- 在扫描页面添加目录输入框和选择按钮 - 实现文件系统浏览器,支持Windows盘符和目录浏览 - 添加扫描目录参数传递到后端服务 - 显示当前扫描目录路径信息 - 修复前端空数组访问错误 - 更新文档说明扫描功能变化
364 lines
12 KiB
Go
364 lines
12 KiB
Go
// Package store 提供媒体信息的 SQLite 持久化(xorm + 纯 Go 驱动,免 CGO)。
|
|
package store
|
|
|
|
import (
|
|
"database/sql"
|
|
"fmt"
|
|
"path/filepath"
|
|
"sort"
|
|
"time"
|
|
|
|
"kenaito-media-picker/internal/classify"
|
|
|
|
sqlite "github.com/glebarez/go-sqlite"
|
|
"xorm.io/xorm"
|
|
)
|
|
|
|
// DBFileName 数据库文件名(存放于被整理目录的根目录,扫描时跳过)
|
|
const DBFileName = "media-info.db"
|
|
|
|
// init 将纯Go的sqlite驱动注册为 xorm 认识的 sqlite3 驱动名(避免CGO依赖)
|
|
func init() {
|
|
sql.Register("sqlite3", &sqlite.Driver{})
|
|
}
|
|
|
|
// MediaInfo 媒体文件信息记录,按字段拆分存放,便于查询
|
|
type MediaInfo struct {
|
|
Id int64 `xorm:"pk autoincr 'id'" json:"id"`
|
|
FileMd5 string `xorm:"char(32) index 'file_md5'" json:"fileMd5"` // 文件MD5,唯一标识
|
|
FilePath string `xorm:"text 'file_path'" json:"filePath"` // 扫描时的源路径
|
|
FileName string `xorm:"varchar(255) 'file_name'" json:"fileName"` // 文件名(含扩展名)
|
|
FileExt string `xorm:"varchar(32) 'file_ext'" json:"fileExt"` // 扩展名
|
|
FileSize int64 `xorm:"bigint 'file_size'" json:"fileSize"` // 文件大小(字节)
|
|
MimeType string `xorm:"varchar(128) 'mime_type'" json:"mimeType"` // MIME类型
|
|
MediaType string `xorm:"varchar(16) index 'media_type'" json:"mediaType"` // image/video/audio
|
|
Width int `xorm:"int index 'width'" json:"width"` // 宽(像素)
|
|
Height int `xorm:"int index 'height'" json:"height"` // 高(像素)
|
|
Duration float64 `xorm:"real 'duration'" json:"duration"` // 时长(秒)
|
|
Codec string `xorm:"varchar(64) 'codec'" json:"codec"` // 视频编码,如h264/hevc
|
|
Format string `xorm:"varchar(64) 'format'" json:"format"` // 容器格式,如mp4/mkv
|
|
RawInfo string `xorm:"text 'raw_info'" json:"rawInfo"` // ffprobe原始JSON(完整信息兜底)
|
|
HeadMd5 string `xorm:"char(32) index('idx_fp') 'head_md5'" json:"headMd5"` // 文件头256KB的MD5(指纹加速)
|
|
TailMd5 string `xorm:"char(32) index('idx_fp') 'tail_md5'" json:"tailMd5"` // 文件尾256KB的MD5(指纹加速)
|
|
Category string `xorm:"varchar(64) index 'category'" json:"category"` // 归类的目录名(去向)
|
|
DestDir string `xorm:"text 'dest_dir'" json:"destDir"` // 移动后的目录路径(去向)
|
|
CreatedAt time.Time `xorm:"created 'created_at'" json:"createdAt"` // 首次入库时间
|
|
UpdatedAt time.Time `xorm:"updated 'updated_at'" json:"updatedAt"` // 最近更新时间
|
|
}
|
|
|
|
// Store 封装 SQLite 存取,按实例持有连接,不再依赖全局状态
|
|
type Store struct {
|
|
engine *xorm.Engine
|
|
}
|
|
|
|
// Open 打开(或创建)数据库并同步表结构
|
|
func Open(dbPath string) (*Store, error) {
|
|
e, err := xorm.NewEngine("sqlite3", dbPath)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
e.ShowSQL(false)
|
|
e.SetMaxOpenConns(1) // sqlite同一时刻只允许一个写连接
|
|
if err := e.Sync(new(MediaInfo)); err != nil {
|
|
_ = e.Close()
|
|
return nil, err
|
|
}
|
|
return &Store{engine: e}, nil
|
|
}
|
|
|
|
// Close 关闭数据库连接
|
|
func (s *Store) Close() error {
|
|
if s == nil || s.engine == nil {
|
|
return nil
|
|
}
|
|
err := s.engine.Close()
|
|
s.engine = nil
|
|
return err
|
|
}
|
|
|
|
// SaveMedia 按MD5去重保存/更新媒体信息
|
|
func (s *Store) SaveMedia(info *MediaInfo) error {
|
|
