package app

import (
	"path/filepath"
	"strings"
)

func (a *App) projectDirFor(p Project) (string, error) {
	homeDir, err := homeForUnixUser(p.UnixUser)
	if err != nil {
		return "", err
	}
	tpl := strings.TrimSpace(a.cfg.ProjectRoot)
	if tpl == "" {
		tpl = "$HOME/projects/$app"
	}
	path := tpl
	path = strings.ReplaceAll(path, "${HOME}", homeDir)
	path = strings.ReplaceAll(path, "$HOME", homeDir)
	path = strings.ReplaceAll(path, "${app}", p.Slug)
	path = strings.ReplaceAll(path, "$app", p.Slug)
	if strings.HasPrefix(path, "~/") {
		path = filepath.Join(homeDir, strings.TrimPrefix(path, "~/"))
	}
	if !filepath.IsAbs(path) {
		path = filepath.Join(homeDir, path)
	}
	return filepath.Clean(path), nil
}