/*************
 * JS form validation for Turshija Framework
 * This JS works in combination with forms.class.php
 * @author Boris Vujicic - turshija@gmail.com
 **************/

(function() {
    var preventSubmit = false;

    var validateEmail = function(email) {
        var re = /^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
        return re.test(email);
    },
    showError = function( $input, greska ) {
        $input.addClass('formError-input');
        $input.after('<span class="error formErrors">'+greska+'</span>');
        preventSubmit = true;
    },
    clearError = function( $input ) {
        $input.removeClass('formError-input');
        if ($input.next().hasClass('formErrors')) {
            $input.next().remove();
        }
    },
    clearErrors = function() {
        $('.formErrors').remove();
        preventSubmit = false;
    },
    validateInput = function($input) {
        var temp;

        // Ocisti trenutnu gresku nad ovim inputom (ako postoji)
        clearError( $input );

        // Provera za required field
        temp = $input.data('required');
        if ( temp ) {
            if ( $input.val() === "" ) {
                showError($input, 'This field is required!');
                return true; // isto kao i continue
            }
        }

        // Provera za min length
        temp = $input.data('minlength');
        if ( temp ) {
            if ( $input.data('required') === false) {
                return true;
            }
            if ( $input.val().length < temp ) {
                showError($input, 'Text has to be longer than ' + temp + ' characters');
                return true; // isto kao i continue
            }
        }

        // Provera za validan email
        temp = $input.data('filter-email');
        if ( temp ) {
            if ( !validateEmail( $input.val() ) ) {
                showError($input, 'Invalid email address !');
                return true; // isto kao i continue
            }
        }

    };

    var $forms = $('form');
    $forms.submit(function(e) {
        var $form = $(this);

        // Ako je data-validate false, onda prekida validaciju
        if ( !$form.data('validate') ) {
            return true;
        }

        preventSubmit = false;
        $form.find('input').each(function() {
            console.log( $(this) );
            validateInput( $(this) );
        });

        if (preventSubmit) {
            e.preventDefault();
            console.log('submit prevented !');
        }
    });

    $forms.find('input').on('blur', function() {
        validateInput( $(this) );
    });
})();