// Copyright 2018 Google Inc.
//
// 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.bigquery.datatransfer.v1;

import "google/api/annotations.proto";
import "google/cloud/bigquery/datatransfer/v1/transfer.proto";
import "google/protobuf/duration.proto";
import "google/protobuf/empty.proto";
import "google/protobuf/field_mask.proto";
import "google/protobuf/timestamp.proto";
import "google/protobuf/wrappers.proto";

option csharp_namespace = "Google.Cloud.BigQuery.DataTransfer.V1";
option go_package = "google.golang.org/genproto/googleapis/cloud/bigquery/datatransfer/v1;datatransfer";
option java_multiple_files = true;
option java_outer_classname = "DataTransferProto";
option java_package = "com.google.cloud.bigquery.datatransfer.v1";
option php_namespace = "Google\\Cloud\\BigQuery\\DataTransfer\\V1";

// The Google BigQuery Data Transfer Service API enables BigQuery users to
// configure the transfer of their data from other Google Products into
// BigQuery. This service contains methods that are end user exposed. It backs
// up the frontend.
service DataTransferService {
  // Retrieves a supported data source and returns its settings,
  // which can be used for UI rendering.
  rpc GetDataSource(GetDataSourceRequest) returns (DataSource) {
    option (google.api.http) = {
      get: "/v1/{name=projects/*/locations/*/dataSources/*}"
      additional_bindings { get: "/v1/{name=projects/*/dataSources/*}" }
    };
  }

  // Lists supported data sources and returns their settings,
  // which can be used for UI rendering.
  rpc ListDataSources(ListDataSourcesRequest)
      returns (ListDataSourcesResponse) {
    option (google.api.http) = {
      get: "/v1/{parent=projects/*/locations/*}/dataSources"
      additional_bindings { get: "/v1/{parent=projects/*}/dataSources" }
    };
  }

  // Creates a new data transfer configuration.
  rpc CreateTransferConfig(CreateTransferConfigRequest)
      returns (TransferConfig) {
    option (google.api.http) = {
      post: "/v1/{parent=projects/*/locations/*}/transferConfigs"
      body: "transfer_config"
      additional_bindings {
        post: "/v1/{parent=projects/*}/transferConfigs"
        body: "transfer_config"
      }
    };
  }

  // Updates a data transfer configuration.
  // All fields must be set, even if they are not updated.
  rpc UpdateTransferConfig(UpdateTransferConfigRequest)
      returns (TransferConfig) {
    option (google.api.http) = {
      patch: "/v1/{transfer_config.name=projects/*/locations/*/transferConfigs/*}"
      body: "transfer_config"
      additional_bindings {
        patch: "/v1/{transfer_config.name=projects/*/transferConfigs/*}"
        body: "transfer_config"
      }
    };
  }

  // Deletes a data transfer configuration,
  // including any associated transfer runs and logs.
  rpc DeleteTransferConfig(DeleteTransferConfigRequest)
      returns (google.protobuf.Empty) {
    option (google.api.http) = {
      delete: "/v1/{name=projects/*/locations/*/transferConfigs/*}"
      additional_bindings { delete: "/v1/{name=projects/*/transferConfigs/*}" }
    };
  }

  // Returns information about a data transfer config.
  rpc GetTransferConfig(GetTransferConfigRequest) returns (TransferConfig) {
    option (google.api.http) = {
      get: "/v1/{name=projects/*/locations/*/transferConfigs/*}"
      additional_bindings { get: "/v1/{name=projects/*/transferConfigs/*}" }
    };
  }

  // Returns information about all data transfers in the project.
  rpc ListTransferConfigs(ListTransferConfigsRequest)
      returns (ListTransferConfigsResponse) {
    option (google.api.http) = {
      get: "/v1/{parent=projects/*/locations/*}/transferConfigs"
      additional_bindings { get: "/v1/{parent=projects/*}/transferConfigs" }
    };
  }

  // Creates transfer runs for a time range [start_time, end_time].
  // For each date - or whatever granularity the data source supports - in the
  // range, one transfer run is created.
  // Note that runs are created per UTC time in the time range.
  rpc ScheduleTransferRuns(ScheduleTransferRunsRequest)
      returns (ScheduleTransferRunsResponse) {
    option (google.api.http) = {
      post: "/v1/{parent=projects/*/locations/*/transferConfigs/*}:scheduleRuns"
      body: "*"
      additional_bindings {
        post: "/v1/{parent=projects/*/transferConfigs/*}:scheduleRuns"
        body: "*"
      }
    };
  }

