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2026-05-02 20:07:02 +02:00
parent ce8672e283
commit 34dc9aec52
9428 changed files with 1733330 additions and 0 deletions
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+/*
+    This is a simple promise queue that allows you to limit the number of concurrent promises
+    that are running at any given time. It's used to limit the number of concurrent
+    prefetch requests that are being made to the server but could be used for other
+    things as well.
+*/ "use strict";
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+Object.defineProperty(exports, "PromiseQueue", {
+    enumerable: true,
+    get: function() {
+        return PromiseQueue;
+    }
+});
+class PromiseQueue {
+    #maxConcurrency;
+    #runningCount;
+    #queue;
+    constructor(maxConcurrency = 5){
+        this.#maxConcurrency = maxConcurrency;
+        this.#runningCount = 0;
+        this.#queue = [];
+    }
+    enqueue(promiseFn) {
+        let taskResolve;
+        let taskReject;
+        const taskPromise = new Promise((resolve, reject)=>{
+            taskResolve = resolve;
+            taskReject = reject;
+        });
+        const task = async ()=>{
+            try {
+                this.#runningCount++;
+                const result = await promiseFn();
+                taskResolve(result);
+            } catch (error) {
+                taskReject(error);
+            } finally{
+                this.#runningCount--;
+                this.#processNext();
+            }
+        };
+        const enqueueResult = {
+            promiseFn: taskPromise,
+            task
+        };
+        // wonder if we should take a LIFO approach here
+        this.#queue.push(enqueueResult);
+        this.#processNext();
+        return taskPromise;
+    }
+    bump(promiseFn) {
+        const index = this.#queue.findIndex((item)=>item.promiseFn === promiseFn);
+        if (index > -1) {
+            const bumpedItem = this.#queue.splice(index, 1)[0];
+            this.#queue.unshift(bumpedItem);
+            this.#processNext(true);
+        }
+    }
+    #processNext(forced = false) {
+        if ((this.#runningCount < this.#maxConcurrency || forced) && this.#queue.length > 0) {
+            this.#queue.shift()?.task();
+        }
+    }
+}
+
+if ((typeof exports.default === 'function' || (typeof exports.default === 'object' && exports.default !== null)) && typeof exports.default.__esModule === 'undefined') {
+  Object.defineProperty(exports.default, '__esModule', { value: true });
+  Object.assign(exports.default, exports);
+  module.exports = exports.default;
+}
+
+//# sourceMappingURL=promise-queue.js.map