zwave-js
Version:
Z-Wave driver written entirely in JavaScript/TypeScript
81 lines • 2.76 kB
JavaScript
import { NodeStatus, StateMachine, } from "@zwave-js/core";
function to(state) {
return { newState: state };
}
const statusDict = {
unknown: NodeStatus.Unknown,
dead: NodeStatus.Dead,
alive: NodeStatus.Alive,
asleep: NodeStatus.Asleep,
awake: NodeStatus.Awake,
};
export function nodeStatusMachineStateToNodeStatus(state) {
return statusDict[state] ?? NodeStatus.Unknown;
}
export function createNodeStatusMachine(node) {
const initialState = {
value: "unknown",
};
const transitions = (state) => (input) => {
switch (state.value) {
case "unknown": {
switch (input.value) {
case "DEAD":
if (!node.canSleep)
return to({ value: "dead" });
break;
case "ALIVE":
if (!node.canSleep)
return to({ value: "alive" });
break;
case "ASLEEP":
if (node.canSleep)
return to({ value: "asleep" });
break;
case "AWAKE":
if (node.canSleep)
return to({ value: "awake" });
break;
}
break;
}
case "dead": {
if (input.value === "ALIVE")
return to({ value: "alive" });
break;
}
case "alive": {
switch (input.value) {
case "DEAD":
return to({ value: "dead" });
// GH#1054 we must have a way to send a node to sleep even if
// it was previously detected as a non-sleeping device
case "ASLEEP": {
if (node.canSleep)
return to({ value: "asleep" });
break;
}
case "AWAKE": {
if (node.canSleep)
return to({ value: "awake" });
break;
}
}
break;
}
case "asleep": {
if (input.value === "AWAKE")
return to({ value: "awake" });
break;
}
case "awake": {
if (input.value === "ASLEEP") {
return to({ value: "asleep" });
}
break;
}
}
};
return new StateMachine(initialState, transitions);
}
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