refactor(plugins): restructure admin and message_gateway into standard layered sub-packages

backend/plugins/domain/admin/repository/template.go

@@ -0,0 +1,58 @@
+// Copyright 2026 Arctel.net
+// SPDX-License-Identifier: Apache-2.0
+
+package repository
+
+import (
+	"Wavelet/plugins/domain/admin/model"
+	"context"
+	"errors"
+
+	"gorm.io/gorm"
+)
+
+// ListTemplatesRecord returns all templates ordered by system flag and creation time.
+func ListTemplatesRecord(ctx context.Context) ([]model.Template, error) {
+	var templates []model.Template
+	if err := GetDB(ctx).Order("is_system DESC, created_at DESC").Find(&templates).Error; err != nil {
+		return nil, err
+	}
+	return templates, nil
+}
+
+// GetTemplateByKey loads a template by its key.
+func GetTemplateByKey(ctx context.Context, key string) (model.Template, error) {
+	var tmpl model.Template
+	if err := GetDB(ctx).Where("key = ?", key).First(&tmpl).Error; err != nil {
+		return model.Template{}, err
+	}
+	return tmpl, nil
+}
+
+// TemplateExistsByKey reports whether a template key is already taken.
+func TemplateExistsByKey(ctx context.Context, key string) (bool, error) {
+	var existing model.Template
+	err := GetDB(ctx).Where("key = ?", key).First(&existing).Error
+	if errors.Is(err, gorm.ErrRecordNotFound) {
+		return false, nil
+	}
+	if err != nil {
+		return false, err
+	}
+	return true, nil
+}
+
+// CreateTemplateRecord persists a new template.
+func CreateTemplateRecord(ctx context.Context, tmpl *model.Template) error {
+	return GetDB(ctx).Create(tmpl).Error
+}
+
+// SaveTemplateRecord updates an existing template.
+func SaveTemplateRecord(ctx context.Context, tmpl *model.Template) error {
+	return GetDB(ctx).Save(tmpl).Error
+}
+
+// DeleteTemplateRecord removes a template record.
+func DeleteTemplateRecord(ctx context.Context, tmpl *model.Template) error {
+	return GetDB(ctx).Delete(tmpl).Error
+}