func (uis *UIServer) projectPage(w http.ResponseWriter, r *http.Request) {

	_ = MustHaveProjectContext(r)
	_ = MustHaveUser(r)

	vars := mux.Vars(r)
	id := vars["project_id"]
	projRef, err := model.FindOneProjectRef(id)

	if err != nil {
		uis.LoggedError(w, r, http.StatusInternalServerError, err)
		return
	}
	projVars, err := model.FindOneProjectVars(id)

	if err != nil {
		uis.LoggedError(w, r, http.StatusInternalServerError, err)
		return
	}

	data := struct {
		ProjectRef  *model.ProjectRef
		ProjectVars *model.ProjectVars
	}{projRef, projVars}

	// the project context has all projects so make the ui list using all projects
	uis.WriteJSON(w, http.StatusOK, data)
}

// Creates a project ref local config that can be used for testing, with the string identifier given
// and the local config from a path
func CreateTestLocalConfig(testSettings *evergreen.Settings, projectName, projectPath string) error {

	if projectPath == "" {
		config, err := evergreen.FindConfig(testSettings.ConfigDir)
		if err != nil {
			return err
		}
		projectPath = filepath.Join(config, "project", fmt.Sprintf("%v.yml", projectName))
	}

	projectRef, err := model.FindOneProjectRef(projectName)
	if err != nil {
		return err
	}

	if projectRef == nil {
		projectRef = &model.ProjectRef{}
	}

	data, err := ioutil.ReadFile(projectPath)
	if err != nil {
		return err
	}

	err = yaml.Unmarshal(data, projectRef)
	if err != nil {
		return err
	}

	projectRef.LocalConfig = string(data)

	return projectRef.Upsert()
}

func TestCheckProjectSyntax(t *testing.T) {
	Convey("When validating a project's syntax", t, func() {
		Convey("if the project passes all of the validation funcs, no errors"+
			" should be returned", func() {
			distros := []distro.Distro{
				{Id: "test-distro-one"},
				{Id: "test-distro-two"},
			}

			err := testutil.CreateTestLocalConfig(projectValidatorConf, "project_test", "")
			So(err, ShouldBeNil)

			projectRef, err := model.FindOneProjectRef("project_test")
			So(err, ShouldBeNil)

			for _, d := range distros {
				So(d.Insert(), ShouldBeNil)
			}

			project, err := model.FindProject("", projectRef)
			So(err, ShouldBeNil)
			So(CheckProjectSyntax(project), ShouldResemble, []ValidationError{})
		})

		Reset(func() {
			db.Clear(distro.Collection)
		})
	})
}

// reachedFailureLimit returns true if task for the previous failure transition alert
// happened too long ago, as determined by some magic math.
func reachedFailureLimit(taskId string) (bool, error) {
	t, err := task.FindOne(task.ById(taskId))
	if err != nil {
		return false, err
	}
	if t == nil {
		return false, fmt.Errorf("task %v not found", taskId)
	}
	pr, err := model.FindOneProjectRef(t.Project)
	if err != nil {
		return false, err
	}
	if pr == nil {
		return false, fmt.Errorf("project ref %v not found", t.Project)
	}
	p, err := model.FindProject(t.Revision, pr)
	if err != nil {
		return false, err
	}
	if p == nil {
		return false, fmt.Errorf("project %v not found for revision %v", t.Project, t.Revision)
	}
	v := p.FindBuildVariant(t.BuildVariant)
	if v == nil {
		return false, fmt.Errorf("build variant %v does not exist in project", t.BuildVariant)
	}
	batchTime := pr.GetBatchTime(v)
	reached := time.Since(t.FinishTime) > (time.Duration(batchTime) * time.Minute * failureLimitMultiplier)
	return reached, nil

}

// GetPatchedProject creates and validates a project created by fetching latest commit information from GitHub
// and applying the patch to the latest remote configuration. The error returned can be a validation error.
func GetPatchedProject(p *patch.Patch, settings *evergreen.Settings) (*model.Project, error) {
	if p.Version != "" {
		return nil, fmt.Errorf("Patch %v already finalized", p.Version)
	}
	projectRef, err := model.FindOneProjectRef(p.Project)
	if err != nil {
		return nil, err
	}

