import { commonjsGlobal } from '../../_virtual/_commonjsHelpers.js';

/**
 * lodash (Custom Build) <https://lodash.com/>
 * Build: `lodash modularize exports="npm" -o ./`
 * Copyright jQuery Foundation and other contributors <https://jquery.org/>
 * Released under MIT license <https://lodash.com/license>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 */

var lodash_throttle;
var hasRequiredLodash_throttle;

function requireLodash_throttle () {
	if (hasRequiredLodash_throttle) return lodash_throttle;
	hasRequiredLodash_throttle = 1;
	/** Used as the `TypeError` message for "Functions" methods. */
	var FUNC_ERROR_TEXT = 'Expected a function';

	/** Used as references for various `Number` constants. */
	var NAN = 0 / 0;

	/** `Object#toString` result references. */
	var symbolTag = '[object Symbol]';

	/** Used to match leading and trailing whitespace. */
	var reTrim = /^\s+|\s+$/g;

	/** Used to detect bad signed hexadecimal string values. */
	var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;

	/** Used to detect binary string values. */
	var reIsBinary = /^0b[01]+$/i;

	/** Used to detect octal string values. */
	var reIsOctal = /^0o[0-7]+$/i;

	/** Built-in method references without a dependency on `root`. */
	var freeParseInt = parseInt;

	/** Detect free variable `global` from Node.js. */
	var freeGlobal = typeof commonjsGlobal == 'object' && commonjsGlobal && commonjsGlobal.Object === Object && commonjsGlobal;

	/** Detect free variable `self`. */
	var freeSelf = typeof self == 'object' && self && self.Object === Object && self;

	/** Used as a reference to the global object. */
	var root = freeGlobal || freeSelf || Function('return this')();

	/** Used for built-in method references. */
	var objectProto = Object.prototype;

	/**
	 * Used to resolve the
	 * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
	 * of values.
	 */
	var objectToString = objectProto.toString;

	/* Built-in method references for those with the same name as other `lodash` methods. */
	var nativeMax = Math.max,
	    nativeMin = Math.min;

	/**
	 * Gets the timestamp of the number of milliseconds that have elapsed since
	 * the Unix epoch (1 January 1970 00:00:00 UTC).
	 *
	 * @static
	 * @memberOf _
	 * @since 2.4.0
	 * @category Date
	 * @returns {number} Returns the timestamp.
	 * @example
	 *
	 * _.defer(function(stamp) {
	 *   console.log(_.now() - stamp);
	 * }, _.now());
	 * // => Logs the number of milliseconds it took for the deferred invocation.
	 */
	var now = function() {
	  return root.Date.now();
	};

	/**
	 * Creates a debounced function that delays invoking `func` until after `wait`
	 * milliseconds have elapsed since the last time the debounced function was
	 * invoked. The debounced function comes with a `cancel` method to cancel
	 * delayed `func` invocations and a `flush` method to immediately invoke them.
	 * Provide `options` to indicate whether `func` should be invoked on the
	 * leading and/or trailing edge of the `wait` timeout. The `func` is invoked
	 * with the last arguments provided to the debounced function. Subsequent
	 * calls to the debounced function return the result of the last `func`
	 * invocation.
	 *
	 * **Note:** If `leading` and `trailing` options are `true`, `func` is
	 * invoked on the trailing edge of the timeout only if the debounced function
	 * is invoked more than once during the `wait` timeout.
	 *
	 * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
	 * until to the next tick, similar to `setTimeout` with a timeout of `0`.
	 *
	 * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
	 * for details over the differences between `_.debounce` and `_.throttle`.
	 *
	 * @static
	 * @memberOf _
	 * @since 0.1.0
	 * @category Function
	 * @param {Function} func The function to debounce.
	 * @param {number} [wait=0] The number of milliseconds to delay.
	 * @param {Object} [options={}] The options object.
	 * @param {boolean} [options.leading=false]
	 *  Specify invoking on the leading edge of the timeout.
	 * @param {number} [options.maxWait]
	 *  The maximum time `func` is allowed to be delayed before it's invoked.
	 * @param {boolean} [options.trailing=true]
	 *  Specify invoking on the trailing edge of the timeout.
	 * @returns {Function} Returns the new debounced function.
	 * @example
	 *
	 * // Avoid costly calculations while the window size is in flux.
	 * jQuery(window).on('resize', _.debounce(calculateLayout, 150));
	 *
	 * // Invoke `sendMail` when clicked, debouncing subsequent calls.
	 * jQuery(element).on('click', _.debounce(sendMail, 300, {
	 *   'leading': true,
	 *   'trailing': false
	 * }));
	 *
	 * // Ensure `batchLog` is invoked once after 1 second of debounced calls.
	 * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });
	 * var source = new EventSource('/stream');
	 * jQuery(source).on('message', debounced);
	 *
	 * // Cancel the trailing debounced invocation.
	 * jQuery(window).on('popstate', debounced.cancel);
	 */
	function debounce(func, wait, options) {
	  var lastArgs,
	      lastThis,
	      maxWait,
	      result,
	      timerId,
	      lastCallTime,
	      lastInvokeTime = 0,
	      leading = false,
	      maxing = false,
	      trailing = true;

