/**
 * @license Angular v21.1.4
 * (c) 2010-2026 Google LLC. https://angular.dev/
 * License: MIT
 */

import { AnimationGroupPlayer, NoopAnimationPlayer, AUTO_STYLE, ɵPRE_STYLE as _PRE_STYLE, AnimationMetadataType, sequence } from './_private_export-chunk.mjs';
import { ɵRuntimeError as _RuntimeError } from '@angular/core';

const LINE_START = '\n - ';
function invalidTimingValue(exp) {
  return new _RuntimeError(3000, ngDevMode && `The provided timing value "${exp}" is invalid.`);
}
function negativeStepValue() {
  return new _RuntimeError(3100, ngDevMode && 'Duration values below 0 are not allowed for this animation step.');
}
function negativeDelayValue() {
  return new _RuntimeError(3101, ngDevMode && 'Delay values below 0 are not allowed for this animation step.');
}
function invalidStyleParams(varName) {
  return new _RuntimeError(3001, ngDevMode && `Unable to resolve the local animation param ${varName} in the given list of values`);
}
function invalidParamValue(varName) {
  return new _RuntimeError(3003, ngDevMode && `Please provide a value for the animation param ${varName}`);
}
function invalidNodeType(nodeType) {
  return new _RuntimeError(3004, ngDevMode && `Unable to resolve animation metadata node #${nodeType}`);
}
function invalidCssUnitValue(userProvidedProperty, value) {
  return new _RuntimeError(3005, ngDevMode && `Please provide a CSS unit value for ${userProvidedProperty}:${value}`);
}
function invalidTrigger() {
  return new _RuntimeError(3006, ngDevMode && "animation triggers cannot be prefixed with an `@` sign (e.g. trigger('@foo', [...]))");
}
function invalidDefinition() {
  return new _RuntimeError(3007, ngDevMode && 'only state() and transition() definitions can sit inside of a trigger()');
}
function invalidState(metadataName, missingSubs) {
  return new _RuntimeError(3008, ngDevMode && `state("${metadataName}", ...) must define default values for all the following style substitutions: ${missingSubs.join(', ')}`);
}
function invalidStyleValue(value) {
  return new _RuntimeError(3002, ngDevMode && `The provided style string value ${value} is not allowed.`);
}
function invalidParallelAnimation(prop, firstStart, firstEnd, secondStart, secondEnd) {
  return new _RuntimeError(3010, ngDevMode && `The CSS property "${prop}" that exists between the times of "${firstStart}ms" and "${firstEnd}ms" is also being animated in a parallel animation between the times of "${secondStart}ms" and "${secondEnd}ms"`);
}
function invalidKeyframes() {
  return new _RuntimeError(3011, ngDevMode && `keyframes() must be placed inside of a call to animate()`);
}
function invalidOffset() {
  return new _RuntimeError(3012, ngDevMode && `Please ensure that all keyframe offsets are between 0 and 1`);
}
function keyframeOffsetsOutOfOrder() {
  return new _RuntimeError(3200, ngDevMode && `Please ensure that all keyframe offsets are in order`);
}
function keyframesMissingOffsets() {
  return new _RuntimeError(3202, ngDevMode && `Not all style() steps within the declared keyframes() contain offsets`);
}
function invalidStagger() {
  return new _RuntimeError(3013, ngDevMode && `stagger() can only be used inside of query()`);
}
function invalidQuery(selector) {
  return new _RuntimeError(3014, ngDevMode && `\`query("${selector}")\` returned zero elements. (Use \`query("${selector}", { optional: true })\` if you wish to allow this.)`);
}
function invalidExpression(expr) {
  return new _RuntimeError(3015, ngDevMode && `The provided transition expression "${expr}" is not supported`);
}
function invalidTransitionAlias(alias) {
  return new _RuntimeError(3016, ngDevMode && `The transition alias value "${alias}" is not supported`);
}
function validationFailed(errors) {
