// Copyright 2023 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.aiplatform.v1;

import "google/api/field_behavior.proto";
import "google/api/resource.proto";
import "google/protobuf/timestamp.proto";

option csharp_namespace = "Google.Cloud.AIPlatform.V1";
option go_package = "cloud.google.com/go/aiplatform/apiv1/aiplatformpb;aiplatformpb";
option java_multiple_files = true;
option java_outer_classname = "FeatureViewProto";
option java_package = "com.google.cloud.aiplatform.v1";
option php_namespace = "Google\\Cloud\\AIPlatform\\V1";
option ruby_package = "Google::Cloud::AIPlatform::V1";

// FeatureView is representation of values that the FeatureOnlineStore will
// serve based on its syncConfig.
message FeatureView {
  option (google.api.resource) = {
    type: "aiplatform.googleapis.com/FeatureView"
    pattern: "projects/{project}/locations/{location}/featureOnlineStores/{feature_online_store}/featureViews/{feature_view}"
  };

  message BigQuerySource {
    // Required. The BigQuery view URI that will be materialized on each sync
    // trigger based on FeatureView.SyncConfig.
    string uri = 1 [(google.api.field_behavior) = REQUIRED];

    // Required. Columns to construct entity_id / row keys. Start by supporting
    // 1 only.
    repeated string entity_id_columns = 2
        [(google.api.field_behavior) = REQUIRED];
  }

  message SyncConfig {
    // Cron schedule (https://en.wikipedia.org/wiki/Cron) to launch scheduled
    // runs. To explicitly set a timezone to the cron tab, apply a prefix in
    // the cron tab: "CRON_TZ=${IANA_TIME_ZONE}" or "TZ=${IANA_TIME_ZONE}".
    // The ${IANA_TIME_ZONE} may only be a valid string from IANA time zone
    // database. For example, "CRON_TZ=America/New_York 1 * * * *", or
    // "TZ=America/New_York 1 * * * *".
    string cron = 1;
  }

  // A Feature Registry source for features that need to be synced to Online
  // Store.
  message FeatureRegistrySource {
    // Features belonging to a single feature group that will be
    // synced to Online Store.
    message FeatureGroup {
      // Required. Identifier of the feature group.
      string feature_group_id = 1 [(google.api.field_behavior) = REQUIRED];

      // Required. Identifiers of features under the feature group.
      repeated string feature_ids = 2 [(google.api.field_behavior) = REQUIRED];
    }

    // Required. List of features that need to be synced to Online Store.
    repeated FeatureGroup feature_groups = 1
        [(google.api.field_behavior) = REQUIRED];
  }

  oneof source {
    // Optional. Configures how data is supposed to be extracted from a BigQuery
    // source to be loaded onto the FeatureOnlineStore.
    BigQuerySource big_query_source = 6
        [(google.api.field_behavior) = OPTIONAL];

    // Optional. Configures the features from a Feature Registry source that
    // need to be loaded onto the FeatureOnlineStore.
    FeatureRegistrySource feature_registry_source = 9
        [(google.api.field_behavior) = OPTIONAL];
  }

  // Output only. Name of the FeatureView. Format:
  // `projects/{project}/locations/{location}/featureOnlineStores/{feature_online_store}/featureViews/{feature_view}`
  string name = 1 [(google.api.field_behavior) = OUTPUT_ONLY];

  // Output only. Timestamp when this FeatureView was created.
  google.protobuf.Timestamp create_time = 2
      [(google.api.field_behavior) = OUTPUT_ONLY];

  // Output only. Timestamp when this FeatureView was last updated.
  google.protobuf.Timestamp update_time = 3
      [(google.api.field_behavior) = OUTPUT_ONLY];

  // Optional. Used to perform consistent read-modify-write updates. If not set,
  // a blind "overwrite" update happens.
  string etag = 4 [(google.api.field_behavior) = OPTIONAL];

  // Optional. The labels with user-defined metadata to organize your
  // FeatureViews.
  //
  // Label keys and values can be no longer than 64 characters
  // (Unicode codepoints), can only contain lowercase letters, numeric
  // characters, underscores and dashes. International characters are allowed.
  //
  // See https://goo.gl/xmQnxf for more information on and examples of labels.
  // No more than 64 user labels can be associated with one
  // FeatureOnlineStore(System labels are excluded)." System reserved label keys
  // are prefixed with "aiplatform.googleapis.com/" and are immutable.
  map<string, string> labels = 5 [(google.api.field_behavior) = OPTIONAL];

  // Configures when data is to be synced/updated for this FeatureView. At the
  // end of the sync the latest featureValues for each entityId of this
  // FeatureView are made ready for online serving.
  SyncConfig sync_config = 7;
}
