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function clamp(n, min, max) {
return Math.min(max, Math.max(min, n));
}
function sum(...args) {
return flattenArrayable(args).reduce((a, b) => a + b, 0);
}
function lerp(min, max, t) {
const interpolation = clamp(t, 0, 1);
return min + (max - min) * interpolation;
}
function remap(n, inMin, inMax, outMin, outMax) {
const interpolation = (n - inMin) / (inMax - inMin);
return lerp(outMin, outMax, interpolation);
}
function toArray(array) {
array = array ?? [];
return Array.isArray(array) ? array : [array];
}
function flattenArrayable(array) {
return toArray(array).flat(1);
}
function mergeArrayable(...args) {
return args.flatMap((i) => toArray(i));
}
function partition(array, ...filters) {
const result = Array.from({ length: filters.length + 1 }).fill(null).map(() => []);
array.forEach((e, idx, arr) => {
let i = 0;
for (const filter of filters) {
if (filter(e, idx, arr)) {
result[i].push(e);
return;
}
i += 1;
}
result[i].push(e);
});
return result;
}
function uniq(array) {
return Array.from(new Set(array));
}
function uniqueBy(array, equalFn) {
return array.reduce((acc, cur) => {
const index = acc.findIndex((item) => equalFn(cur, item));
if (index === -1)
acc.push(cur);
return acc;
}, []);
}
function last(array) {
return at(array, -1);
}
function remove(array, value) {
if (!array)
return false;
const index = array.indexOf(value);
if (index >= 0) {
array.splice(index, 1);
return true;
}
return false;
}
function at(array, index) {
const len = array.length;
if (!len)
return void 0;
if (index < 0)
index += len;
return array[index];
}
function range(...args) {
let start, stop, step;
if (args.length === 1) {
start = 0;
step = 1;
[stop] = args;
} else {
[start, stop, step = 1] = args;
}
const arr = [];
let current = start;
while (current < stop) {
arr.push(current);
current += step || 1;
}
return arr;
}
function move(arr, from, to) {
arr.splice(to, 0, arr.splice(from, 1)[0]);
return arr;
}
function clampArrayRange(n, arr) {
return clamp(n, 0, arr.length - 1);
}
function sample(arr, quantity) {
return Array.from({ length: quantity }, (_) => arr[Math.round(Math.random() * (arr.length - 1))]);
}
function shuffle(array) {
for (let i = array.length - 1; i > 0; i--) {
const j = Math.floor(Math.random() * (i + 1));
[array[i], array[j]] = [array[j], array[i]];
}
return array;
}
function assert(condition, message) {
if (!condition)
throw new Error(message);
}
const toString = (v) => Object.prototype.toString.call(v);
function getTypeName(v) {
if (v === null)
return "null";
const type = toString(v).slice(8, -1).toLowerCase();
return typeof v === "object" || typeof v === "function" ? type : typeof v;
}
function noop() {
}
function isDeepEqual(value1, value2) {
const type1 = getTypeName(value1);
const type2 = getTypeName(value2);
if (type1 !== type2)
return false;
if (type1 === "array") {
if (value1.length !== value2.length)
return false;
return value1.every((item, i) => {
return isDeepEqual(item, value2[i]);
});
}
if (type1 === "object") {
const keyArr = Object.keys(value1);
if (keyArr.length !== Object.keys(value2).length)
return false;
return keyArr.every((key) => {
return isDeepEqual(value1[key], value2[key]);
});
}
return Object.is(value1, value2);
}
function notNullish(v) {
return v != null;
}
function noNull(v) {
return v !== null;
}
function notUndefined(v) {
return v !== void 0;
}
function isTruthy(v) {
return Boolean(v);
}
const isDef = (val) => typeof val !== "undefined";
const isBoolean = (val) => typeof val === "boolean";
const isFunction = (val) => typeof val === "function";
const isNumber = (val) => typeof val === "number";
const isString = (val) => typeof val === "string";
const isObject = (val) => toString(val) === "[object Object]";
const isUndefined = (val) => toString(val) === "[object Undefined]";
const isNull = (val) => toString(val) === "[object Null]";
const isRegExp = (val) => toString(val) === "[object RegExp]";
const isDate = (val) => toString(val) === "[object Date]";