  return new _RuntimeError(3500, ngDevMode && `animation validation failed:\n${errors.map(err => err.message).join('\n')}`);
}
function buildingFailed(errors) {
  return new _RuntimeError(3501, ngDevMode && `animation building failed:\n${errors.map(err => err.message).join('\n')}`);
}
function triggerBuildFailed(name, errors) {
  return new _RuntimeError(3404, ngDevMode && `The animation trigger "${name}" has failed to build due to the following errors:\n - ${errors.map(err => err.message).join('\n - ')}`);
}
function animationFailed(errors) {
  return new _RuntimeError(3502, ngDevMode && `Unable to animate due to the following errors:${LINE_START}${errors.map(err => err.message).join(LINE_START)}`);
}
function registerFailed(errors) {
  return new _RuntimeError(3503, ngDevMode && `Unable to build the animation due to the following errors: ${errors.map(err => err.message).join('\n')}`);
}
function missingOrDestroyedAnimation() {
  return new _RuntimeError(3300, ngDevMode && "The requested animation doesn't exist or has already been destroyed");
}
function createAnimationFailed(errors) {
  return new _RuntimeError(3504, ngDevMode && `Unable to create the animation due to the following errors:${errors.map(err => err.message).join('\n')}`);
}
function missingPlayer(id) {
  return new _RuntimeError(3301, ngDevMode && `Unable to find the timeline player referenced by ${id}`);
}
function missingTrigger(phase, name) {
  return new _RuntimeError(3302, ngDevMode && `Unable to listen on the animation trigger event "${phase}" because the animation trigger "${name}" doesn\'t exist!`);
}
function missingEvent(name) {
  return new _RuntimeError(3303, ngDevMode && `Unable to listen on the animation trigger "${name}" because the provided event is undefined!`);
}
function unsupportedTriggerEvent(phase, name) {
  return new _RuntimeError(3400, ngDevMode && `The provided animation trigger event "${phase}" for the animation trigger "${name}" is not supported!`);
}
function unregisteredTrigger(name) {
  return new _RuntimeError(3401, ngDevMode && `The provided animation trigger "${name}" has not been registered!`);
}
function triggerTransitionsFailed(errors) {
  return new _RuntimeError(3402, ngDevMode && `Unable to process animations due to the following failed trigger transitions\n ${errors.map(err => err.message).join('\n')}`);
}
function transitionFailed(name, errors) {
  return new _RuntimeError(3505, ngDevMode && `@${name} has failed due to:\n ${errors.map(err => err.message).join('\n- ')}`);
}

const ANIMATABLE_PROP_SET = new Set(['-moz-outline-radius', '-moz-outline-radius-bottomleft', '-moz-outline-radius-bottomright', '-moz-outline-radius-topleft', '-moz-outline-radius-topright', '-ms-grid-columns', '-ms-grid-rows', '-webkit-line-clamp', '-webkit-text-fill-color', '-webkit-text-stroke', '-webkit-text-stroke-color', 'accent-color', 'all', 'backdrop-filter', 'background', 'background-color', 'background-position', 'background-size', 'block-size', 'border', 'border-block-end', 'border-block-end-color', 'border-block-end-width', 'border-block-start', 'border-block-start-color', 'border-block-start-width', 'border-bottom', 'border-bottom-color', 'border-bottom-left-radius', 'border-bottom-right-radius', 'border-bottom-width', 'border-color', 'border-end-end-radius', 'border-end-start-radius', 'border-image-outset', 'border-image-slice', 'border-image-width', 'border-inline-end', 'border-inline-end-color', 'border-inline-end-width', 'border-inline-start', 'border-inline-start-color', 'border-inline-start-width', 'border-left', 'border-left-color', 'border-left-width', 'border-radius', 'border-right', 'border-right-color', 'border-right-width', 'border-start-end-radius', 'border-start-start-radius', 'border-top', 'border-top-color', 