package streamer

import (
	"fmt"
	c "live-streamer/config"
	"path/filepath"
	"strings"

	"go.uber.org/zap"
)

func buildFFmpegArgs(videoItem c.InputItem) []string {
	videoPath := videoItem.Path

	args := []string{"-re"}
	if videoItem.Start != "" {
		args = append(args, "-ss", videoItem.Start)
	}

	if videoItem.End != "" {
		args = append(args, "-to", videoItem.End)
	}

	args = append(args,
		"-i", videoPath,
	)

	for k, v := range config.Play {
		args = append(args, k)
		if str, ok := v.(string); ok {
			filename := strings.TrimSuffix(filepath.Base(videoPath), filepath.Ext(videoPath))
			str = strings.ReplaceAll(str, "{{filepath}}", videoPath)
			str = strings.ReplaceAll(str, "{{filename}}", filename)
			args = append(args, str)
		} else {
			args = append(args, fmt.Sprint(v))
		}
	}

	args = append(args, fmt.Sprintf("%s/%s", config.Output.RTMPServer, config.Output.StreamKey))

	log.Debug("build ffmpeg", zap.Strings("args", args))

	return args
}