// ALR - Any Linux Repository
// Copyright (C) 2025 Евгений Храмов
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cliutils

import (
	"fmt"

	"github.com/leonelquinteros/gotext"
)

// Templates are based on https://github.com/urfave/cli/blob/3b17080d70a630feadadd23dd036cad121dd9a50/template.go

//nolint:unused
var (
	helpNameTemplate    = `{{$v := offset .HelpName 6}}{{wrap .HelpName 3}}{{if .Usage}} - {{wrap .Usage $v}}{{end}}`
	descriptionTemplate = `{{wrap .Description 3}}`
	authorsTemplate     = `{{with $length := len .Authors}}{{if ne 1 $length}}S{{end}}{{end}}:
   {{range $index, $author := .Authors}}{{if $index}}
   {{end}}{{$author}}{{end}}`
	visibleCommandTemplate = `{{ $cv := offsetCommands .VisibleCommands 5}}{{range .VisibleCommands}}
   {{$s := join .Names ", "}}{{$s}}{{ $sp := subtract $cv (offset $s 3) }}{{ indent $sp ""}}{{wrap .Usage $cv}}{{end}}`
	visibleCommandCategoryTemplate = `{{range .VisibleCategories}}{{if .Name}}
   {{.Name}}:{{range .VisibleCommands}}
     {{join .Names ", "}}{{"\t"}}{{.Usage}}{{end}}{{else}}{{template "visibleCommandTemplate" .}}{{end}}{{end}}`
	visibleFlagCategoryTemplate = `{{range .VisibleFlagCategories}}
   {{if .Name}}{{.Name}}

   {{end}}{{$flglen := len .Flags}}{{range $i, $e := .Flags}}{{if eq (subtract $flglen $i) 1}}{{$e}}
{{else}}{{$e}}
   {{end}}{{end}}{{end}}`
	visibleFlagTemplate = `{{range $i, $e := .VisibleFlags}}
   {{wrap $e.String 6}}{{end}}`
	copyrightTemplate = `{{wrap .Copyright 3}}`
)

func GetAppCliTemplate() string {
	return fmt.Sprintf(`%s:
	{{template "helpNameTemplate" .}}

%s:
	{{if .UsageText}}{{wrap .UsageText 3}}{{else}}{{.HelpName}} {{if .VisibleFlags}}[global options]{{end}}{{if .Commands}} command [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{end}}{{if .Version}}{{if not .HideVersion}}

%s:
	{{.Version}}{{end}}{{end}}{{if .Description}}

%s:
   {{template "descriptionTemplate" .}}{{end}}
{{- if len .Authors}}

%s{{template "authorsTemplate" .}}{{end}}{{if .VisibleCommands}}

%s:{{template "visibleCommandCategoryTemplate" .}}{{end}}{{if .VisibleFlagCategories}}

%s:{{template "visibleFlagCategoryTemplate" .}}{{else if .VisibleFlags}}

%s:{{template "visibleFlagTemplate" .}}{{end}}{{if .Copyright}}

%s:
   {{template "copyrightTemplate" .}}{{end}}
`, gotext.Get("NAME"), gotext.Get("USAGE"), gotext.Get("VERSION"), gotext.Get("DESCRIPTION"), gotext.Get("AUTHOR"), gotext.Get("COMMANDS"), gotext.Get("GLOBAL OPTIONS"), gotext.Get("GLOBAL OPTIONS"), gotext.Get("COPYRIGHT"))
}

func GetCommandHelpTemplate() string {
	return fmt.Sprintf(`%s:
   {{template "helpNameTemplate" .}}

%s:
   {{if .UsageText}}{{wrap .UsageText 3}}{{else}}{{.HelpName}}{{if .VisibleFlags}} [%s]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[%s]{{end}}{{end}}{{if .Category}}

%s:
   {{.Category}}{{end}}{{if .Description}}

%s:
   {{template "descriptionTemplate" .}}{{end}}{{if .VisibleFlagCategories}}

%s:{{template "visibleFlagCategoryTemplate" .}}{{else if .VisibleFlags}}

%s:{{template "visibleFlagTemplate" .}}{{end}}
`, gotext.Get("NAME"),
		gotext.Get("USAGE"),
		gotext.Get("command options"),
		gotext.Get("arguments..."),
		gotext.Get("CATEGORY"),
		gotext.Get("DESCRIPTION"),
		gotext.Get("OPTIONS"),
		gotext.Get("OPTIONS"),
	)
}