porter/api/server/handlers/environment/delete_deployment.go

package environment

import (
	"net/http"
	"strings"

	"github.com/porter-dev/porter/api/server/authz"
	"github.com/porter-dev/porter/api/server/handlers"
	"github.com/porter-dev/porter/api/server/shared"
	"github.com/porter-dev/porter/api/server/shared/apierrors"
	"github.com/porter-dev/porter/api/server/shared/config"
	"github.com/porter-dev/porter/api/types"
	"github.com/porter-dev/porter/internal/models"
	"github.com/porter-dev/porter/internal/models/integrations"
)

type DeleteDeploymentHandler struct {
	handlers.PorterHandlerReadWriter
	authz.KubernetesAgentGetter
}

func NewDeleteDeploymentHandler(
	config *config.Config,
	decoderValidator shared.RequestDecoderValidator,
	writer shared.ResultWriter,
) *DeleteDeploymentHandler {
	return &DeleteDeploymentHandler{
		PorterHandlerReadWriter: handlers.NewDefaultPorterHandler(config, decoderValidator, writer),
		KubernetesAgentGetter:   authz.NewOutOfClusterAgentGetter(config),
	}
}

func (c *DeleteDeploymentHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
	ga, _ := r.Context().Value(types.GitInstallationScope).(*integrations.GithubAppInstallation)
	project, _ := r.Context().Value(types.ProjectScope).(*models.Project)
	cluster, _ := r.Context().Value(types.ClusterScope).(*models.Cluster)

	request := &types.FinalizeDeploymentRequest{}

	if ok := c.DecodeAndValidate(w, r, request); !ok {
		return
	}

	// read the environment to get the environment id
	env, err := c.Repo().Environment().ReadEnvironment(project.ID, cluster.ID, uint(ga.InstallationID))

	if err != nil {
		c.HandleAPIError(w, r, apierrors.NewErrInternal(err))
		return
	}

	// read the deployment
	depl, err := c.Repo().Environment().ReadDeployment(env.ID, request.Namespace)

	if err != nil {
		c.HandleAPIError(w, r, apierrors.NewErrInternal(err))
		return
	}

	// delete corresponding namespace
	agent, err := c.GetAgent(r, cluster, "")

	if err != nil {
		c.HandleAPIError(w, r, apierrors.NewErrInternal(err))
		return
	}

	// make sure we don't delete default or kube-system by checking for prefix, for now
	if strings.Contains(depl.Namespace, "pr-") {
		err = agent.DeleteNamespace(depl.Namespace)

		if err != nil {
			c.HandleAPIError(w, r, apierrors.NewErrInternal(err))
			return
		}
	}

	// TODO: delete corresponding Github actions files using the client
	// client, err := getGithubClientFromEnvironment(c.Config(), env)

	// if err != nil {
	// 	c.HandleAPIError(w, r, apierrors.NewErrInternal(err))
	// 	return
	// }

	// delete the deployment
	depl, err = c.Repo().Environment().DeleteDeployment(depl)

	if err != nil {
		c.HandleAPIError(w, r, apierrors.NewErrInternal(err))
		return
	}

	c.WriteResult(w, r, depl.ToDeploymentType())
}