	// try to get the remote project file data at the requested revision
	var projectFileBytes []byte
	projectFileURL := thirdparty.GetGithubFileURL(
		projectRef.Owner,
		projectRef.Repo,
		projectRef.RemotePath,
		p.Githash,
	)
	githubFile, err := thirdparty.GetGithubFile(settings.Credentials["github"], projectFileURL)
	if err != nil {
		// if the project file doesn't exist, but our patch includes a project file,
		// we try to apply the diff and proceed.
		if !(p.ConfigChanged(projectRef.RemotePath) && thirdparty.IsFileNotFound(err)) {
			// return an error if the github error is network/auth-related or we aren't patching the config
			return nil, fmt.Errorf("Could not get github file at %v: %v", projectFileURL, err)
		}
	} else {
		// we successfully got the project file in base64, so we decode it
		projectFileBytes, err = base64.StdEncoding.DecodeString(githubFile.Content)
		if err != nil {
			return nil, fmt.Errorf("Could not decode github file at %v: %v", projectFileURL, err)
		}
	}

	project := &model.Project{}
	if err = model.LoadProjectInto(projectFileBytes, projectRef.Identifier, project); err != nil {
		return nil, err
	}
	// apply remote configuration patch if needed
	if p.ConfigChanged(projectRef.RemotePath) {
		project, err = model.MakePatchedConfig(p, projectRef.RemotePath, string(projectFileBytes))
		if err != nil {
			return nil, fmt.Errorf("Could not patch remote configuration file: %v", err)
		}
		// overwrite project fields with the project ref to disallow tracking a
		// different project or doing other crazy things via config patches
		errs := CheckProjectSyntax(project)
		if len(errs) != 0 {
			var message string
			for _, err := range errs {
				message += fmt.Sprintf("\n\t=> %v", err)
			}
			return nil, fmt.Errorf(message)
		}
	}
	return project, nil
}

func TestProjectRef(t *testing.T) {
	Convey("When inserting a project ref", t, func() {
		err := modelutil.CreateTestLocalConfig(patchTestConfig, "mci-test", "")
		So(err, ShouldBeNil)
		projectRef, err := model.FindOneProjectRef("mci-test")
		So(err, ShouldBeNil)
		So(projectRef, ShouldNotBeNil)
		So(projectRef.Identifier, ShouldEqual, "mci-test")
	})
}

// GetPatchedProject creates and validates a project created by fetching latest commit information from GitHub
// and applying the patch to the latest remote configuration. The error returned can be a validation error.
func GetPatchedProject(p *patch.Patch, settings *evergreen.Settings) (*model.Project, error) {
	if p.Version != "" {
		return nil, fmt.Errorf("Patch %v already finalized", p.Version)
	}
	projectRef, err := model.FindOneProjectRef(p.Project)
	if err != nil {
		return nil, err
	}

	// get the remote file at the requested revision
	projectFileURL := thirdparty.GetGithubFileURL(
		projectRef.Owner,
		projectRef.Repo,
		projectRef.RemotePath,
		p.Githash,
	)

	githubFile, err := thirdparty.GetGithubFile(
		settings.Credentials["github"],
		projectFileURL,
	)
	if err != nil {
		return nil, fmt.Errorf("Could not get github file at %v: %v", projectFileURL, err)
	}

	projectFileBytes, err := base64.StdEncoding.DecodeString(githubFile.Content)
	if err != nil {
		return nil, fmt.Errorf("Could not decode github file at %v: %v", projectFileURL, err)
	}

	project := &model.Project{}

	if err = model.LoadProjectInto(projectFileBytes, projectRef.Identifier, project); err != nil {
		return nil, err
	}
	// apply remote configuration patch if needed
	if p.ConfigChanged(projectRef.RemotePath) {
		project, err = model.MakePatchedConfig(p, projectRef.RemotePath, string(projectFileBytes))
		if err != nil {
			return nil, fmt.Errorf("Could not patch remote configuration file: %v", err)
		}
		// overwrite project fields with the project ref to disallow tracking a
		// different project or doing other crazy things via config patches
		errs := CheckProjectSyntax(project)
		if len(errs) != 0 {
			var message string
			for _, err := range errs {
				message += fmt.Sprintf("\n\t=> %v", err)
			}
			return nil, fmt.Errorf(message)
		}
	}
	return project, nil
}

