/**
 * YvanUI
 *
 * Copyright (c) 2018 www.yvanui.com. All rights reserved.
 * @author luoyifan@qq.com
 * @time 2018-11-27 11:16:00
 */
(function ($) {
    var idx = 1;

    function createBox(target) {
        //_2
        var $group = $('<div class="checkgroup-container"></div>');
        $(target).append($group);
        return $group;
    }

    function init(target) {
        var state = $.data(target, "checkgroup");
        var opts = state.options;
        var $group = state.group;
        var id = '_checkgroup_' + (++idx);
        $group.attr('id', id);

        if (opts.label) {
            if ($.type(opts.label) === 'object') {
                state.label = $(opts.label);
                state.label.attr("for", $group);

            } else {
                $(state.label).remove();
                state.label = $("<label class=\"textbox-label\"></label>").html(opts.label);
                state.label.css("textAlign", opts.labelAlign).attr("for", id);
                if (opts.labelPosition === "after") {
                    state.label.insertAfter($group);
                } else {
                    state.label.insertBefore($group);
                }
                state.label.removeClass("textbox-label-left textbox-label-right textbox-label-top");
                state.label.addClass("textbox-label-" + opts.labelPosition);
            }
        } else {
            $(state.label).remove();
        }

        var data = opts.data;
        if ($.type(data) === 'function') {
            data = data.call(this);
        }
        if ($.type(data) === 'object') {
            data = [];
            for (var name in opts.data) {
                if (!opts.data.hasOwnProperty(name)) continue;
                var item = {};
                item[opts.idValue || 'value'] = name;
                item[opts.textValue || 'label'] = opts.data[name];
                data.push(data);
            }
        } else if ($.type(opts.data) === 'array') {
            data = opts.data;
        }

        if (data) {
            for (var i = 0; i < data.length; i++) {
                var $dom = $('<input type="checkbox" name="' + opts.name + '"/>');
                $group.append($dom);
                var extend = {};
                if (opts.idValue) {
                    extend.value = data[i][opts.idValue];
                }
                if (opts.textValue) {
                    extend.label = data[i][opts.textValue];
                }
                $dom.checkbox($.extend({}, data[i], extend));
            }
        }
    }

    function resizeLabel(target) {
        var state = $.data(target, "checkgroup");
        var opts = state.options;
        var $dom = state.group;
        $dom._size(opts, $dom.parent());
        if (opts.label && opts.labelPosition) {
            if (opts.labelPosition === "top") {
                state.label._size({ width: opts.labelWidth }, $dom);
            } else {
                state.label._size({ width: opts.labelWidth, height: 'auto' }, $dom);
                state.label.css("float", "left");
                state.label.css("padding-top", "10px");
            }
        }

    }

    $.fn.checkgroup = function (options, param) {
        if (typeof options === 'string') {
            return $.fn.checkgroup.methods[options](this, param);
        }

        options = options || {};
        return this.each(function () {
            var state = $.data(this, 'checkgroup');
            if (state) {
                $.extend(state.options, options);
            } else {
                $.data(this, 'checkgroup', {
                    options: $.extend({}, $.fn.checkgroup.defaults, options),
                    group: createBox(this)
                });
            }
            init(this);
            resizeLabel(this);
        });
    };

    $.fn.checkgroup.methods = {
        options: function (jq) {
            var opts = jq.data("checkbox");
            return $.extend(opts.options, { value: opts.checkbox.find(".checkbox-value").val() });
        }, checkAll: function (jq) {
            return jq.each(function () {
                setValue(this, true);
            });
        }, uncheckAll: function (jq) {
            return jq.each(function () {
                setValue(this, false);
            });
        }, clear: function (jq) {
            return jq.each(function () {
                setValue(this, false);
            });
        }, reset: function (jq) {
            return jq.each(function () {
                var opts = $(this).checkbox("options");
                setValue(this, opts.originalValue);
            });
        }
    };

    $.fn.checkgroup.defaults = {
        value: null,
        primary: true,
        label: null,
        data: [],
        labelPosition: 'before',
        labelAlign: 'right',
        width: 280,
        labelWidth: 90,
        idValue: 'id',
        textValue: 'text',
        onChange: function (value) {
        }
    };

})(jQuery);