	  if (typeof func != 'function') {
	    throw new TypeError(FUNC_ERROR_TEXT);
	  }
	  wait = toNumber(wait) || 0;
	  if (isObject(options)) {
	    leading = !!options.leading;
	    maxing = 'maxWait' in options;
	    maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;
	    trailing = 'trailing' in options ? !!options.trailing : trailing;
	  }

	  function invokeFunc(time) {
	    var args = lastArgs,
	        thisArg = lastThis;

	    lastArgs = lastThis = undefined;
	    lastInvokeTime = time;
	    result = func.apply(thisArg, args);
	    return result;
	  }

	  function leadingEdge(time) {
	    // Reset any `maxWait` timer.
	    lastInvokeTime = time;
	    // Start the timer for the trailing edge.
	    timerId = setTimeout(timerExpired, wait);
	    // Invoke the leading edge.
	    return leading ? invokeFunc(time) : result;
	  }

	  function remainingWait(time) {
	    var timeSinceLastCall = time - lastCallTime,
	        timeSinceLastInvoke = time - lastInvokeTime,
	        result = wait - timeSinceLastCall;

	    return maxing ? nativeMin(result, maxWait - timeSinceLastInvoke) : result;
	  }

	  function shouldInvoke(time) {
	    var timeSinceLastCall = time - lastCallTime,
	        timeSinceLastInvoke = time - lastInvokeTime;

	    // Either this is the first call, activity has stopped and we're at the
	    // trailing edge, the system time has gone backwards and we're treating
	    // it as the trailing edge, or we've hit the `maxWait` limit.
	    return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||
	      (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));
	  }

	  function timerExpired() {
	    var time = now();
	    if (shouldInvoke(time)) {
	      return trailingEdge(time);
	    }
	    // Restart the timer.
	    timerId = setTimeout(timerExpired, remainingWait(time));
	  }

	  function trailingEdge(time) {
	    timerId = undefined;

	    // Only invoke if we have `lastArgs` which means `func` has been
	    // debounced at least once.
	    if (trailing && lastArgs) {
	      return invokeFunc(time);
	    }
	    lastArgs = lastThis = undefined;
	    return result;
	  }

	  function cancel() {
	    if (timerId !== undefined) {
	      clearTimeout(timerId);
	    }
	    lastInvokeTime = 0;
	    lastArgs = lastCallTime = lastThis = timerId = undefined;
	  }

	  function flush() {
	    return timerId === undefined ? result : trailingEdge(now());
	  }

	  function debounced() {
	    var time = now(),
	        isInvoking = shouldInvoke(time);

	    lastArgs = arguments;
	    lastThis = this;
	    lastCallTime = time;

	    if (isInvoking) {
	      if (timerId === undefined) {
	        return leadingEdge(lastCallTime);
	      }
	      if (maxing) {
	        // Handle invocations in a tight loop.
	        timerId = setTimeout(timerExpired, wait);
	        return invokeFunc(lastCallTime);
	      }
	    }
	    if (timerId === undefined) {
	      timerId = setTimeout(timerExpired, wait);
	    }
	    return result;
	  }
	  debounced.cancel = cancel;
	  debounced.flush = flush;
	  return debounced;
	}

	/**
	 * Creates a throttled function that only invokes `func` at most once per
	 * every `wait` milliseconds. The throttled function comes with a `cancel`
	 * method to cancel delayed `func` invocations and a `flush` method to
	 * immediately invoke them. Provide `options` to indicate whether `func`
	 * should be invoked on the leading and/or trailing edge of the `wait`
	 * timeout. The `func` is invoked with the last arguments provided to the
	 * throttled function. Subsequent calls to the throttled function return the
	 * result of the last `func` invocation.
	 *
	 * **Note:** If `leading` and `trailing` options are `true`, `func` is
	 * invoked on the trailing edge of the timeout only if the throttled function
	 * is invoked more than once during the `wait` timeout.
	 *
	 * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
	 * until to the next tick, similar to `setTimeout` with a timeout of `0`.
	 *
	 * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
	 * for details over the differences between `_.throttle` and `_.debounce`.
	 *
	 * @static
	 * @memberOf _
	 * @since 0.1.0
	 * @category Function
	 * @param {Function} func The function to throttle.
	 * @param {number} [wait=0] The number of milliseconds to throttle invocations to.
	 * @param {Object} [options={}] The options object.
	 * @param {boolean} [options.leading=true]
	 *  Specify invoking on the leading edge of the timeout.
	 * @param {boolean} [options.trailing=true]
	 *  Specify invoking on the trailing edge of the timeout.
	 * @returns {Function} Returns the new throttled function.
	 * @example
	 *
	 * // Avoid excessively updating the position while scrolling.
	 * jQuery(window).on('scroll', _.throttle(updatePosition, 100));
	 *
	 * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.
	 * var throttled = _.throttle(renewToken, 300000, { 'trailing': false });
	 * jQuery(element).on('click', throttled);
	 *
	 * // Cancel the trailing throttled invocation.
	 * jQuery(window).on('popstate', throttled.cancel);
	 */
	function throttle(func, wait, options) {
	  var leading = true,
	      trailing = true;