  // Returns information about the particular transfer run.
  rpc GetTransferRun(GetTransferRunRequest) returns (TransferRun) {
    option (google.api.http) = {
      get: "/v1/{name=projects/*/locations/*/transferConfigs/*/runs/*}"
      additional_bindings {
        get: "/v1/{name=projects/*/transferConfigs/*/runs/*}"
      }
    };
  }

  // Deletes the specified transfer run.
  rpc DeleteTransferRun(DeleteTransferRunRequest)
      returns (google.protobuf.Empty) {
    option (google.api.http) = {
      delete: "/v1/{name=projects/*/locations/*/transferConfigs/*/runs/*}"
      additional_bindings {
        delete: "/v1/{name=projects/*/transferConfigs/*/runs/*}"
      }
    };
  }

  // Returns information about running and completed jobs.
  rpc ListTransferRuns(ListTransferRunsRequest)
      returns (ListTransferRunsResponse) {
    option (google.api.http) = {
      get: "/v1/{parent=projects/*/locations/*/transferConfigs/*}/runs"
      additional_bindings {
        get: "/v1/{parent=projects/*/transferConfigs/*}/runs"
      }
    };
  }

  // Returns user facing log messages for the data transfer run.
  rpc ListTransferLogs(ListTransferLogsRequest)
      returns (ListTransferLogsResponse) {
    option (google.api.http) = {
      get: "/v1/{parent=projects/*/locations/*/transferConfigs/*/runs/*}/transferLogs"
      additional_bindings {
        get: "/v1/{parent=projects/*/transferConfigs/*/runs/*}/transferLogs"
      }
    };
  }

  // Returns true if valid credentials exist for the given data source and
  // requesting user.
  // Some data sources doesn't support service account, so we need to talk to
  // them on behalf of the end user. This API just checks whether we have OAuth
  // token for the particular user, which is a pre-requisite before user can
  // create a transfer config.
  rpc CheckValidCreds(CheckValidCredsRequest)
      returns (CheckValidCredsResponse) {
    option (google.api.http) = {
      post: "/v1/{name=projects/*/locations/*/dataSources/*}:checkValidCreds"
      body: "*"
      additional_bindings {
        post: "/v1/{name=projects/*/dataSources/*}:checkValidCreds"
        body: "*"
      }
    };
  }
}

// Represents a data source parameter with validation rules, so that
// parameters can be rendered in the UI. These parameters are given to us by
// supported data sources, and include all needed information for rendering
// and validation.
// Thus, whoever uses this api can decide to generate either generic ui,
// or custom data source specific forms.
message DataSourceParameter {
  // Parameter type.
  enum Type {
    // Type unspecified.
    TYPE_UNSPECIFIED = 0;

    // String parameter.
    STRING = 1;

    // Integer parameter (64-bits).
    // Will be serialized to json as string.
    INTEGER = 2;

    // Double precision floating point parameter.
    DOUBLE = 3;

    // Boolean parameter.
    BOOLEAN = 4;

    // Record parameter.
    RECORD = 5;

    // Page ID for a Google+ Page.
    PLUS_PAGE = 6;
  }

  // Parameter identifier.
  string param_id = 1;

  // Parameter display name in the user interface.
  string display_name = 2;

  // Parameter description.
  string description = 3;

  // Parameter type.
  Type type = 4;

  // Is parameter required.
  bool required = 5;

  // Can parameter have multiple values.
  bool repeated = 6;

  // Regular expression which can be used for parameter validation.
  string validation_regex = 7;

  // All possible values for the parameter.
  repeated string allowed_values = 8;

  // For integer and double values specifies minimum allowed value.
  google.protobuf.DoubleValue min_value = 9;

  // For integer and double values specifies maxminum allowed value.
  google.protobuf.DoubleValue max_value = 10;

  // When parameter is a record, describes child fields.
  repeated DataSourceParameter fields = 11;

  // Description of the requirements for this field, in case the user input does
  // not fulfill the regex pattern or min/max values.
  string validation_description = 12;

  // URL to a help document to further explain the naming requirements.
  string validation_help_url = 13;

  // Cannot be changed after initial creation.
  bool immutable = 14;

  // If set to true, schema should be taken from the parent with the same
  // parameter_id. Only applicable when parameter type is RECORD.
  bool recurse = 15;
}

