore.getOfferings(pfiDidUri)
     return rustCoreOfferings.map { Offering(it) }
 }
\ No newline at end of file
diff --git a/bound/kt/src/main/kotlin/tbdex/sdk/rust/MultiArchitecture.kt b/bound/kt/src/main/kotlin/tbdex/sdk/rust/MultiArchitecture.kt
new file mode 100644
index 00000000..d28df3a5
--- /dev/null
+++ b/bound/kt/src/main/kotlin/tbdex/sdk/rust/MultiArchitecture.kt
@@ -0,0 +1,66 @@
+package tbdex.sdk.rust
+
+import java.io.File
+
+private enum class SystemArchitecture {
+    MAC_APPLE_SILICON,
+    MAC_INTEL,
+    LINUX_UBUNTU_AMD64,
+    LINUX_ALPINE_AMD64,
+    UNSUPPORTED
+}
+
+private fun getSystemArchitecture(): SystemArchitecture {
+    val arch = System.getProperty("os.arch")?.lowercase() ?: return SystemArchitecture.UNSUPPORTED
+    val name = System.getProperty("os.name")?.lowercase() ?: return SystemArchitecture.UNSUPPORTED
+
+    return when {
+        name.contains("mac") && arch.contains("aarch64") -> SystemArchitecture.MAC_APPLE_SILICON
+        name.contains("mac") && arch.contains("x86_64") -> SystemArchitecture.MAC_INTEL
+
+        name.contains("linux") && arch.contains("amd64") -> {
+            val osRelease = File("/etc/os-release")
+            if (osRelease.exists()) {
+                val osReleaseContent = osRelease.readText().lowercase()
+                when {
+                    osReleaseContent.contains("ubuntu") -> SystemArchitecture.LINUX_UBUNTU_AMD64
+                    osReleaseContent.contains("alpine") -> SystemArchitecture.LINUX_ALPINE_AMD64
+                    else -> SystemArchitecture.UNSUPPORTED
+                }
+            } else {
+                SystemArchitecture.UNSUPPORTED
+            }
+        }
+
+        else -> SystemArchitecture.UNSUPPORTED
+    }
+}
+
+class MultiArchitecture {
+    companion object {
+        init {
+            val systemArchitecture = getSystemArchitecture()
+            when (systemArchitecture) {
+                SystemArchitecture.MAC_APPLE_SILICON -> {
+                    System.setProperty("uniffi.component.tbdex.libraryOverride", "tbdex_uniffi_aarch64_apple_darwin")
+                }
+                SystemArchitecture.MAC_INTEL -> {
+                    System.setProperty("uniffi.component.tbdex.libraryOverride", "tbdex_uniffi_x86_64_apple_darwin")
+                }
+                SystemArchitecture.LINUX_UBUNTU_AMD64 -> {
+                    throw Exception("${SystemArchitecture.LINUX_UBUNTU_AMD64} not yet supported")
+                }
+                SystemArchitecture.LINUX_ALPINE_AMD64 -> {
+                    throw Exception("${SystemArchitecture.LINUX_ALPINE_AMD64} not yet supported")
+                }
+                else -> {
+                    throw Exception("unsupported sysytem architecture")
+                }
+            }
+        }
+
+        fun getOfferings(pfiDidUri: String): List<tbdex.sdk.rust.Offering> {
+            return tbdex.sdk.rust.getOfferings(pfiDidUri)
+        }
+    }
+}
\ No newline at end of file
diff --git a/bound/kt/src/test/kotlin/tbdex/sdk/httpclient/E2ePfiExemplarIntegrationTest.kt b/bound/kt/src/test/kotlin/tbdex/sdk/httpclient/E2ePfiExemplarIntegrationTest.kt
index 5b02fc23..81e2ef21 100644
--- a/bound/kt/src/test/kotlin/tbdex/sdk/httpclient/E2ePfiExemplarIntegrationTest.kt
+++ b/bound/kt/src/test/kotlin/tbdex/sdk/httpclient/E2ePfiExemplarIntegrationTest.kt
@@ -5,6 +5,7 @@ import org.junit.jupiter.api.Disabled
 import org.junit.jupiter.api.Test
 import tbdex.sdk.messages.*
 import tbdex.sdk.web5.*
+import java.io.File
 
 class E2ePfiExemplarIntegrationTest {
     // this test is intended for early-development purposes