const isWindow = (val) => typeof window !== "undefined" && toString(val) === "[object Window]";
const isBrowser = typeof window !== "undefined";
function slash(str) {
return str.replace(/\\/g, "/");
}
function ensurePrefix(prefix, str) {
if (!str.startsWith(prefix))
return prefix + str;
return str;
}
function ensureSuffix(suffix, str) {
if (!str.endsWith(suffix))
return str + suffix;
return str;
}
function template(str, ...args) {
const [firstArg, fallback] = args;
if (isObject(firstArg)) {
const vars = firstArg;
return str.replace(/{([\w\d]+)}/g, (_, key) => vars[key] || ((typeof fallback === "function" ? fallback(key) : fallback) ?? key));
} else {
return str.replace(/{(\d+)}/g, (_, key) => {
const index = Number(key);
if (Number.isNaN(index))
return key;
return args[index];
});
}
}
const urlAlphabet = "useandom-26T198340PX75pxJACKVERYMINDBUSHWOLF_GQZbfghjklqvwyzrict";
function randomStr(size = 16, dict = urlAlphabet) {
let id = "";
let i = size;
const len = dict.length;
while (i--)
id += dict[Math.random() * len | 0];
return id;
}
function capitalize(str) {
return str[0].toUpperCase() + str.slice(1).toLowerCase();
}
const _reFullWs = /^\s*$/;
function unindent(str) {
const lines = (typeof str === "string" ? str : str[0]).split("\n");
const whitespaceLines = lines.map((line) => _reFullWs.test(line));
const commonIndent = lines.reduce((min, line, idx) => {
var _a;
if (whitespaceLines[idx])
return min;
const indent = (_a = line.match(/^\s*/)) == null ? void 0 : _a[0].length;
return indent === void 0 ? min : Math.min(min, indent);
}, Number.POSITIVE_INFINITY);
let emptyLinesHead = 0;
while (emptyLinesHead < lines.length && whitespaceLines[emptyLinesHead])
emptyLinesHead++;
let emptyLinesTail = 0;
while (emptyLinesTail < lines.length && whitespaceLines[lines.length - emptyLinesTail - 1])
emptyLinesTail++;
return lines.slice(emptyLinesHead, lines.length - emptyLinesTail).map((line) => line.slice(commonIndent)).join("\n");
}
const timestamp = () => +Date.now();
function batchInvoke(functions) {
functions.forEach((fn) => fn && fn());
}
function invoke(fn) {
return fn();
}
function tap(value, callback) {
callback(value);
return value;
}
function objectMap(obj, fn) {
return Object.fromEntries(
Object.entries(obj).map(([k, v]) => fn(k, v)).filter(notNullish)
);
}
function isKeyOf(obj, k) {
return k in obj;
}
function objectKeys(obj) {
return Object.keys(obj);
}
function objectEntries(obj) {
return Object.entries(obj);
}
function deepMerge(target, ...sources) {
if (!sources.length)
return target;
const source = sources.shift();
if (source === void 0)
return target;
if (isMergableObject(target) && isMergableObject(source)) {
objectKeys(source).forEach((key) => {
if (key === "__proto__" || key === "constructor" || key === "prototype")
return;
if (isMergableObject(source[key])) {
if (!target[key])
target[key] = {};
if (isMergableObject(target[key])) {
deepMerge(target[key], source[key]);
} else {
target[key] = source[key];
}
} else {
target[key] = source[key];
}
});
}
return deepMerge(target, ...sources);
}
function deepMergeWithArray(target, ...sources) {
if (!sources.length)
return target;
const source = sources.shift();
if (source === void 0)
return target;
if (Array.isArray(target) && Array.isArray(source))
target.push(...source);
if (isMergableObject(target) && isMergableObject(source)) {
objectKeys(source).forEach((key) => {
if (key === "__proto__" || key === "constructor" || key === "prototype")
return;
if (Array.isArray(source[key])) {
if (!target[key])
target[key] = [];
deepMergeWithArray(target[key], source[key]);
} else if (isMergableObject(source[key])) {
if (!target[key])
target[key] = {};
deepMergeWithArray(target[key], source[key]);
} else {
target[key] = source[key];
}
});
}
return deepMergeWithArray(target, ...sources);
}
function isMergableObject(item) {
return isObject(item) && !Array.isArray(item);
}
function objectPick(obj, keys, omitUndefined = false) {
return keys.reduce((n, k) => {
if (k in obj) {
if (!omitUndefined || obj[k] !== void 0)
n[k] = obj[k];
}
return n;