// gets the project ref project name corresponding to this identifier
func getProjectRef(identifier string) (projectRef *model.ProjectRef,
	err error) {
	if cachedProjectRef[identifier] == nil {
		projectRef, err = model.FindOneProjectRef(identifier)
		if err != nil {
			return
		}
		cachedProjectRecords[identifier] = projectRef
		return projectRef, nil
	}
	return cachedProjectRef[identifier], nil
}

// fetchProjectRef returns a project ref given the project identifier
func (as *APIServer) fetchProjectRef(w http.ResponseWriter, r *http.Request) {
	vars := mux.Vars(r)
	id := vars["identifier"]
	projectRef, err := model.FindOneProjectRef(id)
	if err != nil {
		as.LoggedError(w, r, http.StatusInternalServerError, err)
		return
	}
	if projectRef == nil {
		http.Error(w, fmt.Sprintf("no project found named '%v'", id), http.StatusNotFound)
		return
	}
	as.WriteJSON(w, http.StatusOK, projectRef)
}

func (as *APIServer) listVariants(w http.ResponseWriter, r *http.Request) {
	vars := mux.Vars(r)
	id := vars["projectId"]
	projectRef, err := model.FindOneProjectRef(id)
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}
	project, err := model.FindProject("", projectRef)
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}
	as.WriteJSON(w, http.StatusOK, project.BuildVariants)
}

// findProject is a wrapper around FindProjectRef that caches results by their ID to prevent
// redundantly querying for the same projectref over and over again.
func (qp *QueueProcessor) findProject(projectId string) (*model.ProjectRef, error) {
	if qp.projectsCache == nil { // lazily initialize the cache
		qp.projectsCache = map[string]*model.ProjectRef{}
	}
	if project, ok := qp.projectsCache[projectId]; ok {
		return project, nil
	}
	project, err := model.FindOneProjectRef(projectId)
	if err != nil {
		return nil, err
	}
	if project == nil {
		return nil, nil
	}
	qp.projectsCache[projectId] = project
	return project, nil
}

func (uis *UIServer) addProject(w http.ResponseWriter, r *http.Request) {

	dbUser := MustHaveUser(r)
	_ = MustHaveProjectContext(r)

	vars := mux.Vars(r)
	id := vars["project_id"]

	projectRef, err := model.FindOneProjectRef(id)
	if err != nil {
		uis.LoggedError(w, r, http.StatusInternalServerError, err)
		return
	}
	if projectRef != nil {
		http.Error(w, "Project already exists", http.StatusInternalServerError)
		return
	}

	newProject := model.ProjectRef{
		Identifier: id,
		Enabled:    true,
		Tracked:    true,
		RepoKind:   "github",
	}

	err = newProject.Insert()
	if err != nil {
		uis.LoggedError(w, r, http.StatusInternalServerError, err)
		return
	}

	allProjects, err := uis.filterAuthorizedProjects(dbUser)

	if err != nil {
		uis.LoggedError(w, r, http.StatusInternalServerError, err)
		return
	}

	data := struct {
		Available   bool
		ProjectId   string
		AllProjects []model.ProjectRef
	}{true, id, allProjects}

	uis.WriteJSON(w, http.StatusOK, data)
}

func (as *APIServer) GetProjectRef(w http.ResponseWriter, r *http.Request) {
	task := MustHaveTask(r)

	p, err := model.FindOneProjectRef(task.Project)

