/**
 * created by luker on 2016/10/31.
 */
if (typeof $ === 'function') {
    $(function () {
        var bealert = {
            defaultconfig: {
                width: 320,
                height: 170,
                timer: 0,
                type: 'warning',
                showconfirmbutton: true,
                showcancelbutton: false,
                confirmbuttontext: '确认',
                cancelbuttontext: '取消'
            },
            html: '<div class="bealert_box">' +
            '<div class="bealert_image"></div>' +
            '<div class="bealert_title"></div>' +
            '<div class="bealert_message"></div>' +
            '<div class="bealert_button">' +
            '<button class="bealert_cancel"></button>' +
            '<button class="bealert_confirm"></button>' +
            '</div>' +
            '</div>',
            overlay: '<div class="bealert_overlay"></div>',
            open: function (title, message, callback, o) {
                var opts = {}, that = this;
                $.extend(opts, that.defaultconfig, o);
                $('body').append(that.html).append(that.overlay);
                var box = $('.bealert_box');
                box.css({
                    'width': opts.width + 'px',
                    'min-height': opts.height + 'px',
                    'margin-left': -(opts.width / 2) + 'px'
                });
                $('.bealert_image').addclass(opts.type);
                title && $('.bealert_title').html(title).show(),
                message && $('.bealert_message').html(message).show();
                var confirmbtn = $('.bealert_confirm'), cancelbtn = $('.bealert_cancel');
                opts.showconfirmbutton && confirmbtn.text(opts.confirmbuttontext).show(),
                opts.showcancelbutton && cancelbtn.text(opts.cancelbuttontext).show();
                // $('.bealert_overlay').unbind('click').bind('click', function () {
                //     that.close();
                // });
                confirmbtn.unbind('click').bind('click', function () {
                    that.close();
                    typeof callback === 'function' && callback(true);
                });
                cancelbtn.unbind('click').bind('click', function () {
                    that.close();
                    typeof callback === 'function' && callback(false);
                });
                var h = box.height();
                box.css({
                    'margin-top': -(math.max(h, opts.height) / 2 + 100) + 'px'
                });
            },
            close: function () {
                $(".bealert_overlay,.bealert_box").remove();
            }
        };
        window.alert = function (title, message, callback, opts) {
            bealert.open(title, message, callback, opts);
        };
        var _confirm = window.confirm;
        window.confirm = function (title, message, callback, opts) {
            opts = $.extend({type: 'question', showcancelbutton: true}, opts);
            if (typeof callback === 'function') {
                bealert.open(title, message, callback, opts);
            } else {
                return _confirm(title);
            }
        }

    });

}