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

package environment

import (
	"net/http"
	"strconv"

	"github.com/bradleyfalzon/ghinstallation"
	"github.com/google/go-github/github"
	"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 CreateEnvironmentHandler struct {
	handlers.PorterHandlerReadWriter
}

func NewCreateEnvironmentHandler(
	config *config.Config,
	decoderValidator shared.RequestDecoderValidator,
	writer shared.ResultWriter,
) *CreateEnvironmentHandler {
	return &CreateEnvironmentHandler{
		PorterHandlerReadWriter: handlers.NewDefaultPorterHandler(config, decoderValidator, writer),
	}
}

func (c *CreateEnvironmentHandler) 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)

	// create the environment
	request := &types.CreateEnvironmentRequest{}

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

	env, err := c.Repo().Environment().CreateEnvironment(&models.Environment{
		ProjectID:         project.ID,
		ClusterID:         cluster.ID,
		GitInstallationID: uint(ga.InstallationID),
		Name:              request.Name,
		GitRepoOwner:      request.GitRepoOwner,
		GitRepoName:       request.GitRepoName,
	})

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

	// TODO: upon environment creation, write Github actions files to the repo
	// client, err := getGithubClientFromEnvironment(c.Config(), env)

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

	c.WriteResult(w, r, env.ToEnvironmentType())
}

func getGithubClientFromEnvironment(config *config.Config, env *models.Environment) (*github.Client, error) {
	// get the github app client
	ghAppId, err := strconv.Atoi(config.ServerConf.GithubAppID)

	if err != nil {
		return nil, err
	}

	// authenticate as github app installation
	itr, err := ghinstallation.NewKeyFromFile(
		http.DefaultTransport,
		int64(ghAppId),
		int64(env.GitInstallationID),
		config.ServerConf.GithubAppSecretPath,
	)

	if err != nil {
		return nil, err
	}

	return github.NewClient(&http.Client{Transport: itr}), nil
}