'border-top-left-radius', 'border-top-right-radius', 'border-top-width', 'border-width', 'bottom', 'box-shadow', 'caret-color', 'clip', 'clip-path', 'color', 'column-count', 'column-gap', 'column-rule', 'column-rule-color', 'column-rule-width', 'column-width', 'columns', 'filter', 'flex', 'flex-basis', 'flex-grow', 'flex-shrink', 'font', 'font-size', 'font-size-adjust', 'font-stretch', 'font-variation-settings', 'font-weight', 'gap', 'grid-column-gap', 'grid-gap', 'grid-row-gap', 'grid-template-columns', 'grid-template-rows', 'height', 'inline-size', 'input-security', 'inset', 'inset-block', 'inset-block-end', 'inset-block-start', 'inset-inline', 'inset-inline-end', 'inset-inline-start', 'left', 'letter-spacing', 'line-clamp', 'line-height', 'margin', 'margin-block-end', 'margin-block-start', 'margin-bottom', 'margin-inline-end', 'margin-inline-start', 'margin-left', 'margin-right', 'margin-top', 'mask', 'mask-border', 'mask-position', 'mask-size', 'max-block-size', 'max-height', 'max-inline-size', 'max-lines', 'max-width', 'min-block-size', 'min-height', 'min-inline-size', 'min-width', 'object-position', 'offset', 'offset-anchor', 'offset-distance', 'offset-path', 'offset-position', 'offset-rotate', 'opacity', 'order', 'outline', 'outline-color', 'outline-offset', 'outline-width', 'padding', 'padding-block-end', 'padding-block-start', 'padding-bottom', 'padding-inline-end', 'padding-inline-start', 'padding-left', 'padding-right', 'padding-top', 'perspective', 'perspective-origin', 'right', 'rotate', 'row-gap', 'scale', 'scroll-margin', 'scroll-margin-block', 'scroll-margin-block-end', 'scroll-margin-block-start', 'scroll-margin-bottom', 'scroll-margin-inline', 'scroll-margin-inline-end', 'scroll-margin-inline-start', 'scroll-margin-left', 'scroll-margin-right', 'scroll-margin-top', 'scroll-padding', 'scroll-padding-block', 'scroll-padding-block-end', 'scroll-padding-block-start', 'scroll-padding-bottom', 'scroll-padding-inline', 'scroll-padding-inline-end', 'scroll-padding-inline-start', 'scroll-padding-left', 'scroll-padding-right', 'scroll-padding-top', 'scroll-snap-coordinate', 'scroll-snap-destination', 'scrollbar-color', 'shape-image-threshold', 'shape-margin', 'shape-outside', 'tab-size', 'text-decoration', 'text-decoration-color', 'text-decoration-thickness', 'text-emphasis', 'text-emphasis-color', 'text-indent', 'text-shadow', 'text-underline-offset', 'top', 'transform', 'transform-origin', 'translate', 'vertical-align', 'visibility', 'width', 'word-spacing', 'z-index', 'zoom']);

function optimizeGroupPlayer(players) {
  switch (players.length) {
    case 0:
      return new NoopAnimationPlayer();
    case 1:
      return players[0];
    default:
      return new AnimationGroupPlayer(players);
  }
}
function normalizeKeyframes$1(normalizer, keyframes, preStyles = new Map(), postStyles = new Map()) {
  const errors = [];
  const normalizedKeyframes = [];
  let previousOffset = -1;
  let previousKeyframe = null;
  keyframes.forEach(kf => {
    const offset = kf.get('offset');
    const isSameOffset = offset == previousOffset;
    const normalizedKeyframe = isSameOffset && previousKeyframe || new Map();
    kf.forEach((val, prop) => {
      let normalizedProp = prop;
      let normalizedValue = val;
      if (prop !== 'offset') {
        normalizedProp = normalizer.normalizePropertyName(normalizedProp, errors);
        switch (normalizedValue) {
          case _PRE_STYLE:
            normalizedValue = preStyles.get(prop);
            break;
          case AUTO_STYLE:
            normalizedValue = postStyles.get(prop);
            break;
          default:
            normalizedValue = normalizer.normalizeStyleValue(prop, normalizedProp, normalizedValue, errors);
