(function ($) {

    $(function () {
        try {
            if (typeof _wpcf7 == 'undefined' || _wpcf7 === null)
                _wpcf7 = {};

            _wpcf7 = $.extend({ cached: 0 }, _wpcf7);

            $('div.wpcf7 > form').ajaxForm({
                beforeSubmit: function (formData, jqForm, options) {
                    jqForm.wpcf7ClearResponseOutput();
                    jqForm.find('img.ajax-loader').css({ visibility: 'visible' });
                    return true;
                },
                beforeSerialize: function (jqForm, options) {
                    jqForm.find('.wpcf7-use-title-as-watermark.watermark').each(function (i, n) {
                        $(n).val('');
                    });
                    return true;
                },
                data: { '_wpcf7_is_ajax_call': 1 },
                dataType: 'json',
                success: function (data) {
                    var ro = $(data.into).find('div.wpcf7-response-output');
                    $(data.into).wpcf7ClearResponseOutput();

                    if (data.invalids) {
                        $.each(data.invalids, function (i, n) {
                            $(data.into).find(n.into).wpcf7NotValidTip(n.message);
                        });
                        ro.addClass('wpcf7-validation-errors');
                    }

                    if (data.captcha)
                        $(data.into).wpcf7RefillCaptcha(data.captcha);

                    if (data.quiz)
                        $(data.into).wpcf7RefillQuiz(data.quiz);

                    if (1 == data.spam)
                        ro.addClass('wpcf7-spam-blocked');

                    if (1 == data.mailSent) {
                        $(data.into).find('form').resetForm().clearForm();
                        ro.addClass('wpcf7-mail-sent-ok');

                        if (data.onSentOk)
                            $.each(data.onSentOk, function (i, n) { eval(n) });
                    } else {
                        ro.addClass('wpcf7-mail-sent-ng');
                    }

                    if (data.onSubmit)
                        $.each(data.onSubmit, function (i, n) { eval(n) });

                    $(data.into).find('.wpcf7-use-title-as-watermark.watermark').each(function (i, n) {
                        $(n).val($(n).attr('title'));
                    });

                    ro.append(data.message).slideDown('fast');
                }
            });

            $('div.wpcf7 > form').each(function (i, n) {
                if (_wpcf7.cached)
                    $(n).wpcf7OnloadRefill();

                $(n).wpcf7ToggleSubmit();

                $(n).find('.wpcf7-acceptance').click(function () {
                    $(n).wpcf7ToggleSubmit();
                });

                $(n).find('.wpcf7-exclusive-checkbox').each(function (i, n) {
                    $(n).find('input:checkbox').click(function () {
                        $(n).find('input:checkbox').not(this).removeAttr('checked');
                    });
                });

                $(n).find('.wpcf7-use-title-as-watermark').each(function (i, n) {
                    var input = $(n);
                    input.val(input.attr('title'));
                    input.addClass('watermark');

                    input.focus(function () {
                        if ($(this).hasClass('watermark'))
                            $(this).val('').removeClass('watermark');
                    });

                    input.blur(function () {
                        if ('' == $(this).val())
                            $(this).val($(this).attr('title')).addClass('watermark');
                    });
                });
            });

        } catch (e) {
        }
    });

    $.fn.wpcf7ToggleSubmit = function () {
        return this.each(function () {
            var form = $(this);
            if (this.tagName.toLowerCase() != 'form')
                form = $(this).find('form').first();

            if (form.hasClass('wpcf7-acceptance-as-validation'))
                return;

            var submit = form.find('input:submit');
            if (!submit.length) return;

            var acceptances = form.find('input:checkbox.wpcf7-acceptance');
            if (!acceptances.length) return;

            submit.removeAttr('disabled');
            acceptances.each(function (i, n) {
                n = $(n);
                if (n.hasClass('wpcf7-invert') && n.is(':checked')
				|| !n.hasClass('wpcf7-invert') && !n.is(':checked'))
                    submit.attr('disabled', 'disabled');
            });
        });
    };

    $.fn.wpcf7NotValidTip = function (message) {
        return this.each(function () {
            var into = $(this);
            into.append('<span class="wpcf7-not-valid-tip">' + message + '</span>');
            $('span.wpcf7-not-valid-tip').mouseover(function () {
                $(this).fadeOut('fast');
            });
            into.find(':input').mouseover(function () {
                into.find('.wpcf7-not-valid-tip').not(':hidden').fadeOut('fast');
            });
            into.find(':input').focus(function () {
                into.find('.wpcf7-not-valid-tip').not(':hidden').fadeOut('fast');
            });
        });
    };

    $.fn.wpcf7OnloadRefill = function () {
        return this.each(function () {
            var url = $(this).attr('action');
            if (0 < url.indexOf('#'))
                url = url.substr(0, url.indexOf('#'));

            var id = $(this).find('input[name="_wpcf7"]').val();
            var unitTag = $(this).find('input[name="_wpcf7_unit_tag"]').val();

            $.getJSON(url,
				{ _wpcf7_is_ajax_call: 1, _wpcf7: id },
				function (data) {
				    if (data && data.captcha)
				        $('#' + unitTag).wpcf7RefillCaptcha(data.captcha);

				    if (data && data.quiz)
				        $('#' + unitTag).wpcf7RefillQuiz(data.quiz);
				}
			);
        });
    };

    $.fn.wpcf7RefillCaptcha = function (captcha) {
        return this.each(function () {
            var form = $(this);

            $.each(captcha, function (i, n) {
                form.find(':input[name="' + i + '"]').clearFields();
                form.find('img.wpcf7-captcha-' + i).attr('src', n);
                var match = /([0-9]+)\.(png|gif|jpeg)$/.exec(n);
                form.find('input:hidden[name="_wpcf7_captcha_challenge_' + i + '"]').attr('value', match[1]);
            });
        });
    };

    $.fn.wpcf7RefillQuiz = function (quiz) {
        return this.each(function () {
            var form = $(this);

            $.each(quiz, function (i, n) {
                form.find(':input[name="' + i + '"]').clearFields();
                form.find(':input[name="' + i + '"]').siblings('span.wpcf7-quiz-label').text(n[0]);
                form.find('input:hidden[name="_wpcf7_quiz_answer_' + i + '"]').attr('value', n[1]);
            });
        });
    };

    $.fn.wpcf7ClearResponseOutput = function () {
        return this.each(function () {
            $(this).find('div.wpcf7-response-output').hide().empty().removeClass('wpcf7-mail-sent-ok wpcf7-mail-sent-ng wpcf7-validation-errors wpcf7-spam-blocked');
            $(this).find('span.wpcf7-not-valid-tip').remove();
            $(this).find('img.ajax-loader').css({ visibility: 'hidden' });
        });
    };

})(jQuery);