129 lines
3.2 KiB
Go
129 lines
3.2 KiB
Go
package entity
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import (
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"strings"
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"time"
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"github.com/photoprism/photoprism/pkg/txt"
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)
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// TrustedTime tests if the photo has a known date and time from a trusted source.
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func (m *Photo) TrustedTime() bool {
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if SrcPriority[m.TakenSrc] <= SrcPriority[SrcEstimate] {
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return false
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} else if m.TakenAt.IsZero() || m.TakenAtLocal.IsZero() {
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return false
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} else if m.TimeZone == "" {
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return false
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}
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return true
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}
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// SetTakenAt changes the photo date if not empty and from the same source.
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func (m *Photo) SetTakenAt(taken, local time.Time, zone, source string) {
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if taken.IsZero() || taken.Year() < 1000 || taken.Year() > txt.YearMax {
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return
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}
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if SrcPriority[source] < SrcPriority[m.TakenSrc] && !m.TakenAt.IsZero() {
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return
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}
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// Remove time zone if time was extracted from file name.
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if source == SrcName {
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zone = ""
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}
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// Round times to avoid jitter.
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taken = taken.UTC().Truncate(time.Second)
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// Default local time to taken if zero or invalid.
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if local.IsZero() || local.Year() < 1000 {
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local = taken
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} else {
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local = local.Truncate(time.Second)
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}
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// Don't update older date.
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if SrcPriority[source] <= SrcPriority[SrcAuto] && !m.TakenAt.IsZero() && taken.After(m.TakenAt) {
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return
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}
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// Set UTC time and date source.
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m.TakenAt = taken
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m.TakenAtLocal = local
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m.TakenSrc = source
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if zone == time.UTC.String() && m.TimeZone != "" {
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// Location exists, set local time from UTC.
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m.TakenAtLocal = m.GetTakenAtLocal()
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} else if zone != "" {
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// Apply new time zone.
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m.TimeZone = zone
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m.TakenAt = m.GetTakenAt()
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} else if m.TimeZoneUTC() {
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// Local is UTC.
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m.TimeZone = zone
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m.TakenAtLocal = taken
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} else if m.TimeZone != "" {
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// Apply existing time zone.
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m.TakenAt = m.GetTakenAt()
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}
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m.UpdateDateFields()
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}
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// TimeZoneUTC tests if the current time zone is UTC.
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func (m *Photo) TimeZoneUTC() bool {
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return strings.EqualFold(m.TimeZone, time.UTC.String())
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}
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// UpdateTimeZone updates the time zone.
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func (m *Photo) UpdateTimeZone(zone string) {
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if zone == "" || zone == time.UTC.String() || zone == m.TimeZone {
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return
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}
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if SrcPriority[m.TakenSrc] >= SrcPriority[SrcManual] && m.TimeZone != "" {
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return
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}
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if m.TimeZoneUTC() {
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m.TimeZone = zone
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m.TakenAtLocal = m.GetTakenAtLocal()
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} else {
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m.TimeZone = zone
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m.TakenAt = m.GetTakenAt()
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}
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}
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// UpdateDateFields updates internal date fields.
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func (m *Photo) UpdateDateFields() {
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if m.TakenAt.IsZero() || m.TakenAt.Year() < 1000 {
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return
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}
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if m.TakenAtLocal.IsZero() || m.TakenAtLocal.Year() < 1000 {
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m.TakenAtLocal = m.TakenAt
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}
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// Set date to unknown if file system date is about the same as indexing time.
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if m.TakenSrc == SrcAuto && m.TakenAt.After(m.CreatedAt.Add(-24*time.Hour)) {
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m.PhotoYear = UnknownYear
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m.PhotoMonth = UnknownMonth
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m.PhotoDay = UnknownDay
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} else if m.TakenSrc != SrcManual {
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m.PhotoYear = m.TakenAtLocal.Year()
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m.PhotoMonth = int(m.TakenAtLocal.Month())
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m.PhotoDay = m.TakenAtLocal.Day()
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}
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// Update photo_taken_at column in related files.
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Log("photo", "update date fields",
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UnscopedDb().Model(File{}).
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Where("photo_id = ? AND photo_taken_at <> ?", m.ID, m.TakenAtLocal).
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Updates(File{PhotoTakenAt: m.TakenAtLocal}).Error,
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)
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}
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