syntax = "proto3";

package api.v1;

option go_package = "github.com/henvic/pgxtutorial/internal/apiv1/apipb";
option java_multiple_files = true;
option java_outer_classname = "APIProto";
option java_package = "api.v1";

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

// Inventory gRPC API service.
service Inventory {
  // ListProducts returns a list of products.
  rpc ListProducts (ListProductsRequest) returns (ListProductsResponse) {
    option (google.api.http) = {
      get: "/v1/products"
    };
  }

  // SearchProducts returns a search of products.
  rpc SearchProducts (SearchProductsRequest) returns (SearchProductsResponse) {
    option (google.api.http) = {
      post: "/v1/products:search",
      body: "*"
    };
  }
  
  // CreateProduct creates a product in the inventory.
  rpc CreateProduct (CreateProductRequest) returns (Product) {
    option (google.api.method_signature) = "product";
    option (google.api.http) = {
      post: "/v1/products"
      body: "product"
    };
  }
  
  // UpdateProduct updates an inventory product.
  rpc UpdateProduct (UpdateProductRequest) returns (Product) {
    option (google.api.method_signature) = "product,update_mask";
    option (google.api.http) = {
      patch: "/v1/products/{product.name=products/*}",
      body: "product"
    };
  }
  
  // DeleteProduct from the inventory.
  rpc DeleteProduct (DeleteProductRequest) returns (google.protobuf.Empty) {
    option (google.api.method_signature) = "name";
    option (google.api.http) = {
      delete: "/v1/products/{name=products/*}"
    };
  }
  
  // GetProduct from the inventory.
  rpc GetProduct (GetProductRequest) returns (Product) {
    option (google.api.method_signature) = "name";
    option (google.api.http) = {
      get: "/v1/products/{name=products/*}"
    };
  }

  // ListProductReview returns a list of products reviews.
  rpc ListProductsReviews (ListProductsReviewsRequest) returns (ListProductsReviewsResponse) {
    option (google.api.method_signature) = "parent";
    option (google.api.http) = {
      get: "/v1/{parent=products/*}/reviews"
    };
  }

  // CreateProductReview creates a product review.
  rpc CreateProductReview (CreateProductReviewRequest) returns (ProductReview) {
    option (google.api.method_signature) = "parent,product_review,product_review_id";
    option (google.api.http) = {
      post: "/v1/{parent=products/*}/reviews"
      body: "product_review"
    };
  }
  
  // UpdateProductReview updates a product review.
  rpc UpdateProductReview (UpdateProductReviewRequest) returns (ProductReview) {
    option (google.api.method_signature) = "product_review,update_mask";
    option (google.api.http) = {
    patch: "/v1/{product_review.name=products/*/reviews/*}",
      body: "product_review"
    };
  }
  
  // DeleteProductReview deletes a product review.
  rpc DeleteProductReview (DeleteProductReviewRequest) returns (google.protobuf.Empty) {
    option (google.api.method_signature) = "name";
    option (google.api.http) = {
    delete: "/v1/{name=products/*/reviews/*}"
    };
  }

  // GetProductReview returns a product review.
  rpc GetProductReview (GetProductReviewRequest) returns (ProductReview) {
    option (google.api.method_signature) = "name";
    option (google.api.http) = {
    get: "/v1/products/{name=products/*/reviews/*}"
    };
  }
}

// Product message.
message Product {
  option (google.api.resource) = {
    type: "inventory.pgxtutorial/Product"
    pattern: "products/{product}"
    plural: "products"
    singular: "product"
  };
  // Name.
  string name = 3 [(google.api.field_behavior) = IDENTIFIER];
  // Product ID.
  string product_id = 1 [(google.api.field_behavior) = OUTPUT_ONLY];
  // Price.
  int64 price = 2 [(google.api.field_behavior) = REQUIRED];
  // Description.
  string description = 4 [(google.api.field_behavior) = REQUIRED];
  // Created timestamp.
  string created = 5 [(google.api.field_behavior) = OUTPUT_ONLY];
  // Modified timestamp.
  string modified = 6 [(google.api.field_behavior) = OUTPUT_ONLY];
}

// ListProductsRequest message.
message ListProductsRequest {
  // page_size is the number of products to return.
  int32 page_size = 1 [(google.api.field_behavior) = OPTIONAL];
  // page_token is the next page token.
  string page_token = 2 [(google.api.field_behavior) = OPTIONAL];
}

// ListProductsResponse message.
message ListProductsResponse {
  // Products.
  repeated Product products = 1;
  // Next page token.
  string next_page_token = 2;
}

// SearchProductsRequest message.
message SearchProductsRequest {
  // page_size is the number of products to return.
  int32 page_size = 1 [(google.api.field_behavior) = OPTIONAL];
  // page_token is the next page token.
  string page_token = 2 [(google.api.field_behavior) = OPTIONAL];
  // query_string is the search query.
  string query_string = 3 [(google.api.field_behavior) = REQUIRED];
  // min_price is the minimum price.
  optional int64 min_price = 4 [(google.api.field_behavior) = OPTIONAL];
  // max_price is the maximum price.
  optional int64 max_price = 5 [(google.api.field_behavior) = OPTIONAL];
}

