package main

import (
	"os"
	"path/filepath"

	tea "github.com/charmbracelet/bubbletea"
)

type versionInfo struct {
	name string
	path string
}

type versionsFoundMsg []versionInfo
type scanErrorMsg struct{ err error }

func scanVersions(exeDir string) tea.Cmd {
	return func() tea.Msg {
		pattern := filepath.Join(exeDir, ".minecraft", "versions", "*")
		matches, err := filepath.Glob(pattern)
		if err != nil {
			return scanErrorMsg{err: err}
		}

		var versions []versionInfo
		for _, m := range matches {
			info, err := os.Stat(m)
			if err != nil || !info.IsDir() {
				continue
			}
			versions = append(versions, versionInfo{
				name: filepath.Base(m),
				path: m,
			})
		}
		return versionsFoundMsg(versions)
	}
}