}, {});
}
function clearUndefined(obj) {
Object.keys(obj).forEach((key) => obj[key] === void 0 ? delete obj[key] : {});
return obj;
}
function hasOwnProperty(obj, v) {
if (obj == null)
return false;
return Object.prototype.hasOwnProperty.call(obj, v);
}
function createSingletonPromise(fn) {
let _promise;
function wrapper() {
if (!_promise)
_promise = fn();
return _promise;
}
wrapper.reset = async () => {
const _prev = _promise;
_promise = void 0;
if (_prev)
await _prev;
};
return wrapper;
}
function sleep(ms, callback) {
return new Promise(
(resolve) => setTimeout(async () => {
await (callback == null ? void 0 : callback());
resolve();
}, ms)
);
}
function createPromiseLock() {
const locks = [];
return {
async run(fn) {
const p = fn();
locks.push(p);
try {
return await p;
} finally {
remove(locks, p);
}
},
async wait() {
await Promise.allSettled(locks);
},
isWaiting() {
return Boolean(locks.length);
},
clear() {
locks.length = 0;
}
};
}
function createControlledPromise() {
let resolve, reject;
const promise = new Promise((_resolve, _reject) => {
resolve = _resolve;
reject = _reject;
});
promise.resolve = resolve;
promise.reject = reject;
return promise;
}
/* eslint-disable no-undefined,no-param-reassign,no-shadow */
/**
* Throttle execution of a function. Especially useful for rate limiting
* execution of handlers on events like resize and scroll.
*
* @param {number} delay - A zero-or-greater delay in milliseconds. For event callbacks, values around 100 or 250 (or even higher)
* are most useful.
* @param {Function} callback - A function to be executed after delay milliseconds. The `this` context and all arguments are passed through,
* as-is, to `callback` when the throttled-function is executed.
* @param {object} [options] - An object to configure options.
* @param {boolean} [options.noTrailing] - Optional, defaults to false. If noTrailing is true, callback will only execute every `delay` milliseconds
* while the throttled-function is being called. If noTrailing is false or unspecified, callback will be executed
* one final time after the last throttled-function call. (After the throttled-function has not been called for
* `delay` milliseconds, the internal counter is reset).
* @param {boolean} [options.noLeading] - Optional, defaults to false. If noLeading is false, the first throttled-function call will execute callback
* immediately. If noLeading is true, the first the callback execution will be skipped. It should be noted that
* callback will never executed if both noLeading = true and noTrailing = true.
* @param {boolean} [options.debounceMode] - If `debounceMode` is true (at begin), schedule `clear` to execute after `delay` ms. If `debounceMode` is
* false (at end), schedule `callback` to execute after `delay` ms.
*
* @returns {Function} A new, throttled, function.
*/
function throttle (delay, callback, options) {
var _ref = options || {},
_ref$noTrailing = _ref.noTrailing,
noTrailing = _ref$noTrailing === void 0 ? false : _ref$noTrailing,
_ref$noLeading = _ref.noLeading,
noLeading = _ref$noLeading === void 0 ? false : _ref$noLeading,
_ref$debounceMode = _ref.debounceMode,
debounceMode = _ref$debounceMode === void 0 ? undefined : _ref$debounceMode;
/*
* After wrapper has stopped being called, this timeout ensures that
* `callback` is executed at the proper times in `throttle` and `end`
* debounce modes.
*/
var timeoutID;
var cancelled = false; // Keep track of the last time `callback` was executed.
var lastExec = 0; // Function to clear existing timeout
function clearExistingTimeout() {
if (timeoutID) {
clearTimeout(timeoutID);
}
} // Function to cancel next exec
function cancel(options) {
var _ref2 = options || {},
_ref2$upcomingOnly = _ref2.upcomingOnly,
upcomingOnly = _ref2$upcomingOnly === void 0 ? false : _ref2$upcomingOnly;
clearExistingTimeout();
cancelled = !upcomingOnly;
}
/*
* The `wrapper` function encapsulates all of the throttling / debouncing
* functionality and when executed will limit the rate at which `callback`
* is executed.
