Add UpdateApplication to WebApi (#1228)

**What this PR does / why we need it**:

**Which issue(s) this PR fixes**:

Fixes #1219 

**Does this PR introduce a user-facing change?**:
<!--
If no, just write "NONE" in the release-note block below.
-->
```release-note
NONE
```

This PR was merged by Kapetanios.

pkg/app/api/grpcapi/web_api.go

@@ -403,6 +403,50 @@ func (a *WebAPI) AddApplication(ctx context.Context, req *webservice.AddApplicat
 	}, nil
 }
 
+func (a *WebAPI) UpdateApplication(ctx context.Context, req *webservice.UpdateApplicationRequest) (*webservice.UpdateApplicationResponse, error) {
+	claims, err := rpcauth.ExtractClaims(ctx)
+	if err != nil {
+		a.logger.Error("failed to authenticate the current user", zap.Error(err))
+		return nil, err
+	}
+
+	piped, err := getPiped(ctx, a.pipedStore, req.PipedId, a.logger)
+	if err != nil {
+		return nil, err
+	}
+
+	if piped.ProjectId != claims.Role.ProjectId {
+		return nil, status.Error(codes.InvalidArgument, "Requested piped does not belong to your project")
+	}
+
+	gitpath, err := makeGitPath(
+		req.GitPath.Repo.Id,
+		req.GitPath.Path,
+		req.GitPath.ConfigFilename,
+		piped,
+		a.logger,
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	err = a.applicationStore.UpdateApplication(ctx, req.ApplicationId, func(app *model.Application) error {
+		app.Name = req.Name
+		app.EnvId = req.EnvId
+		app.PipedId = req.PipedId
+		app.GitPath = gitpath
+		app.Kind = req.Kind
+		app.CloudProvider = req.CloudProvider
+		return nil
+	})
+	if err != nil {
+		a.logger.Error("failed to update application", zap.Error(err))
+		return nil, status.Error(codes.Internal, "Failed to update application")
+	}
+
+	return &webservice.UpdateApplicationResponse{}, nil
+}
+
 func (a *WebAPI) EnableApplication(ctx context.Context, req *webservice.EnableApplicationRequest) (*webservice.EnableApplicationResponse, error) {
 	if err := a.updateApplicationEnable(ctx, req.ApplicationId, true); err != nil {
 		return nil, err

pkg/app/api/service/webservice/service.pb.auth.go

@@ -56,6 +56,8 @@ func (a *authorizer) Authorize(method string, r model.Role) bool {
 		return isAdmin(r)
 	case "/pipe.api.service.webservice.WebService/AddApplication":
 		return isAdmin(r)
+	case "/pipe.api.service.webservice.WebService/UpdateApplication":
+		return isAdmin(r)
 	case "/pipe.api.service.webservice.WebService/EnableApplication":
 		return isAdmin(r)
 	case "/pipe.api.service.webservice.WebService/DisableApplication":

pkg/app/api/service/webservice/service.proto

@@ -50,6 +50,7 @@ service WebService {
 
     // Application
     rpc AddApplication(AddApplicationRequest) returns (AddApplicationResponse) {}
+    rpc UpdateApplication(UpdateApplicationRequest) returns (UpdateApplicationResponse) {}
     rpc EnableApplication(EnableApplicationRequest) returns (EnableApplicationResponse) {}
     rpc DisableApplication(DisableApplicationRequest) returns (DisableApplicationResponse) {}
     rpc ListApplications(ListApplicationsRequest) returns (ListApplicationsResponse) {}
@@ -179,6 +180,19 @@ message AddApplicationResponse {
     string application_id = 1 [(validate.rules).string.min_len = 1];
 }
 
+message UpdateApplicationRequest {
+    string application_id = 1 [(validate.rules).string.min_len = 1];
+    string name = 2 [(validate.rules).string.min_len = 1];
+    string env_id = 3 [(validate.rules).string.min_len = 1];
+    string piped_id = 4 [(validate.rules).string.min_len = 1];
+    model.ApplicationGitPath git_path = 5 [(validate.rules).message.required = true];
+    model.ApplicationKind kind = 6 [(validate.rules).enum.defined_only = true];
+    string cloud_provider = 7 [(validate.rules).string.min_len = 1];
+}
+
+message UpdateApplicationResponse {
+}
+
 message EnableApplicationRequest {
     string application_id = 1 [(validate.rules).string.min_len = 1];
 }