package utils

import (
	"math/rand"

	"github.com/lucasjones/reggen"
)

func GeneratePassword() (string, error) {
	patterns := []string{
		`[A-Z]{6,}[\d]{2,}[a-z]{2,}[@$!%*?&]{2,}[A-Za-z]{2,}`,
		`[A-Za-z]{2,}[a-z]{6,}[\d]{2,}[@$!%*?&]{4,}`,
		`[\d]{2,}[A-Z]{6,}[@$!%*?&]{4,}[a-z]{2,}`,
		`[@$!%*?&]{4,}[a-z]{4,}[A-Z]{4,}[\d]{2,}`,
		`[A-Z]{2,}[@$!%*?&]{6,}[a-z]{4,}[\d]{2,}`,
		`[A-Z]{4,}[\d]{6,}[@$!%*?&]{4,}[a-z]{2,}`,
	}

	i := rand.Intn(len(patterns))
	pass, err := reggen.Generate(patterns[i], 14)

	return pass, err
}