	if err != nil {
		as.LoggedError(w, r, http.StatusInternalServerError, err)
		return
	}

	if p == nil {
		http.Error(w, "project ref not found", http.StatusNotFound)
		return
	}

	as.WriteJSON(w, http.StatusOK, p)
}

func (restapi restAPI) getTaskHistory(w http.ResponseWriter, r *http.Request) {
	taskName := mux.Vars(r)["task_name"]
	projectName := r.FormValue("project")

	projectRef, err := model.FindOneProjectRef(projectName)
	if err != nil || projectRef == nil {
		msg := fmt.Sprintf("Error finding project '%v'", projectName)
		statusCode := http.StatusNotFound

		if err != nil {
			evergreen.Logger.Logf(slogger.ERROR, "%v: %v", msg, err)
			statusCode = http.StatusInternalServerError
		}

		restapi.WriteJSON(w, statusCode, responseError{Message: msg})
		return
	}

	project, err := model.FindProject("", projectRef)
	if err != nil {
		msg := fmt.Sprintf("Error finding project '%v'", projectName)
		evergreen.Logger.Logf(slogger.ERROR, "%v: %v", msg, err)
		restapi.WriteJSON(w, http.StatusInternalServerError, responseError{Message: msg})
		return
	}

	buildVariants := project.GetVariantsWithTask(taskName)
	iter := model.NewTaskHistoryIterator(taskName, buildVariants, project.Identifier)

	chunk, err := iter.GetChunk(nil, MaxNumRevisions, NoRevisions, false)
	if err != nil {
		msg := fmt.Sprintf("Error finding history for task '%v'", taskName)
		evergreen.Logger.Logf(slogger.ERROR, "%v: %v", msg, err)
		restapi.WriteJSON(w, http.StatusInternalServerError, responseError{Message: msg})
		return

	}

	restapi.WriteJSON(w, http.StatusOK, chunk)
	return

}

// setRevision sets the latest revision in the Repository
// database to the revision sent from the projects page.
func (uis *UIServer) setRevision(w http.ResponseWriter, r *http.Request) {
	MustHaveUser(r)

	vars := mux.Vars(r)
	id := vars["project_id"]

	data, err := ioutil.ReadAll(r.Body)
	if err != nil {
		uis.LoggedError(w, r, http.StatusNotFound, err)
		return
	}
	revision := string(data)
	if revision == "" {
		uis.LoggedError(w, r, http.StatusBadRequest, fmt.Errorf("revision sent was empty"))
		return
	}

	// update the latest revision to be the revision id
	err = model.UpdateLastRevision(id, revision)
	if err != nil {
		uis.LoggedError(w, r, http.StatusInternalServerError, err)
		return
	}

	// update the projectRef too
	projectRef, err := model.FindOneProjectRef(id)
	if err != nil {
		uis.LoggedError(w, r, http.StatusInternalServerError, err)
		return
	}
	projectRef.RepotrackerError.Exists = false
	projectRef.RepotrackerError.InvalidRevision = ""
	projectRef.RepotrackerError.MergeBaseRevision = ""
	err = projectRef.Upsert()
	if err != nil {
		uis.LoggedError(w, r, http.StatusInternalServerError, err)
		return
	}

	uis.WriteJSON(w, http.StatusOK, nil)
}

func (as *APIServer) listTasks(w http.ResponseWriter, r *http.Request) {
	vars := mux.Vars(r)
	id := vars["projectId"]
	projectRef, err := model.FindOneProjectRef(id)
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}
	project, err := model.FindProject("", projectRef)
	if err != nil {
		http.Error(w, err.Error(), http.StatusInternalServerError)
		return
	}

	// zero out the depends on and commands fields because they are
	// unnecessary and may not get marshaled properly
	for i := range project.Tasks {
		project.Tasks[i].DependsOn = []model.TaskDependency{}
		project.Tasks[i].Commands = []model.PluginCommandConf{}

