[
  {
    "id": "tab-demo-traffic",
    "type": "tab",
    "label": "01 Traffic Light",
    "disabled": false,
    "info": "# 01 Traffic Light\n\n最基础的 SCXML 循环：red → green → yellow → red。\n\n- 点 **next** 推进一个状态；\n- 点 **reset** 从初始态 red 重建会话；\n- Hub 同时输出状态、变量和 topic；\n- 打开机器配置，可用三张表 / actions 弹窗编辑；\n- 打开右侧 **状态机** 侧栏看只读实时图。\n\n覆盖：基础状态转移、entry action、变量、reset、监控。"
  },
  {
    "id": "demo-traffic-help",
    "type": "comment",
    "z": "tab-demo-traffic",
    "name": "说明",
    "info": "next 推进；reset 回到 red。状态/变量分别接 debug。",
    "x": 80,
    "y": 80,
    "wires": []
  },
  {
    "id": "demo-traffic-conf",
    "type": "statechart-machine",
    "z": "tab-demo-traffic",
    "name": "Traffic Light",
    "source": "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<scxml xmlns=\"http://www.w3.org/2005/07/scxml\" version=\"1.0\" datamodel=\"ecmascript\" initial=\"red\">\n  <datamodel><data id=\"cycles\" expr=\"0\"/></datamodel>\n  <state id=\"red\">\n    <onentry><assign location=\"cycles\" expr=\"cycles + 1\"/></onentry>\n    <transition event=\"next\" target=\"green\"/>\n  </state>\n  <state id=\"green\"><transition event=\"next\" target=\"yellow\"/></state>\n  <state id=\"yellow\"><transition event=\"next\" target=\"red\"/></state>\n</scxml>",
    "engine": "sandboxed",
    "scriptTimeoutMs": 500,
    "maxMicrosteps": 10000,
    "monitorShowVars": false,
    "persistVars": false,
    "updateEvent": "update",
    "x": 160,
    "y": 160,
    "wires": []
  },
  {
    "id": "demo-traffic-next",
    "type": "inject",
    "z": "tab-demo-traffic",
    "name": "next",
    "props": [
      {
        "p": "topic",
        "vt": "str",
        "v": "next"
      }
    ],
    "repeat": "",
    "crontab": "",
    "once": false,
    "onceDelay": 0.1,
    "payload": "",
    "payloadType": "str",
    "topic": "next",
    "x": 100,
    "y": 240,
    "wires": [
      [
        "demo-traffic-out"
      ]
    ]
  },
  {
    "id": "demo-traffic-reset",
    "type": "inject",
    "z": "tab-demo-traffic",
    "name": "reset",
    "props": [
      {
        "p": "payload",
        "vt": "json",
        "v": "{\"command\":\"reset\"}"
      }
    ],
    "repeat": "",
    "crontab": "",
    "once": false,
    "onceDelay": 0.1,
    "payload": "{\"command\":\"reset\"}",
    "payloadType": "json",
    "topic": "",
    "x": 100,
    "y": 300,
    "wires": [
      [
        "demo-traffic-out"
      ]
    ]
  },
  {
    "id": "demo-traffic-out",
    "type": "statechart-hub",
    "z": "tab-demo-traffic",
    "name": "traffic state",
    "machine": "demo-traffic-conf",
    "includeVars": true,
    "emitInitial": true,
    "includeInternalSends": false,
    "stateTopic": "traffic/state",
    "eventTopic": "traffic/{event}",
    "x": 560,
    "y": 220,
    "wires": [
      [
        "demo-traffic-state",
        "demo-traffic-vars"
      ],
      [
        "demo-traffic-events"
      ],
      []
    ]
  },
  {
    "id": "demo-traffic-state",
    "type": "debug",
    "z": "tab-demo-traffic",
    "name": "state (full)",
    "active": true,
    "tosidebar": true,
    "console": false,
    "tostatus": false,
    "complete": "true",
    "targetType": "full",
    "statusVal": "",
    "statusType": "auto",
    "x": 820,
    "y": 200,
    "wires": []
  },
  {
    "id": "demo-traffic-vars",
    "type": "debug",
    "z": "tab-demo-traffic",
    "name": "vars",
    "active": true,
    "tosidebar": true,
    "console": false,
    "tostatus": false,
    "complete": "vars",
    "targetType": "msg",
    "statusVal": "",
    "statusType": "auto",
    "x": 820,
    "y": 260,
    "wires": []
  },
  {
    "id": "demo-traffic-events",
    "type": "debug",
    "z": "tab-demo-traffic",
    "name": "events",
    "active": true,
    "tosidebar": true,
    "console": false,
    "tostatus": false,
    "complete": "true",
    "targetType": "full",
    "statusVal": "",
    "statusType": "auto",
    "x": 820,
    "y": 320,
    "wires": []
  },
  {
    "id": "tab-demo-commands",
    "type": "tab",
    "label": "02 Commands & Guards",
    "disabled": false,
    "info": "# 02 Commands & Guards\n\n演示 msg.command、变量、条件转移和 actions。\n\n- **start**（temp=20）→ cooling，并触发图内 send started；\n- **set temp=15** → 自动补 update → heating；\n- **set temp=25** → cooling；\n- **done** → 回 idle；\n- **reset** → 从初始态重建。\n\n覆盖：set / reset / event、updateEvent、cond、assign、send(data-expr)、stateTopic/eventTopic、变量调试。"
  },
  {
    "id": "demo-cmd-help",
    "type": "comment",
    "z": "tab-demo-commands",
    "name": "说明",
    "info": "先点 start；再点 set temp=15 / 25；done 回 idle。",
    "x": 80,
    "y": 80,
    "wires": []
  },
  {
    "id": "demo-cmd-conf",
    "type": "statechart-machine",
    "z": "tab-demo-commands",
    "name": "HVAC Guard",
