Fix schedule tasks bugs (#28691)

Fix #28157 

This PR fix the possible bugs about actions schedule.

## The Changes

- Move `UpdateRepositoryUnit` and `SetRepoDefaultBranch` from models to
service layer
- Remove schedules plan from database and cancel waiting & running
schedules tasks in this repository when actions unit has been disabled
or global disabled.
- Remove schedules plan from database and cancel waiting & running
schedules tasks in this repository when default branch changed.

services/repository/branch.go

@@ -10,6 +10,7 @@ import (
 	"strings"
 
 	"code.gitea.io/gitea/models"
+	actions_model "code.gitea.io/gitea/models/actions"
 	"code.gitea.io/gitea/models/db"
 	git_model "code.gitea.io/gitea/models/git"
 	issues_model "code.gitea.io/gitea/models/issues"
@@ -22,6 +23,7 @@ import (
 	repo_module "code.gitea.io/gitea/modules/repository"
 	"code.gitea.io/gitea/modules/timeutil"
 	"code.gitea.io/gitea/modules/util"
+	webhook_module "code.gitea.io/gitea/modules/webhook"
 	notify_service "code.gitea.io/gitea/services/notify"
 	files_service "code.gitea.io/gitea/services/repository/files"
 
@@ -308,13 +310,28 @@ func RenameBranch(ctx context.Context, repo *repo_model.Repository, doer *user_m
 		return "from_not_exist", nil
 	}
 
-	if err := git_model.RenameBranch(ctx, repo, from, to, func(isDefault bool) error {
+	if err := git_model.RenameBranch(ctx, repo, from, to, func(ctx context.Context, isDefault bool) error {
 		err2 := gitRepo.RenameBranch(from, to)
 		if err2 != nil {
 			return err2
 		}
 
 		if isDefault {
+			// if default branch changed, we need to delete all schedules and cron jobs
+			if err := actions_model.DeleteScheduleTaskByRepo(ctx, repo.ID); err != nil {
+				log.Error("DeleteCronTaskByRepo: %v", err)
+			}
+			// cancel running cron jobs of this repository and delete old schedules
+			if err := actions_model.CancelRunningJobs(
+				ctx,
+				repo.ID,
+				from,
+				"",
+				webhook_module.HookEventSchedule,
+			); err != nil {
+				log.Error("CancelRunningJobs: %v", err)
+			}
+
 			err2 = gitRepo.SetDefaultBranch(to)
 			if err2 != nil {
 				return err2
@@ -450,3 +467,50 @@ func AddAllRepoBranchesToSyncQueue(ctx context.Context, doerID int64) error {
 	}
 	return nil
 }
+
+func SetRepoDefaultBranch(ctx context.Context, repo *repo_model.Repository, gitRepo *git.Repository, newBranchName string) error {
+	if repo.DefaultBranch == newBranchName {
+		return nil
+	}
+
+	if !gitRepo.IsBranchExist(newBranchName) {
+		return git_model.ErrBranchNotExist{
+			BranchName: newBranchName,
+		}
+	}
+
+	oldDefaultBranchName := repo.DefaultBranch
+	repo.DefaultBranch = newBranchName
+	if err := db.WithTx(ctx, func(ctx context.Context) error {
+		if err := repo_model.UpdateDefaultBranch(ctx, repo); err != nil {
+			return err
+		}
+
+		if err := actions_model.DeleteScheduleTaskByRepo(ctx, repo.ID); err != nil {
+			log.Error("DeleteCronTaskByRepo: %v", err)
+		}
+		// cancel running cron jobs of this repository and delete old schedules
+		if err := actions_model.CancelRunningJobs(
+			ctx,
+			repo.ID,
+			oldDefaultBranchName,
+			"",
+			webhook_module.HookEventSchedule,
+		); err != nil {
+			log.Error("CancelRunningJobs: %v", err)
+		}
+
+		if err := gitRepo.SetDefaultBranch(newBranchName); err != nil {
+			if !git.IsErrUnsupportedVersion(err) {
+				return err
+			}
+		}
+		return nil
+	}); err != nil {
+		return err
+	}
+
+	notify_service.ChangeDefaultBranch(ctx, repo)
+
+	return nil
+}

services/repository/setting.go

@@ -0,0 +1,47 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repository
+
+import (
+	"context"
+	"slices"
+
+	actions_model "code.gitea.io/gitea/models/actions"
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unit"
+	"code.gitea.io/gitea/modules/log"
+)
+
+// UpdateRepositoryUnits updates a repository's units
+func UpdateRepositoryUnits(ctx context.Context, repo *repo_model.Repository, units []repo_model.RepoUnit, deleteUnitTypes []unit.Type) (err error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	// Delete existing settings of units before adding again
+	for _, u := range units {
+		deleteUnitTypes = append(deleteUnitTypes, u.Type)
+	}
+
+	if slices.Contains(deleteUnitTypes, unit.TypeActions) {
+		if err := actions_model.CleanRepoScheduleTasks(ctx, repo); err != nil {
+			log.Error("CleanRepoScheduleTasks: %v", err)
+		}
+	}
+
+	if _, err = db.GetEngine(ctx).Where("repo_id = ?", repo.ID).In("type", deleteUnitTypes).Delete(new(repo_model.RepoUnit)); err != nil {
+		return err
+	}
+
+	if len(units) > 0 {
+		if err = db.Insert(ctx, units); err != nil {
+			return err
+		}
+	}
+
+	return committer.Commit()
+}