// Copyright 2023 Brian Newman. All rights reserved.
/*
	Perform a global search & replace across multiple files.
*/
package main

import (
	"bytes"
	"os"

	UI "go.cdmnky.io/v2/ui"
)

var (
	ui *UI.UI

	appname = "replace"
	version = "x.y.z"
	build   = "yyyy.mm.dd"
)

func main() {

	// -----------------------------------------------------------------------------
	ui = UI.New(appname, version, build)
	ui.Param.Add("--search", "string to search for", "", "y", "n")
	ui.Param.Add("--replace", "string to replace with", "", "y", "n")
	err := ui.Parse(os.Args)
	if err != nil {
		ui.Errorln(err)
		os.Exit(1)
	}

	searchFor := ui.Param.String("--search")
	replaceWith := ui.Param.String("--replace")

	ui.Banner()

	for _, filename := range ui.Param.Other() {
		ui.Outln(filename)
		data, err := os.ReadFile(filename)
		if err != nil {
			ui.Errorln(err)
			os.Exit(1)
		}

		fs, err := os.Stat(filename)
		if err != nil {
			ui.Errorln(err)
			os.Exit(1)
		}
		data = bytes.Replace(data, []byte(searchFor), []byte(replaceWith), -1)
		os.WriteFile(filename, data, fs.Mode().Perm())
	}

}