package wand

import "os"

type Cmd struct {
	name          string
	impl          any
	subcommands   []Cmd
	isDefault     bool
	minPositional int
	maxPositional int
	shortForms    []string
	description   string
	isHelp        bool
	helpRequested bool
}

func Command(name string, impl any, subcmds ...Cmd) Cmd {
	return command(name, impl, subcmds...)
}

func Default(cmd Cmd) Cmd {
	cmd.isDefault = true
	return cmd
}

// io doesn't count
func Args(cmd Cmd, min, max int) Cmd {
	cmd.minPositional = min
	cmd.maxPositional = max
	return cmd
}

func ShortForm(cmd Cmd, f ...string) Cmd {
	cmd.shortForms = f
	return cmd
}

func Exec(impl any) {
	cmd := wrap(impl)
	exec(os.Stdout, os.Stderr, os.Exit, cmd, os.Environ(), os.Args)
}