vvval / go-metadata-scanner

package writecmd

import (

	"github.com/vvval/go-metadata-scanner/etool"

	"github.com/vvval/go-metadata-scanner/util"

	"github.com/vvval/go-metadata-scanner/util/scan"

	"github.com/vvval/go-metadata-scanner/vars"

)

func Work(job *Job, append, originals bool, extensions []string, files *vars.Chunk, filesData *[]vars.File) ([]byte, error) {

	filename, found := scan.Candidates(job.Filename(), files, extensions)

	if !found {

		return []byte{}, NoFileErr

	}

	if append {

		if file, found := findScanned(filename, filesData); found {

			job.MergePayload(file.Tags())

		}

	}

	if !job.HasPayload() {

		return []byte{}, SkipFileErr

	}

	payload := job.Payload()

	result, err := etool.Write(

		filename,

		payload.Tags(),

		payload.UseSeparator(),

		originals,

	)

	return result, err

}

func findScanned(filename string, files *[]vars.File) (vars.File, bool) {

	for _, file := range *files {

		if util.PathsEqual(file.Filename(), filename) {

			return file, true

		}

	}

	return vars.File{}, false

}