68 lines
1.7 KiB
JavaScript
68 lines
1.7 KiB
JavaScript
/**
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* 小程序终端会话事件总线：
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* 1. 插件运行时通过该总线订阅会话事件；
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* 2. 终端页通过该总线暴露“当前活动会话”的发送能力。
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*/
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const EVENT_NAMES = ["connected", "disconnected", "stdout", "stderr", "latency"];
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const listeners = EVENT_NAMES.reduce((acc, key) => {
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acc[key] = new Set();
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return acc;
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}, {});
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let activeSessionSender = null;
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let currentSessionState = "disconnected";
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function onSessionEvent(eventName, handler) {
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const name = String(eventName || "");
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if (!listeners[name] || typeof handler !== "function") {
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return () => {};
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}
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listeners[name].add(handler);
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return () => {
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listeners[name].delete(handler);
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};
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}
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function emitSessionEvent(eventName, payload) {
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const name = String(eventName || "");
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const bucket = listeners[name];
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if (name === "connected") {
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currentSessionState = "connected";
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} else if (name === "disconnected") {
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currentSessionState = "disconnected";
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}
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if (!bucket) return;
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bucket.forEach((handler) => {
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try {
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handler(payload);
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} catch (error) {
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console.error("[sessionBus.emit]", name, error);
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}
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});
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}
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function setActiveSessionSender(sender) {
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activeSessionSender = typeof sender === "function" ? sender : null;
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if (!activeSessionSender) {
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currentSessionState = "disconnected";
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}
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}
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async function sendToActiveSession(input, meta) {
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if (!activeSessionSender) {
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throw new Error("当前无活动终端会话");
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}
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await Promise.resolve(activeSessionSender(String(input || ""), meta));
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}
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module.exports = {
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onSessionEvent,
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emitSessionEvent,
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setActiveSessionSender,
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sendToActiveSession,
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getSessionState() {
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return currentSessionState;
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}
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};
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