    "source": "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<scxml xmlns=\"http://www.w3.org/2005/07/scxml\" version=\"1.0\" datamodel=\"ecmascript\" initial=\"idle\">\n  <datamodel>\n    <data id=\"temp\" expr=\"20\"/>\n    <data id=\"mode\" expr=\"'idle'\"/>\n  </datamodel>\n  <state id=\"idle\">\n    <onentry><assign location=\"mode\" expr=\"'idle'\"/></onentry>\n    <transition event=\"start\" cond=\"temp &lt; 18\" target=\"heating\">\n      <assign location=\"mode\" expr=\"'heating'\"/>\n      <send event=\"started\" data-expr=\"{mode: mode, temp: temp}\"/>\n    </transition>\n    <transition event=\"start\" cond=\"temp &gt;= 18\" target=\"cooling\">\n      <assign location=\"mode\" expr=\"'cooling'\"/>\n      <send event=\"started\" data-expr=\"{mode: mode, temp: temp}\"/>\n    </transition>\n    <transition event=\"update\" cond=\"temp &lt; 18\" target=\"heating\"/>\n    <transition event=\"update\" cond=\"temp &gt;= 18\" target=\"cooling\"/>\n  </state>\n  <state id=\"heating\">\n    <onentry><assign location=\"mode\" expr=\"'heating'\"/></onentry>\n    <transition event=\"done\" target=\"idle\"><assign location=\"mode\" expr=\"'done'\"/></transition>\n  </state>\n  <state id=\"cooling\">\n    <onentry><assign location=\"mode\" expr=\"'cooling'\"/></onentry>\n    <transition event=\"done\" target=\"idle\"><assign location=\"mode\" expr=\"'done'\"/></transition>\n  </state>\n</scxml>",
    "engine": "sandboxed",
    "scriptTimeoutMs": 500,
    "maxMicrosteps": 10000,
    "monitorShowVars": false,
    "persistVars": false,
    "updateEvent": "update",
    "x": 180,
    "y": 160,
    "wires": []
  },
  {
    "id": "demo-cmd-start",
    "type": "inject",
    "z": "tab-demo-commands",
    "name": "start",
    "props": [
      {
        "p": "topic",
        "vt": "str",
        "v": "start"
      }
    ],
    "repeat": "",
    "crontab": "",
    "once": false,
    "onceDelay": 0.1,
    "payload": "",
    "payloadType": "str",
    "topic": "start",
    "x": 100,
    "y": 240,
    "wires": [
      [
        "demo-cmd-out"
      ]
    ]
  },
  {
    "id": "demo-cmd-temp15",
    "type": "inject",
    "z": "tab-demo-commands",
    "name": "set temp=15",
    "props": [
      {
        "p": "payload",
        "vt": "json",
        "v": "{\"command\":\"set\",\"payload\":{\"temp\":15}}"
      }
    ],
    "repeat": "",
    "crontab": "",
    "once": false,
    "onceDelay": 0.1,
    "payload": "{\"command\":\"set\",\"payload\":{\"temp\":15}}",
    "payloadType": "json",
    "topic": "",
    "x": 100,
    "y": 300,
    "wires": [
      [
        "demo-cmd-out"
      ]
    ]
  },
  {
    "id": "demo-cmd-temp25",
    "type": "inject",
    "z": "tab-demo-commands",
    "name": "set temp=25",
    "props": [
      {
        "p": "payload",
        "vt": "json",
        "v": "{\"command\":\"set\",\"payload\":{\"temp\":25}}"
      }
    ],
    "repeat": "",
    "crontab": "",
    "once": false,
    "onceDelay": 0.1,
    "payload": "{\"command\":\"set\",\"payload\":{\"temp\":25}}",
    "payloadType": "json",
    "topic": "",
    "x": 100,
    "y": 360,
    "wires": [
      [
        "demo-cmd-out"
      ]
    ]
  },
  {
    "id": "demo-cmd-done",
    "type": "inject",
    "z": "tab-demo-commands",
    "name": "done",
    "props": [
      {
        "p": "payload",
        "vt": "json",
        "v": "{\"command\":\"event\",\"event\":\"done\"}"
      }
    ],
    "repeat": "",
    "crontab": "",
    "once": false,
    "onceDelay": 0.1,
    "payload": "{\"command\":\"event\",\"event\":\"done\"}",
    "payloadType": "json",
    "topic": "",
    "x": 100,
    "y": 420,
    "wires": [
      [
        "demo-cmd-out"
      ]
    ]
  },
  {
    "id": "demo-cmd-reset",
    "type": "inject",
    "z": "tab-demo-commands",
    "name": "reset",
    "props": [
      {
        "p": "payload",
        "vt": "json",
        "v": "{\"command\":\"reset\"}"
      }
    ],
    "repeat": "",
    "crontab": "",
    "once": false,
    "onceDelay": 0.1,
    "payload": "{\"command\":\"reset\"}",
    "payloadType": "json",
    "topic": "",
    "x": 100,
    "y": 480,
    "wires": [
      [
        "demo-cmd-out"
      ]
    ]
  },
  {
    "id": "demo-cmd-out",
    "type": "statechart-hub",
    "z": "tab-demo-commands",
    "name": "hvac state",
    "machine": "demo-cmd-conf",
    "includeVars": true,
    "emitInitial": true,
    "includeInternalSends": false,
    "stateTopic": "hvac/state",
    "eventTopic": "hvac/{event}",
    "x": 590,
    "y": 260,
    "wires": [
      [
        "demo-cmd-state",
        "demo-cmd-vars"
      ],
      [
        "demo-cmd-events"
      ],
      []
    ]
  },
  {
    "id": "demo-cmd-state",
    "type": "debug",
    "z": "tab-demo-commands",
    "name": "state (full)",
    "active": true,
    "tosidebar": true,
    "console": false,
    "tostatus": false,
    "complete": "true",
    "targetType": "full",