	}
	as.WriteJSON(w, http.StatusOK, project.Tasks)
}

func (uis *UIServer) modifyProject(w http.ResponseWriter, r *http.Request) {

	_ = MustHaveUser(r)

	vars := mux.Vars(r)
	id := vars["project_id"]

	projectRef, err := model.FindOneProjectRef(id)

	if err != nil {
		uis.LoggedError(w, r, http.StatusInternalServerError, err)
		return
	}

	if projectRef == nil {
		http.Error(w, "Project not found", http.StatusNotFound)
		return
	}

	responseRef := struct {
		Identifier         string            `json:"id"`
		DisplayName        string            `json:"display_name"`
		RemotePath         string            `json:"remote_path"`
		BatchTime          int               `json:"batch_time"`
		DeactivatePrevious bool              `json:"deactivate_previous"`
		Branch             string            `json:"branch_name"`
		ProjVarsMap        map[string]string `json:"project_vars"`
		Enabled            bool              `json:"enabled"`
		Private            bool              `json:"private"`
		Owner              string            `json:"owner_name"`
		Repo               string            `json:"repo_name"`
		AlertConfig        map[string][]struct {
			Provider string                 `json:"provider"`
			Settings map[string]interface{} `json:"settings"`
		} `json:"alert_config"`
	}{}

	err = util.ReadJSONInto(r.Body, &responseRef)

	if err != nil {
		http.Error(w, fmt.Sprintf("Error parsing request body %v", err), http.StatusInternalServerError)
		return
	}

	projectRef.DisplayName = responseRef.DisplayName
	projectRef.RemotePath = responseRef.RemotePath
	projectRef.BatchTime = responseRef.BatchTime
	projectRef.Branch = responseRef.Branch
	projectRef.Enabled = responseRef.Enabled
	projectRef.Private = responseRef.Private
	projectRef.Owner = responseRef.Owner
	projectRef.DeactivatePrevious = responseRef.DeactivatePrevious
	projectRef.Repo = responseRef.Repo
	projectRef.Identifier = id

	projectRef.Alerts = map[string][]model.AlertConfig{}
	for triggerId, alerts := range responseRef.AlertConfig {
		//TODO validate the triggerID, provider, and settings.
		for _, alert := range alerts {
			projectRef.Alerts[triggerId] = append(projectRef.Alerts[triggerId], model.AlertConfig{
				Provider: alert.Provider,
				Settings: bson.M(alert.Settings),
			})
		}
	}

	err = projectRef.Upsert()

	if err != nil {
		uis.LoggedError(w, r, http.StatusInternalServerError, err)
		return
	}

	//modify project vars if necessary
	projectVars := model.ProjectVars{id, responseRef.ProjVarsMap}
	_, err = projectVars.Upsert()

	if err != nil {
		uis.LoggedError(w, r, http.StatusInternalServerError, err)
		return
	}

	allProjects, err := model.FindAllProjectRefs()

	if err != nil {
		uis.LoggedError(w, r, http.StatusInternalServerError, err)
		return
	}
	data := struct {
		AllProjects []model.ProjectRef
	}{allProjects}

	uis.WriteJSON(w, http.StatusOK, data)
}

// ManifestLoadHandler attempts to get the manifest, if it exists it updates the expansions and returns
// If it does not exist it performs GitHub API calls for each of the project's modules and gets
// the head revision of the branch and inserts it into the manifest collection.
// If there is a duplicate key error, then do a find on the manifest again.
func (mp *ManifestPlugin) ManifestLoadHandler(w http.ResponseWriter, r *http.Request) {
	task := plugin.GetTask(r)
	projectRef, err := model.FindOneProjectRef(task.Project)
	if err != nil {
		http.Error(w, fmt.Sprintf("projectRef not found for project %v: %v", task.Project, err), http.StatusNotFound)
		return
	}
	project, err := model.FindProject("", projectRef)
	if err != nil {
		http.Error(w, fmt.Sprintf("project not found for ProjectRef %v: %v", projectRef.Identifier, err),
			http.StatusNotFound)
		return
	}
	if project == nil {
		http.Error(w, fmt.Sprintf("empty project not found for ProjectRef %v: %v", projectRef.Identifier, err),
			http.StatusNotFound)
		return
	}

