(function () {
  function post(action, payload) {
    var message = JSON.stringify({ action: action, payload: payload || {} });

    if (window.flutter_inappwebview && window.flutter_inappwebview.callHandler) {
      return window.flutter_inappwebview.callHandler("HyAppBridge", action, payload || {});
    }
    if (window.HyAppBridgeChannel && window.HyAppBridgeChannel.postMessage) {
      window.HyAppBridgeChannel.postMessage(message);
      return Promise.resolve();
    }
    if (window.FlutterBridge && window.FlutterBridge.postMessage) {
      window.FlutterBridge.postMessage(message);
      return Promise.resolve();
    }
    if (window.webkit && window.webkit.messageHandlers && window.webkit.messageHandlers.HyAppBridge) {
      window.webkit.messageHandlers.HyAppBridge.postMessage({ action: action, payload: payload || {} });
      return Promise.resolve();
    }

    window.dispatchEvent(new CustomEvent("hyapp:bridge-message", { detail: { action: action, payload: payload || {} } }));
    return Promise.resolve();
  }

  window.HyAppBridge = {
    post: post,
    back: function () {
      return post("back");
    },
    openUser: function (userId) {
      return post("openUser", { user_id: String(userId || "") });
    },
    openRoom: function (roomId) {
      return post("openRoom", { room_id: String(roomId || "") });
    },
    openRankNote: function (boardType) {
      return post("openRankNote", { board_type: String(boardType || "") });
    },
    ready: function (payload) {
      return post("ready", payload || {});
    }
  };
})();