Add route to create or update execution environments

api/environments.go

@@ -1,17 +1,53 @@
 package api
 
 import (
+	"encoding/json"
+	"fmt"
+	"github.com/gorilla/mux"
+	"gitlab.hpi.de/codeocean/codemoon/poseidon/api/dto"
 	"gitlab.hpi.de/codeocean/codemoon/poseidon/environment"
 	"net/http"
 )
 
+const (
+	executionEnvironmentIDKey = "executionEnvironmentId"
+	createOrUpdateRouteName   = "createOrUpdate"
+)
+
 type EnvironmentController struct {
-	manager environment.Manager // nolint:unused,structcheck
+	manager environment.Manager
 }
 
-// create creates a new execution environment on the executor.
-func (e *EnvironmentController) create(writer http.ResponseWriter, request *http.Request) { // nolint:unused
+func (e *EnvironmentController) ConfigureRoutes(router *mux.Router) {
+	environmentRouter := router.PathPrefix(EnvironmentsPath).Subrouter()
+	specificEnvironmentRouter := environmentRouter.Path(fmt.Sprintf("/{%s:[0-9]+}", executionEnvironmentIDKey)).Subrouter()
+	specificEnvironmentRouter.HandleFunc("", e.createOrUpdate).Methods(http.MethodPut).Name(createOrUpdateRouteName)
+}
 
+// createOrUpdate creates/updates an execution environment on the executor.
+func (e *EnvironmentController) createOrUpdate(writer http.ResponseWriter, request *http.Request) {
+	req := new(dto.ExecutionEnvironmentRequest)
+	if err := json.NewDecoder(request.Body).Decode(req); err != nil {
+		writeBadRequest(writer, err)
+		return
+	}
+
+	id, ok := mux.Vars(request)[executionEnvironmentIDKey]
+	if !ok {
+		writeBadRequest(writer, fmt.Errorf("could not find %s", executionEnvironmentIDKey))
+		return
+	}
+
+	created, err := e.manager.CreateOrUpdate(id, *req)
+	if err != nil {
+		writeInternalServerError(writer, err, dto.ErrorUnknown)
+	}
+
+	if created {
+		writer.WriteHeader(http.StatusCreated)
+	} else {
+		writer.WriteHeader(http.StatusNoContent)
+	}
 }
 
 // delete removes an execution environment from the executor