Lat       float64 `json:"lat" jsonschema:"Latitude for night filtering (required with Night)"`
	Lng       float64 `json:"lng" jsonschema:"Longitude for night filtering (required with Night)"`
	Timezone  string  `json:"timezone" jsonschema:"IANA timezone ID for filename timestamps (e.g. Pacific/Auckland). Required for non-AudioMoth recorders when using --night"`

	Day       bool    `json:"day" jsonschema:"Only clip recordings made during solar day (requires Lat and Lng)"`
	Lat       float64 `json:"lat" jsonschema:"Latitude for day/night filtering (required with Night or Day)"`
	Lng       float64 `json:"lng" jsonschema:"Longitude for day/night filtering (required with Night or Day)"`
	Timezone  string  `json:"timezone" jsonschema:"IANA timezone ID for filename timestamps (e.g. Pacific/Auckland). Required for non-AudioMoth recorders when using --night or --day"`

	DaySkipped      int      `json:"day_skipped,omitempty"`

			clips, skipped, errs := processFile(dataPath, input.Output, input.Prefix, input.Filter, speciesName, callType, input.Certainty, imgSize, input.Color, input.WavOnly, input.Night, input.Lat, input.Lng, input.Timezone)

			clips, skipped, errs := processFile(dataPath, input.Output, input.Prefix, input.Filter, speciesName, callType, input.Certainty, imgSize, input.Color, input.WavOnly, input.Night, input.Day, input.Lat, input.Lng, input.Timezone)

			output.NightSkipped += skipped

			if input.Night {
				output.NightSkipped += skipped
			} else {
				output.DaySkipped += skipped
			}

					clips, skipped, errs := processFile(dataPath, input.Output, input.Prefix, input.Filter, speciesName, callType, input.Certainty, imgSize, input.Color, input.WavOnly, input.Night, input.Lat, input.Lng, input.Timezone)

					clips, skipped, errs := processFile(dataPath, input.Output, input.Prefix, input.Filter, speciesName, callType, input.Certainty, imgSize, input.Color, input.WavOnly, input.Night, input.Day, input.Lat, input.Lng, input.Timezone)

			output.NightSkipped += r.skipped

			if input.Night {
				output.NightSkipped += r.skipped
			} else {
				output.DaySkipped += r.skipped
			}

// processFile processes a single .data file and returns generated clips, night-skipped count, and errors
func processFile(dataPath, outputDir, prefix, filter, speciesName, callType string, certainty, imgSize int, color, wavOnly, night bool, lat, lng float64, timezone string) ([]string, int, []string) {

// processFile processes a single .data file and returns generated clips, time-filter-skipped count, and errors
func processFile(dataPath, outputDir, prefix, filter, speciesName, callType string, certainty, imgSize int, color, wavOnly, night, day bool, lat, lng float64, timezone string) ([]string, int, []string) {

	// Night filter: check WAV header only (cheaper than reading full audio).
	// Skip daytime recordings before paying the cost of ReadWAVSamples.
	if night {

	// Day/night filter: check WAV header only (cheaper than reading full audio).
	// Skip recordings in the wrong time-of-day before paying the cost of ReadWAVSamples.
	if night || day {

		if !result.SolarNight {

		if night && !result.SolarNight {

		if day && result.SolarNight {
			fmt.Fprintf(os.Stderr, "skipped (nighttime): %s\n", wavPath)
			return nil, 1, nil
		}

	fmt.Fprintf(os.Stderr, "  --lat <float>      Latitude in decimal degrees (required with --night)\n")
	fmt.Fprintf(os.Stderr, "  --lng <float>      Longitude in decimal degrees (required with --night)\n")

	fmt.Fprintf(os.Stderr, "  --day              Only clip recordings made during solar day (requires --lat and --lng)\n")
	fmt.Fprintf(os.Stderr, "  --lat <float>      Latitude in decimal degrees (required with --night or --day)\n")
	fmt.Fprintf(os.Stderr, "  --lng <float>      Longitude in decimal degrees (required with --night or --day)\n")

	var color, wavOnly, night bool

	var color, wavOnly, night, day bool

		case "--day":
			day = true
			i++

	if night && (!latSet || !lngSet) {
		fmt.Fprintf(os.Stderr, "Error: --night requires both --lat and --lng\n\n")

	if night && day {
		fmt.Fprintf(os.Stderr, "Error: --night and --day are mutually exclusive\n\n")
		printClipUsage()
		os.Exit(1)
	}
	if (night || day) && (!latSet || !lngSet) {
		fmt.Fprintf(os.Stderr, "Error: --night/--day requires both --lat and --lng\n\n")

		Day:       day,