"use strict";
Object.defineProperty(exports, "__esModule", {
    value: true
});
exports.default = parseAnimationValue;
const DIRECTIONS = new Set([
    'normal',
    'reverse',
    'alternate',
    'alternate-reverse'
]);
const PLAY_STATES = new Set([
    'running',
    'paused'
]);
const FILL_MODES = new Set([
    'none',
    'forwards',
    'backwards',
    'both'
]);
const ITERATION_COUNTS = new Set([
    'infinite'
]);
const TIMINGS = new Set([
    'linear',
    'ease',
    'ease-in',
    'ease-out',
    'ease-in-out',
    'step-start',
    'step-end', 
]);
const TIMING_FNS = [
    'cubic-bezier',
    'steps'
];
const COMMA = /\,(?![^(]*\))/g // Comma separator that is not located between brackets. E.g.: `cubiz-bezier(a, b, c)` these don't count.
;
const SPACE = /\ +(?![^(]*\))/g // Similar to the one above, but with spaces instead.
;
const TIME = /^(-?[\d.]+m?s)$/;
const DIGIT = /^(\d+)$/;
function parseAnimationValue(input) {
    let animations = input.split(COMMA);
    return animations.map((animation)=>{
        let value = animation.trim();
        let result = {
            value
        };
        let parts = value.split(SPACE);
        let seen = new Set();
        for (let part of parts){
            if (!seen.has('DIRECTIONS') && DIRECTIONS.has(part)) {
                result.direction = part;
                seen.add('DIRECTIONS');
            } else if (!seen.has('PLAY_STATES') && PLAY_STATES.has(part)) {
                result.playState = part;
                seen.add('PLAY_STATES');
            } else if (!seen.has('FILL_MODES') && FILL_MODES.has(part)) {
                result.fillMode = part;
                seen.add('FILL_MODES');
            } else if (!seen.has('ITERATION_COUNTS') && (ITERATION_COUNTS.has(part) || DIGIT.test(part))) {
                result.iterationCount = part;
                seen.add('ITERATION_COUNTS');
            } else if (!seen.has('TIMING_FUNCTION') && TIMINGS.has(part)) {
                result.timingFunction = part;
                seen.add('TIMING_FUNCTION');
            } else if (!seen.has('TIMING_FUNCTION') && TIMING_FNS.some((f)=>part.startsWith(`${f}(`)
            )) {
                result.timingFunction = part;
                seen.add('TIMING_FUNCTION');
            } else if (!seen.has('DURATION') && TIME.test(part)) {
                result.duration = part;
                seen.add('DURATION');
            } else if (!seen.has('DELAY') && TIME.test(part)) {
                result.delay = part;
                seen.add('DELAY');
            } else if (!seen.has('NAME')) {
                result.name = part;
                seen.add('NAME');
            } else {
                if (!result.unknown) result.unknown = [];
                result.unknown.push(part);
            }
        }
        return result;
    });
}