Move clearlabels from models to issue service (#8326)

* move clearlabels from models to issue service

* improve code

* Apply suggestions from code review

Co-Authored-By: zeripath <art27@cantab.net>

6 files changed, 94 insertions, 36 deletions

diff --git a/models/issue.go b/models/issue.go
index fc675a3ffb..90925f92f5 100644
--- a/models/issue.go
+++ b/models/issue.go
@@ -596,40 +596,6 @@ func (issue *Issue) ClearLabels(doer *User) (err error) {
 	if err = sess.Commit(); err != nil {
 		return fmt.Errorf("Commit: %v", err)
 	}
-	sess.Close()
-
-	if err = issue.LoadPoster(); err != nil {
-		return fmt.Errorf("loadPoster: %v", err)
-	}
-
-	mode, _ := AccessLevel(issue.Poster, issue.Repo)
-	if issue.IsPull {
-		err = issue.PullRequest.LoadIssue()
-		if err != nil {
-			log.Error("LoadIssue: %v", err)
-			return
-		}
-		err = PrepareWebhooks(issue.Repo, HookEventPullRequest, &api.PullRequestPayload{
-			Action:      api.HookIssueLabelCleared,
-			Index:       issue.Index,
-			PullRequest: issue.PullRequest.APIFormat(),
-			Repository:  issue.Repo.APIFormat(mode),
-			Sender:      doer.APIFormat(),
-		})
-	} else {
-		err = PrepareWebhooks(issue.Repo, HookEventIssues, &api.IssuePayload{
-			Action:     api.HookIssueLabelCleared,
-			Index:      issue.Index,
-			Issue:      issue.APIFormat(),
-			Repository: issue.Repo.APIFormat(mode),
-			Sender:     doer.APIFormat(),
-		})
-	}
-	if err != nil {
-		log.Error("PrepareWebhooks [is_pull: %v]: %v", issue.IsPull, err)
-	} else {
-		go HookQueue.Add(issue.RepoID)
-	}
 
 	return nil
 }
diff --git a/modules/notification/notification.go b/modules/notification/notification.go
index e0de88346d..06220ecb04 100644
--- a/modules/notification/notification.go
+++ b/modules/notification/notification.go
@@ -11,6 +11,7 @@ import (
 	"code.gitea.io/gitea/modules/notification/indexer"
 	"code.gitea.io/gitea/modules/notification/mail"
 	"code.gitea.io/gitea/modules/notification/ui"
+	"code.gitea.io/gitea/modules/notification/webhook"
 )
 
 var (
@@ -27,6 +28,7 @@ func init() {
 	RegisterNotifier(ui.NewNotifier())
 	RegisterNotifier(mail.NewNotifier())
 	RegisterNotifier(indexer.NewNotifier())
+	RegisterNotifier(webhook.NewNotifier())
 }
 
