source: trip-planner-front/node_modules/less/lib/less-browser/cache.js@ e29cc2e

"use strict";
// Cache system is a bit outdated and could do with work
Object.defineProperty(exports, "__esModule", { value: true });
exports.default = (function (window, options, logger) {
    var cache = null;
    if (options.env !== 'development') {
        try {
            cache = (typeof window.localStorage === 'undefined') ? null : window.localStorage;
        }
        catch (_) { }
    }
    return {
        setCSS: function (path, lastModified, modifyVars, styles) {
            if (cache) {
                logger.info("saving " + path + " to cache.");
                try {
                    cache.setItem(path, styles);
                    cache.setItem(path + ":timestamp", lastModified);
                    if (modifyVars) {
                        cache.setItem(path + ":vars", JSON.stringify(modifyVars));
                    }
                }
                catch (e) {
                    // TODO - could do with adding more robust error handling
                    logger.error("failed to save \"" + path + "\" to local storage for caching.");
                }
            }
        },
        getCSS: function (path, webInfo, modifyVars) {
            var css = cache && cache.getItem(path);
            var timestamp = cache && cache.getItem(path + ":timestamp");
            var vars = cache && cache.getItem(path + ":vars");
            modifyVars = modifyVars || {};
            vars = vars || "{}"; // if not set, treat as the JSON representation of an empty object
            if (timestamp && webInfo.lastModified &&
                (new Date(webInfo.lastModified).valueOf() ===
                    new Date(timestamp).valueOf()) &&
                JSON.stringify(modifyVars) === vars) {
                // Use local copy
                return css;
            }
        }
    };
});
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