// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

edition = "2023";

option optimize_for = LITE_RUNTIME;

package lens;

import "lens_overlay_text.proto";
option features.utf8_validation = NONE;

message DeepGleamData {
  oneof rendering_oneof {
    TranslationData translation = 10;
  }

  repeated string visual_object_id = 11;

  reserved 1, 2, 3, 4, 5, 6, 7, 8, 9, 12;
}

message TranslationData {
  message Status {
    enum Code {
      UNKNOWN = 0;
      SUCCESS = 1;
      SERVER_ERROR = 2;
      UNSUPPORTED_LANGUAGE_PAIR = 3;
      SAME_LANGUAGE = 4;
      UNKNOWN_SOURCE_LANGUAGE = 5;
      INVALID_REQUEST = 6;
      DEADLINE_EXCEEDED = 7;
      EMPTY_TRANSLATION = 8;
      NO_OP_TRANSLATION = 9;
    }

    Code code = 1;
  }

  Status status = 1;
  string target_language = 2;

  string source_language = 3;

  // The translated text.
  string translation = 4;

  // Style as the aggregation of the styles of the words in the original text.
  message TextStyle {
    // The foreground color of text in aRGB format.
    uint32 text_color = 1;

    // The background color of text in aRGB format.
    uint32 background_primary_color = 2;

    reserved 3, 4;
  }

  // Properties of the image used to inpaint the source text.
  message BackgroundImageData {
    // Image bytes to inpaint the source text. Contains image bytes in the
    // format specified in file_format.
    bytes background_image = 1;

    // Width of background_image in pixels.
    int32 image_width = 2;

    // Height of background_image in pixels.
    int32 image_height = 3;

    // Vertical padding to apply to the text box before drawing the background
    // image. Expressed as a fraction of the text box height, i.e. 1.0 means
    // that the height should be doubled. Half of the padding should be added on
    // the top and half on the bottom.
    float vertical_padding = 4;

    // Horizontal padding to apply to the text box before drawing the background
    // image. Expressed as a fraction of the text box height. Half of the
    // padding should be added on the left and half on the right.
    float horizontal_padding = 5;

    // File format of the bytes in background_image.
    enum FileFormat {
      UNKNOWN = 0;
      RAW_BYTES_RGBA = 1;
      PNG_RGBA = 2;
      WEBP_RGBA = 3;
      JPEG_RGB_PNG_MASK = 4;
    }

    FileFormat file_format = 6;

    // Text mask for the generated background image.
    bytes text_mask = 7;
  }

  message Line {
    // A substring from the translation from start to end (exclusive),
    // that needs to be distributed on this line, measured in Unicode
    // characters. If not set, the Line doesn't have any translation.
    int32 start = 1;
    int32 end = 2;

    message Word {
      // A substring from the translation from start to end (exclusive),
      // representing a word (without separator), measured in Unicode
      // characters.
      int32 start = 1;
      int32 end = 2;
    }

    TextStyle style = 3;
    repeated Word word = 5;

    // Background image data is set only when inpainting is computed.
    BackgroundImageData background_image_data = 9;

    reserved 4, 6, 7, 8;
  }

  repeated Line line = 5;

  // The original writing direction of the source text.
  WritingDirection writing_direction = 7;
  Alignment alignment = 8;

  // Whether the text is justified.
  bool justified = 9;

  reserved 6;
}