Add internal/repository/app.go

internal/repository/app.go

@@ -0,0 +1,92 @@
+package repository
+
+import (
+	"gotest/internal/model"
+
+	"gorm.io/gorm"
+)
+
+// AppRepository 应用数据访问层
+type AppRepository struct {
+	db *gorm.DB
+}
+
+// NewAppRepository 创建应用仓库实例
+func NewAppRepository(db *gorm.DB) *AppRepository {
+	return &AppRepository{db: db}
+}
+
+// ListCategories 获取应用分类列表
+func (r *AppRepository) ListCategories() ([]model.AppCategory, error) {
+	var categories []model.AppCategory
+	if err := r.db.Order("sort ASC, id ASC").Find(&categories).Error; err != nil {
+		return nil, err
+	}
+	return categories, nil
+}
+
+// ListApps 获取应用列表，支持分类过滤、关键词搜索和排序
+func (r *AppRepository) ListApps(categoryID uint, keyword string, sort string, page, pageSize int) ([]model.App, int64, error) {
+	var apps []model.App
+	var total int64
+
+	query := r.db.Where("status = 1")
+	if categoryID > 0 {
+		query = query.Where("category_id = ?", categoryID)
+	}
+	if keyword != "" {
+		query = query.Where("name LIKE ? OR tags LIKE ? OR developer LIKE ?", "%"+keyword+"%", "%"+keyword+"%", "%"+keyword+"%")
+	}
+
+	if err := query.Model(&model.App{}).Count(&total).Error; err != nil {
+		return nil, 0, err
+	}
+
+	switch sort {
+	case "rating":
+		query = query.Order("rating DESC")
+	case "downloads":
+		query = query.Order("downloads DESC")
+	case "newest":
+		query = query.Order("update_date DESC")
+	default:
+		query = query.Order("sort ASC, id DESC")
+	}
+
+	if page > 0 && pageSize > 0 {
+		offset := (page - 1) * pageSize
+		query = query.Offset(offset).Limit(pageSize)
+	}
+
+	if err := query.Find(&apps).Error; err != nil {
+		return nil, 0, err
+	}
+	return apps, total, nil
+}
+
+// GetApp 根据 ID 获取应用详情
+func (r *AppRepository) GetApp(id uint) (*model.App, error) {
+	var app model.App
+	if err := r.db.First(&app, id).Error; err != nil {
+		return nil, err
+	}
+	return &app, nil
+}
+
+// ListFeaturedApps 获取精选应用
+func (r *AppRepository) ListFeaturedApps(limit int) ([]model.App, error) {
+	var apps []model.App
+	if err := r.db.Where("status = 1 AND is_featured = true").Order("downloads DESC").Limit(limit).Find(&apps).Error; err != nil {
+		return nil, err
+	}
+	return apps, nil
+}
+
+// ListNewApps 获取新上架应用
+func (r *AppRepository) ListNewApps(limit int) ([]model.App, error) {
+	var apps []model.App
+	if err := r.db.Where("status = 1 AND is_new = true").Order("update_date DESC").Limit(limit).Find(&apps).Error; err != nil {
+		return nil, err
+	}
+	return apps, nil
+}