password.go

package GoPassword

import (
	"encoding/json"
	"github.com/JustTimmm/GoColor"
	"math/rand"
	"os"
	"strings"
	"time"
)

type JsonFile struct {
	Password string `json:"password"`
}

func GeneratePassword(width uint8, number, specialCharacter, uppercase, lowercase bool) string {
	if width > 128 {
		GoColor.ErrorLog("You can't exceed the 128 character limit !\n")
		return ""
	} else if width < 8 {
		GoColor.ErrorLog("You must have at least 8 characters !\n")
		return ""
	}

	var charset string

	if number {
		charset += "0123456789"
	}
	if specialCharacter {
		charset += "&#-_*<>?!*"
	}
	if uppercase {
		charset += "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
	}
	if lowercase {
		charset += "abcdefghijklmnopqrstuvwxyz"
	}

	rand.Seed(time.Now().UnixNano())

	var sb strings.Builder
	for i := 0; i < int(width); i++ {
		randomIndex := rand.Intn(len(charset))
		sb.WriteByte(charset[randomIndex])
	}

	return sb.String()
}

func SavePassword(filename string, password string) {
	data := JsonFile{Password: password}
	file, err := os.Create(filename + ".json")

	if err != nil {
		GoColor.ErrorLog("File error: %s\n", err)
		return
	}
	defer file.Close()

	encoder := json.NewEncoder(file)
	encoder.SetEscapeHTML(false)
	encoder.SetIndent("", "  ")
	if err := encoder.Encode(data); err != nil {
		GoColor.ErrorLog("JSON encoding error: %s\n", err)
	}
}