if s == nil || s.engine == nil {
|
|
return nil
|
|
}
|
|
existing := new(MediaInfo)
|
|
has, err := s.engine.Where("file_md5 = ?", info.FileMd5).Get(existing)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if has {
|
|
info.Id = existing.Id
|
|
_, err = s.engine.ID(existing.Id).Update(info)
|
|
return err
|
|
}
|
|
_, err = s.engine.Insert(info)
|
|
return err
|
|
}
|
|
|
|
// FindMediaByFingerprint 按 (文件大小 + 头256KB + 尾256KB) 查找已入库记录,避免对大文件重复计算全量MD5
|
|
func (s *Store) FindMediaByFingerprint(size int64, headMd5, tailMd5 string) (*MediaInfo, bool) {
|
|
if s == nil || s.engine == nil || headMd5 == "" || tailMd5 == "" {
|
|
return nil, false
|
|
}
|
|
info := new(MediaInfo)
|
|
has, err := s.engine.Where("file_size = ? AND head_md5 = ? AND tail_md5 = ?", size, headMd5, tailMd5).Get(info)
|
|
if err != nil || !has {
|
|
return nil, false
|
|
}
|
|
return info, true
|
|
}
|
|
|
|
// FindMediaByMd5 按文件MD5查找已入库记录(用于识别重复文件)
|
|
func (s *Store) FindMediaByMd5(md5 string) (*MediaInfo, bool) {
|
|
if s == nil || s.engine == nil || md5 == "" {
|
|
return nil, false
|
|
}
|
|
info := new(MediaInfo)
|
|
has, err := s.engine.Where("file_md5 = ?", md5).Get(info)
|
|
if err != nil || !has {
|
|
return nil, false
|
|
}
|
|
return info, true
|
|
}
|
|
|
|
// UpdateMediaDest 按源路径回填文件的归类目录与去向
|
|
func (s *Store) UpdateMediaDest(filePath, destDir string) error {
|
|
if s == nil || s.engine == nil {
|
|
return nil
|
|
}
|
|
_, err := s.engine.Where("file_path = ?", filePath).Update(&MediaInfo{
|
|
Category: filepath.Base(destDir),
|
|
DestDir: destDir,
|
|
})
|
|
return err
|
|
}
|
|
|
|
// MediaQuery 媒体库列表查询条件;空值表示不过滤
|
|
type MediaQuery struct {
|
|
MediaType string // image / video / audio
|
|
Orientation string // horizontal / vertical / square
|
|
Keyword string // 文件名模糊搜索
|
|
Codec string
|
|
Format string
|
|
Resolution string // 分辨率档位标签(标准后缀 / NK / 普通 / 原图)
|
|
Page int // 从 1 开始
|
|
PageSize int
|
|
SortField string // id / fileSize / width / height / duration / createdAt
|
|
SortOrder string // asc / desc
|
|
}
|
|
|
|
// ListMedia 按条件查询媒体列表(含分页排序)
|
|
func (s *Store) ListMedia(q MediaQuery) ([]MediaInfo, error) {
|
|
if s == nil || s.engine == nil {
|
|
return nil, nil
|
|
}
|
|
sess := s.newQuerySession(q)
|
|
defer sess.Close()
|
|
if order := sortColumn(q.SortField, q.SortOrder); order != "" {
|
|
sess.OrderBy(order)
|
|
} else {
|
|
sess.Desc("id")
|
|
}
|
|
if q.Page > 0 {
|
|
pageSize := q.PageSize
|
|
if pageSize <= 0 {
|
|
pageSize = 10
|
|
}
|
|
sess.Limit(pageSize, (q.Page-1)*pageSize)
|
|
}
|
|
list := make([]MediaInfo, 0)
|
|
err := sess.Find(&list)
|
|
return list, err
|
|
}
|
|
|
|
// CountMedia 统计满足条件的记录数(分页用)
|
|
func (s *Store) CountMedia(q MediaQuery) (int64, error) {
|
|
if s == nil || s.engine == nil {
|
|
return 0, nil
|
|
}
|
|
sess := s.newQuerySession(q)
|
|
defer sess.Close()
|
|
return sess.Count(new(MediaInfo))
|
|
}
|
|
|
|
// newQuerySession 创建带查询条件的会话
|
|
func (s *Store) newQuerySession(q MediaQuery) *xorm.Session {
|
|
sess := s.engine.NewSession()
|
|
cond, args := buildMediaCond(q)
|
|
if cond != "" {
|
|
sess.Where(cond, args...)
