(function() { const RIVER = "river", STORM = "storm", ACTION = "action"
Volcanos("onimport", {help: "导入数据", list: [], _init: function(can, msg, list, cb, target) {
        var river = can.Conf(RIVER), storm = can.Conf(STORM)
        can.onmotion.clear(can), can.core.Next(msg.Table(), function(value, next) {
            value.feature = can.base.Obj(value.feature||value.meta||"{}", {})
            value.inputs = can.base.Obj(value.inputs||value.list||"[]", [])

            value.inputs.length == 0? can.run({}, ["action", "command", value.index || value.ctx+"."+value.cmd], function(msg) {
                value.feature = can.base.Obj(msg.meta&&msg.meta[0]||"{}", {})
                value.inputs = can.base.Obj(msg.list&&msg.list[0]||"[]", [])

                can.onimport._plugin(can, target, river, storm, value), next()
            }): (can.onimport._plugin(can, target, river, storm, value), next())
        })
        typeof cb == "function" && cb(msg)
    },
    _plugin: function(can, target, river, storm, value) { value.name = value.name.split(" ")[0]
        value.action = value.id || value.index || value.key+"."+value.name
        value.width = can._target.offsetWidth
        value.type = "plugin"

        // 添加插件
        can.onappend._init(can, value, ["/plugin/state.js"], function(plugin) {
            can._plugins = (can._plugins||[]).concat([plugin])
            plugin.run = function(event, cmds, cb, silent) { var msg = plugin.request(event); cmds = cmds || []
                can.run(event, can.onengine[cmds[0]]? cmds: [river, storm, value.action].concat(cmds), function(msg) {
                    typeof cb == "function" && cb(msg)
                }, silent)
            }
        }, target)
    },
})
Volcanos("onaction", {help: "交互操作", list: [], _init: function(can, msg, list, cb, target) {
        can.page.Cache(can.Conf(RIVER)+"."+can.Conf(STORM), can._output, can._output.scrollTop+1)
        var river = can.Conf(RIVER, msg.Option(RIVER)), storm = can.Conf(STORM, msg.Option(STORM))
        var position = can.Conf(ACTION, msg.Option(ACTION, can.page.Cache(river+"."+storm, can._output)||""))
        if (position) { can._output.scrollTo(0, position-1); return }

        can.run({}, [river, storm], function(msg) {
            can.onimport._init(can, msg, list, cb, can._output)
        })
    },
})
Volcanos("onexport", {help: "导出数据", list: [],
    args: function(can, msg, list, cb, target) {
        can.core.Next(can.page.Select(can, target, "fieldset.plugin>form.option"), function(item, next) {
            var list = can.page.Select(can, item, '.args', function(item) { return item.value||"" })
            item.dataset.args = JSON.stringify(list), cb(item, next)
        })
    },
})
})()