Update platform detection to include arch.

This is for M1 mac support. Future commit :^)

Author: e3ndr

src/main/java/dev/webview/Platform.java

@@ -23,13 +23,13 @@
 import co.casterlabs.rakurai.json.element.JsonElement;
 import co.casterlabs.rakurai.json.serialization.JsonParseException;
 import dev.webview.WebviewNative.BindCallback;
+import dev.webview.platform.OperatingSystem;
+import dev.webview.platform.Platform;
 import lombok.NonNull;
 
 public class Webview implements Closeable, Runnable {
     private static final WebviewNative N;
 
-    public static final Platform PLATFORM = Platform.get();
-
     static {
         WebviewNative.runSetup();
         N = Native.load("webview", WebviewNative.class);
@@ -79,7 +79,7 @@ private void updateSize() {
                 // There is a random margin on Windows that isn't visible, so we must
                 // compensate.
                 // TODO figure out why this is caused.
-                if (PLATFORM == Platform.WINDOWS) {
+                if (Platform.os == OperatingSystem.WINDOWS) {
                     width -= 16;
                     height -= 39;
                 }

src/main/java/dev/webview/Webview.java

@@ -19,7 +19,7 @@ public interface WebviewNative extends Library {
     static void runSetup() {
         String[] libraries = null;
 
-        switch (Webview.PLATFORM) {
+        switch (Platform.os) {
             case LINUX: {
                 libraries = new String[] {
                         "libwebview.so"

src/main/java/dev/webview/WebviewNative.java

@@ -0,0 +1,36 @@
+package dev.webview.platform;
+
+import java.util.regex.Pattern;
+
+import lombok.AllArgsConstructor;
+
+@AllArgsConstructor
+public enum Arch {
+    // @formatter:off
+    AMD64    ("amd64",    "amd64|x86_64"),
+    X86      ("x86",      "x86|i386|i486|i586|i686|i786"),
+    AARCH64  ("aarch64",  "arm64|aarch64"),
+    ARM32    ("arm32",    "arm");
+    // @formatter:on
+
+    private String str;
+    private String regex;
+
+    static Arch get() {
+        String osArch = System.getProperty("os.arch").toLowerCase();
+
+        for (Arch arch : values()) {
+            if (Pattern.compile(arch.regex).matcher(osArch).find()) {
+                return arch;
+            }
+        }
+
+        throw new UnsupportedOperationException("Unknown cpu arch: " + osArch);
+    }
+
+    @Override
+    public String toString() {
+        return this.str;
+    }
+
+}

src/main/java/dev/webview/platform/Arch.java

@@ -0,0 +1,35 @@
+package dev.webview.platform;
+
+import java.util.regex.Pattern;
+
+import lombok.AllArgsConstructor;
+
+@AllArgsConstructor
+public enum OperatingSystem {
+    // @formatter:off
+    MACOSX   ("macOS",    "mac|darwin"),
+    LINUX    ("Linux",    "nux"),
+    WINDOWS  ("Windows",  "win");
+    // @formatter:on
+
+    private String str;
+    private String regex;
+
+    static OperatingSystem get() {
+        String osName = System.getProperty("os.name").toLowerCase();
+
+        for (OperatingSystem os : values()) {
+            if (Pattern.compile(os.regex).matcher(osName).find()) {
+                return os;
+            }
+        }
+
+        throw new UnsupportedOperationException("Unknown operating system: " + osName);
+    }
+
+    @Override
+    public String toString() {
+        return this.str;
+    }
+
+}

src/main/java/dev/webview/platform/OperatingSystem.java

@@ -0,0 +1,12 @@
+package dev.webview.platform;
+
+public class Platform {
+    public static final Arch arch;
+    public static final OperatingSystem os;
+
+    static {
+        arch = Arch.get();
+        os = OperatingSystem.get();
+    }
+
+}