// Copyright 2018 Google LLC.
//
// 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 google.cloud.datalabeling.v1beta1;

import "google/cloud/datalabeling/v1beta1/dataset.proto";
import "google/protobuf/timestamp.proto";
import "google/api/annotations.proto";

option go_package = "google.golang.org/genproto/googleapis/cloud/datalabeling/v1beta1;datalabeling";
option java_multiple_files = true;
option java_package = "com.google.cloud.datalabeling.v1beta1";


// Instruction of how to perform the labeling task for human operators.
// Currently two types of instruction are supported - CSV file and PDF.
// One of the two types instruction must be provided.
// CSV file is only supported for image classification task. Instructions for
// other task should be provided as PDF.
// For image classification, CSV and PDF can be provided at the same time.
message Instruction {
  // Output only. Instruction resource name, format:
  // projects/{project_id}/instructions/{instruction_id}
  string name = 1;

  // Required. The display name of the instruction. Maximum of 64 characters.
  string display_name = 2;

  // Optional. User-provided description of the instruction.
  // The description can be up to 10000 characters long.
  string description = 3;

  // Output only. Creation time of instruction.
  google.protobuf.Timestamp create_time = 4;

  // Output only. Last update time of instruction.
  google.protobuf.Timestamp update_time = 5;

  // Required. The data type of this instruction.
  DataType data_type = 6;

  // One of CSV and PDF instruction is required.
  // Instruction from a csv file, such as for classification task.
  // Csv file should have exact two columns, in the format of:
  // The first column is labeled data, such as image reference, text.
  // The second column is comma separated labels associated with data.
  CsvInstruction csv_instruction = 7;

  // One of CSV and PDF instruction is required.
  // Instruction from a PDF doc. The PDF doc should be in GCS bucket.
  PdfInstruction pdf_instruction = 9;
}

// Instruction from a CSV file.
message CsvInstruction {
  // CSV file for the instruction. Only gcs path is allowed.
  string gcs_file_uri = 1;
}

// Instruction from a PDF file.
message PdfInstruction {
  // PDF file for the instruction. Only gcs path is allowed.
  string gcs_file_uri = 1;
}