	// try to get the manifest
	currentManifest, err := manifest.FindOne(manifest.ById(task.Version))
	if err != nil {
		http.Error(w, fmt.Sprintf("error retrieving manifest with version id %v: %v", task.Version, err),
			http.StatusNotFound)
		return
	}
	if currentManifest != nil {
		plugin.WriteJSON(w, http.StatusOK, currentManifest)
		return
	}

	if task.Version == "" {
		http.Error(w, fmt.Sprintf("versionId is empty"), http.StatusNotFound)
		return
	}

	// attempt to insert a manifest after making GitHub API calls
	newManifest := &manifest.Manifest{
		Id:          task.Version,
		Revision:    task.Revision,
		ProjectName: task.Project,
		Branch:      project.Branch,
	}

	// populate modules
	modules := make(map[string]*manifest.Module)
	for _, module := range project.Modules {
		owner, repo := module.GetRepoOwnerAndName()
		gitBranch, err := thirdparty.GetBranchEvent(mp.OAuthCredentials, owner, repo, module.Branch)
		if err != nil {
			http.Error(w, fmt.Sprintf("error retrieving getting git branch for module %v: %v", module.Name, err),
				http.StatusNotFound)
			return
		}

		modules[module.Name] = &manifest.Module{
			Branch:   module.Branch,
			Revision: gitBranch.Commit.SHA,
			Repo:     repo,
			Owner:    owner,
			URL:      gitBranch.Commit.Url,
		}
	}
	newManifest.Modules = modules
	duplicate, err := newManifest.TryInsert()
	if err != nil {
		http.Error(w, fmt.Sprintf("error inserting manifest for %v: %v", newManifest.ProjectName, err),
			http.StatusNotFound)
		return
	}
	// if it is a duplicate, load the manifest again`
	if duplicate {
		// try to get the manifest
		m, err := manifest.FindOne(manifest.ById(task.Version))
		if err != nil {
			http.Error(w, fmt.Sprintf("error getting latest manifest for %v: %v", newManifest.ProjectName, err),
				http.StatusNotFound)
			return
		}
		if m != nil {
			plugin.WriteJSON(w, http.StatusOK, m)
			return
		}
	}
	// no duplicate key error, use the manifest just created.

	plugin.WriteJSON(w, http.StatusOK, newManifest)
	return
}

// LoadProjectContext builds a projectContext from vars in the request's URL.
// This is done by reading in specific variables and inferring other required
// context variables when necessary (e.g. loading a project based on the task).
func (uis *UIServer) LoadProjectContext(rw http.ResponseWriter, r *http.Request) (projectContext, error) {
	user := GetUser(r)
	vars := mux.Vars(r)

	proj := &projectContext{}

	taskId := vars["task_id"]
	buildId := vars["build_id"]
	versionId := vars["version_id"]
	patchId := vars["patch_id"]

	err := proj.populateProjectRefs(user != nil)
	if err != nil {
		return *proj, err
	}

	projectId, err := proj.populateTaskBuildVersion(taskId, buildId, versionId)
	if err != nil {
		return *proj, err
	}

	err = proj.populatePatch(patchId)
	if err != nil {
		return *proj, err
	}
	if proj.Patch != nil && len(projectId) == 0 {
		projectId = proj.Patch.Project
	}

	// Try to infer project ID - if we don't already have it from the task/build/version, try to
	// get it from the URL
	if len(projectId) == 0 {
		projectId = vars["project_id"]
	}

	usingDefault := false

	// Still don't have a project ID to use, check if the user's cookie contains one
	if len(projectId) == 0 {
		cookie, err := r.Cookie(ProjectCookieName)
		if err == nil {
			projectId = cookie.Value
		}
		usingDefault = true
	}

	// Still no project ID found anywhere, just use the default one according to config.
	if len(projectId) == 0 {
		projectId = uis.Settings.Ui.DefaultProject
		usingDefault = true
	}

