// Copyright 2025 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.kms.inventory.v1;

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

option cc_enable_arenas = true;
option csharp_namespace = "Google.Cloud.Kms.Inventory.V1";
option go_package = "cloud.google.com/go/kms/inventory/apiv1/inventorypb;inventorypb";
option java_multiple_files = true;
option java_outer_classname = "KeyTrackingServiceProto";
option java_package = "com.google.cloud.kms.inventory.v1";
option php_namespace = "Google\\Cloud\\Kms\\Inventory\\V1";

// Returns information about the resources in an org that are protected by a
// given Cloud KMS key via CMEK.
service KeyTrackingService {
  option (google.api.default_host) = "kmsinventory.googleapis.com";
  option (google.api.oauth_scopes) =
      "https://www.googleapis.com/auth/cloud-platform";

  // Returns aggregate information about the resources protected by the given
  // Cloud KMS [CryptoKey][google.cloud.kms.v1.CryptoKey]. Only resources within
  // the same Cloud organization as the key will be returned. The project that
  // holds the key must be part of an organization in order for this call to
  // succeed.
  rpc GetProtectedResourcesSummary(GetProtectedResourcesSummaryRequest)
      returns (ProtectedResourcesSummary) {
    option (google.api.http) = {
      get: "/v1/{name=projects/*/locations/*/keyRings/*/cryptoKeys/**}/protectedResourcesSummary"
    };
    option (google.api.method_signature) = "name";
  }

  // Returns metadata about the resources protected by the given Cloud KMS
  // [CryptoKey][google.cloud.kms.v1.CryptoKey] in the given Cloud organization.
  rpc SearchProtectedResources(SearchProtectedResourcesRequest)
      returns (SearchProtectedResourcesResponse) {
    option (google.api.http) = {
      get: "/v1/{scope=organizations/*}/protectedResources:search"
    };
    option (google.api.method_signature) = "scope, crypto_key";
  }
}

// Request message for
// [KeyTrackingService.GetProtectedResourcesSummary][google.cloud.kms.inventory.v1.KeyTrackingService.GetProtectedResourcesSummary].
message GetProtectedResourcesSummaryRequest {
  // Required. The resource name of the
  // [CryptoKey][google.cloud.kms.v1.CryptoKey].
  string name = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {
      type: "kmsinventory.googleapis.com/ProtectedResourcesSummary"
    }
  ];
}

// Aggregate information about the resources protected by a Cloud KMS key in the
// same Cloud organization as the key.
message ProtectedResourcesSummary {
  option (google.api.resource) = {
    type: "kmsinventory.googleapis.com/ProtectedResourcesSummary"
    pattern: "projects/{project}/locations/{location}/keyRings/{key_ring}/cryptoKeys/{crypto_key}/protectedResourcesSummary"
    pattern: "projects/{project}/locations/{location}/keyRings/{key_ring}/cryptoKeys/{crypto_key}/cryptoKeyVersions/{crypto_key_version}/protectedResourcesSummary"
  };

  // The full name of the ProtectedResourcesSummary resource.
  // Example:
  // projects/test-project/locations/us/keyRings/test-keyring/cryptoKeys/test-key/protectedResourcesSummary
  string name = 5;

  // The total number of protected resources in the same Cloud organization as
  // the key.
  int64 resource_count = 1;

  // The number of distinct Cloud projects in the same Cloud organization as the
  // key that have resources protected by the key.
  int32 project_count = 2;

  // The number of resources protected by the key grouped by resource type.
  map<string, int64> resource_types = 3;

  // The number of resources protected by the key grouped by Cloud product.
  map<string, int64> cloud_products = 6;

  // The number of resources protected by the key grouped by region.
  map<string, int64> locations = 4;
}

// Request message for
// [KeyTrackingService.SearchProtectedResources][google.cloud.kms.inventory.v1.KeyTrackingService.SearchProtectedResources].
message SearchProtectedResourcesRequest {
  // Required. Resource name of the organization.
  // Example: organizations/123
  string scope = 2 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = {
      type: "cloudresourcemanager.googleapis.com/Organization"
    }
  ];

  // Required. The resource name of the
  // [CryptoKey][google.cloud.kms.v1.CryptoKey].
  string crypto_key = 1 [
    (google.api.field_behavior) = REQUIRED,
    (google.api.resource_reference) = { type: "*" }
  ];