            break;
        }
      }
      normalizedKeyframe.set(normalizedProp, normalizedValue);
    });
    if (!isSameOffset) {
      normalizedKeyframes.push(normalizedKeyframe);
    }
    previousKeyframe = normalizedKeyframe;
    previousOffset = offset;
  });
  if (errors.length) {
    throw animationFailed(errors);
  }
  return normalizedKeyframes;
}
function listenOnPlayer(player, eventName, event, callback) {
  switch (eventName) {
    case 'start':
      player.onStart(() => callback(event && copyAnimationEvent(event, 'start', player)));
      break;
    case 'done':
      player.onDone(() => callback(event && copyAnimationEvent(event, 'done', player)));
      break;
    case 'destroy':
      player.onDestroy(() => callback(event && copyAnimationEvent(event, 'destroy', player)));
      break;
  }
}
function copyAnimationEvent(e, phaseName, player) {
  const totalTime = player.totalTime;
  const disabled = player.disabled ? true : false;
  const event = makeAnimationEvent(e.element, e.triggerName, e.fromState, e.toState, phaseName || e.phaseName, totalTime == undefined ? e.totalTime : totalTime, disabled);
  const data = e['_data'];
  if (data != null) {
    event['_data'] = data;
  }
  return event;
}
function makeAnimationEvent(element, triggerName, fromState, toState, phaseName = '', totalTime = 0, disabled) {
  return {
    element,
    triggerName,
    fromState,
    toState,
    phaseName,
    totalTime,
    disabled: !!disabled
  };
}
function getOrSetDefaultValue(map, key, defaultValue) {
  let value = map.get(key);
  if (!value) {
    map.set(key, value = defaultValue);
  }
  return value;
}
function parseTimelineCommand(command) {
  const separatorPos = command.indexOf(':');
  const id = command.substring(1, separatorPos);
  const action = command.slice(separatorPos + 1);
  return [id, action];
}
const documentElement = /* @__PURE__ */(() => typeof document === 'undefined' ? null : document.documentElement)();
function getParentElement(element) {
  const parent = element.parentNode || element.host || null;
  if (parent === documentElement) {
    return null;
  }
  return parent;
}
function containsVendorPrefix(prop) {
  return prop.substring(1, 6) == 'ebkit';
}
let _CACHED_BODY = null;
let _IS_WEBKIT = false;
function validateStyleProperty(prop) {
  if (!_CACHED_BODY) {
    _CACHED_BODY = getBodyNode() || {};
    _IS_WEBKIT = _CACHED_BODY.style ? 'WebkitAppearance' in _CACHED_BODY.style : false;
  }
  let result = true;
  if (_CACHED_BODY.style && !containsVendorPrefix(prop)) {
    result = prop in _CACHED_BODY.style;
    if (!result && _IS_WEBKIT) {
      const camelProp = 'Webkit' + prop.charAt(0).toUpperCase() + prop.slice(1);
      result = camelProp in _CACHED_BODY.style;
    }
  }
  return result;
}
function validateWebAnimatableStyleProperty(prop) {
  return ANIMATABLE_PROP_SET.has(prop);
}
function getBodyNode() {
  if (typeof document != 'undefined') {
    return document.body;
  }
  return null;
}
function containsElement(elm1, elm2) {
  while (elm2) {
    if (elm2 === elm1) {
      return true;
    }
    elm2 = getParentElement(elm2);
  }
  return false;
}
function invokeQuery(element, selector, multi) {
  if (multi) {
    return Array.from(element.querySelectorAll(selector));
  }
  const elem = element.querySelector(selector);
  return elem ? [elem] : [];
}

const ONE_SECOND = 1000;
const SUBSTITUTION_EXPR_START = '{{';
const SUBSTITUTION_EXPR_END = '}}';
const ENTER_CLASSNAME = 'ng-enter';
const LEAVE_CLASSNAME = 'ng-leave';
const NG_TRIGGER_CLASSNAME = 'ng-trigger';
const NG_TRIGGER_SELECTOR = '.ng-trigger';
const NG_ANIMATING_CLASSNAME = 'ng-animating';
const NG_ANIMATING_SELECTOR = '.ng-animating';
function resolveTimingValue(value) {
