import Handlebars from "handlebars";

const createDocumentTemplateHandlebars = () => {
    const instance = Handlebars.create();

    instance.registerHelper("eq", (left, right) => left === right);
    instance.registerHelper("ne", (left, right) => left !== right);
    instance.registerHelper("gt", (left, right) => left > right);
    instance.registerHelper("gte", (left, right) => left >= right);
    instance.registerHelper("lt", (left, right) => left < right);
    instance.registerHelper("lte", (left, right) => left <= right);
    instance.registerHelper("and", (...args) => args.slice(0, -1).every(Boolean));
    instance.registerHelper("or", (...args) => args.slice(0, -1).some(Boolean));
    instance.registerHelper("not", (value) => !value);
    instance.registerHelper("includes", (collection, value) => {
        if (Array.isArray(collection) || typeof collection === "string") {
            return collection.includes(value);
        }

        return false;
    });

    return instance;
};

export const documentTemplateHandlebars = createDocumentTemplateHandlebars();