@ketch-sdk/ketch-data-layer/dist/window/fetcher.js

Ketch Data Layer interface

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const tslib_1 = require("tslib");
function windowFetcher(w, name) {
    return tslib_1.__awaiter(this, void 0, void 0, function* () {
        if (!w || name.length === 0) {
            return [];
        }
        try {
            const pv = getProperty(w, name);
            if (!pv || pv === '0') {
                return [];
            }
            return [pv];
        }
        catch (e) {
            return [];
        }
    });
}
exports.default = windowFetcher;
function getProperty(w, p) {
    const parts = p.split('.');
    let context = w;
    let previousContext = null;
    while (parts.length > 0) {
        if (parts[0] === 'window') {
            parts.shift();
        }
        else if (typeof context === 'object') {
            if (parts[0].slice(-2) === '()') {
                previousContext = context;
                context = context[parts[0].slice(0, -2)];
            }
            else {
                previousContext = context;
                context = context[parts.shift()];
            }
        }
        else if (typeof context === 'function') {
            const newContext = context.call(previousContext);
            previousContext = context;
            context = newContext;
            parts.shift();
        }
        else {
            return null;
        }
    }
    if (context && typeof context !== 'string') {
        context = context.toString();
        if (context.startsWith('[object')) {
            return '';
        }
    }
    return context;
}
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