    "statusVal": "",
    "statusType": "auto",
    "x": 860,
    "y": 230,
    "wires": []
  },
  {
    "id": "demo-cmd-vars",
    "type": "debug",
    "z": "tab-demo-commands",
    "name": "vars",
    "active": true,
    "tosidebar": true,
    "console": false,
    "tostatus": false,
    "complete": "vars",
    "targetType": "msg",
    "statusVal": "",
    "statusType": "auto",
    "x": 860,
    "y": 290,
    "wires": []
  },
  {
    "id": "demo-cmd-events",
    "type": "debug",
    "z": "tab-demo-commands",
    "name": "started event",
    "active": true,
    "tosidebar": true,
    "console": false,
    "tostatus": false,
    "complete": "true",
    "targetType": "full",
    "statusVal": "",
    "statusType": "auto",
    "x": 860,
    "y": 350,
    "wires": []
  },
  {
    "id": "tab-demo-parallel",
    "type": "tab",
    "label": "03 Parallel & History",
    "disabled": false,
    "info": "# 03 Parallel & History\n\n两个独立机器：\n\n- **Parallel Plant**：power / network 两个并行区域，状态输出是数组；\n- **History Player**：open → details → pause → resume 恢复 details；back 回 home。\n\n覆盖：parallel、active state 数组、shallow history、两个 config node 独立会话。"
  },
  {
    "id": "demo-par-help",
    "type": "comment",
    "z": "tab-demo-parallel",
    "name": "说明",
    "info": "Parallel 的 states 是数组；History 演示 pause/resume。",
    "x": 80,
    "y": 80,
    "wires": []
  },
  {
    "id": "demo-par-conf",
    "type": "statechart-machine",
    "z": "tab-demo-parallel",
    "name": "Parallel Plant",
    "source": "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<scxml xmlns=\"http://www.w3.org/2005/07/scxml\" version=\"1.0\" initial=\"p\">\n  <parallel id=\"p\">\n    <state id=\"power\" initial=\"off\">\n      <state id=\"off\"><transition event=\"togglePower\" target=\"on\"/></state>\n      <state id=\"on\"><transition event=\"togglePower\" target=\"off\"/></state>\n    </state>\n    <state id=\"network\" initial=\"disconnected\">\n      <state id=\"disconnected\"><transition event=\"connect\" target=\"connected\"/></state>\n      <state id=\"connected\"><transition event=\"disconnect\" target=\"disconnected\"/></state>\n    </state>\n  </parallel>\n</scxml>",
    "engine": "sandboxed",
    "scriptTimeoutMs": 500,
    "maxMicrosteps": 10000,
    "monitorShowVars": false,
    "persistVars": false,
    "updateEvent": "update",
    "x": 160,
    "y": 160,
    "wires": []
  },
  {
    "id": "demo-par-power",
    "type": "inject",
    "z": "tab-demo-parallel",
    "name": "togglePower",
    "props": [
      {
        "p": "topic",
        "vt": "str",
        "v": "togglePower"
      }
    ],
    "repeat": "",
    "crontab": "",
    "once": false,
    "onceDelay": 0.1,
    "payload": "",
    "payloadType": "str",
    "topic": "togglePower",
    "x": 100,
    "y": 220,
    "wires": [
      [
        "demo-par-out"
      ]
    ]
  },
  {
    "id": "demo-par-connect",
    "type": "inject",
    "z": "tab-demo-parallel",
    "name": "connect",
    "props": [
      {
        "p": "topic",
        "vt": "str",
        "v": "connect"
      }
    ],
    "repeat": "",
    "crontab": "",
    "once": false,
    "onceDelay": 0.1,
    "payload": "",
    "payloadType": "str",
    "topic": "connect",
    "x": 100,
    "y": 280,
    "wires": [
      [
        "demo-par-out"
      ]
    ]
  },
  {
    "id": "demo-par-disconnect",
    "type": "inject",
    "z": "tab-demo-parallel",
    "name": "disconnect",
    "props": [
      {
        "p": "topic",
        "vt": "str",
        "v": "disconnect"
      }
    ],
    "repeat": "",
    "crontab": "",
    "once": false,
    "onceDelay": 0.1,
    "payload": "",
    "payloadType": "str",
    "topic": "disconnect",
    "x": 100,
    "y": 340,
    "wires": [
      [
        "demo-par-out"
      ]
    ]
  },
  {
    "id": "demo-par-out",
    "type": "statechart-hub",
    "z": "tab-demo-parallel",
    "name": "parallel states",
    "machine": "demo-par-conf",
    "includeVars": false,
    "emitInitial": true,
    "includeInternalSends": false,
    "stateTopic": "plant/state",
    "eventTopic": "statechart/{machine}/evt/{event}",
    "x": 580,
    "y": 220,
    "wires": [
      [
        "demo-par-debug"
      ],
      [],
      []
    ]
  },
  {
    "id": "demo-par-debug",
    "type": "debug",
    "z": "tab-demo-parallel",
    "name": "states array",
    "active": true,
    "tosidebar": true,
    "console": false,
    "tostatus": false,
    "complete": "true",
    "targetType": "full",
    "statusVal": "",
    "statusType": "auto",
    "x": 840,
    "y": 220,
    "wires": []
  },
  {
    "id": "demo-hist-conf",
    "type": "statechart-machine",
    "z": "tab-demo-parallel",
    "name": "History Player",