	  if (typeof func != 'function') {
	    throw new TypeError(FUNC_ERROR_TEXT);
	  }
	  if (isObject(options)) {
	    leading = 'leading' in options ? !!options.leading : leading;
	    trailing = 'trailing' in options ? !!options.trailing : trailing;
	  }
	  return debounce(func, wait, {
	    'leading': leading,
	    'maxWait': wait,
	    'trailing': trailing
	  });
	}

	/**
	 * Checks if `value` is the
	 * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
	 * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
	 *
	 * @static
	 * @memberOf _
	 * @since 0.1.0
	 * @category Lang
	 * @param {*} value The value to check.
	 * @returns {boolean} Returns `true` if `value` is an object, else `false`.
	 * @example
	 *
	 * _.isObject({});
	 * // => true
	 *
	 * _.isObject([1, 2, 3]);
	 * // => true
	 *
	 * _.isObject(_.noop);
	 * // => true
	 *
	 * _.isObject(null);
	 * // => false
	 */
	function isObject(value) {
	  var type = typeof value;
	  return !!value && (type == 'object' || type == 'function');
	}

	/**
	 * Checks if `value` is object-like. A value is object-like if it's not `null`
	 * and has a `typeof` result of "object".
	 *
	 * @static
	 * @memberOf _
	 * @since 4.0.0
	 * @category Lang
	 * @param {*} value The value to check.
	 * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
	 * @example
	 *
	 * _.isObjectLike({});
	 * // => true
	 *
	 * _.isObjectLike([1, 2, 3]);
	 * // => true
	 *
	 * _.isObjectLike(_.noop);
	 * // => false
	 *
	 * _.isObjectLike(null);
	 * // => false
	 */
	function isObjectLike(value) {
	  return !!value && typeof value == 'object';
	}

	/**
	 * Checks if `value` is classified as a `Symbol` primitive or object.
	 *
	 * @static
	 * @memberOf _
	 * @since 4.0.0
	 * @category Lang
	 * @param {*} value The value to check.
	 * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.
	 * @example
	 *
	 * _.isSymbol(Symbol.iterator);
	 * // => true
	 *
	 * _.isSymbol('abc');
	 * // => false
	 */
	function isSymbol(value) {
	  return typeof value == 'symbol' ||
	    (isObjectLike(value) && objectToString.call(value) == symbolTag);
	}

	/**
	 * Converts `value` to a number.
	 *
	 * @static
	 * @memberOf _
	 * @since 4.0.0
	 * @category Lang
	 * @param {*} value The value to process.
	 * @returns {number} Returns the number.
	 * @example
	 *
	 * _.toNumber(3.2);
	 * // => 3.2
	 *
	 * _.toNumber(Number.MIN_VALUE);
	 * // => 5e-324
	 *
	 * _.toNumber(Infinity);
	 * // => Infinity
	 *
	 * _.toNumber('3.2');
	 * // => 3.2
	 */
	function toNumber(value) {
	  if (typeof value == 'number') {
	    return value;
	  }
	  if (isSymbol(value)) {
	    return NAN;
	  }
	  if (isObject(value)) {
	    var other = typeof value.valueOf == 'function' ? value.valueOf() : value;
	    value = isObject(other) ? (other + '') : other;
	  }
	  if (typeof value != 'string') {
	    return value === 0 ? value : +value;
	  }
	  value = value.replace(reTrim, '');
	  var isBinary = reIsBinary.test(value);
	  return (isBinary || reIsOctal.test(value))
	    ? freeParseInt(value.slice(2), isBinary ? 2 : 8)
	    : (reIsBadHex.test(value) ? NAN : +value);
	}

	lodash_throttle = throttle;
	return lodash_throttle;
}

export { requireLodash_throttle as __require };