	// Try to load project for the ID we found, and set cookie with it for subsequent requests
	if len(projectId) > 0 {
		// Also lookup the ProjectRef itself and add it to context.
		proj.ProjectRef, err = model.FindOneProjectRef(projectId)
		if err != nil {
			return *proj, err
		}

		// If we used the default project or a cookie to choose the project,
		// but that project doesn't exist, choose the first one in the list.
		if usingDefault && proj.ProjectRef == nil {
			if len(proj.AllProjects) > 0 {
				proj.ProjectRef = &proj.AllProjects[0]
			}
		}

		if proj.ProjectRef != nil {
			proj.Project, err = model.FindProject("", proj.ProjectRef)
			if err != nil {
				return *proj, err
			}

			if proj.Project != nil {
				// A project was found, update the project cookie for subsequent request.
				http.SetCookie(rw, &http.Cookie{
					Name:    ProjectCookieName,
					Value:   projectId,
					Path:    "",
					Expires: time.Now().Add(7 * 24 * time.Hour),
				})

			}
		}
	}

	proj.AuthRedirect = uis.UserManager.IsRedirect()
	return *proj, nil
}

func (as *APIServer) updatePatchModule(w http.ResponseWriter, r *http.Request) {
	p, err := getPatchFromRequest(r)
	if err != nil {
		as.WriteJSON(w, http.StatusBadRequest, err.Error())
		return
	}
	moduleName := r.FormValue("module")
	patchContent := r.FormValue("patch")
	githash := r.FormValue("githash")

	projectRef, err := model.FindOneProjectRef(p.Project)
	if err != nil {
		as.LoggedError(w, r, http.StatusInternalServerError, fmt.Errorf("Error getting project ref with id %v: %v", p.Project, err))
		return
	}
	project, err := model.FindProject("", projectRef)
	if err != nil {
		as.LoggedError(w, r, http.StatusInternalServerError, fmt.Errorf("Error getting patch: %v", err))
		return
	}
	if project == nil {
		as.LoggedError(w, r, http.StatusNotFound, fmt.Errorf("can't find project: %v", p.Project))
		return
	}

	module, err := project.GetModuleByName(moduleName)
	if err != nil || module == nil {
		as.LoggedError(w, r, http.StatusBadRequest, fmt.Errorf("No such module"))
		return
	}

	gitOutput, err := thirdparty.GitApplyNumstat(patchContent)
	if err != nil {
		as.WriteJSON(w, http.StatusBadRequest, fmt.Errorf("Invalid patch: %v", err))
		return
	}
	if gitOutput == nil {
		as.WriteJSON(w, http.StatusBadRequest, fmt.Errorf("Empty diff"))
		return
	}

	summaries, err := thirdparty.ParseGitSummary(gitOutput)
	if err != nil {
		as.WriteJSON(w, http.StatusBadRequest, fmt.Errorf("Can't validate patch: %v", err))
		return
	}

	repoOwner, repo := module.GetRepoOwnerAndName()

	commitInfo, err := thirdparty.GetCommitEvent(as.Settings.Credentials[projectRef.RepoKind], repoOwner, repo, githash)
	if err != nil {
		as.LoggedError(w, r, http.StatusInternalServerError, err)
		return
	}

	if commitInfo == nil {
		as.WriteJSON(w, http.StatusBadRequest, fmt.Errorf("commit hash doesn't seem to exist"))
		return
	}

	modulePatch := patch.ModulePatch{
		ModuleName: moduleName,
		Githash:    githash,
		PatchSet: patch.PatchSet{
			Patch:   patchContent,
			Summary: summaries, // thirdparty.GetPatchSummary(apiRequest.PatchContent),
		},
	}

	if err = p.UpdateModulePatch(modulePatch); err != nil {
		as.LoggedError(w, r, http.StatusInternalServerError, err)
		return
	}

	as.WriteJSON(w, http.StatusOK, "Patch module updated")
	return
}