@tanstack/db/dist/cjs/strategies/queueStrategy.cjs

A reactive client store for building super fast apps on sync

"use strict";
Object.defineProperty(exports, Symbol.toStringTag, { value: "Module" });
const liteQueuer = require("@tanstack/pacer-lite/lite-queuer");
const errors = require("../errors.cjs");
const commitCompletion = require("./commit-completion.cjs");
function queueStrategy(options) {
  let processingChain = Promise.resolve();
  let disposed = false;
  const queuer = new liteQueuer.LiteQueuer(
    ({ run, onCommit }) => {
      processingChain = processingChain.then(async () => {
        await commitCompletion.runWithCommitCompletion(run, onCommit);
      }).catch(() => {
      });
    },
    {
      wait: options?.wait ?? 0,
      maxSize: options?.maxSize,
      addItemsTo: options?.addItemsTo ?? `back`,
      // Default FIFO: add to back
      getItemsFrom: options?.getItemsFrom ?? `front`,
      // Default FIFO: get from front
      started: true
      // Start processing immediately
    }
  );
  return {
    _type: `queue`,
    options,
    execute: (fn, _onAdmit, onCommit) => {
      if (disposed) throw new errors.QueueDisposedError();
      return queuer.addItem({ run: fn, onCommit });
    },
    cleanup: () => {
      disposed = true;
      if (queuer.isEmpty) queuer.stop();
    }
  };
}
exports.queueStrategy = queueStrategy;
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