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6a21ddd1cd
The events listener now uses a proper self-consuming queue and the event handlers have been rewritten accordingly. The way this works is that running init() on the handlers library instantiates the handlers and returns two higher-order functions, prepare() and despatch(). A call to the latter of these is appended to the queue with each new incoming event. The handlers have access to a context object (ctx) which may be used to persist data between calls and/or exchange data between handlers. This is used notably to give the handlers access to project configurations, which are themselves refreshed by a project configuration change handler (DetectProjectConfigurationChange).
61 lines
1.5 KiB
JavaScript
61 lines
1.5 KiB
JavaScript
const project = require('../../lib/db/project');
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const { ALERT, ERROR, WARNING, NOTICE, INFO, DEBUG } = require('DOUGAL_ROOT/debug')(__filename);
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class DetectProjectConfigurationChange {
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author = `*${this.constructor.name}*`;
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constructor (ctx) {
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DEBUG(`${this.author} instantiated`);
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// Grab project configurations.
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// NOTE that this will run asynchronously
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this.run({channel: "project"}, ctx);
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}
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async run (data, ctx) {
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if (!data || data.channel !== "project") {
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return;
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}
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// Project notifications, as of this writing, most likely
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// do not carry payloads as those exceed the notification
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// size limit.
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// For our purposes, we do not care as we just re-read all
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// the configurations for all non-archived projects.
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try {
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DEBUG("Project configuration change detected")
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const projects = await project.get();
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const _ctx_data = {};
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for (let pid of projects.map(i => i.pid)) {
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DEBUG("Retrieving configuration for", pid);
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const cfg = await project.configuration.get(pid);
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if (cfg?.archived === true) {
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DEBUG(pid, "is archived. Ignoring");
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continue;
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}
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DEBUG("Saving configuration for", pid);
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_ctx_data[pid] = cfg;
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}
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if (! ("projects" in ctx)) {
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ctx.projects = {};
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}
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ctx.projects.configuration = _ctx_data;
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DEBUG("Committed project configuration to ctx.projects.configuration");
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} catch (err) {
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DEBUG(`${this.author} error`, err);
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throw err;
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}
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}
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}
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module.exports = DetectProjectConfigurationChange;
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