// Represents data source metadata. Metadata is sufficient to
// render UI and request proper OAuth tokens.
message DataSource {
  // The type of authorization needed for this data source.
  enum AuthorizationType {
    // Type unspecified.
    AUTHORIZATION_TYPE_UNSPECIFIED = 0;

    // Use OAuth 2 authorization codes that can be exchanged
    // for a refresh token on the backend.
    AUTHORIZATION_CODE = 1;

    // Return an authorization code for a given Google+ page that can then be
    // exchanged for a refresh token on the backend.
    GOOGLE_PLUS_AUTHORIZATION_CODE = 2;
  }

  // Represents how the data source supports data auto refresh.
  enum DataRefreshType {
    // The data source won't support data auto refresh, which is default value.
    DATA_REFRESH_TYPE_UNSPECIFIED = 0;

    // The data source supports data auto refresh, and runs will be scheduled
    // for the past few days. Does not allow custom values to be set for each
    // transfer config.
    SLIDING_WINDOW = 1;

    // The data source supports data auto refresh, and runs will be scheduled
    // for the past few days. Allows custom values to be set for each transfer
    // config.
    CUSTOM_SLIDING_WINDOW = 2;
  }

  // Output only. Data source resource name.
  string name = 1;

  // Data source id.
  string data_source_id = 2;

  // User friendly data source name.
  string display_name = 3;

  // User friendly data source description string.
  string description = 4;

  // Data source client id which should be used to receive refresh token.
  // When not supplied, no offline credentials are populated for data transfer.
  string client_id = 5;

  // Api auth scopes for which refresh token needs to be obtained. Only valid
  // when `client_id` is specified. Ignored otherwise. These are scopes needed
  // by a data source to prepare data and ingest them into BigQuery,
  // e.g., https://www.googleapis.com/auth/bigquery
  repeated string scopes = 6;

  // Deprecated. This field has no effect.
  TransferType transfer_type = 7;

  // Indicates whether the data source supports multiple transfers
  // to different BigQuery targets.
  bool supports_multiple_transfers = 8;

  // The number of seconds to wait for an update from the data source
  // before BigQuery marks the transfer as failed.
  int32 update_deadline_seconds = 9;

  // Default data transfer schedule.
  // Examples of valid schedules include:
  // `1st,3rd monday of month 15:30`,
  // `every wed,fri of jan,jun 13:15`, and
  // `first sunday of quarter 00:00`.
  string default_schedule = 10;

  // Specifies whether the data source supports a user defined schedule, or
  // operates on the default schedule.
  // When set to `true`, user can override default schedule.
  bool supports_custom_schedule = 11;

  // Data source parameters.
  repeated DataSourceParameter parameters = 12;

  // Url for the help document for this data source.
  string help_url = 13;

  // Indicates the type of authorization.
  AuthorizationType authorization_type = 14;

  // Specifies whether the data source supports automatic data refresh for the
  // past few days, and how it's supported.
  // For some data sources, data might not be complete until a few days later,
  // so it's useful to refresh data automatically.
  DataRefreshType data_refresh_type = 15;

  // Default data refresh window on days.
  // Only meaningful when `data_refresh_type` = `SLIDING_WINDOW`.
  int32 default_data_refresh_window_days = 16;

  // Disables backfilling and manual run scheduling
  // for the data source.
  bool manual_runs_disabled = 17;

  // The minimum interval for scheduler to schedule runs.
  google.protobuf.Duration minimum_schedule_interval = 18;
}

// A request to get data source info.
message GetDataSourceRequest {
  // The field will contain name of the resource requested, for example:
  // `projects/{project_id}/dataSources/{data_source_id}`
  string name = 1;
}

// Request to list supported data sources and their data transfer settings.
message ListDataSourcesRequest {
  // The BigQuery project id for which data sources should be returned.
  // Must be in the form: `projects/{project_id}`
  string parent = 1;

  // Pagination token, which can be used to request a specific page
  // of `ListDataSourcesRequest` list results. For multiple-page
  // results, `ListDataSourcesResponse` outputs
  // a `next_page` token, which can be used as the
  // `page_token` value to request the next page of list results.
  string page_token = 3;

  // Page size. The default page size is the maximum value of 1000 results.
  int32 page_size = 4;
}

// Returns list of supported data sources and their metadata.
message ListDataSourcesResponse {
  // List of supported data sources and their transfer settings.
  repeated DataSource data_sources = 1;

  // Output only. The next-pagination token. For multiple-page list results,
  // this token can be used as the
  // `ListDataSourcesRequest.page_token`
  // to request the next page of list results.
  string next_page_token = 2;
}