    "source": "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<scxml xmlns=\"http://www.w3.org/2005/07/scxml\" version=\"1.0\" initial=\"session\">\n  <state id=\"session\" initial=\"app\">\n    <state id=\"app\" initial=\"home\">\n      <state id=\"home\"><transition event=\"open\" target=\"details\"/></state>\n      <state id=\"details\"><transition event=\"back\" target=\"home\"/></state>\n      <history id=\"last\" type=\"shallow\"><transition target=\"home\"/></history>\n    </state>\n    <state id=\"paused\"><transition event=\"resume\" target=\"last\"/></state>\n    <state id=\"stopped\"><transition event=\"resume\" target=\"last\"/></state>\n    <transition event=\"pause\" target=\"paused\"/>\n    <transition event=\"stop\" target=\"stopped\"/>\n  </state>\n</scxml>",
    "engine": "sandboxed",
    "scriptTimeoutMs": 500,
    "maxMicrosteps": 10000,
    "monitorShowVars": false,
    "persistVars": false,
    "updateEvent": "update",
    "x": 160,
    "y": 540,
    "wires": []
  },
  {
    "id": "demo-hist-open",
    "type": "inject",
    "z": "tab-demo-parallel",
    "name": "open",
    "props": [
      {
        "p": "topic",
        "vt": "str",
        "v": "open"
      }
    ],
    "repeat": "",
    "crontab": "",
    "once": false,
    "onceDelay": 0.1,
    "payload": "",
    "payloadType": "str",
    "topic": "open",
    "x": 100,
    "y": 600,
    "wires": [
      [
        "demo-hist-out"
      ]
    ]
  },
  {
    "id": "demo-hist-pause",
    "type": "inject",
    "z": "tab-demo-parallel",
    "name": "pause",
    "props": [
      {
        "p": "topic",
        "vt": "str",
        "v": "pause"
      }
    ],
    "repeat": "",
    "crontab": "",
    "once": false,
    "onceDelay": 0.1,
    "payload": "",
    "payloadType": "str",
    "topic": "pause",
    "x": 100,
    "y": 660,
    "wires": [
      [
        "demo-hist-out"
      ]
    ]
  },
  {
    "id": "demo-hist-resume",
    "type": "inject",
    "z": "tab-demo-parallel",
    "name": "resume",
    "props": [
      {
        "p": "topic",
        "vt": "str",
        "v": "resume"
      }
    ],
    "repeat": "",
    "crontab": "",
    "once": false,
    "onceDelay": 0.1,
    "payload": "",
    "payloadType": "str",
    "topic": "resume",
    "x": 100,
    "y": 720,
    "wires": [
      [
        "demo-hist-out"
      ]
    ]
  },
  {
    "id": "demo-hist-stop",
    "type": "inject",
    "z": "tab-demo-parallel",
    "name": "stop",
    "props": [
      {
        "p": "topic",
        "vt": "str",
        "v": "stop"
      }
    ],
    "repeat": "",
    "crontab": "",
    "once": false,
    "onceDelay": 0.1,
    "payload": "",
    "payloadType": "str",
    "topic": "stop",
    "x": 100,
    "y": 780,
    "wires": [
      [
        "demo-hist-out"
      ]
    ]
  },
  {
    "id": "demo-hist-back",
    "type": "inject",
    "z": "tab-demo-parallel",
    "name": "back",
    "props": [
      {
        "p": "topic",
        "vt": "str",
        "v": "back"
      }
    ],
    "repeat": "",
    "crontab": "",
    "once": false,
    "onceDelay": 0.1,
    "payload": "",
    "payloadType": "str",
    "topic": "back",
    "x": 100,
    "y": 840,
    "wires": [
      [
        "demo-hist-out"
      ]
    ]
  },
  {
    "id": "demo-hist-out",
    "type": "statechart-hub",
    "z": "tab-demo-parallel",
    "name": "history states",
    "machine": "demo-hist-conf",
    "includeVars": false,
    "emitInitial": true,
    "includeInternalSends": false,
    "stateTopic": "player/state",
    "eventTopic": "statechart/{machine}/evt/{event}",
    "x": 580,
    "y": 600,
    "wires": [
      [
        "demo-hist-debug"
      ],
      [],
      []
    ]
  },
  {
    "id": "demo-hist-debug",
    "type": "debug",
    "z": "tab-demo-parallel",
    "name": "states",
    "active": true,
    "tosidebar": true,
    "console": false,
    "tostatus": false,
    "complete": "true",
    "targetType": "full",
    "statusVal": "",
    "statusType": "auto",
    "x": 840,
    "y": 600,
    "wires": []
  },
  {
    "id": "tab-demo-delay",
    "type": "tab",
    "label": "04 Delay & Sends",
    "disabled": false,
    "info": "# 04 Delay & Sends\n\n1.2s / 0.8s 延时转移 + 图内 send：\n\n- **open** → opening →（1.2s）→ open；\n- **close** → closing →（0.8s）→ closed；\n- 输出 2 同时显示 door.notify 和内部 timer send（已勾选 include internal sends）；\n- 状态 topic 为 door/state，事件 topic 为 door/{event}。\n\n覆盖：delay、send/id、内部/外部 send、eventTopic、定时器。"
  },
  {
    "id": "demo-delay-help",
    "type": "comment",
    "z": "tab-demo-delay",
    "name": "说明",
    "info": "点 open/close，观察 1.2s/0.8s 后状态变化。",
    "x": 80,
    "y": 80,
    "wires": []
  },
  {
    "id": "demo-delay-conf",
    "type": "statechart-machine",
    "z": "tab-demo-delay",
    "name": "Door with Delay",
