@tachybase/module-workflow/dist/server/features/delay/DelayInstruction.js

A powerful BPM tool that provides foundational support for business automation, with the capability to extend unlimited triggers and nodes.

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var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
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  }
  return to;
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var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
var DelayInstruction_exports = {};
__export(DelayInstruction_exports, {
  default: () => DelayInstruction_default
});
module.exports = __toCommonJS(DelayInstruction_exports);
var import__ = require("../..");
class DelayInstruction_default extends import__.Instruction {
  constructor(workflow) {
    super(workflow);
    this.workflow = workflow;
    this.timers = /* @__PURE__ */ new Map();
    this.load = async () => {
      const { model } = this.workflow.app.db.getCollection("jobs");
      const jobs = await model.findAll({
        where: {
          status: import__.JOB_STATUS.PENDING
        },
        include: [
          {
            association: "execution",
            attributes: [],
            where: {
              status: import__.EXECUTION_STATUS.STARTED
            },
            required: true
          },
          {
            association: "node",
            attributes: ["config"],
            where: {
              type: "delay"
            },
            required: true
          }
        ]
      });
      jobs.forEach((job) => {
        this.schedule(job);
      });
    };
    this.unload = () => {
      for (const timer of this.timers.values()) {
        clearTimeout(timer);
      }
      this.timers = /* @__PURE__ */ new Map();
    };
    workflow.app.on("afterStart", this.load);
    workflow.app.on("beforeStop", this.unload);
  }
  schedule(job) {
    const now = /* @__PURE__ */ new Date();
    const createdAt = Date.parse(job.createdAt);
    const delay = createdAt + job.node.config.duration - now.getTime();
    if (delay > 0) {
      const trigger = this.trigger.bind(this, job);
      this.timers.set(job.id, setTimeout(trigger, delay));
    } else {
      this.trigger(job);
    }
  }
  async trigger(job) {
    if (!job.execution) {
      job.execution = await job.getExecution();
    }
    if (job.execution.status === import__.EXECUTION_STATUS.STARTED) {
      this.workflow.resume(job);
    }
    if (this.timers.get(job.id)) {
      this.timers.delete(job.id);
    }
  }
  async run(node, prevJob, processor) {
    const job = await processor.saveJob({
      status: import__.JOB_STATUS.PENDING,
      result: null,
      nodeId: node.id,
      nodeKey: node.key,
      upstreamId: (prevJob == null ? void 0 : prevJob.id) ?? null
    });
    job.node = node;
    this.schedule(job);
    return processor.exit();
  }
  async resume(node, prevJob, processor) {
    const { endStatus } = node.config;
    prevJob.set("status", endStatus);
    return prevJob;
  }
}