// A request to create a data transfer configuration. If new credentials are
// needed for this transfer configuration, an authorization code must be
// provided. If an authorization code is provided, the transfer configuration
// will be associated with the user id corresponding to the
// authorization code. Otherwise, the transfer configuration will be associated
// with the calling user.
message CreateTransferConfigRequest {
  // The BigQuery project id where the transfer configuration should be created.
  // Must be in the format /projects/{project_id}/locations/{location_id}
  // If specified location and location of the destination bigquery dataset
  // do not match - the request will fail.
  string parent = 1;

  // Data transfer configuration to create.
  TransferConfig transfer_config = 2;

  // Optional OAuth2 authorization code to use with this transfer configuration.
  // This is required if new credentials are needed, as indicated by
  // `CheckValidCreds`.
  // In order to obtain authorization_code, please make a
  // request to
  // https://www.gstatic.com/bigquerydatatransfer/oauthz/auth?client_id=<datatransferapiclientid>&scope=<data_source_scopes>&redirect_uri=<redirect_uri>
  //
  // * client_id should be OAuth client_id of BigQuery DTS API for the given
  //   data source returned by ListDataSources method.
  // * data_source_scopes are the scopes returned by ListDataSources method.
  // * redirect_uri is an optional parameter. If not specified, then
  //   authorization code is posted to the opener of authorization flow window.
  //   Otherwise it will be sent to the redirect uri. A special value of
  //   urn:ietf:wg:oauth:2.0:oob means that authorization code should be
  //   returned in the title bar of the browser, with the page text prompting
  //   the user to copy the code and paste it in the application.
  string authorization_code = 3;
}

// A request to update a transfer configuration. To update the user id of the
// transfer configuration, an authorization code needs to be provided.
message UpdateTransferConfigRequest {
  // Data transfer configuration to create.
  TransferConfig transfer_config = 1;

  // Optional OAuth2 authorization code to use with this transfer configuration.
  // If it is provided, the transfer configuration will be associated with the
  // authorizing user.
  // In order to obtain authorization_code, please make a
  // request to
  // https://www.gstatic.com/bigquerydatatransfer/oauthz/auth?client_id=<datatransferapiclientid>&scope=<data_source_scopes>&redirect_uri=<redirect_uri>
  //
  // * client_id should be OAuth client_id of BigQuery DTS API for the given
  //   data source returned by ListDataSources method.
  // * data_source_scopes are the scopes returned by ListDataSources method.
  // * redirect_uri is an optional parameter. If not specified, then
  //   authorization code is posted to the opener of authorization flow window.
  //   Otherwise it will be sent to the redirect uri. A special value of
  //   urn:ietf:wg:oauth:2.0:oob means that authorization code should be
  //   returned in the title bar of the browser, with the page text prompting
  //   the user to copy the code and paste it in the application.
  string authorization_code = 3;

  // Required list of fields to be updated in this request.
  google.protobuf.FieldMask update_mask = 4;
}

// A request to get data transfer information.
message GetTransferConfigRequest {
  // The field will contain name of the resource requested, for example:
  // `projects/{project_id}/transferConfigs/{config_id}`
  string name = 1;
}

// A request to delete data transfer information. All associated transfer runs
// and log messages will be deleted as well.
message DeleteTransferConfigRequest {
  // The field will contain name of the resource requested, for example:
  // `projects/{project_id}/transferConfigs/{config_id}`
  string name = 1;
}

// A request to get data transfer run information.
message GetTransferRunRequest {
  // The field will contain name of the resource requested, for example:
  // `projects/{project_id}/transferConfigs/{config_id}/runs/{run_id}`
  string name = 1;
}

// A request to delete data transfer run information.
message DeleteTransferRunRequest {
  // The field will contain name of the resource requested, for example:
  // `projects/{project_id}/transferConfigs/{config_id}/runs/{run_id}`
  string name = 1;
}

// A request to list data transfers configured for a BigQuery project.
message ListTransferConfigsRequest {
  // The BigQuery project id for which data sources
  // should be returned: `projects/{project_id}`.
  string parent = 1;

  // When specified, only configurations of requested data sources are returned.
  repeated string data_source_ids = 2;

  // Pagination token, which can be used to request a specific page
  // of `ListTransfersRequest` list results. For multiple-page
  // results, `ListTransfersResponse` outputs
  // a `next_page` token, which can be used as the
  // `page_token` value to request the next page of list results.
  string page_token = 3;

