feat: added API gateway

internal/gw/grpc_client/review_client.go

@@ -0,0 +1,81 @@
+package grpc_client
+
+import (
+	"context"
+	"fmt"
+
+	pb "datarush/pkg/api/review"
+
+	"google.golang.org/grpc"
+)
+
+type ReviewClient struct {
+	client pb.ReviewServiceClient
+	conn   *grpc.ClientConn
+}
+
+func NewReviewClient(ctx context.Context, address string, factory *ClientFactory) (*ReviewClient, error) {
+	conn, err := factory.GetConnection(ctx, address)
+	if err != nil {
+		return nil, fmt.Errorf("failed to create review client: %w", err)
+	}
+	return &ReviewClient{client: pb.NewReviewServiceClient(conn), conn: conn}, nil
+}
+
+func (c *ReviewClient) ValidateReviewToken(ctx context.Context, token string) (*pb.ValidateReviewTokenResponse, error) {
+	req := &pb.ValidateReviewTokenRequest{Token: token}
+	resp, err := c.client.ValidateReviewToken(ctx, req)
+	if err != nil {
+		return nil, fmt.Errorf("validate review token failed: %w", err)
+	}
+	return resp, nil
+}
+
+func (c *ReviewClient) ListSubmissionsForReview(
+	ctx context.Context,
+	req *pb.ListSubmissionsForReviewRequest,
+) (*pb.ListSubmissionsForReviewResponse, error) {
+	resp, err := c.client.ListSubmissionsForReview(ctx, req)
+	if err != nil {
+		return nil, fmt.Errorf("list submissions for review failed: %w", err)
+	}
+	return resp, nil
+}
+
+func (c *ReviewClient) GetSubmissionForReview(
+	ctx context.Context,
+	token, submissionID string,
+) (*pb.SubmissionForReview, error) {
+	req := &pb.GetSubmissionForReviewRequest{
+		Token:        token,
+		SubmissionId: submissionID,
+	}
+	resp, err := c.client.GetSubmissionForReview(ctx, req)
+	if err != nil {
+		return nil, fmt.Errorf("get submission for review failed: %w", err)
+	}
+	return resp, nil
+}
+
+func (c *ReviewClient) EvaluateSubmission(
+	ctx context.Context,
+	req *pb.EvaluateSubmissionRequest,
+) (*pb.EvaluateSubmissionResponse, error) {
+	resp, err := c.client.EvaluateSubmission(ctx, req)
+	if err != nil {
+		return nil, fmt.Errorf("evaluate submission failed: %w", err)
+	}
+	return resp, nil
+}
+
+func (c *ReviewClient) ReleaseSubmission(ctx context.Context, token, submissionID string) error {
+	req := &pb.ReleaseSubmissionRequest{
+		Token:        token,
+		SubmissionId: submissionID,
+	}
+	_, err := c.client.ReleaseSubmission(ctx, req)
+	if err != nil {
+		return fmt.Errorf("release submission failed: %w", err)
+	}
+	return nil
+}