    "source": "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<scxml xmlns=\"http://www.w3.org/2005/07/scxml\" version=\"1.0\" initial=\"closed\">\n  <state id=\"closed\"><transition event=\"open\" target=\"opening\"/></state>\n  <state id=\"opening\">\n    <onentry>\n      <send event=\"opened\" delay=\"1200ms\" id=\"openTimer\"/>\n      <send event=\"door.notify\" data-expr=\"{phase: 'opening'}\"/>\n    </onentry>\n    <transition event=\"opened\" target=\"open\"/>\n  </state>\n  <state id=\"open\"><transition event=\"close\" target=\"closing\"/></state>\n  <state id=\"closing\">\n    <onentry>\n      <send event=\"closed\" delay=\"800ms\" id=\"closeTimer\"/>\n      <send event=\"door.notify\" data-expr=\"{phase: 'closing'}\"/>\n    </onentry>\n    <transition event=\"closed\" target=\"closed\"/>\n  </state>\n</scxml>",
    "engine": "sandboxed",
    "scriptTimeoutMs": 500,
    "maxMicrosteps": 10000,
    "monitorShowVars": false,
    "persistVars": false,
    "updateEvent": "update",
    "x": 160,
    "y": 160,
    "wires": []
  },
  {
    "id": "demo-delay-open",
    "type": "inject",
    "z": "tab-demo-delay",
    "name": "open",
    "props": [
      {
        "p": "topic",
        "vt": "str",
        "v": "open"
      }
    ],
    "repeat": "",
    "crontab": "",
    "once": false,
    "onceDelay": 0.1,
    "payload": "",
    "payloadType": "str",
    "topic": "open",
    "x": 100,
    "y": 240,
    "wires": [
      [
        "demo-delay-out"
      ]
    ]
  },
  {
    "id": "demo-delay-close",
    "type": "inject",
    "z": "tab-demo-delay",
    "name": "close",
    "props": [
      {
        "p": "topic",
        "vt": "str",
        "v": "close"
      }
    ],
    "repeat": "",
    "crontab": "",
    "once": false,
    "onceDelay": 0.1,
    "payload": "",
    "payloadType": "str",
    "topic": "close",
    "x": 100,
    "y": 300,
    "wires": [
      [
        "demo-delay-out"
      ]
    ]
  },
  {
    "id": "demo-delay-reset",
    "type": "inject",
    "z": "tab-demo-delay",
    "name": "reset",
    "props": [
      {
        "p": "payload",
        "vt": "json",
        "v": "{\"command\":\"reset\"}"
      }
    ],
    "repeat": "",
    "crontab": "",
    "once": false,
    "onceDelay": 0.1,
    "payload": "{\"command\":\"reset\"}",
    "payloadType": "json",
    "topic": "",
    "x": 100,
    "y": 360,
    "wires": [
      [
        "demo-delay-out"
      ]
    ]
  },
  {
    "id": "demo-delay-out",
    "type": "statechart-hub",
    "z": "tab-demo-delay",
    "name": "door events",
    "machine": "demo-delay-conf",
    "includeVars": false,
    "emitInitial": true,
    "includeInternalSends": true,
    "stateTopic": "door/state",
    "eventTopic": "door/{event}",
    "x": 580,
    "y": 240,
    "wires": [
      [
        "demo-delay-state"
      ],
      [
        "demo-delay-events"
      ],
      []
    ]
  },
  {
    "id": "demo-delay-state",
    "type": "debug",
    "z": "tab-demo-delay",
    "name": "door state",
    "active": true,
    "tosidebar": true,
    "console": false,
    "tostatus": false,
    "complete": "true",
    "targetType": "full",
    "statusVal": "",
    "statusType": "auto",
    "x": 840,
    "y": 220,
    "wires": []
  },
  {
    "id": "demo-delay-events",
    "type": "debug",
    "z": "tab-demo-delay",
    "name": "send events",
    "active": true,
    "tosidebar": true,
    "console": false,
    "tostatus": false,
    "complete": "true",
    "targetType": "full",
    "statusVal": "",
    "statusType": "auto",
    "x": 840,
    "y": 300,
    "wires": []
  },
  {
    "id": "tab-demo-multi",
    "type": "tab",
    "label": "05 Multi-Machine",
    "disabled": false,
    "info": "# 05 Multi-Machine\n\n两个 config node 各自一个会话，用同名事件 \toggle 互不影响：\n\n- **Lamp**：off ↔ on；\n- **Fan**：low ↔ high；\n- 监控侧栏的机器选择器可切换两台；\n- 同一个 flow 里可以继续添加更多机器。\n\n覆盖：多 config node、独立 session、机器选择器。"
  },
  {
    "id": "demo-multi-help",
    "type": "comment",
    "z": "tab-demo-multi",
    "name": "说明",
    "info": "两个机器都接 toggle，但状态独立。",
    "x": 80,
    "y": 80,
    "wires": []
  },
  {
    "id": "demo-lamp-conf",
    "type": "statechart-machine",
    "z": "tab-demo-multi",
    "name": "Lamp",
    "source": "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<scxml xmlns=\"http://www.w3.org/2005/07/scxml\" version=\"1.0\" initial=\"off\">\n  <state id=\"off\"><transition event=\"toggle\" target=\"on\"/></state>\n  <state id=\"on\"><transition event=\"toggle\" target=\"off\"/></state>\n</scxml>",
    "engine": "sandboxed",
    "scriptTimeoutMs": 500,
    "maxMicrosteps": 10000,
    "monitorShowVars": false,
    "persistVars": false,
    "updateEvent": "update",
    "x": 160,
    "y": 160,
    "wires": []
  },
  {
    "id": "demo-fan-conf",
    "type": "statechart-machine",
    "z": "tab-demo-multi",
    "name": "Fan",
    "source": "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<scxml xmlns=\"http://www.w3.org/2005/07/scxml\" version=\"1.0\" initial=\"low\">\n  <state id=\"low\"><transition event=\"toggle\" target=\"high\"/></state>\n  <state id=\"high\"><transition event=\"toggle\" target=\"low\"/></state>\n</scxml>",
