package main

import (
	"fmt"

	ffmpeg "github.com/u2takey/ffmpeg-go"
)

func buildFFmpegCall(ut *Utterance) string {
	return fmt.Sprintf(
		`yes no | ffmpeg -i "%s" -ss %s -to %s \
		-metadata text_source="%s" \
		-ar 22050 "%s"`,
		ut.FD.AudioPath, ut.LeftTime, ut.RightTime,
		ut.FD.VttPath, ut.OutPath,
	)
}

func cutoutClipAndTranscode(ut *Utterance) error {
	err := ffmpeg.Input(ut.FD.AudioPath,
		ffmpeg.KwArgs{
			"ss": ut.LeftTime,
			"to": ut.RightTime,
		},
	).Output(ut.OutPath, ffmpeg.KwArgs{
		// "ar":       "22050",
		"metadata": fmt.Sprintf(`source="%s"`, ut.FD.VttPath),
	}).OverWriteOutput().ErrorToStdOut().Run()
	return err
}

func cutOnEqualParts(filepath, outname, segment string) error {
	err := ffmpeg.Input(filepath).
		Output(outname+"_%02d.opus",
			ffmpeg.KwArgs{
				"c":                "copy",
				"map":              0,
				"segment_time":     segment,
				"f":                "segment",
				"reset_timestamps": 1,
			}).
		OverWriteOutput().ErrorToStdOut().Run()
	return err
}