|
|
}
|
|
return sess
|
|
}
|
|
|
|
// buildMediaCond 根据查询条件构造 where 子句;返回 nil 表示无条件
|
|
func buildMediaCond(q MediaQuery) (string, []interface{}) {
|
|
var cond string
|
|
var args []interface{}
|
|
appendCond := func(fragment string, vals ...interface{}) {
|
|
if cond != "" {
|
|
cond += " AND "
|
|
}
|
|
cond += fragment
|
|
args = append(args, vals...)
|
|
}
|
|
if q.MediaType != "" {
|
|
appendCond("media_type = ?", q.MediaType)
|
|
}
|
|
switch q.Orientation {
|
|
case "horizontal":
|
|
appendCond("width > ? AND width > height", 0)
|
|
case "vertical":
|
|
appendCond("width > ? AND width < height", 0)
|
|
case "square":
|
|
appendCond("width > ? AND width = height", 0)
|
|
}
|
|
if q.Keyword != "" {
|
|
appendCond("file_name LIKE ?", "%"+q.Keyword+"%")
|
|
}
|
|
if q.Codec != "" {
|
|
appendCond("codec = ?", q.Codec)
|
|
}
|
|
if q.Format != "" {
|
|
appendCond("format = ?", q.Format)
|
|
}
|
|
if q.Resolution != "" {
|
|
if minLong, maxLong, exactW, exactH := classify.ResRange(q.Resolution); minLong >= 0 {
|
|
if exactW > 0 && exactH > 0 {
|
|
appendCond("(width = ? AND height = ?)", exactW, exactH)
|
|
} else if maxLong >= 0 {
|
|
appendCond("(max(width, height) >= ? AND max(width, height) < ?)", minLong, maxLong)
|
|
} else {
|
|
appendCond("max(width, height) >= ?", minLong)
|
|
}
|
|
}
|
|
}
|
|
if cond == "" {
|
|
return "", nil
|
|
}
|
|
return cond, args
|
|
}
|
|
|
|
// sortColumn 将排序字段白名单映射为数据库列名,避免 SQL 注入;返回 "" 表示不排序
|
|
func sortColumn(field, order string) string {
|
|
columns := map[string]string{
|
|
"id": "id",
|
|
"fileSize": "file_size",
|
|
"width": "width",
|
|
"height": "height",
|
|
"duration": "duration",
|
|
"createdAt": "created_at",
|
|
}
|
|
col, ok := columns[field]
|
|
if !ok {
|
|
return ""
|
|
}
|
|
if order == "desc" {
|
|
return col + " DESC"
|
|
}
|
|
return col + " ASC"
|
|
}
|
|
|
|
// MediaStats 媒体库统计结果
|
|
type MediaStats struct {
|
|
TotalFiles int64 `json:"totalFiles"`
|
|
TotalSize int64 `json:"totalSize"`
|
|
TypeCounts []KV `json:"typeCounts"` // image/video/audio 数量与体积
|
|
OrientCount []KV `json:"orientCount"` // horizontal/vertical/square 数量
|
|
ResCount []KV `json:"resCount"` // 分辨率档位数量
|
|
CodecCount []KV `json:"codecCount"` // 编码分布(视频)
|
|
FormatCount []KV `json:"formatCount"` // 容器格式分布
|
|
Duplicate int64 `json:"duplicate"` // 重复文件数(同一MD5出现多次的去重后计数)
|
|
DupSize int64 `json:"dupSize"` // 重复文件占用的总字节
|
|
TopLarge []KV `json:"topLarge"` // 体积最大的 10 个文件
|
|
}
|
|
|
|
// KV 统计键值对
|
|
type KV struct {
|
|
Key string `json:"key"`
|
|
Count int64 `json:"count"`
|
|
Size int64 `json:"size"`
|
|
}
|
|
|
|
// Stats 汇总媒体库统计信息
|
|
func (s *Store) Stats() (*MediaStats, error) {
|
|
if s == nil || s.engine == nil {
|
|
return &MediaStats{}, nil
|
|
}
|
|
st := &MediaStats{
|
|
ResCount: []KV{}, // 避免空库时返回 null,前端 .slice 直接可用
|
|
}
|
|
|
|
if total, err := s.engine.Count(new(MediaInfo)); err == nil {
|
|
st.TotalFiles = total
|
|
}
|
|
var sizeTotal struct {
|
|
Size int64 `xorm:"size"`
