From 4348087136cbef1486d0b900fefc959d2e672c2f Mon Sep 17 00:00:00 2001
From: saltbo <saltbo@foxmail.com>
Date: Thu, 27 Aug 2020 23:26:39 +0800
Subject: [PATCH] refactor: not allow the duplicate folders and files

---
 cmd/server.go     |  1 +
 rest/file.go      | 10 ++++++++--
 rest/link.go      | 16 ++++++++++++++--
 service/matter.go | 25 +++++++++++++++++--------
 4 files changed, 40 insertions(+), 12 deletions(-)

diff --git a/cmd/server.go b/cmd/server.go
index bfa0779..fb8be3c 100644
--- a/cmd/server.go
+++ b/cmd/server.go
@@ -49,6 +49,7 @@ var serverCmd = &cobra.Command{
 			&model.Share{},
 			&model.Storage{},
 		)
+		gormutil.Debug()
 
 		fmt.Println(conf.Provider)
 		diskProvider, err := disk.New(conf.Provider)
diff --git a/rest/file.go b/rest/file.go
index 78b7097..ba67499 100644
--- a/rest/file.go
+++ b/rest/file.go
@@ -95,8 +95,14 @@ func (f *FileResource) createFolder(c *gin.Context) {
 	}
 
 	uid := moreu.GetUserId(c)
-	if service.DirNotExist(uid, p.Dir) {
-		ginutil.JSONBadRequest(c, fmt.Errorf("direction %s not exist", p.Dir))
+	if !service.MatterParentExist(uid, p.Dir) {
+		ginutil.JSONBadRequest(c, fmt.Errorf("parent dir not exist"))
+		return
+	}
+
+	// matter exist
+	if service.MatterExist(uid, p.Name, p.Dir) {
+		ginutil.JSONBadRequest(c, fmt.Errorf("matter already exist"))
 		return
 	}
 
diff --git a/rest/link.go b/rest/link.go
index dda2092..b093256 100644
--- a/rest/link.go
+++ b/rest/link.go
@@ -2,9 +2,13 @@ package rest
 
 import (
 	"fmt"
+	"path/filepath"
+	"strings"
+	"time"
 
 	"github.com/gin-gonic/gin"
 	"github.com/saltbo/gopkg/ginutil"
+	"github.com/saltbo/gopkg/timeutil"
 	moreu "github.com/saltbo/moreu/client"
 	uuid "github.com/satori/go.uuid"
 
@@ -51,11 +55,19 @@ func (rs *LinkResource) createUploadURL(c *gin.Context) {
 		return
 	}
 
-	if service.DirNotExist(uid, p.Dir) {
-		ginutil.JSONBadRequest(c, fmt.Errorf("direction %s not exist", p.Dir))
+	if !service.MatterParentExist(uid, p.Dir) {
+		ginutil.JSONBadRequest(c, fmt.Errorf("parent dir not exist"))
 		return
 	}
 
+	//	auto append a suffix if matter exist
+	if service.MatterExist(uid, p.Name, p.Dir) {
+		ext := filepath.Ext(p.Name)
+		name := strings.TrimSuffix(p.Name, ext)
+		suffix := fmt.Sprintf("_%s", timeutil.Format(time.Now(), "YYYYMMDD_HHmmss"))
+		p.Name = name + suffix + ext
+	}
+
 	publicRead := false
 	if p.Dir == ".pics/" {
 		publicRead = true
diff --git a/service/matter.go b/service/matter.go
index 0317530..b1d3758 100644
--- a/service/matter.go
+++ b/service/matter.go
@@ -10,15 +10,24 @@ import (
 	"github.com/saltbo/zpan/model"
 )
 
-func DirNotExist(uid int64, dir string) bool {
-	if dir == "" {
-		return false
+func MatterExist(uid int64, name, parent string) bool {
+	return !gormutil.DB().Where("uid=? and name=? and parent=?", uid, name, parent).First(&model.Matter{}).RecordNotFound()
+}
+
+func MatterParentExist(uid int64, parentDir string) bool {
+	if parentDir == "" {
+		return true
+	}
+
+	// parent matter exist, eg: test123/234/
+	items := strings.Split(parentDir, "/")
+	name := items[len(items)-2]                       // -> 234
+	parent := strings.TrimSuffix(parentDir, name+"/") // -> test123/
+	if MatterExist(uid, name, parent) {
+		return true
 	}
 
-	items := strings.Split(dir, "/")
-	name := items[len(items)-2]
-	parent := strings.TrimSuffix(dir, name+"/")
-	return gormutil.DB().Where("uid=? and name=? and parent=?", uid, name, parent).First(&model.Matter{}).RecordNotFound()
+	return false
 }
 
 func FileGet(alias string) (*model.Matter, error) {
@@ -78,7 +87,7 @@ func (m *Matter) SetType(mt string) {
 }
 
 func (m *Matter) Find(offset, limit int) (list []model.Matter, total int64, err error) {
-	sn := gormutil.DB().Where(m.query, m.params...).Debug()
+	sn := gormutil.DB().Where(m.query, m.params...)
 	sn.Model(model.Matter{}).Count(&total)
 	sn = sn.Order("dirtype desc")
 	err = sn.Offset(offset).Limit(limit).Find(&list).Error