    "engine": "sandboxed",
    "scriptTimeoutMs": 500,
    "maxMicrosteps": 10000,
    "monitorShowVars": false,
    "persistVars": false,
    "updateEvent": "update",
    "x": 160,
    "y": 440,
    "wires": []
  },
  {
    "id": "demo-lamp-toggle",
    "type": "inject",
    "z": "tab-demo-multi",
    "name": "toggle lamp",
    "props": [
      {
        "p": "topic",
        "vt": "str",
        "v": "toggle"
      }
    ],
    "repeat": "",
    "crontab": "",
    "once": false,
    "onceDelay": 0.1,
    "payload": "",
    "payloadType": "str",
    "topic": "toggle",
    "x": 100,
    "y": 220,
    "wires": [
      [
        "demo-lamp-out"
      ]
    ]
  },
  {
    "id": "demo-fan-toggle",
    "type": "inject",
    "z": "tab-demo-multi",
    "name": "toggle fan",
    "props": [
      {
        "p": "topic",
        "vt": "str",
        "v": "toggle"
      }
    ],
    "repeat": "",
    "crontab": "",
    "once": false,
    "onceDelay": 0.1,
    "payload": "",
    "payloadType": "str",
    "topic": "toggle",
    "x": 100,
    "y": 500,
    "wires": [
      [
        "demo-fan-out"
      ]
    ]
  },
  {
    "id": "demo-lamp-out",
    "type": "statechart-hub",
    "z": "tab-demo-multi",
    "name": "lamp state",
    "machine": "demo-lamp-conf",
    "includeVars": false,
    "emitInitial": true,
    "includeInternalSends": false,
    "stateTopic": "lamp/state",
    "eventTopic": "statechart/{machine}/evt/{event}",
    "x": 580,
    "y": 220,
    "wires": [
      [
        "demo-lamp-debug"
      ],
      [],
      []
    ]
  },
  {
    "id": "demo-fan-out",
    "type": "statechart-hub",
    "z": "tab-demo-multi",
    "name": "fan state",
    "machine": "demo-fan-conf",
    "includeVars": false,
    "emitInitial": true,
    "includeInternalSends": false,
    "stateTopic": "fan/state",
    "eventTopic": "statechart/{machine}/evt/{event}",
    "x": 580,
    "y": 500,
    "wires": [
      [
        "demo-fan-debug"
      ],
      [],
      []
    ]
  },
  {
    "id": "demo-lamp-debug",
    "type": "debug",
    "z": "tab-demo-multi",
    "name": "lamp",
    "active": true,
    "tosidebar": true,
    "console": false,
    "tostatus": false,
    "complete": "true",
    "targetType": "full",
    "statusVal": "",
    "statusType": "auto",
    "x": 840,
    "y": 220,
    "wires": []
  },
  {
    "id": "demo-fan-debug",
    "type": "debug",
    "z": "tab-demo-multi",
    "name": "fan",
    "active": true,
    "tosidebar": true,
    "console": false,
    "tostatus": false,
    "complete": "true",
    "targetType": "full",
    "statusVal": "",
    "statusType": "auto",
    "x": 840,
    "y": 500,
    "wires": []
  },
  {
    "id": "tab-demo-doc",
    "type": "tab",
    "label": "06 ProjectDoc & Persistence",
    "disabled": false,
    "info": "# 06 ProjectDoc & Persistence\n\n这台机器只存 **ProjectDoc JSON**（没有原始 SCXML），打开配置会直接看到三张表：\n\n- cart → paying → done（final）；\n- entry action 更新 step 变量；\n- persistVars: true，变量写入 Node-RED context；\n- 点 **checkout / paid** 推进；**reset** 重建会话。\n\n覆盖：ProjectDoc、GUI 三张表、final 状态、persistVars、reset。"
  },
  {
    "id": "demo-doc-help",
    "type": "comment",
    "z": "tab-demo-doc",
    "name": "说明",
    "info": "打开机器配置看 ProjectDoc 三张表；checkout → paid。",
    "x": 80,
    "y": 80,
    "wires": []
  },
  {
    "id": "demo-doc-conf",
    "type": "statechart-machine",
    "z": "tab-demo-doc",
    "name": "Checkout (ProjectDoc)",
    "source": "",
    "doc": "{\"formatVersion\":1,\"name\":\"checkout\",\"initial\":\"u1\",\"datamodel\":[{\"id\":\"step\",\"expr\":\"'cart'\"}],\"states\":[{\"uid\":\"u1\",\"id\":\"cart\",\"label\":\"cart\",\"kind\":\"atomic\",\"parent\":null,\"initial\":null,\"entryActions\":[\"assign step = 'cart'\"],\"exitActions\":[]},{\"uid\":\"u2\",\"id\":\"paying\",\"label\":\"paying\",\"kind\":\"atomic\",\"parent\":null,\"initial\":null,\"entryActions\":[\"assign step = 'paying'\"],\"exitActions\":[]},{\"uid\":\"u3\",\"id\":\"done\",\"label\":\"done\",\"kind\":\"final\",\"parent\":null,\"initial\":null,\"entryActions\":[],\"exitActions\":[]}],\"transitions\":[{\"id\":\"t1\",\"source\":\"u1\",\"target\":\"u2\",\"event\":\"checkout\",\"cond\":\"\",\"actions\":[]},{\"id\":\"t2\",\"source\":\"u2\",\"target\":\"u3\",\"event\":\"paid\",\"cond\":\"\",\"actions\":[]}],\"layout\":{}}",
    "engine": "sandboxed",
    "scriptTimeoutMs": 500,
    "maxMicrosteps": 10000,
    "monitorShowVars": true,
    "persistVars": true,
    "updateEvent": "update",
    "x": 160,
    "y": 160,
    "wires": []
  },
  {
    "id": "demo-doc-checkout",
    "type": "inject",
    "z": "tab-demo-doc",
    "name": "checkout",
    "props": [
      {
        "p": "topic",
        "vt": "str",
