$(document).ready(function(){

    var translations;

    // Add meter element
    $('.psm').each(function(){

        var relatedInput = $('#'+$(this).attr('rel'));
        $(this).append(
            '<div class="pwdmeter_wrap psm_' + relatedInput.attr('name') + '">' +
                '<div class="pwd_meter"><div></div></div>' +
                '<div class="pwd_text"></div>' +
            '</div>'
        );

        var that = this;
        
        var minlength = $(that).data('minlength') || 7;
        $.getJSON(Config.baseUrl + 'translations/passwordstrength', {'minlength' : minlength}, function(data){
            translations = data;
        });

        relatedInput.keyup(function(){

            // Get vars
            var meter = $('.psm_' + $(this).attr('name') + ' .pwd_meter div');
            var text  = $('.psm_' + $(this).attr('name') + ' .pwd_text');
            var perc  = passwordStrengthPercent($(this).val(), minlength);

            // Set the accompanying text
            text.text(passwordStrengthString(perc, translations));

            // Minimum 5 perc
            perc = perc < 5 ? 5 : perc;

            // Set width
            meter.css('width', perc+'%');

        });

    });

});

function passwordStrengthString(perc, translations)
{
    if ( perc > 75 ) {
        return translations[100]; // very strong
    } else if ( perc > 50 ) {
        return translations[75]; // strong
    } else if ( perc > 25 ) {
        return translations[50]; // weak
    } else if ( perc > 0 ) {
        return translations[25]; // very weak
    } else if ( perc == 0 ) {
        return translations[0]; // not longh enough
    } else if(perc < 0) {
        return translations['-1']; // no password
    }
}

function passwordStrengthPercent(password, minlength){

    var score = 0

    // empty password
    if (password.length == 0) { return  -1 }

    // password < 4
    if (password.length < minlength) { return 0 }

    // password length
    score += password.length * 4
    score += ( checkRepetition(1,password).length - password.length ) * 1
    score += ( checkRepetition(2,password).length - password.length ) * 1
    score += ( checkRepetition(3,password).length - password.length ) * 1
    score += ( checkRepetition(4,password).length - password.length ) * 1

    // password has 3 numbers
    if (password.match(/(.*[0-9].*[0-9].*[0-9])/))  score += 10

    // password has 2 symbols
    if (password.match(/(.*[^a-zA-Z0-9].*[^a-zA-Z0-9])/)) score += 10

    // password has Upper and Lower chars
    if (password.match(/([a-z].*[A-Z])|([A-Z].*[a-z])/))  score += 10

    // password has number and chars
    if (password.match(/([a-zA-Z])/) && password.match(/([0-9])/))  score += 15
    //
    // password has number and symbol
    if (password.match(/([^a-zA-Z0-9])/) && password.match(/([0-9])/))  score += 15

    // password has char and symbol
    if (password.match(/([^a-zA-Z0-9])/) && password.match(/([a-zA-Z])/))  score += 15

    // password is just a numbers or chars
    if (password.match(/^\w+$/) || password.match(/^\d+$/) )  score -= 10

    if (score > 100) return 100

    return (score)

}

function checkRepetition(pLen,str) {

    var res = "", repeat, repeated;
    for ( i = 0; i < str.length ; i++ ) {
        repeated = true;
        for (j = 0; j < pLen && (j + i + pLen) < str.length; j++){
            repeated = repeated && (str.charAt(j + i) == str.charAt(j + i + pLen));
        }
        if (j < pLen) {
            repeated = false;
        }
        if (repeated) {
            i += pLen - 1;
            repeated = false;
        } else {
            res += str.charAt(i);
        }
    }
    return res
}