  if (typeof value == 'number') return value;
  const matches = value.match(/^(-?[\.\d]+)(m?s)/);
  if (!matches || matches.length < 2) return 0;
  return _convertTimeValueToMS(parseFloat(matches[1]), matches[2]);
}
function _convertTimeValueToMS(value, unit) {
  switch (unit) {
    case 's':
      return value * ONE_SECOND;
    default:
      return value;
  }
}
function resolveTiming(timings, errors, allowNegativeValues) {
  return timings.hasOwnProperty('duration') ? timings : parseTimeExpression(timings, errors, allowNegativeValues);
}
const PARSE_TIME_EXPRESSION_REGEX = /^(-?[\.\d]+)(m?s)(?:\s+(-?[\.\d]+)(m?s))?(?:\s+([-a-z]+(?:\(.+?\))?))?$/i;
function parseTimeExpression(exp, errors, allowNegativeValues) {
  let duration;
  let delay = 0;
  let easing = '';
  if (typeof exp === 'string') {
    const matches = exp.match(PARSE_TIME_EXPRESSION_REGEX);
    if (matches === null) {
      errors.push(invalidTimingValue(exp));
      return {
        duration: 0,
        delay: 0,
        easing: ''
      };
    }
    duration = _convertTimeValueToMS(parseFloat(matches[1]), matches[2]);
    const delayMatch = matches[3];
    if (delayMatch != null) {
      delay = _convertTimeValueToMS(parseFloat(delayMatch), matches[4]);
    }
    const easingVal = matches[5];
    if (easingVal) {
      easing = easingVal;
    }
  } else {
    duration = exp;
  }
  if (!allowNegativeValues) {
    let containsErrors = false;
    let startIndex = errors.length;
    if (duration < 0) {
      errors.push(negativeStepValue());
      containsErrors = true;
    }
    if (delay < 0) {
      errors.push(negativeDelayValue());
      containsErrors = true;
    }
    if (containsErrors) {
      errors.splice(startIndex, 0, invalidTimingValue(exp));
    }
  }
  return {
    duration,
    delay,
    easing
  };
}
function normalizeKeyframes(keyframes) {
  if (!keyframes.length) {
    return [];
  }
  if (keyframes[0] instanceof Map) {
    return keyframes;
  }
  return keyframes.map(kf => new Map(Object.entries(kf)));
}
function normalizeStyles(styles) {
  return Array.isArray(styles) ? new Map(...styles) : new Map(styles);
}
function setStyles(element, styles, formerStyles) {
  styles.forEach((val, prop) => {
    const camelProp = dashCaseToCamelCase(prop);
    if (formerStyles && !formerStyles.has(prop)) {
      formerStyles.set(prop, element.style[camelProp]);
    }
    element.style[camelProp] = val;
  });
}
function eraseStyles(element, styles) {
  styles.forEach((_, prop) => {
    const camelProp = dashCaseToCamelCase(prop);
    element.style[camelProp] = '';
  });
}
function normalizeAnimationEntry(steps) {
  if (Array.isArray(steps)) {
    if (steps.length == 1) return steps[0];
    return sequence(steps);
  }
  return steps;
}
function validateStyleParams(value, options, errors) {
  const params = options.params || {};
  const matches = extractStyleParams(value);
  if (matches.length) {
    matches.forEach(varName => {
      if (!params.hasOwnProperty(varName)) {
        errors.push(invalidStyleParams(varName));
      }
    });
  }
}
const PARAM_REGEX = /* @__PURE__ */new RegExp(`${SUBSTITUTION_EXPR_START}\\s*(.+?)\\s*${SUBSTITUTION_EXPR_END}`, 'g');
function extractStyleParams(value) {
  let params = [];
  if (typeof value === 'string') {
    let match;
    while (match = PARAM_REGEX.exec(value)) {
      params.push(match[1]);
    }
    PARAM_REGEX.lastIndex = 0;
  }
  return params;
}
function interpolateParams(value, params, errors) {
  const original = `${value}`;
  const str = original.replace(PARAM_REGEX, (_, varName) => {
    let localVal = params[varName];
    if (localVal == null) {
      errors.push(invalidParamValue(varName));
      localVal = '';
    }
    return localVal.toString();
  });
  return str == original ? value : str;
