Move package settings to package instead of being tied to version (#37026)

Unties settings page from package version and adds button to delete the
package version
Settings page now allows for deletion of entire package and it's
versions as opposed to a single version

Adds an API endpoint to delete the entire package with all versions from
registry

fixes: https://github.com/go-gitea/gitea/issues/36904

Co-Authored-By: gemini-3-flash

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: Giteabot <teabot@gitea.io>

models/packages/package_property.go

@@ -5,6 +5,7 @@ package packages
 
 import (
 	"context"
+	"errors"
 
 	"code.gitea.io/gitea/models/db"
 
@@ -86,6 +87,46 @@ func DeleteAllProperties(ctx context.Context, refType PropertyType, refID int64)
 	return err
 }
 
+// DeletePropertiesByPackageID deletes properties of a typed linked to the package
+// Use to avoid for loops in mass deletion of properties
+func DeletePropertiesByPackageID(ctx context.Context, refType PropertyType, packageID int64) error {
+	var deleteStmt *builder.Builder
+
+	switch refType {
+	case PropertyTypeFile:
+		deleteStmt = builder.Delete(
+			// Delete all properties that are attached to a file and are in ids from a subquery
+			// which returns ids from the package_file table joined on package_version to link it with package id
+			builder.Eq{"ref_type": PropertyTypeFile}, builder.In("ref_id",
+				builder.Select("package_file.id").From("package_file").
+					LeftJoin("package_version", "package_file.version_id = package_version.id").
+					Where(builder.Eq{"package_version.package_id": packageID}))).From("package_property")
+	case PropertyTypeVersion:
+		// Delete all properties that are attached to a version and are in ids from subquery to the package_version filtered by package id
+		deleteStmt = builder.Delete(
+			builder.Eq{"ref_type": PropertyTypeVersion}, builder.In("ref_id",
+				builder.Select("package_version.id").From("package_version").
+					Where(builder.Eq{"package_version.package_id": packageID}))).From("package_property")
+	case PropertyTypePackage:
+		// Delete all properties that are attached to a package and their reference links to the given package ID
+		deleteStmt = builder.Delete(
+			builder.Eq{"ref_type": PropertyTypePackage}, builder.Eq{"ref_id": packageID}).
+			From("package_property")
+	default:
+		return errors.New("invalid ref type")
+	}
+
+	_, err := db.GetEngine(ctx).Exec(deleteStmt)
+	return err
+}
+
+// DeleteFilePropertiesByVersionID deletes all file properties linked to specific version
+func DeleteFilePropertiesByVersionID(ctx context.Context, versionID int64) error {
+	deleteStmt := builder.Delete(builder.Eq{"ref_type": PropertyTypeFile}, builder.In("ref_id", builder.Select("id").From("package_file").Where(builder.Eq{"version_id": versionID}))).From("package_property")
+	_, err := db.GetEngine(ctx).Exec(deleteStmt)
+	return err
+}
+
 // DeletePropertyByID deletes a property
 func DeletePropertyByID(ctx context.Context, propertyID int64) error {
 	_, err := db.GetEngine(ctx).ID(propertyID).Delete(&PackageProperty{})