  // The maximum number of resources to return. The service may return fewer
  // than this value.
  // If unspecified, at most 500 resources will be returned.
  // The maximum value is 500; values above 500 will be coerced to 500.
  int32 page_size = 3;

  // A page token, received from a previous
  // [KeyTrackingService.SearchProtectedResources][google.cloud.kms.inventory.v1.KeyTrackingService.SearchProtectedResources]
  // call. Provide this to retrieve the subsequent page.
  //
  // When paginating, all other parameters provided to
  // [KeyTrackingService.SearchProtectedResources][google.cloud.kms.inventory.v1.KeyTrackingService.SearchProtectedResources]
  // must match the call that provided the page token.
  string page_token = 4;

  // Optional. A list of resource types that this request searches for. If
  // empty, it will search all the [trackable resource
  // types](https://cloud.google.com/kms/docs/view-key-usage#tracked-resource-types).
  //
  // Regular expressions are also supported. For example:
  //
  // * `compute.googleapis.com.*` snapshots resources whose type starts
  // with `compute.googleapis.com`.
  // * `.*Image` snapshots resources whose type ends with `Image`.
  // * `.*Image.*` snapshots resources whose type contains `Image`.
  //
  // See [RE2](https://github.com/google/re2/wiki/Syntax) for all supported
  // regular expression syntax. If the regular expression does not match any
  // supported resource type, an INVALID_ARGUMENT error will be returned.
  repeated string resource_types = 5 [(google.api.field_behavior) = OPTIONAL];
}

// Response message for
// [KeyTrackingService.SearchProtectedResources][google.cloud.kms.inventory.v1.KeyTrackingService.SearchProtectedResources].
message SearchProtectedResourcesResponse {
  // Protected resources for this page.
  repeated ProtectedResource protected_resources = 1;

  // A token that can be sent as `page_token` to retrieve the next page.
  // If this field is omitted, there are no subsequent pages.
  string next_page_token = 2;
}

// Metadata about a resource protected by a Cloud KMS key.
message ProtectedResource {
  option (google.api.resource) = {
    type: "cloudasset.googleapis.com/Asset"
    pattern: "*"
  };

  // The full resource name of the resource.
  // Example:
  // `//compute.googleapis.com/projects/my_project_123/zones/zone1/instances/instance1`.
  string name = 1;

  // Format: `projects/{PROJECT_NUMBER}`.
  string project = 2;

  // The ID of the project that owns the resource.
  string project_id = 9;

  // The Cloud product that owns the resource.
  // Example: `compute`
  string cloud_product = 8;

  // Example: `compute.googleapis.com/Disk`
  string resource_type = 3;

  // Location can be `global`, regional like `us-east1`, or zonal like
  // `us-west1-b`.
  string location = 4;

  // A key-value pair of the resource's labels (v1) to their values.
  map<string, string> labels = 5;

  // The name of the Cloud KMS
  // [CryptoKeyVersion](https://cloud.google.com/kms/docs/reference/rest/v1/projects.locations.keyRings.cryptoKeys.cryptoKeyVersions?hl=en)
  // used to protect this resource via CMEK. This field is empty if the
  // Google Cloud product owning the resource does not provide key version data
  // to Asset Inventory. If there are multiple key versions protecting the
  // resource, then this is same value as the first element of
  // crypto_key_versions.
  string crypto_key_version = 6 [(google.api.resource_reference) = {
    type: "cloudkms.googleapis.com/CryptoKeyVersion"
  }];

  // The names of the Cloud KMS
  // [CryptoKeyVersion](https://cloud.google.com/kms/docs/reference/rest/v1/projects.locations.keyRings.cryptoKeys.cryptoKeyVersions?hl=en)
  // used to protect this resource via CMEK. This field is empty if the
  // Google Cloud product owning the resource does not provide key versions data
  // to Asset Inventory. The first element of this field is stored in
  // crypto_key_version.
  repeated string crypto_key_versions = 10 [(google.api.resource_reference) = {
    type: "cloudkms.googleapis.com/CryptoKeyVersion"
  }];

  // Output only. The time at which this resource was created. The granularity
  // is in seconds. Timestamp.nanos will always be 0.
  google.protobuf.Timestamp create_time = 7
      [(google.api.field_behavior) = OUTPUT_ONLY];
}
