3 files changed, 71 insertions, 0 deletions

diff --git a/DomeKey/Mappings.h b/DomeKey/Mappings.h
index ee878f1..2c46dde 100644
--- a/DomeKey/Mappings.h
+++ b/DomeKey/Mappings.h
@@ -7,7 +7,17 @@
 //
 
 #import <Foundation/Foundation.h>
+#include <notify.h>
+
+@protocol Reloadable
+
+- (void)reload;
+
+@end
 
 @interface Mappings : NSObject
 
++ (void)observeReloadNotification;
++ (void)dispatchReload;
+
 @end
diff --git a/DomeKey/Mappings.m b/DomeKey/Mappings.m
index bf68829..0d57fa6 100644
--- a/DomeKey/Mappings.m
+++ b/DomeKey/Mappings.m
@@ -8,6 +8,58 @@
 
 #import "Mappings.h"
 
+#define NOTIFICATION_NAME_RELOAD "com.teddywing.DomeKey.reload_mappings"
+
+const CFStringRef CFNOTIFICATION_NAME_RELOAD = CFSTR(NOTIFICATION_NAME_RELOAD);
+
 @implementation Mappings
 
+- (void)createXPCConnection
+{
+    NSXPCInterface *interface = [NSXPCInterface
+        interfaceWithProtocol:@protocol(Reloadable)];
+    NSXPCConnection *connection = [[NSXPCConnection alloc]
+        initWithServiceName:@"com.teddywing.DomeKey"];
+    [connection setRemoteObjectInterface:interface];
+    [connection resume];
+}
+
++ (void)observeReloadNotification
+{
+    CFNotificationCenterRef center = CFNotificationCenterGetDarwinNotifyCenter();
+
+    if (center) {
+        CFNotificationCenterAddObserver(
+            center,
+            NULL,
+            reload_mappings,
+            CFNOTIFICATION_NAME_RELOAD,
+            NULL,
+            CFNotificationSuspensionBehaviorDeliverImmediately
+        );
+    }
+}
+
+void reload_mappings(
+    CFNotificationCenterRef center,
+    void *observer,
+    CFStringRef name,
+    const void *object,
+    CFDictionaryRef userInfo
+) {
+    if (CFStringCompare(name, CFNOTIFICATION_NAME_RELOAD, 0) ==
+            kCFCompareEqualTo) {
+        // Reload mappings
+        NSLog(@"TODO: reload mappings");
+    }
+}
+
++ (void)dispatchReload
+{
+    if (notify_post(NOTIFICATION_NAME_RELOAD) != 0) {
+        // Notification failed
+        NSLog(@"Reload notification failed");
+    }
+}
+
 @end
diff --git a/DomeKey/main.m b/DomeKey/main.m
index e61929c..5bda636 100644
--- a/DomeKey/main.m
+++ b/DomeKey/main.m
@@ -8,8 +8,15 @@
 
 #import <Foundation/Foundation.h>
 #import "AppDelegate.h"
+#import "Mappings.h"
 
 int main(int argc, const char * argv[]) {
+    if (argc == 2 && strcmp(argv[1], "--reload-mappings") == 0) {
+        [Mappings dispatchReload];
+
+        return 0; // TODO: Return result of `notify_post`, and still log
+    }
+
     @autoreleasepool {
         [NSApplication sharedApplication];
         AppDelegate *app = [[AppDelegate alloc] init];
@@ -18,6 +25,8 @@ int main(int argc, const char * argv[]) {
         // insert code here...
         NSLog(@"Hello, World!");
 
+        [Mappings observeReloadNotification];
+
         [NSApp run];
     }
     return 0;