package main

import (
	"code.google.com/p/gopass"
	"flag"
	"fmt"
	"strings"
)

var siteName string

const DEFAULT_SITE = "etrade"

func init() {
	const site_usage = "Name of site for which to generate password"
	flag.StringVar(&siteName, "siteName", DEFAULT_SITE, site_usage)
	flag.StringVar(&siteName, "s", DEFAULT_SITE, site_usage+" (shorthand)")
}

func main() {
	flag.Parse()

	var restrictions *PasswordRestrictions
	for _, v := range sites {
		if strings.ToLower(siteName) == strings.ToLower(v.name) {
			restrictions = &v
			break
		}
	}

	if restrictions == nil {
		fmt.Println("Error: Site name not recognized, please use one of the following:")
		for _, v := range sites {
			fmt.Println("\t" + v.name)
		}
		return
	}

	oldPassword, err := gopass.GetPass("Enter Password: ")
	if err != nil {
		panic(err)
	}

	pw := NewPassword(restrictions, oldPassword)
	pw.InitialRandom()
	pw.FixupMinimumRequirements()
	pw.FixupAdditionalRequirements()
	pw.RandomizeOrder()
	pw.FixupAdditionalRequirements() //run this again, since randomizing the order can potentially introduce things which don't meet the additional requirements if they rely on not having duplicate characters next to each other, etc.

	fmt.Println("Generated password for " + restrictions.name + ": " + pw.password)
}