stash/internal/api/images.go

135 lines
2.7 KiB
Go

package api
import (
"errors"
"fmt"
"io"
"io/fs"
"os"
"strings"
"github.com/stashapp/stash/internal/static"
"github.com/stashapp/stash/pkg/hash"
"github.com/stashapp/stash/pkg/logger"
"github.com/stashapp/stash/pkg/models"
)
type imageBox struct {
box fs.FS
files []string
}
var imageBoxExts = []string{
".jpg",
".jpeg",
".png",
".gif",
".svg",
".webp",
}
func newImageBox(box fs.FS) (*imageBox, error) {
ret := &imageBox{
box: box,
}
err := fs.WalkDir(box, ".", func(path string, d fs.DirEntry, err error) error {
if err != nil {
return err
}
if d.IsDir() {
return nil
}
baseName := strings.ToLower(d.Name())
for _, ext := range imageBoxExts {
if strings.HasSuffix(baseName, ext) {
ret.files = append(ret.files, path)
break
}
}
return nil
})
return ret, err
}
func (box *imageBox) GetRandomImageByName(name string) ([]byte, error) {
files := box.files
if len(files) == 0 {
return nil, errors.New("box is empty")
}
index := hash.IntFromString(name) % uint64(len(files))
img, err := box.box.Open(files[index])
if err != nil {
return nil, err
}
defer img.Close()
return io.ReadAll(img)
}
var performerBox *imageBox
var performerBoxMale *imageBox
var performerBoxCustom *imageBox
func init() {
var err error
performerBox, err = newImageBox(static.Sub(static.Performer))
if err != nil {
panic(fmt.Sprintf("loading performer images: %v", err))
}
performerBoxMale, err = newImageBox(static.Sub(static.PerformerMale))
if err != nil {
panic(fmt.Sprintf("loading male performer images: %v", err))
}
}
func initCustomPerformerImages(customPath string) {
if customPath != "" {
logger.Debugf("Loading custom performer images from %s", customPath)
var err error
performerBoxCustom, err = newImageBox(os.DirFS(customPath))
if err != nil {
logger.Warnf("error loading custom performer images from %s: %v", customPath, err)
}
} else {
performerBoxCustom = nil
}
}
func getDefaultPerformerImage(name string, gender *models.GenderEnum) []byte {
// try the custom box first if we have one
if performerBoxCustom != nil {
ret, err := performerBoxCustom.GetRandomImageByName(name)
if err == nil {
return ret
}
logger.Warnf("error loading custom default performer image: %v", err)
}
var g models.GenderEnum
if gender != nil {
g = *gender
}
var box *imageBox
switch g {
case models.GenderEnumFemale, models.GenderEnumTransgenderFemale:
box = performerBox
case models.GenderEnumMale, models.GenderEnumTransgenderMale:
box = performerBoxMale
default:
box = performerBox
}
ret, err := box.GetRandomImageByName(name)
if err != nil {
logger.Warnf("error loading default performer image: %v", err)
}
return ret
}