var user = Volcanos("user", {help: "用户模块",
    alert: function(text) {alert(JSON.stringify(text))},
    confirm: function(text) {return confirm(JSON.stringify(text))},
    prompt: function(text, cb, def, silent) {(text = silent? def: prompt(text, def||"")) != undefined && typeof cb == "function" && cb(text); return text},
    reload: function(force) {(force || confirm("重新加载页面？")) && location.reload()},
    title: function(text) {return text && (document.title = text), document.title},

    input: function(event, can, form, cb) { var button
        function cbs(event, button) { var data = {}
            var list = can.page.Select(can, view.table, "select,input,textarea", function(item) {
                return data[item.name] = item.value
            })
            if (typeof cb == "function" && cb(event, button, data, list)) {
                can.page.Remove(can, view.first)
            }
        }

        var view = can.page.Append(can, document.body, [{view: ["input", "fieldset"], style: {left: event.clientX+"px", top: event.clientY+"px"}, list: [
            {view: ["option", "table"], list: can.core.List(form, function(item) {
                if (item.button) { button = can.core.List(item.button, function(item) { return {button: typeof item == "object"? item: [item, function(event) {
                    cbs(event, item)
                } ]} } ); return }
                return {type: ["tr"], list: [
                    {type: "td", list: [{text: typeof item == "string"?
                        item: item.length > 0? item[0]: item.name || "",
                    }]},
                    {type: "td", list: [typeof item == "string"? {input: item, data: {autofocus: true}}:
                        item.length > 0? {select: [item]}:
                            item._input == "select"? {select: [[item.name].concat(item.values)], data: item}:
                                item._input? {type: "input", data: (item.type = item._input, item)}: item,
                    ]},
                ]}
            })},
            {view: "action", list: button||[{button: ["提交", function(event) {
                cbs(event, "提交")
            }]}, {button: ["关闭", function(event, button) {
                can.page.Remove(can, view.first)
            }]}]},
        ]}])
        can.page.Select(can, view.first, "input", function(item, index) {
            index == 0 && (item.setSelectionRange(0, -1), item.focus())
        })
        return view
    },

    toast: function(text) {},
    carte: function(event, cb) {},
    login: function(cb) {},

    Share: shy("共享链接", function(can, objs, clear) {var obj = objs || {}; var path = location.pathname;
        obj._path && (path = obj._path, delete(obj._path))
        !clear && can.core.Item(can.user.Search(), function(key, value) {obj[key] || (obj[key] = value)});
        return can.core.List([location.origin+path, can.core.Item(obj, function(key, value) {
            return can.core.List(value, function(value) {return key+"="+encodeURIComponent(value)}).join("&");
        }).join("&")], function(item) { return item? item: undefined }).join("?")
    }),
    Search: shy("请求参数", function(can, key, value) {var args = {}
        location.search && location.search.slice(1).split("&").forEach(function(item) {var x = item.split("=")
            x[1] != "" && (args[x[0]] = decodeURIComponent(x[1]))
        })

        if (typeof key == "object") {
            can.core.Item(key, function(key, value) {
                if (value != undefined) {args[key] = value}
                args[key] == "" && delete(args[key])
            })
        } else if (key == undefined) {
            return args
        } else if (value == undefined) {
            // return args[key] || can.user.Cookie(can, key)
            return args[key]
        } else {
            args[key] = value
            args[key] == "" && delete(args[key])
        }

        return location.search = can.core.Item(args, function(key, value) {
            return key+"="+encodeURIComponent(value)
        }).join("&")
    }),
    Cookie: shy("会话变量", function(can, key, value, path) {
        function set(k, v) {document.cookie = k+"="+v+";path="+(path||"/")}

        if (typeof key == "object") {
            for (var k in key) {set(k, key[k])}
            key = null
        }
        if (key == undefined) {var cs = {}
            document.cookie.split("; ").forEach(function(item) {
                var cookie = item.split("=")
                cs[cookie[0]] = cookie[1]
            })
            return cs
        }

        value != undefined && set(key, value)
        var result = (new RegExp(key+"=([^;]*);?")).exec(document.cookie)
        return result && result.length > 0? result[1]: ""
    }),

    isWeiXin: navigator.userAgent.indexOf("MicroMessenger") > -1,
    isMobile: navigator.userAgent.indexOf("Mobile") > -1,
    isIPhone: navigator.userAgent.indexOf("iPhone") > -1,
    isMacOSX: navigator.userAgent.indexOf("Mac OS X") > -1,
    isWindows: navigator.userAgent.indexOf("Windows") > -1,
})