package main

import (
    "os"
    "path/filepath"
    "time"
)

const NUM_WORKERS = 5

var sourceFileChan = make(chan SourceFile)

type SourceFile struct {
    Path     string
    Date     string
    PresetID int
}

func listFunc(path string, file os.FileInfo, err error) error {
    if err != nil {
        println("ERROR BLYA", err.Error())
    }
    source := SourceFile{Path: path}
    sourceFileChan <- source
    return nil
}
func converter() {
    for conv := range sourceFileChan {
        println("Имитация бурной деятельности ", conv.Path)
        time.Sleep(5 * time.Second)
    }
}

func main() {
    for i := 0; i < NUM_WORKERS; i++ {
        go converter()
    }
    for {
        filepath.Walk(os.Args[1], listFunc)
        time.Sleep(1 * time.Second)
    }

}