photoprism/internal/entity/photo_title.go

255 lines
8.1 KiB
Go

package entity
import (
"fmt"
"path/filepath"
"strings"
"time"
"github.com/dustin/go-humanize/english"
"github.com/photoprism/photoprism/internal/classify"
"github.com/photoprism/photoprism/pkg/fs"
"github.com/photoprism/photoprism/pkg/txt"
)
// HasTitle checks if the photo has a title.
func (m *Photo) HasTitle() bool {
return m.PhotoTitle != ""
}
// NoTitle checks if the photo has no Title
func (m *Photo) NoTitle() bool {
return m.PhotoTitle == ""
}
// SetTitle changes the photo title and clips it to 300 characters.
func (m *Photo) SetTitle(title, source string) {
title = txt.Shorten(title, txt.ClipTitle, txt.Ellipsis)
if title == "" {
return
}
if (SrcPriority[source] < SrcPriority[m.TitleSrc]) && m.HasTitle() {
return
}
m.PhotoTitle = title
m.TitleSrc = source
}
// UpdateTitle updated the photo title based on location and labels.
func (m *Photo) UpdateTitle(labels classify.Labels) error {
if m.TitleSrc != SrcAuto && m.HasTitle() {
return fmt.Errorf("photo %s: keeping %s title %s", txt.Quote(m.PhotoUID), SrcString(m.TitleSrc), txt.Quote(m.PhotoTitle))
}
var names string
var knownLocation bool
start := time.Now()
oldTitle := m.PhotoTitle
fileTitle := m.FileTitle()
people := m.SubjectNames()
m.UpdateDescription(people)
if n := len(people); n > 0 && n < 4 {
names = txt.JoinNames(people, true)
}
if m.LocationLoaded() {
knownLocation = true
loc := m.Cell
// TODO: User defined title format
if names != "" {
log.Debugf("photo %s: generating title from %s (%s)", txt.Quote(m.PhotoUID), english.Plural(len(people), "person", "people"), txt.Quote(names))
if l := len([]rune(names)); l > 35 {
m.SetTitle(names, SrcAuto)
} else if l > 20 && (loc.NoCity() || loc.LongCity()) {
m.SetTitle(fmt.Sprintf("%s / %s", names, m.TakenAt.Format("2006")), SrcAuto)
} else if l > 20 {
m.SetTitle(fmt.Sprintf("%s / %s", names, loc.City()), SrcAuto)
} else if loc.NoCity() || loc.LongCity() {
m.SetTitle(fmt.Sprintf("%s / %s / %s", names, loc.CountryName(), m.TakenAt.Format("2006")), SrcAuto)
} else {
m.SetTitle(fmt.Sprintf("%s / %s / %s", names, loc.City(), m.TakenAt.Format("2006")), SrcAuto)
}
} else if title := labels.Title(loc.Name()); title != "" {
log.Debugf("photo %s: generating title from label %s", txt.Quote(m.PhotoUID), txt.Quote(title))
if loc.NoCity() || loc.LongCity() || loc.CityContains(title) {
m.SetTitle(fmt.Sprintf("%s / %s / %s", txt.Title(title), loc.CountryName(), m.TakenAt.Format("2006")), SrcAuto)
} else {
m.SetTitle(fmt.Sprintf("%s / %s / %s", txt.Title(title), loc.City(), m.TakenAt.Format("2006")), SrcAuto)
}
} else if loc.Name() != "" && loc.City() != "" {
if len(loc.Name()) > 45 {
m.SetTitle(txt.Title(loc.Name()), SrcAuto)
} else if len(loc.Name()) > 20 || len(loc.City()) > 16 || strings.Contains(loc.Name(), loc.City()) {
m.SetTitle(fmt.Sprintf("%s / %s", loc.Name(), m.TakenAt.Format("2006")), SrcAuto)
} else {
m.SetTitle(fmt.Sprintf("%s / %s / %s", loc.Name(), loc.City(), m.TakenAt.Format("2006")), SrcAuto)
}
} else if loc.City() != "" && loc.CountryName() != "" {
if len(loc.City()) > 20 {
m.SetTitle(fmt.Sprintf("%s / %s", loc.City(), m.TakenAt.Format("2006")), SrcAuto)
} else {
m.SetTitle(fmt.Sprintf("%s / %s / %s", loc.City(), loc.CountryName(), m.TakenAt.Format("2006")), SrcAuto)
}
}
} else if m.PlaceLoaded() {
knownLocation = true
if names != "" {
log.Debugf("photo %s: generating title from %s (%s)", txt.Quote(m.PhotoUID), english.Plural(len(people), "person", "people"), txt.Quote(names))
if l := len([]rune(names)); l > 35 {
m.SetTitle(names, SrcAuto)
} else if l > 20 && (m.Place.NoCity() || m.Place.LongCity()) {
m.SetTitle(fmt.Sprintf("%s / %s", names, m.TakenAt.Format("2006")), SrcAuto)
} else if l > 20 {
m.SetTitle(fmt.Sprintf("%s / %s", names, m.Place.City()), SrcAuto)
} else if m.Place.NoCity() || m.Place.LongCity() {
m.SetTitle(fmt.Sprintf("%s / %s / %s", names, m.Place.CountryName(), m.TakenAt.Format("2006")), SrcAuto)
} else {
