// Copyright 2023 The Google Research Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

syntax = "proto3";

package llm4mobile.proto;

option java_multiple_files = true;

// Types of the different UI objects.
enum ObjectType {
  UNKNOWN_TYPE = 0;
  BUTTON = 1;
  CHECKBOX = 2;
  CHECKEDTEXTVIEW = 3;
  EDITTEXT = 4;
  IMAGEBUTTON = 5;
  IMAGEVIEW = 6;
  RADIOBUTTON = 7;
  SLIDINGDRAWER = 8;
  SPINNER = 9;
  SWITCH = 10;
  TABWIDGET = 11;
  TEXTVIEW = 12;
  TOGGLEBUTTON = 13;
  VIDEOVIEW = 14;

  APPWIDGETHOSTVIEW = 15;          // android.appwidget.AppWidgetHostView
  VIEW = 16;                       // android.view.View
  WEBVIEW = 17;                    // android.webkit.WebView
  FRAMELAYOUT = 18;                // android.widget.FrameLayout
  HORIZONTALSCROLLVIEW = 19;       // android.widget.HorizontalScrollView
  LINEARLAYOUT = 20;               // android.widget.LinearLayout
  LISTVIEW = 21;                   // android.widget.ListView
  MULTIAUTOCOMPLETETEXTVIEW = 22;  // android.widget.MultiAutoCompleteTextView
  PROGRESSBAR = 23;                // android.widget.ProgressBar
  RELATIVELAYOUT = 24;             // android.widget.RelativeLayout
  SCROLLVIEW = 25;                 // android.widget.ScrollView
  TABHOST = 26;                    // android.widget.TabHost
  VIEWSWITCHER = 27;               // android.widget.ViewSwitcher

  SEEKBAR = 28;  // android.widget.SeekBar
}

// The on-screen grid location (3x3 grid) of an UI object.
enum GridLocation {
  UNKNOWN_LOCATION = 0;
  TOP_LEFT = 1;
  TOP_CENTER = 2;
  TOP_RIGHT = 3;
  LEFT = 4;
  CENTER = 5;
  RIGHT = 6;
  BOTTOM_LEFT = 7;
  BOTTOM_CENTER = 8;
  BOTTOM_RIGHT = 9;
}

// A simulation episode as output from the simulation pipeline.
message Episode {
  // A list of time steps from simulation.
  repeated TimeStep time_steps = 4;
}

// Environment output after taking an action.
message TimeStep {
  // Step index.
  int32 index = 1;

  // Current observation available to the agent.
  Observation observation = 2;
}

// Observation for the agent.
message Observation {
  // List of objects on the screen.
  repeated Object objects = 1;

  // Raw bytes of the screenshot.
  bytes screenshot = 3;

  // Id of image.
  string image_id = 13;

  // Raw bytes of the view hierarchy XML or Json
  oneof view_hierarchy_format {
    bytes xml = 4;
    bytes json = 9;
  }

  // Width of the screenshot.
  int32 screen_width = 5;

  // Height of the screenshot.
  int32 screen_height = 6;

  // Absolute path of screenshot file.
  string debug_screenshot_filepath = 10;

  // Absolute path of vew_hierarchy file.
  string debug_vh_filepath = 11;
}

// Screen object proto.
message Object {
  // Object id defined and used by each pipeline.
  string id = 100;

  // Object index in the observation object list.
  int32 index = 1;

  // The id of parent object.
  string parent_id = 101;

  // The index of parent object in the objects list.
  int32 parent_index = 102;

  // Object name.
  string name = 2;

  // Object type.
  ObjectType type = 3;

  // Android class of the object, e.g., android.widget.LinearLayout.
  string android_class = 4;

  // Android package of the object, e.g., com.google.android.gms.
  string android_package = 5;

  // Text from content-desc, text and resource-id attribute.
  string text = 6;
  string content_desc = 7;
  string resource_id = 8;

  // Boolean attribuets.
  bool clickable = 9;
  bool visible = 10;
  bool enabled = 11;
  bool focusable = 12;
  bool focused = 13;
  bool scrollable = 14;
  bool long_clickable = 15;
  bool selected = 16;
  bool checkable = 17;
  bool checked = 18;

  // Bounding box of the object.
  BoundingBox bbox = 19;

  // Multiple types of the object based on its ancestors.
  repeated ObjectType multi_types = 20;

  // Below are computed attributes from view hierarchy.
  // Grid location of the object.
  GridLocation grid_location = 30;

  // Dom position of the object.
  DomPosition dom_position = 31;

  // Whether it's a leaf node.
  bool is_leaf = 32;

  // Whether it's an actionable object for RL policy.
  bool is_actionable = 33;

  string text_hint = 34;
}

// A bounding box on the screen.
message BoundingBox {
  int32 left = 1;
  int32 right = 2;
  int32 top = 3;
  int32 bottom = 4;
}

// Dom position of the object.
message DomPosition {
  int32 depth = 1;
  int32 pre_order_id = 2;
  int32 post_order_id = 3;
}