package run

import (
	"errors"
	"github.com/ewy1/pik/model"
	"github.com/ewy1/pik/spool"
	"os"
	"os/exec"
)

var NoEditorError = errors.New("$EDITOR not set")

func Edit(t model.Target, src *model.Source) *spool.ExitCode {
	editor := os.Getenv("EDITOR")
	if editor == "" {
		return &spool.NoEditorFailure
	}
	cmd := exec.Command(editor, t.File(src))
	cmd.Stdin = os.Stdin
	cmd.Stdout = os.Stdout
	cmd.Stderr = os.Stderr
	cmd.Dir = src.Path
	err := cmd.Run()
	code := 0
	msg := ""
	var ex *exec.ExitError
	if errors.As(err, &ex) {
		code = ex.ExitCode()
		msg = ex.String()
	}
	return &spool.ExitCode{
		Value:   code,
		Message: msg,
	}
}