dist/handlebar/loadCustomHandlebars.js

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const handlebars_1 = __importDefault(require("handlebars"));
const fs_1 = __importDefault(require("fs"));
const logger_1 = __importDefault(require("../logger"));
const path_1 = __importDefault(require("path"));
const existingHandlebars = ["now", "randomValue", "capture", "num_between", "file", "code", "inject"];
/**
 * - If file exists read file and parse it to a JSONObject of type CustomHandleBar
 * - For each custom handlebar, check if the name equals any of the inbuilt handlebars
 * - If not, register helpers by their name and executing the IIFE code provided under logic
 * - Create request and logger objects under the scope of each custom handlebar
 * @param {string} extHelpers location of the external handlebars json file
 */
const registerCustomHandlebars = (extHelpers) => {
    if (fs_1.default.existsSync(path_1.default.resolve(extHelpers))) {
        logger_1.default.info(`Loading custom handlebar helpers from ${extHelpers}`);
        const customHandleBarDefinition = fs_1.default.readFileSync(path_1.default.resolve(extHelpers)).toString();
        const customHandlebars = JSON.parse(customHandleBarDefinition);
        customHandlebars.forEach((customHandlebar) => {
            if (customHandlebar.name in existingHandlebars) {
                logger_1.default.error(`Cannot override custom helper ${customHandlebar.name}`);
            }
            else {
                logger_1.default.info(`Registering custom handlebars: ${customHandlebar.name}`);
                handlebars_1.default.registerHelper(customHandlebar.name, (context) => {
                    /* eslint-disable no-unused-vars */
                    const request = context.data.root.request;
                    const logger = context.data.root.logger;
                    /* eslint-disable no-unused-vars */
                    const result = eval(customHandlebar.logic);
                    return result;
                });
            }
        });
    }
    else {
        logger_1.default.error(`Loading custom handlebar helpers from ${extHelpers} failed. File not found.`);
    }
};
exports.default = registerCustomHandlebars;
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