*/
function wrapper() {
for (var _len = arguments.length, arguments_ = new Array(_len), _key = 0; _key < _len; _key++) {
arguments_[_key] = arguments[_key];
}
var self = this;
var elapsed = Date.now() - lastExec;
if (cancelled) {
return;
} // Execute `callback` and update the `lastExec` timestamp.
function exec() {
lastExec = Date.now();
callback.apply(self, arguments_);
}
/*
* If `debounceMode` is true (at begin) this is used to clear the flag
* to allow future `callback` executions.
*/
function clear() {
timeoutID = undefined;
}
if (!noLeading && debounceMode && !timeoutID) {
/*
* Since `wrapper` is being called for the first time and
* `debounceMode` is true (at begin), execute `callback`
* and noLeading != true.
*/
exec();
}
clearExistingTimeout();
if (debounceMode === undefined && elapsed > delay) {
if (noLeading) {
/*
* In throttle mode with noLeading, if `delay` time has
* been exceeded, update `lastExec` and schedule `callback`
* to execute after `delay` ms.
*/
lastExec = Date.now();
if (!noTrailing) {
timeoutID = setTimeout(debounceMode ? clear : exec, delay);
}
} else {
/*
* In throttle mode without noLeading, if `delay` time has been exceeded, execute
* `callback`.
*/
exec();
}
} else if (noTrailing !== true) {
/*
* In trailing throttle mode, since `delay` time has not been
* exceeded, schedule `callback` to execute `delay` ms after most
* recent execution.
*
* If `debounceMode` is true (at begin), schedule `clear` to execute
* after `delay` ms.
*
* If `debounceMode` is false (at end), schedule `callback` to
* execute after `delay` ms.
*/
timeoutID = setTimeout(debounceMode ? clear : exec, debounceMode === undefined ? delay - elapsed : delay);
}
}
wrapper.cancel = cancel; // Return the wrapper function.
return wrapper;
}
/* eslint-disable no-undefined */
/**
* Debounce execution of a function. Debouncing, unlike throttling,
* guarantees that a function is only executed a single time, either at the
* very beginning of a series of calls, or at the very end.
*
* @param {number} delay - A zero-or-greater delay in milliseconds. For event callbacks, values around 100 or 250 (or even higher) are most useful.
* @param {Function} callback - A function to be executed after delay milliseconds. The `this` context and all arguments are passed through, as-is,
* to `callback` when the debounced-function is executed.
* @param {object} [options] - An object to configure options.
* @param {boolean} [options.atBegin] - Optional, defaults to false. If atBegin is false or unspecified, callback will only be executed `delay` milliseconds
* after the last debounced-function call. If atBegin is true, callback will be executed only at the first debounced-function call.
* (After the throttled-function has not been called for `delay` milliseconds, the internal counter is reset).
*
* @returns {Function} A new, debounced function.
*/
function debounce (delay, callback, options) {
var _ref = options || {},
_ref$atBegin = _ref.atBegin,
atBegin = _ref$atBegin === void 0 ? false : _ref$atBegin;
return throttle(delay, callback, {
debounceMode: atBegin !== false
});
}
/*
How it works:
`this.#head` is an instance of `Node` which keeps track of its current value and nests another instance of `Node` that keeps the value that comes after it. When a value is provided to `.enqueue()`, the code needs to iterate through `this.#head`, going deeper and deeper to find the last value. However, iterating through every single item is slow. This problem is solved by saving a reference to the last value as `this.#tail` so that it can reference it to add a new value.