        "v": "checkout"
      }
    ],
    "repeat": "",
    "crontab": "",
    "once": false,
    "onceDelay": 0.1,
    "payload": "",
    "payloadType": "str",
    "topic": "checkout",
    "x": 100,
    "y": 240,
    "wires": [
      [
        "demo-doc-out"
      ]
    ]
  },
  {
    "id": "demo-doc-paid",
    "type": "inject",
    "z": "tab-demo-doc",
    "name": "paid",
    "props": [
      {
        "p": "topic",
        "vt": "str",
        "v": "paid"
      }
    ],
    "repeat": "",
    "crontab": "",
    "once": false,
    "onceDelay": 0.1,
    "payload": "",
    "payloadType": "str",
    "topic": "paid",
    "x": 100,
    "y": 300,
    "wires": [
      [
        "demo-doc-out"
      ]
    ]
  },
  {
    "id": "demo-doc-reset",
    "type": "inject",
    "z": "tab-demo-doc",
    "name": "reset",
    "props": [
      {
        "p": "payload",
        "vt": "json",
        "v": "{\"command\":\"reset\"}"
      }
    ],
    "repeat": "",
    "crontab": "",
    "once": false,
    "onceDelay": 0.1,
    "payload": "{\"command\":\"reset\"}",
    "payloadType": "json",
    "topic": "",
    "x": 100,
    "y": 360,
    "wires": [
      [
        "demo-doc-out"
      ]
    ]
  },
  {
    "id": "demo-doc-out",
    "type": "statechart-hub",
    "z": "tab-demo-doc",
    "name": "checkout state",
    "machine": "demo-doc-conf",
    "includeVars": true,
    "emitInitial": true,
    "includeInternalSends": false,
    "stateTopic": "checkout/state",
    "eventTopic": "checkout/{event}",
    "x": 620,
    "y": 240,
    "wires": [
      [
        "demo-doc-state",
        "demo-doc-vars"
      ],
      [],
      []
    ]
  },
  {
    "id": "demo-doc-state",
    "type": "debug",
    "z": "tab-demo-doc",
    "name": "state (full)",
    "active": true,
    "tosidebar": true,
    "console": false,
    "tostatus": false,
    "complete": "true",
    "targetType": "full",
    "statusVal": "",
    "statusType": "auto",
    "x": 900,
    "y": 220,
    "wires": []
  },
  {
    "id": "demo-doc-vars",
    "type": "debug",
    "z": "tab-demo-doc",
    "name": "vars",
    "active": true,
    "tosidebar": true,
    "console": false,
    "tostatus": false,
    "complete": "vars",
    "targetType": "msg",
    "statusVal": "",
    "statusType": "auto",
    "x": 900,
    "y": 280,
    "wires": []
  },
  {
    "id": "tab-demo-internal",
    "type": "tab",
    "label": "07 Raise & Internal Events",
    "disabled": false,
    "info": "# Kit 0.13 · 内部事件 / raise\n\n演示 `statechart-kit@0.15.1` 的两个新能力：\n\n- **raise**：`arm` 转移执行 `raise ping`，在同一个宏步内产生图内内部事件；\n- **internalOnlyEvents**：`ping` 标记为「仅内部」，转移生成 SCXML guard\n  `_event.type === 'internal'`；外部同名事件不会触发。\n\n推荐操作：\n\n1. 点「外部 ping（应被忽略）」：状态保持 idle，Hub 输出 2 没有 `ping`；\n2. 点「arm → raise ping」：idle → session/armed，raise ping 后进入 handling，visits +1；\n3. 点「ack」：回到 idle；\n4. 打开机器配置 → 完整编辑器，在事件面板把 ping 改成「双向」，再点外部 ping 就会触发。\n\n注意：`raise` 不是 `<send>`，不会出现在 Hub 输出 2；这是刻意保留的 SCXML 语义。"
  },
  {
    "id": "note-kit13-internal",
    "type": "comment",
    "z": "tab-demo-internal",
    "name": "Kit 0.13 · raise + internal-only",
    "info": "# Kit 0.13 · 内部事件 / raise\n\n演示 `statechart-kit@0.15.1` 的两个新能力：\n\n- **raise**：`arm` 转移执行 `raise ping`，在同一个宏步内产生图内内部事件；\n- **internalOnlyEvents**：`ping` 标记为「仅内部」，转移生成 SCXML guard\n  `_event.type === 'internal'`；外部同名事件不会触发。\n\n推荐操作：\n\n1. 点「外部 ping（应被忽略）」：状态保持 idle，Hub 输出 2 没有 `ping`；\n2. 点「arm → raise ping」：idle → session/armed，raise ping 后进入 handling，visits +1；\n3. 点「ack」：回到 idle；\n4. 打开机器配置 → 完整编辑器，在事件面板把 ping 改成「双向」，再点外部 ping 就会触发。\n\n注意：`raise` 不是 `<send>`，不会出现在 Hub 输出 2；这是刻意保留的 SCXML 语义。",
    "x": 80,
    "y": 60,
    "w": 520,
    "h": 120,
    "wires": []
  },
  {
    "id": "conf-internal-events",
    "type": "statechart-machine",
    "z": "tab-demo-internal",
    "name": "Internal Events Demo",
    "source": "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<scxml xmlns=\"http://www.w3.org/2005/07/scxml\" version=\"1.0\" datamodel=\"ecmascript\" name=\"Internal Events Demo\" initial=\"idle\" data-kit-internal-events=\"[&quot;ping&quot;]\">\n  <datamodel>\n    <data id=\"visits\" expr=\"0\"/>\n    <data id=\"lastEvent\" expr=\"&quot;none&quot;\"/>\n  </datamodel>\n  <state id=\"idle\">\n    <onentry>\n      <assign location=\"lastEvent\" expr=\"&quot;idle&quot;\"/>\n    </onentry>\n    <transition event=\"arm\" target=\"session\" data-kit-transition-id=\"t-arm\">\n      <assign location=\"lastEvent\" expr=\"&quot;arm&quot;\"/>\n      <raise event=\"ping\"/>\n    </transition>\n  </state>\n  <state id=\"session\" initial=\"armed\">\n    <state id=\"armed\">\n      <transition event=\"ping\" target=\"handling\" data-kit-transition-id=\"t-ping\" data-kit-visibility=\"internal\" cond=\"_event.type === 'internal'\"/>\n    </state>\n    <state id=\"handling\">\n      <onentry>\n        <assign location=\"visits\" expr=\"visits + 1\"/>\n        <assign location=\"lastEvent\" expr=\"&quot;handling&quot;\"/>\n      </onentry>\n      <transition event=\"ack\" target=\"idle\" data-kit-transition-id=\"t-ack\"/>\n    </state>\n  </state>\n</scxml>\n",