|
|
}
|
|
if _, err := s.engine.SQL("SELECT COALESCE(SUM(file_size),0) AS size FROM media_info").Get(&sizeTotal); err == nil {
|
|
st.TotalSize = sizeTotal.Size
|
|
}
|
|
|
|
// 类型统计(数量 + 体积)
|
|
typeRows := make([]KV, 0)
|
|
if err := s.engine.SQL("SELECT media_type AS key, COUNT(*) AS count, COALESCE(SUM(file_size),0) AS size FROM media_info GROUP BY media_type ORDER BY count DESC").Find(&typeRows); err == nil {
|
|
st.TypeCounts = typeRows
|
|
}
|
|
// 方向统计(仅含有效尺寸的图片/视频)
|
|
orientRows := make([]KV, 0)
|
|
if err := s.engine.SQL("SELECT CASE WHEN width>height THEN 'horizontal' WHEN width<height THEN 'vertical' ELSE 'square' END AS key, COUNT(*) AS count, COALESCE(SUM(file_size),0) AS size FROM media_info WHERE width>0 AND height>0 GROUP BY 1 ORDER BY count DESC").Find(&orientRows); err == nil {
|
|
st.OrientCount = orientRows
|
|
}
|
|
// 编码 / 格式 / 分辨率 / 大文件统计
|
|
codecRows := make([]KV, 0)
|
|
if err := s.engine.SQL("SELECT COALESCE(NULLIF(codec,''),'未知') AS key, COUNT(*) AS count, COALESCE(SUM(file_size),0) AS size FROM media_info WHERE media_type='video' AND codec <> '' GROUP BY codec ORDER BY count DESC LIMIT 10").Find(&codecRows); err == nil {
|
|
st.CodecCount = codecRows
|
|
}
|
|
formatRows := make([]KV, 0)
|
|
if err := s.engine.SQL("SELECT COALESCE(NULLIF(format,''),'未知') AS key, COUNT(*) AS count, COALESCE(SUM(file_size),0) AS size FROM media_info WHERE format <> '' GROUP BY format ORDER BY count DESC LIMIT 10").Find(&formatRows); err == nil {
|
|
st.FormatCount = formatRows
|
|
}
|
|
largeRows := make([]KV, 0)
|
|
if err := s.engine.SQL("SELECT file_name AS key, 1 AS count, file_size AS size FROM media_info ORDER BY file_size DESC LIMIT 10").Find(&largeRows); err == nil {
|
|
st.TopLarge = largeRows
|
|
}
|
|
|
|
// 分辨率分布(Go 侧计算,复用归类规则)
|
|
resMap := make(map[string]int64)
|
|
rows, err := s.engine.SQL("SELECT width, height FROM media_info WHERE width>0 AND height>0").Query()
|
|
if err != nil {
|
|
return st, err
|
|
}
|
|
for _, row := range rows {
|
|
var w, h int
|
|
if _, err := fmt.Sscanf(string(row["width"]), "%d", &w); err == nil {
|
|
if _, err := fmt.Sscanf(string(row["height"]), "%d", &h); err == nil {
|
|
label := classify.ResLabel(w, h)
|
|
if label == "" {
|
|
label = "未知"
|
|
}
|
|
resMap[label]++
|
|
}
|
|
}
|
|
}
|
|
for k, v := range resMap {
|
|
st.ResCount = append(st.ResCount, KV{Key: k, Count: v})
|
|
}
|
|
sortKVs(st.ResCount)
|
|
|
|
// 重复文件统计(同一 MD5 出现多次)
|
|
dupRows := make([]KV, 0)
|
|
if err := s.engine.SQL("SELECT file_md5 AS key, COUNT(*) AS count, COALESCE(SUM(file_size),0) AS size FROM media_info GROUP BY file_md5 HAVING COUNT(*)>1").Find(&dupRows); err == nil {
|
|
for _, r := range dupRows {
|
|
st.Duplicate += r.Count - 1
|
|
st.DupSize += r.Size - r.Size/r.Count // 近似:等量分配单份体积
|
|
}
|
|
}
|
|
return st, nil
|
|
}
|
|
|
|
// sortKVs 按 count 降序排序
|
|
func sortKVs(list []KV) {
|
|
sort.Slice(list, func(i, j int) bool { return list[i].Count > list[j].Count })
|
|
}
|