*/
class Node {
value;
next;
constructor(value) {
this.value = value;
}
}
class Queue {
#head;
#tail;
#size;
constructor() {
this.clear();
}
enqueue(value) {
const node = new Node(value);
if (this.#head) {
this.#tail.next = node;
this.#tail = node;
} else {
this.#head = node;
this.#tail = node;
}
this.#size++;
}
dequeue() {
const current = this.#head;
if (!current) {
return;
}
this.#head = this.#head.next;
this.#size--;
return current.value;
}
clear() {
this.#head = undefined;
this.#tail = undefined;
this.#size = 0;
}
get size() {
return this.#size;
}
* [Symbol.iterator]() {
let current = this.#head;
while (current) {
yield current.value;
current = current.next;
}
}
}
const AsyncResource = {
bind(fn, _type, thisArg) {
return fn.bind(thisArg);
},
};
function pLimit(concurrency) {
if (!((Number.isInteger(concurrency) || concurrency === Number.POSITIVE_INFINITY) && concurrency > 0)) {
throw new TypeError('Expected `concurrency` to be a number from 1 and up');
}
const queue = new Queue();
let activeCount = 0;
const next = () => {
activeCount--;
if (queue.size > 0) {
queue.dequeue()();
}
};
const run = async (function_, resolve, arguments_) => {
activeCount++;
const result = (async () => function_(...arguments_))();
resolve(result);
try {
await result;
} catch {}
next();
};
const enqueue = (function_, resolve, arguments_) => {
queue.enqueue(
AsyncResource.bind(run.bind(undefined, function_, resolve, arguments_)),
);
(async () => {
// This function needs to wait until the next microtask before comparing
// `activeCount` to `concurrency`, because `activeCount` is updated asynchronously
// when the run function is dequeued and called. The comparison in the if-statement
// needs to happen asynchronously as well to get an up-to-date value for `activeCount`.
await Promise.resolve();
if (activeCount < concurrency && queue.size > 0) {
queue.dequeue()();
}
})();
};
const generator = (function_, ...arguments_) => new Promise(resolve => {
enqueue(function_, resolve, arguments_);
});
Object.defineProperties(generator, {
activeCount: {
get: () => activeCount,
},
pendingCount: {
get: () => queue.size,
},
clearQueue: {
value() {
queue.clear();
},
},
});
return generator;
}
const VOID = Symbol("p-void");
class PInstance extends Promise {
constructor(items = [], options) {
super(() => {
});
this.items = items;
this.options = options;
this.promises = /* @__PURE__ */ new Set();
}
get promise() {
var _a;
let batch;
const items = [...Array.from(this.items), ...Array.from(this.promises)];
if ((_a = this.options) == null ? void 0 : _a.concurrency) {
const limit = pLimit(this.options.concurrency);
batch = Promise.all(items.map((p2) => limit(() => p2)));
} else {
batch = Promise.all(items);
}
return batch.then((l) => l.filter((i) => i !== VOID));
}
add(...args) {
args.forEach((i) => {
this.promises.add(i);
});
}
map(fn) {
return new PInstance(
Array.from(this.items).map(async (i, idx) => {
const v = await i;
if (v === VOID)
return VOID;
return fn(v, idx);
}),
this.options
);
}
filter(fn) {
return new PInstance(
Array.from(this.items).map(async (i, idx) => {
const v = await i;
const r = await fn(v, idx);
if (!r)
return VOID;
return v;
}),
this.options
);
}
forEach(fn) {
return this.map(fn).then();
}
reduce(fn, initialValue) {
return this.promise.then((array) => array.reduce(fn, initialValue));
}
clear() {
this.promises.clear();
}
then(fn) {
const p2 = this.promise;
if (fn)
return p2.then(fn);
else
return p2;
}
catch(fn) {
return this.promise.catch(fn);
}
finally(fn) {
return this.promise.finally(fn);
}
}
function p(items, options) {
return new PInstance(items, options);
}
export { assert, at, batchInvoke, capitalize, clamp, clampArrayRange, clearUndefined, createControlledPromise, createPromiseLock, createSingletonPromise, debounce, deepMerge, deepMergeWithArray, ensurePrefix, ensureSuffix, flattenArrayable, getTypeName, hasOwnProperty, invoke, isBoolean, isBrowser, isDate, isDeepEqual, isDef, isFunction, isKeyOf, isNull, isNumber, isObject, isRegExp, isString, isTruthy, isUndefined, isWindow, last, lerp, mergeArrayable, move, noNull, noop, notNullish, notUndefined, objectEntries, objectKeys, objectMap, objectPick, p, partition, randomStr, range, remap, remove, sample, shuffle, slash, sleep, sum, tap, template, throttle, timestamp, toArray, toString, unindent, uniq, uniqueBy };