package main

import (
	"fmt"
	"strings"

	"go.wit.com/dev/alexflint/arg"
	"go.wit.com/lib/protobuf/argvpb"
)

// sent via -ldflags
var VERSION string
var BUILDTIME string

// used for shell auto completion
var APPNAME string = "go-mod-clean"

func (a args) Description() string {
	return `
go-mod-clean will try to verify your go.* files are using the newest package versions

* Recreate go.* with 'go mod init' and 'go mod tidy'
* Set your required go in go.mod (default is go1.21
* Check that the most recent master branch versions are used
* Try to trim go.sum of non-existent entries
`
}

func (args) MustParse() error {
	me.pp = arg.MustParse(&argv)
	return nil
}

// sends the strings to bash or zsh that will be your options
func (a args) DoAutoComplete() error {
	if argvpb.PB.GetCmd() == "" {
		matches := []string{"strict", "--restore", "purge", "lax", "--version"}
		fmt.Fprintf(argvpb.Stdout, " %s", strings.Join(matches, " "))
		return nil
	}
	var err error
	if me.pp == nil {
		me.pp, err = arg.ParseFlagsArgv(&argv)
		if err != nil {
			return err
		}
	}
	err = me.pp.WriteHelpForAutocomplete(argvpb.PB.Partial, argvpb.PB.Real...)
	return err
}