package main

import (
	"flag"
	"fmt"
	"log"
	"os"

	"gopkg.in/ini.v1"

	"github.com/editorconfig/editorconfig-core-go/v2"
)

// version indicates the current version number.
var version = "dev"

func main() {
	var (
		configName      string
		configVersion   string
		showVersionFlag bool
	)

	flag.StringVar(&configName, "f", editorconfig.ConfigNameDefault, "Specify conf filename other than '.editorconfig'")
	flag.StringVar(&configVersion, "b", "", "Specify version (used by devs to test compatibility)")
	flag.BoolVar(&showVersionFlag, "v", false, "Display version information")
	flag.BoolVar(&showVersionFlag, "version", false, "Display version information")
	flag.Parse()

	if showVersionFlag {
		fmt.Printf("EditorConfig Core Go, Version %s\n", version) //nolint:forbidigo
		os.Exit(0)
	}

	rest := flag.Args()

	if len(rest) < 1 {
		flag.Usage()
		os.Exit(1)
	}

	config := &editorconfig.Config{
		Name:     configName,
		Version:  configVersion,
		Graceful: false,
	}

	if len(rest) > 1 {
		config.Parser = editorconfig.NewCachedParser()
	}

	for _, file := range rest {
		def, err := config.Load(file)
		if err != nil {
			log.Fatal(err)
		}

		iniFile := ini.Empty()
		ini.PrettyFormat = false

		if len(rest) < 2 {
			def.Selector = ini.DefaultSection
		} else {
			def.Selector = file
		}

		def.InsertToIniFile(iniFile)

		_, err = iniFile.WriteTo(os.Stdout)
		if err != nil {
			log.Fatal(err)
		}
	}
}