ngx-lottie/esm2015/server/internals.js

<h1 align="center"> <img src="https://raw.githubusercontent.com/ngx-lottie/ngx-lottie/master/docs/assets/lottie.gif"> </h1>

import { join } from 'path';
import { makeStateKey } from '@angular/platform-browser';
import { transformAnimationFilenameToKey } from 'ngx-lottie';
import { readFileWithAnimationData } from './utils';
function readAndTransferAnimationData(transferState, animations, pathsToAnimations) {
    const sources = [];
    for (let i = 0, length = animations.length; i < length; i++) {
        const path = pathsToAnimations[i];
        const source = readFileWithAnimationData(path).then(animationData => {
            transferAnimationData(transferState, animations[i], animationData);
        });
        sources.push(source);
    }
    return sources;
}
function transferAnimationData(state, animation, animationData) {
    animation = transformAnimationFilenameToKey(animation);
    const key = makeStateKey(animation);
    state.set(key, JSON.parse(animationData));
}
export function appInitializerFactory(options, state) {
    const pathsToAnimations = resolveLottiePaths(options);
    const sources = readAndTransferAnimationData(state, options.preloadAnimations.animations, pathsToAnimations);
    return () => Promise.all(sources);
}
export function resolveLottiePaths({ preloadAnimations }) {
    const { folder, animations } = preloadAnimations;
    const path = join(process.cwd(), folder);
    return animations.map(animation => join(path, animation));
}
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