newsroom/node_modules/nostr-tools/lib/esm/utils.js

// utils.ts
import { bytesToHex, hexToBytes } from "@noble/hashes/utils";
var utf8Decoder = new TextDecoder("utf-8");
var utf8Encoder = new TextEncoder();
function normalizeURL(url) {
  try {
    if (url.indexOf("://") === -1)
      url = "wss://" + url;
    let p = new URL(url);
    if (p.protocol === "http:")
      p.protocol = "ws:";
    else if (p.protocol === "https:")
      p.protocol = "wss:";
    p.pathname = p.pathname.replace(/\/+/g, "/");
    if (p.pathname.endsWith("/"))
      p.pathname = p.pathname.slice(0, -1);
    if (p.port === "80" && p.protocol === "ws:" || p.port === "443" && p.protocol === "wss:")
      p.port = "";
    p.searchParams.sort();
    p.hash = "";
    return p.toString();
  } catch (e) {
    throw new Error(`Invalid URL: ${url}`);
  }
}
function insertEventIntoDescendingList(sortedArray, event) {
  const [idx, found] = binarySearch(sortedArray, (b) => {
    if (event.id === b.id)
      return 0;
    if (event.created_at === b.created_at)
      return -1;
    return b.created_at - event.created_at;
  });
  if (!found) {
    sortedArray.splice(idx, 0, event);
  }
  return sortedArray;
}
function insertEventIntoAscendingList(sortedArray, event) {
  const [idx, found] = binarySearch(sortedArray, (b) => {
    if (event.id === b.id)
      return 0;
    if (event.created_at === b.created_at)
      return -1;
    return event.created_at - b.created_at;
  });
  if (!found) {
    sortedArray.splice(idx, 0, event);
  }
  return sortedArray;
}
function binarySearch(arr, compare) {
  let start = 0;
  let end = arr.length - 1;
  while (start <= end) {
    const mid = Math.floor((start + end) / 2);
    const cmp = compare(arr[mid]);
    if (cmp === 0) {
      return [mid, true];
    }
    if (cmp < 0) {
      end = mid - 1;
    } else {
      start = mid + 1;
    }
  }
  return [start, false];
}
var QueueNode = class {
  value;
  next = null;
  prev = null;
  constructor(message) {
    this.value = message;
  }
};
var Queue = class {
  first;
  last;
  constructor() {
    this.first = null;
    this.last = null;
  }
  enqueue(value) {
    const newNode = new QueueNode(value);
    if (!this.last) {
      this.first = newNode;
      this.last = newNode;
    } else if (this.last === this.first) {
      this.last = newNode;
      this.last.prev = this.first;
      this.first.next = newNode;
    } else {
      newNode.prev = this.last;
      this.last.next = newNode;
      this.last = newNode;
    }
    return true;
  }
  dequeue() {
    if (!this.first)
      return null;
    if (this.first === this.last) {
      const target2 = this.first;
      this.first = null;
      this.last = null;
      return target2.value;
    }
    const target = this.first;
    this.first = target.next;
    if (this.first) {
      this.first.prev = null;
    }
    return target.value;
  }
};
export {
  Queue,
  QueueNode,
  binarySearch,
  bytesToHex,
  hexToBytes,
  insertEventIntoAscendingList,
  insertEventIntoDescendingList,
  normalizeURL,
  utf8Decoder,
  utf8Encoder
};