feat: move native communication to FFI (#1457)

ui/flutter/ios/Runner/AppDelegate.swift

@@ -19,6 +19,7 @@ import UIKit
       name: "gopeed.com/libgopeed",
       binaryMessenger: messenger
     )
+    let taskEventForwarder = GopeedTaskEventForwarder(channel: libgopeedChannel)
     libgopeedChannel.setMethodCallHandler { call, result in
       switch call.method {
       case "start":
@@ -41,6 +42,26 @@ import UIKit
       case "stop":
         LibgopeedStop()
         result(nil)
+      case "getApiServerState":
+        result(LibgopeedGetAPIServerState())
+      case "startApiServer":
+        result(LibgopeedStartAPIServer())
+      case "stopApiServer":
+        result(LibgopeedStopAPIServer())
+      case "restartApiServer":
+        result(LibgopeedRestartAPIServer())
+      case "invoke":
+        let arguments = call.arguments as? [String: Any]
+        let method = arguments?["method"] as? String ?? ""
+        let path = arguments?["path"] as? String ?? ""
+        let query = arguments?["query"] as? String ?? ""
+        let body = arguments?["body"] as? String ?? ""
+        result(LibgopeedInvoke(method, path, query, body))
+      case "subscribeTaskEvents":
+        let arguments = call.arguments as? [String: Any]
+        let mask = (arguments?["mask"] as? NSNumber)?.int64Value ?? 0
+        GopeedSubscribeTaskEventsWithForwarder(mask, mask == 0 ? nil : taskEventForwarder)
+        result(nil)
       default:
         result(FlutterMethodNotImplemented)
       }

ui/flutter/ios/Runner/GopeedTaskEventForwarder.h

@@ -0,0 +1,16 @@
+#import <Flutter/Flutter.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface GopeedTaskEventForwarder : NSObject
+
+- (instancetype)initWithChannel:(FlutterMethodChannel *)channel NS_DESIGNATED_INITIALIZER;
+- (instancetype)init NS_UNAVAILABLE;
+
+@end
+
+FOUNDATION_EXPORT void GopeedSubscribeTaskEventsWithForwarder(
+    int64_t mask,
+    GopeedTaskEventForwarder * _Nullable listener);
+
+NS_ASSUME_NONNULL_END

ui/flutter/ios/Runner/GopeedTaskEventForwarder.m

@@ -0,0 +1,35 @@
+#import "GopeedTaskEventForwarder.h"
+
+#import <Libgopeed/Libgopeed.h>
+
+@interface GopeedTaskEventForwarder () <LibgopeedTaskEventListener>
+
+@property(nonatomic, strong) FlutterMethodChannel *channel;
+
+@end
+
+@implementation GopeedTaskEventForwarder
+
+- (instancetype)initWithChannel:(FlutterMethodChannel *)channel {
+  self = [super init];
+  if (self) {
+    _channel = channel;
+  }
+  return self;
+}
+
+- (void)onTaskEvent:(NSString * _Nullable)payload {
+  NSString *arguments = payload ?: @"";
+  FlutterMethodChannel *channel = self.channel;
+  dispatch_async(dispatch_get_main_queue(), ^{
+    [channel invokeMethod:@"taskEvent" arguments:arguments];
+  });
+}
+
+@end
+
+void GopeedSubscribeTaskEventsWithForwarder(
+    int64_t mask,
+    GopeedTaskEventForwarder * _Nullable listener) {
+  LibgopeedSubscribeTaskEvents(mask, listener);
+}

ui/flutter/ios/Runner/Runner-Bridging-Header.h

@@ -1 +1,2 @@
 #import "GeneratedPluginRegistrant.h"
+#import "GopeedTaskEventForwarder.h"