    "doc": "{\"formatVersion\":1,\"name\":\"Internal Events Demo\",\"initial\":\"u-idle\",\"datamodel\":[{\"id\":\"visits\",\"expr\":\"0\"},{\"id\":\"lastEvent\",\"expr\":\"\\\"none\\\"\"}],\"states\":[{\"uid\":\"u-idle\",\"id\":\"idle\",\"label\":\"idle\",\"kind\":\"atomic\",\"parent\":null,\"initial\":null,\"entryActions\":[\"assign lastEvent = \\\"idle\\\"\"],\"exitActions\":[]},{\"uid\":\"u-session\",\"id\":\"session\",\"label\":\"session\",\"kind\":\"compound\",\"parent\":null,\"initial\":\"u-armed\",\"entryActions\":[],\"exitActions\":[]},{\"uid\":\"u-armed\",\"id\":\"armed\",\"label\":\"armed\",\"kind\":\"atomic\",\"parent\":\"u-session\",\"initial\":null,\"entryActions\":[],\"exitActions\":[]},{\"uid\":\"u-handling\",\"id\":\"handling\",\"label\":\"handling\",\"kind\":\"atomic\",\"parent\":\"u-session\",\"initial\":null,\"entryActions\":[\"assign visits = visits + 1\",\"assign lastEvent = \\\"handling\\\"\"],\"exitActions\":[]}],\"transitions\":[{\"id\":\"t-arm\",\"source\":\"u-idle\",\"target\":\"u-session\",\"event\":\"arm\",\"cond\":\"\",\"actions\":[\"assign lastEvent = \\\"arm\\\"\",\"raise ping\"]},{\"id\":\"t-ping\",\"source\":\"u-armed\",\"target\":\"u-handling\",\"event\":\"ping\",\"cond\":\"\",\"actions\":[]},{\"id\":\"t-ack\",\"source\":\"u-handling\",\"target\":\"u-idle\",\"event\":\"ack\",\"cond\":\"\",\"actions\":[]}],\"layout\":{\"u-idle\":{\"x\":80,\"y\":240},\"u-session\":{\"x\":340,\"y\":180},\"u-armed\":{\"x\":380,\"y\":300},\"u-handling\":{\"x\":580,\"y\":300}},\"internalOnlyEvents\":[\"ping\"]}",
    "engine": "sandboxed",
    "scriptTimeoutMs": 500,
    "maxMicrosteps": 10000,
    "monitorShowVars": true,
    "persistVars": false,
    "updateEvent": "update",
    "x": 260,
    "y": 230,
    "wires": []
  },
  {
    "id": "inject-external-ping",
    "type": "inject",
    "z": "tab-demo-internal",
    "name": "外部 ping（应被忽略）",
    "props": [
      {
        "p": "topic",
        "vt": "str",
        "v": "ping"
      }
    ],
    "repeat": "",
    "crontab": "",
    "once": false,
    "onceDelay": 0.1,
    "topic": "ping",
    "x": 120,
    "y": 380,
    "wires": [
      [
        "hub-internal"
      ]
    ]
  },
  {
    "id": "inject-arm",
    "type": "inject",
    "z": "tab-demo-internal",
    "name": "arm → raise ping",
    "props": [
      {
        "p": "topic",
        "vt": "str",
        "v": "arm"
      }
    ],
    "repeat": "",
    "crontab": "",
    "once": false,
    "onceDelay": 0.1,
    "topic": "arm",
    "x": 120,
    "y": 440,
    "wires": [
      [
        "hub-internal"
      ]
    ]
  },
  {
    "id": "inject-ack",
    "type": "inject",
    "z": "tab-demo-internal",
    "name": "ack",
    "props": [
      {
        "p": "topic",
        "vt": "str",
        "v": "ack"
      }
    ],
    "repeat": "",
    "crontab": "",
    "once": false,
    "onceDelay": 0.1,
    "topic": "ack",
    "x": 120,
    "y": 500,
    "wires": [
      [
        "hub-internal"
      ]
    ]
  },
  {
    "id": "hub-internal",
    "type": "statechart-hub",
    "z": "tab-demo-internal",
    "name": "Internal Events",
    "machine": "conf-internal-events",
    "includeVars": true,
    "emitInitial": true,
    "includeInternalSends": true,
    "stateTopic": "",
    "eventTopic": "statechart/{machine}/evt/{event}",
    "x": 520,
    "y": 420,
    "wires": [
      [
        "kit13-debug-state"
      ],
      [
        "kit13-debug-events"
      ],
      [
        "kit13-debug-errors"
      ]
    ]
  },
  {
    "id": "kit13-debug-state",
    "type": "debug",
    "z": "tab-demo-internal",
    "name": "state / vars",
    "active": true,
    "tosidebar": true,
    "console": false,
    "tostatus": false,
    "complete": "true",
    "targetType": "full",
    "statusVal": "",
    "statusType": "auto",
    "x": 820,
    "y": 380,
    "wires": []
  },
  {
    "id": "kit13-debug-events",
    "type": "debug",
    "z": "tab-demo-internal",
    "name": "chart send（raise 不出现）",
    "active": true,
    "tosidebar": true,
    "console": false,
    "tostatus": false,
    "complete": "true",
    "targetType": "full",
    "statusVal": "",
    "statusType": "auto",
    "x": 820,
    "y": 440,
    "wires": []
  },
  {
    "id": "kit13-debug-errors",
    "type": "debug",
    "z": "tab-demo-internal",
    "name": "errors / done",
    "active": true,
    "tosidebar": true,
    "console": false,
    "tostatus": false,
    "complete": "true",
    "targetType": "full",
    "statusVal": "",
    "statusType": "auto",
    "x": 820,
    "y": 500,
    "wires": []
  }
]