// SearchProductsResponse message.
message SearchProductsResponse {
  // Products.
  repeated Product products = 1;
  // Next page token.
  string next_page_token = 2;
  // Total number of products.
  int32 total = 3;
}

// CreateProductRequest message.
// (-- api-linter: core::0133::request-id-field=disabled
//     aip.dev/not-precedent: Product already contain ID. --)
message CreateProductRequest {
  // Product content.
  Product product = 2 [(google.api.field_behavior) = REQUIRED];
}

// UpdateProductRequest message.
message UpdateProductRequest {
  // Product content.
  Product product = 1 [(google.api.field_behavior) = REQUIRED];
  // Update mask.
  google.protobuf.FieldMask update_mask = 2 [(google.api.field_behavior) = OPTIONAL];
}

// DeleteProductRequest message.
message DeleteProductRequest {
  // Name of the product.
  string name = 1 [
      (google.api.field_behavior) = REQUIRED,
      (google.api.resource_reference).type = "inventory.pgxtutorial/Product"
    ];

    // Force delete even if there are existing product requests.
    bool force = 2 [(google.api.field_behavior) = OPTIONAL];
}

// GetProductRequest message.
message GetProductRequest {
  // Name of the product.
  string name = 1 [
      (google.api.field_behavior) = REQUIRED,
      (google.api.resource_reference).type = "inventory.pgxtutorial/Product"
    ];
}

// ProductReview message.
message ProductReview {
  option (google.api.resource) = {
    type: "inventory.pgxtutorial/ProductReview"
    pattern: "products/{product}/reviews/{product_review}"
    plural: "productsReviews"
    singular: "productReview"
  };

  // Name.
  string name = 1 [(google.api.field_behavior) = IDENTIFIER];
  // Product Review ID.
  string product_review_id = 2 [(google.api.field_behavior) = OUTPUT_ONLY];
  // Product ID.
  string product_id = 3 [(google.api.field_behavior) = OUTPUT_ONLY];
  // Reviewer ID.
  string reviewer_id = 4 [(google.api.field_behavior) = REQUIRED];
  // Score.
  int32 score = 5 [(google.api.field_behavior) = REQUIRED];
  // Title.
  string title = 6 [(google.api.field_behavior) = REQUIRED];
  // Description.
  string description = 7 [(google.api.field_behavior) = REQUIRED];
  // Created timestamp.
  string created = 8 [(google.api.field_behavior) = OUTPUT_ONLY];
  // Modified timestamp.
  string modified = 9 [(google.api.field_behavior) = OUTPUT_ONLY];
}

// ListProductsReviewsRequest message.
message ListProductsReviewsRequest {
  // Parent product ID.
  string parent = 1 [
      (google.api.field_behavior) = REQUIRED,
      (google.api.resource_reference).type = "inventory.pgxtutorial/Product"
    ];

  // page_size is the number of products reviews to return.
  int32 page_size = 2 [(google.api.field_behavior) = OPTIONAL];
  // page_token is the next page token.
  string page_token = 3 [(google.api.field_behavior) = OPTIONAL];
}

// ListProductsReviewsResponse message.
message ListProductsReviewsResponse {
  // Products reviews.
  repeated ProductReview products_reviews = 1;
  // Next page token.
  string next_page_token = 2;
}

// CreateProductReviewRequest message.
message CreateProductReviewRequest {
  // Product ID.
  string parent = 1 [
      (google.api.field_behavior) = REQUIRED,
      (google.api.resource_reference).type = "inventory.pgxtutorial/Product"
    ];
  // Product Review ID.
  string product_review_id = 2 [(google.api.field_behavior) = REQUIRED];
  // Product Review content.
  ProductReview product_review = 3 [(google.api.field_behavior) = REQUIRED];
}

// UpdateProductReviewRequest message.
message UpdateProductReviewRequest {
  // Product content.
  ProductReview product_review = 1 [(google.api.field_behavior) = REQUIRED];
  // Update mask.
  google.protobuf.FieldMask update_mask = 2 [(google.api.field_behavior) = OPTIONAL];
}

// DeleteProductReviewRequest message.
message DeleteProductReviewRequest {
  // Name of the product review.
  string name = 1 [
      (google.api.field_behavior) = REQUIRED,
      (google.api.resource_reference).type = "inventory.pgxtutorial/ProductReview"
    ];

    // Force delete even if there are existing product requests.
    bool force = 2 [(google.api.field_behavior) = OPTIONAL];
}

// GetProductReviewRequest message.
message GetProductReviewRequest {
  // Name of the product review.
  string name = 1 [
      (google.api.field_behavior) = REQUIRED,
      (google.api.resource_reference).type = "inventory.pgxtutorial/ProductReview"
    ];
}