}
const DASH_CASE_REGEXP = /-+([a-z0-9])/g;
function dashCaseToCamelCase(input) {
  return input.replace(DASH_CASE_REGEXP, (...m) => m[1].toUpperCase());
}
function camelCaseToDashCase(input) {
  return input.replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase();
}
function allowPreviousPlayerStylesMerge(duration, delay) {
  return duration === 0 || delay === 0;
}
function balancePreviousStylesIntoKeyframes(element, keyframes, previousStyles) {
  if (previousStyles.size && keyframes.length) {
    let startingKeyframe = keyframes[0];
    let missingStyleProps = [];
    previousStyles.forEach((val, prop) => {
      if (!startingKeyframe.has(prop)) {
        missingStyleProps.push(prop);
      }
      startingKeyframe.set(prop, val);
    });
    if (missingStyleProps.length) {
      for (let i = 1; i < keyframes.length; i++) {
        let kf = keyframes[i];
        missingStyleProps.forEach(prop => kf.set(prop, computeStyle(element, prop)));
      }
    }
  }
  return keyframes;
}
function visitDslNode(visitor, node, context) {
  switch (node.type) {
    case AnimationMetadataType.Trigger:
      return visitor.visitTrigger(node, context);
    case AnimationMetadataType.State:
      return visitor.visitState(node, context);
    case AnimationMetadataType.Transition:
      return visitor.visitTransition(node, context);
    case AnimationMetadataType.Sequence:
      return visitor.visitSequence(node, context);
    case AnimationMetadataType.Group:
      return visitor.visitGroup(node, context);
    case AnimationMetadataType.Animate:
      return visitor.visitAnimate(node, context);
    case AnimationMetadataType.Keyframes:
      return visitor.visitKeyframes(node, context);
    case AnimationMetadataType.Style:
      return visitor.visitStyle(node, context);
    case AnimationMetadataType.Reference:
      return visitor.visitReference(node, context);
    case AnimationMetadataType.AnimateChild:
      return visitor.visitAnimateChild(node, context);
    case AnimationMetadataType.AnimateRef:
      return visitor.visitAnimateRef(node, context);
    case AnimationMetadataType.Query:
      return visitor.visitQuery(node, context);
    case AnimationMetadataType.Stagger:
      return visitor.visitStagger(node, context);
    default:
      throw invalidNodeType(node.type);
  }
}
function computeStyle(element, prop) {
  return window.getComputedStyle(element)[prop];
}

export { ENTER_CLASSNAME, LEAVE_CLASSNAME, NG_ANIMATING_CLASSNAME, NG_ANIMATING_SELECTOR, NG_TRIGGER_CLASSNAME, NG_TRIGGER_SELECTOR, SUBSTITUTION_EXPR_START, allowPreviousPlayerStylesMerge, balancePreviousStylesIntoKeyframes, buildingFailed, camelCaseToDashCase, computeStyle, containsElement, createAnimationFailed, dashCaseToCamelCase, eraseStyles, extractStyleParams, getOrSetDefaultValue, getParentElement, interpolateParams, invalidCssUnitValue, invalidDefinition, invalidExpression, invalidKeyframes, invalidOffset, invalidParallelAnimation, invalidQuery, invalidStagger, invalidState, invalidStyleValue, invalidTransitionAlias, invalidTrigger, invokeQuery, keyframeOffsetsOutOfOrder, keyframesMissingOffsets, listenOnPlayer, makeAnimationEvent, missingEvent, missingOrDestroyedAnimation, missingPlayer, missingTrigger, normalizeAnimationEntry, normalizeKeyframes$1 as normalizeKeyframes, normalizeKeyframes as normalizeKeyframes$1, normalizeStyles, optimizeGroupPlayer, parseTimelineCommand, registerFailed, resolveTiming, resolveTimingValue, setStyles, transitionFailed, triggerBuildFailed, triggerTransitionsFailed, unregisteredTrigger, unsupportedTriggerEvent, validateStyleParams, validateStyleProperty, validateWebAnimatableStyleProperty, validationFailed, visitDslNode };
//# sourceMappingURL=_util-chunk.mjs.map