  // Page size. The default page size is the maximum value of 1000 results.
  int32 page_size = 4;
}

// The returned list of pipelines in the project.
message ListTransferConfigsResponse {
  // Output only. The stored pipeline transfer configurations.
  repeated TransferConfig transfer_configs = 1;

  // Output only. The next-pagination token. For multiple-page list results,
  // this token can be used as the
  // `ListTransferConfigsRequest.page_token`
  // to request the next page of list results.
  string next_page_token = 2;
}

// A request to list data transfer runs. UI can use this method to show/filter
// specific data transfer runs. The data source can use this method to request
// all scheduled transfer runs.
message ListTransferRunsRequest {
  // Represents which runs should be pulled.
  enum RunAttempt {
    // All runs should be returned.
    RUN_ATTEMPT_UNSPECIFIED = 0;

    // Only latest run per day should be returned.
    LATEST = 1;
  }

  // Name of transfer configuration for which transfer runs should be retrieved.
  // Format of transfer configuration resource name is:
  // `projects/{project_id}/transferConfigs/{config_id}`.
  string parent = 1;

  // When specified, only transfer runs with requested states are returned.
  repeated TransferState states = 2;

  // Pagination token, which can be used to request a specific page
  // of `ListTransferRunsRequest` list results. For multiple-page
  // results, `ListTransferRunsResponse` outputs
  // a `next_page` token, which can be used as the
  // `page_token` value to request the next page of list results.
  string page_token = 3;

  // Page size. The default page size is the maximum value of 1000 results.
  int32 page_size = 4;

  // Indicates how run attempts are to be pulled.
  RunAttempt run_attempt = 5;
}

// The returned list of pipelines in the project.
message ListTransferRunsResponse {
  // Output only. The stored pipeline transfer runs.
  repeated TransferRun transfer_runs = 1;

  // Output only. The next-pagination token. For multiple-page list results,
  // this token can be used as the
  // `ListTransferRunsRequest.page_token`
  // to request the next page of list results.
  string next_page_token = 2;
}

// A request to get user facing log messages associated with data transfer run.
message ListTransferLogsRequest {
  // Transfer run name in the form:
  // `projects/{project_id}/transferConfigs/{config_Id}/runs/{run_id}`.
  string parent = 1;

  // Pagination token, which can be used to request a specific page
  // of `ListTransferLogsRequest` list results. For multiple-page
  // results, `ListTransferLogsResponse` outputs
  // a `next_page` token, which can be used as the
  // `page_token` value to request the next page of list results.
  string page_token = 4;

  // Page size. The default page size is the maximum value of 1000 results.
  int32 page_size = 5;

  // Message types to return. If not populated - INFO, WARNING and ERROR
  // messages are returned.
  repeated TransferMessage.MessageSeverity message_types = 6;
}

// The returned list transfer run messages.
message ListTransferLogsResponse {
  // Output only. The stored pipeline transfer messages.
  repeated TransferMessage transfer_messages = 1;

  // Output only. The next-pagination token. For multiple-page list results,
  // this token can be used as the
  // `GetTransferRunLogRequest.page_token`
  // to request the next page of list results.
  string next_page_token = 2;
}

// A request to determine whether the user has valid credentials. This method
// is used to limit the number of OAuth popups in the user interface. The
// user id is inferred from the API call context.
// If the data source has the Google+ authorization type, this method
// returns false, as it cannot be determined whether the credentials are
// already valid merely based on the user id.
message CheckValidCredsRequest {
  // The data source in the form:
  // `projects/{project_id}/dataSources/{data_source_id}`
  string name = 1;
}

// A response indicating whether the credentials exist and are valid.
message CheckValidCredsResponse {
  // If set to `true`, the credentials exist and are valid.
  bool has_valid_creds = 1;
}

// A request to schedule transfer runs for a time range.
message ScheduleTransferRunsRequest {
  // Transfer configuration name in the form:
  // `projects/{project_id}/transferConfigs/{config_id}`.
  string parent = 1;

  // Start time of the range of transfer runs. For example,
  // `"2017-05-25T00:00:00+00:00"`.
  google.protobuf.Timestamp start_time = 2;

  // End time of the range of transfer runs. For example,
  // `"2017-05-30T00:00:00+00:00"`.
  google.protobuf.Timestamp end_time = 3;
}

// A response to schedule transfer runs for a time range.
message ScheduleTransferRunsResponse {
  // The transfer runs that were scheduled.
  repeated TransferRun runs = 1;
}
