package executer

import (
	"os"
	"path/filepath"
	"runtime/pprof"
)

type Profiler struct {
	File        string
	filePointer *os.File
}

func (p *Profiler) Start() error {
	absPath, err := filepath.Abs(p.File)
	if err != nil {
		return err
	}

	err = os.MkdirAll(filepath.Dir(absPath), 0777)
	if err != nil {
		return err
	}

	p.filePointer, err = os.Create(absPath)
	if err != nil {
		return err
	}

	if err = pprof.StartCPUProfile(p.filePointer); err != nil {
		return err
	}

	return nil
}

func (p *Profiler) End() {
	pprof.StopCPUProfile()
	p.filePointer.Close()
}