52 lines
1.3 KiB
JavaScript
52 lines
1.3 KiB
JavaScript
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const { rowEmission, tableEmission } = require("./utils")
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const mainEmitter = require("./index")
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// max number of automations that can chain on top of each other
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const MAX_AUTOMATION_CHAIN = 5
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/**
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* Special emitter which takes the count of automation runs which have occurred and blocks an
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* automation from running if it has reached the maximum number of chained automations runs.
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* This essentially "fakes" the normal emitter to add some functionality in-between to stop automations
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* from getting stuck endlessly chaining.
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*/
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class AutomationEmitter {
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constructor(chainCount) {
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this.chainCount = chainCount
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this.metadata = {
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automationChainCount: chainCount,
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}
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}
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emitRow(eventName, appId, row, table = null) {
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// don't emit even if we've reached max automation chain
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if (this.chainCount > MAX_AUTOMATION_CHAIN) {
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return
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}
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rowEmission({
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emitter: mainEmitter,
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eventName,
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appId,
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row,
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table,
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metadata: this.metadata,
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})
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}
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emitTable(eventName, appId, table = null) {
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// don't emit even if we've reached max automation chain
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if (this.chainCount > MAX_AUTOMATION_CHAIN) {
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return
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}
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tableEmission({
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emitter: mainEmitter,
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eventName,
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appId,
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table,
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metadata: this.metadata,
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})
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}
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}
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module.exports = AutomationEmitter
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