m.SetTitle(fmt.Sprintf("%s / %s / %s", names, m.Place.City(), m.TakenAt.Format("2006")), SrcAuto)
}
} else if title := labels.Title(fileTitle); title != "" {
log.Debugf("photo %s: generating title from label %s", txt.Quote(m.PhotoUID), txt.Quote(title))
if m.Place.NoCity() || m.Place.LongCity() || m.Place.CityContains(title) {
m.SetTitle(fmt.Sprintf("%s / %s / %s", txt.Title(title), m.Place.CountryName(), m.TakenAt.Format("2006")), SrcAuto)
} else {
m.SetTitle(fmt.Sprintf("%s / %s / %s", txt.Title(title), m.Place.City(), m.TakenAt.Format("2006")), SrcAuto)
}
} else if m.Place.City() != "" && m.Place.CountryName() != "" {
if len(m.Place.City()) > 20 {
m.SetTitle(fmt.Sprintf("%s / %s", m.Place.City(), m.TakenAt.Format("2006")), SrcAuto)
} else {
m.SetTitle(fmt.Sprintf("%s / %s / %s", m.Place.City(), m.Place.CountryName(), m.TakenAt.Format("2006")), SrcAuto)
}
}
}
if !knownLocation || m.NoTitle() {
if names != "" {
if len([]rune(names)) <= 35 && m.TakenSrc != SrcAuto {
m.SetTitle(fmt.Sprintf("%s / %s", names, m.TakenAt.Format("2006")), SrcAuto)
} else {
m.SetTitle(names, SrcAuto)
}
} else if fileTitle == "" && len(labels) > 0 && labels[0].Priority >= -1 && labels[0].Uncertainty <= 85 && labels[0].Name != "" {
if m.TakenSrc != SrcAuto {
m.SetTitle(fmt.Sprintf("%s / %s", txt.Title(labels[0].Name), m.TakenAt.Format("2006")), SrcAuto)
} else {
m.SetTitle(txt.Title(labels[0].Name), SrcAuto)
}
} else if fileTitle != "" && len(fileTitle) <= 20 && !m.TakenAtLocal.IsZero() && m.TakenSrc != SrcAuto {
m.SetTitle(fmt.Sprintf("%s / %s", fileTitle, m.TakenAtLocal.Format("2006")), SrcAuto)
} else if fileTitle != "" {
m.SetTitle(fileTitle, SrcAuto)
} else {
if m.TakenSrc != SrcAuto {
m.SetTitle(fmt.Sprintf("%s / %s", UnknownTitle, m.TakenAt.Format("2006")), SrcAuto)
} else {
m.SetTitle(UnknownTitle, SrcAuto)
}
}
}
if m.PhotoTitle != oldTitle {
log.Debugf("photo %s: changed title to %s [%s]", txt.Quote(m.PhotoUID), txt.Quote(m.PhotoTitle), time.Since(start))
}
return nil
}
// UpdateAndSaveTitle updates the photo title and saves it.
func (m *Photo) UpdateAndSaveTitle() error {
if !m.HasID() {
return fmt.Errorf("can't save photo whithout id")
}
m.PhotoFaces = m.FaceCount()
labels := m.ClassifyLabels()
m.UpdateDateFields()
if err := m.UpdateTitle(labels); err != nil {
log.Info(err)
}
details := m.GetDetails()
w := txt.UniqueWords(txt.Words(details.Keywords))
w = append(w, labels.Keywords()...)
details.Keywords = strings.Join(txt.UniqueWords(w), ", ")
if err := m.IndexKeywords(); err != nil {
log.Errorf("photo: %s", err.Error())
}
if err := m.Save(); err != nil {
return err
}
return nil
}
// UpdateDescription updates the photo descriptions based on available metadata.
func (m *Photo) UpdateDescription(people []string) {
if m.DescriptionSrc != SrcAuto {
return
}
// Add subject names to description when there's more than one person.
if len(people) > 3 {
m.PhotoDescription = txt.JoinNames(people, false)
} else {
m.PhotoDescription = ""
}
}
// FileTitle returns a photo title based on the file name and/or path.
func (m *Photo) FileTitle() string {
// Generate title based on photo name, if not generated:
if !fs.IsGenerated(m.PhotoName) {
if title := txt.FileTitle(m.PhotoName); title != "" {
return title
}
}
// Generate title based on original file name, if any:
if m.OriginalName != "" {
if title := txt.FileTitle(m.OriginalName); !fs.IsGenerated(m.OriginalName) && title != "" {
return title
} else if title := txt.FileTitle(filepath.Dir(m.OriginalName)); title != "" {
return title
}
}
// Generate title based on photo path, if any:
if m.PhotoPath != "" && !fs.IsGenerated(m.PhotoPath) {
return txt.FileTitle(m.PhotoPath)
}
return ""
}
// SubjectNames returns all known subject names.
func (m *Photo) SubjectNames() []string {
if f, err := m.PrimaryFile(); err == nil {
return f.SubjectNames()
}
return nil
}
// SubjectKeywords returns keywords for all known subject names.
func (m *Photo) SubjectKeywords() []string {
return txt.Words(strings.Join(m.SubjectNames(), " "))
}