syntax = "proto3";

package discount;

import "google/api/annotations.proto";
import "google/protobuf/timestamp.proto";
import "google/protobuf/empty.proto";
import "discount/discount.model.proto";

option go_package = "./discount";

service DiscountService {
  rpc GetAllDiscounts(google.protobuf.Empty) returns (Discounts) {
    option (google.api.http) = {
      get: "/discount/all"
    };
  }

  rpc GetUserDiscounts(GetDiscountByIDRequest) returns (Discounts) {
    option (google.api.http) = {
      get: "/discount/user/{ID}"
    };
  }

  rpc DetermineDiscounts(ApplyDiscountRequest) returns (Discounts) {
    option (google.api.http) = {
      post: "/discount/determine"
      body: "*"
    };
  }

  rpc ApplyDiscounts(ApplyDiscountRequest) returns (ApplyDiscountResponse) {
    option (google.api.http) = {
      post: "/discount/apply"
      body: "*"
    };
  }

  rpc GetDiscountByID(GetDiscountByIDRequest) returns (Discount) {
    option (google.api.http) = {
      get: "/discount/{ID}"
    };
  }

  rpc CreateDiscount(CreateDiscountRequest) returns (Discount) {
    option (google.api.http) = {
      post: "/discount"
    };
  }

  rpc ReplaceDiscount(DiscountOptional) returns (Discount) {
    option (google.api.http) = {
      put: "/discount/{ID}"
      body: "*"
    };
  }

  rpc UpdateDiscount(DiscountOptional) returns (Discount) {
    option (google.api.http) = {
      patch: "/discount/{ID}"
      body: "*"
    };
  }

  rpc DeleteDiscount(GetDiscountByIDRequest) returns (Discount) {
    option (google.api.http) = {
      delete: "/discount/{ID}"
    };
  }
}

message GetDiscountByIDRequest {
  string ID = 1;
}

message ApplyDiscountRequest {
  UserInformation UserInformation = 1;
  repeated ProductInformation Products = 2;
  google.protobuf.Timestamp Date = 3;
  optional string Coupon = 4;
}

message ApplyDiscountResponse {
  double Price = 1;
  repeated Discount AppliedDiscounts = 2;
}

message CreateDiscountRequest {
	string Name = 1;
	uint32 Layer = 2;
	string Description = 3;
	DiscountCondition Condition = 4;
	DiscountCalculationTarget Target = 5;
}