package tools

import (
	"io/fs"
	"os"
	"path/filepath"
	"strconv"
	"time"
	"velvettear/gosync/log"
	"velvettear/gosync/settings"
)

var sourceFiles []string

// unexported function(s)
func getSourceFiles() []string {
	timestamp := time.Now()
	stats, error := os.Stat(settings.Source)
	if error != nil {
		log.Error("encountered an error getting the stats for the source", error.Error())
	}
	if stats.IsDir() {
		log.Info("scanning source...", settings.Source)
		filepath.WalkDir(settings.Source, fillSourceFiles)
		log.InfoTimed("found "+strconv.Itoa(len(sourceFiles))+" source files", timestamp.UnixMilli())
	} else {
		sourceFiles = append(sourceFiles, settings.Source)
	}
	return sourceFiles
}

func fillSourceFiles(path string, dir fs.DirEntry, err error) error {
	if err != nil {
		return err
	}
	if dir.IsDir() {
		return nil
	}
	sourceFiles = append(sourceFiles, path)
	return nil
}