更新前后端代码

go/internal/service/project.go

@@ -0,0 +1,110 @@
+package service
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"filestoragesystem/internal/config"
+	"filestoragesystem/internal/model"
+	"filestoragesystem/internal/repository"
+	"filestoragesystem/pkg/apperr"
+)
+
+// ProjectService 项目服务
+type ProjectService struct {
+	cfg         *config.Config
+	projectRepo *repository.ProjectRepo
+	fileRepo    *repository.FileRepo
+	settingRepo *repository.SettingRepo
+	opLogRepo   *repository.OpLogRepo
+	webhookSvc  *WebhookService
+}
+
+// Create 创建项目
+func (s *ProjectService) Create(userID uint, name, description string, storageLimit int64) (*model.Project, error) {
+	if name == "" || len(name) > 100 {
+		return nil, fmt.Errorf("项目名称不能为空且不超过100字符")
+	}
+	if _, err := s.projectRepo.FindByName(userID, name); err == nil {
+		return nil, apperr.ErrProjectExists
+	}
+	if storageLimit <= 0 {
+		storageLimit = 5368709120 // 5GB
+		if v, err := s.settingRepo.GetValue("default_project_limit"); err == nil {
+			var n int64
+			if _, e := fmt.Sscanf(v, "%d", &n); e == nil && n > 0 {
+				storageLimit = n
+			}
+		}
+	}
+	p := &model.Project{
+		UserID: userID, Name: name, Description: description,
+		StorageLimit: storageLimit, Status: 1,
+	}
+	if err := s.projectRepo.Create(p); err != nil {
+		return nil, err
+	}
+	return p, nil
+}
+
+// List 项目列表，all=true时管理员查看全部
+func (s *ProjectService) List(userID uint, keyword string, all bool, page, pageSize int) ([]model.Project, int64, error) {
+	return s.projectRepo.List(userID, keyword, all, page, pageSize)
+}
+
+// Get 项目详情(所有者或管理员)
+func (s *ProjectService) Get(userID uint, id uint, isAdmin bool) (*model.Project, error) {
+	p, err := s.projectRepo.FindByID(id)
+	if err != nil {
+		return nil, apperr.ErrNotFound
+	}
+	if !isAdmin && p.UserID != userID {
+		return nil, apperr.ErrForbidden
+	}
+	return p, nil
+}
+
+// Update 更新项目
+func (s *ProjectService) Update(userID uint, id uint, isAdmin bool, name, description string, storageLimit int64) (*model.Project, error) {
+	p, err := s.Get(userID, id, isAdmin)
+	if err != nil {
+		return nil, err
+	}
+	if name != "" && name != p.Name {
+		if _, err := s.projectRepo.FindByName(userID, name); err == nil {
+			return nil, apperr.ErrProjectExists
+		}
+		p.Name = name
+	}
+	if description != "" {
+		p.Description = description
+	}
+	if storageLimit > 0 {
+		p.StorageLimit = storageLimit
+	}
+	if err := s.projectRepo.Update(p); err != nil {
+		return nil, err
+	}
+	return p, nil
+}
+
+// Delete 删除项目及其全部文件(硬删除)
+func (s *ProjectService) Delete(userID uint, id uint, isAdmin bool) error {
+	if _, err := s.Get(userID, id, isAdmin); err != nil {
+		return err
+	}
+	// 删除物理文件
+	files, _ := s.fileRepo.ListByProject(id)
+	seen := make(map[string]bool)
+	for _, f := range files {
+		if f.StoredPath != "" && !seen[f.StoredPath] {
+			seen[f.StoredPath] = true
+			_ = os.Remove(filepath.Join(s.cfg.Storage.Root, f.StoredPath))
+		}
+	}
+	_ = s.fileRepo.DB.Exec("DELETE FROM files WHERE project_id = ?", id).Error
+	_ = s.fileRepo.DB.Exec("DELETE FROM temp_links WHERE file_id IN (SELECT id FROM files WHERE project_id = ?)", id).Error
+
+	return s.projectRepo.Delete(id)
+}