"use strict";
Object.defineProperty(exports, "__esModule", {
    value: true
});
Object.defineProperty(exports, "default", {
    enumerable: true,
    get: function() {
        return 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.: `cubic-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;
    });
}