 // NotifyCreateIssueComment notifies issue comment related message to notifiers
diff --git a/modules/notification/webhook/webhook.go b/modules/notification/webhook/webhook.go
new file mode 100644
index 0000000000..33adfaa739
--- /dev/null
+++ b/modules/notification/webhook/webhook.go
@@ -0,0 +1,67 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package webhook
+
+import (
+	"code.gitea.io/gitea/models"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/notification/base"
+	api "code.gitea.io/gitea/modules/structs"
+)
+
+type webhookNotifier struct {
+	base.NullNotifier
+}
+
+var (
+	_ base.Notifier = &webhookNotifier{}
+)
+
+// NewNotifier create a new webhookNotifier notifier
+func NewNotifier() base.Notifier {
+	return &webhookNotifier{}
+}
+
+func (m *webhookNotifier) NotifyIssueClearLabels(doer *models.User, issue *models.Issue) {
+	if err := issue.LoadPoster(); err != nil {
+		log.Error("loadPoster: %v", err)
+		return
+	}
+
+	if err := issue.LoadRepo(); err != nil {
+		log.Error("LoadRepo: %v", err)
+		return
+	}
+
+	mode, _ := models.AccessLevel(issue.Poster, issue.Repo)
+	var err error
+	if issue.IsPull {
+		if err = issue.LoadPullRequest(); err != nil {
+			log.Error("LoadPullRequest: %v", err)
+			return
+		}
+
+		err = models.PrepareWebhooks(issue.Repo, models.HookEventPullRequest, &api.PullRequestPayload{
+			Action:      api.HookIssueLabelCleared,
+			Index:       issue.Index,
+			PullRequest: issue.PullRequest.APIFormat(),
+			Repository:  issue.Repo.APIFormat(mode),
+			Sender:      doer.APIFormat(),
+		})
+	} else {
+		err = models.PrepareWebhooks(issue.Repo, models.HookEventIssues, &api.IssuePayload{
+			Action:     api.HookIssueLabelCleared,
+			Index:      issue.Index,
+			Issue:      issue.APIFormat(),
+			Repository: issue.Repo.APIFormat(mode),
+			Sender:     doer.APIFormat(),
+		})
+	}
+	if err != nil {
+		log.Error("PrepareWebhooks [is_pull: %v]: %v", issue.IsPull, err)
+	} else {
+		go models.HookQueue.Add(issue.RepoID)
+	}
+}
diff --git a/routers/api/v1/repo/issue_label.go b/routers/api/v1/repo/issue_label.go
index e66bc35e90..7bd76c24c2 100644
--- a/routers/api/v1/repo/issue_label.go
+++ b/routers/api/v1/repo/issue_label.go
@@ -9,6 +9,7 @@ import (
 	"code.gitea.io/gitea/models"
 	"code.gitea.io/gitea/modules/context"
 	api "code.gitea.io/gitea/modules/structs"
+	issue_service "code.gitea.io/gitea/services/issue"
 )
 
 // ListIssueLabels list all the labels of an issue
@@ -314,7 +315,7 @@ func ClearIssueLabels(ctx *context.APIContext) {
 		return
 	}
 
-	if err := issue.ClearLabels(ctx.User); err != nil {
+	if err := issue_service.ClearLabels(issue, ctx.User); err != nil {
 		ctx.Error(500, "ClearLabels", err)
 		return
 	}
diff --git a/routers/repo/issue_label.go b/routers/repo/issue_label.go
index 452a0a4c0c..53c37e2e97 100644
--- a/routers/repo/issue_label.go
+++ b/routers/repo/issue_label.go
@@ -10,6 +10,7 @@ import (
 	"code.gitea.io/gitea/modules/base"
 	"code.gitea.io/gitea/modules/context"
 	"code.gitea.io/gitea/modules/log"
+	issue_service "code.gitea.io/gitea/services/issue"
 )
 
 const (
@@ -132,7 +133,7 @@ func UpdateIssueLabel(ctx *context.Context) {
 	switch action := ctx.Query("action"); action {
 	case "clear":
 		for _, issue := range issues {
-			if err := issue.ClearLabels(ctx.User); err != nil {
+			if err := issue_service.ClearLabels(issue, ctx.User); err != nil {
 				ctx.ServerError("ClearLabels", err)
 				return
 			}
diff --git a/services/issue/label.go b/services/issue/label.go
new file mode 100644
index 0000000000..4af8c2b97e
--- /dev/null
+++ b/services/issue/label.go
@@ -0,0 +1,21 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package issue
+
+import (
+	"code.gitea.io/gitea/models"
+	"code.gitea.io/gitea/modules/notification"
+)
+
+// ClearLabels clears all of an issue's labels
+func ClearLabels(issue *models.Issue, doer *models.User) (err error) {
+	if err = issue.ClearLabels(doer); err != nil {
+		return
+	}
+
+	notification.NotifyIssueClearLabels(doer, issue)
+
+	return nil
+}