Add registerRemoveResolvedReports task

Added a first attempt at the registerRemoveResolvedReports
task. Has an issue with the usage of ctx
as in services/moderation/reporting, the services/context
package is imported explictly while for other tasks
in the tasks_extended module, it seems to be imported implicitly.

services/cron/tasks_extended.go

@@ -15,6 +15,7 @@ import (
 	issue_indexer "forgejo.org/modules/indexer/issues"
 	"forgejo.org/modules/setting"
 	"forgejo.org/modules/updatechecker"
+	moderation_service "forgejo.org/services/moderation"
 	repo_service "forgejo.org/services/repository"
 	archiver_service "forgejo.org/services/repository/archiver"
 	user_service "forgejo.org/services/user"
@@ -225,6 +226,24 @@ func registerRebuildIssueIndexer() {
 	})
 }
 
+func registerRemoveResolvedReports() {
+	type ReportConfig struct {
+		BaseConfig
+		Timeout time.Duration
+	}
+	RegisterTaskFatal("remove_resolved_reports", &ReportConfig{
+		BaseConfig: BaseConfig{
+			Enabled:    false,
+			RunAtStart: false,
+			Schedule:   "@every 72h",
+		},
+		Timeout: time.Duration(setting.Moderation.RemoveResolvedReportsTimeout) * time.Second,
+	}, func(ctx context.Context, _ *user_model.User, config Config) error {
+		reportConfig := config.(*ReportConfig)
+		return moderation_service.RemoveResolvedReports(ctx, reportConfig.Timeout)
+	})
+}
+
 func initExtendedTasks() {
 	registerDeleteInactiveUsers()
 	registerDeleteRepositoryArchives()
@@ -240,4 +259,5 @@ func initExtendedTasks() {
 	registerDeleteOldSystemNotices()
 	registerGCLFS()
 	registerRebuildIssueIndexer()
+	registerRemoveResolvedReports()
 }

services/moderation/reporting.go

@@ -5,7 +5,9 @@ package moderation
 
 import (
 	"errors"
+	"time"
 
+	"forgejo.org/models/db"
 	"forgejo.org/models/issues"
 	"forgejo.org/models/moderation"
 	"forgejo.org/models/perm"
@@ -127,3 +129,23 @@ func CanReport(ctx context.Context, doer *user.User, contentType moderation.Repo
 
 	return hasAccess, nil
 }
+
+// RemoveResolvedReports removes resolved reports
+func RemoveResolvedReports(ctx context.Context, timeout time.Duration) error {
+	log.Trace("Doing: RemoveResolvedReports")
+
+	status := moderation.ReportStatusTypeHandled
+	resolvedReports, err := db.GetEngine(ctx).Table("abuse_report").Where("status = ?", status).Exist()
+	if err != nil {
+		return err
+	} else if resolvedReports {
+		_, err := db.GetEngine(ctx).Table("abuse_report").Where("status = ?", status).Delete()
+		if err != nil {
+			return err
+		}
+		return nil
+	}
+
+	log.Trace("Finished: RemoveResolvedReports")
+	return nil
+}