import { get } from '../objects/get';

/**
 * render template like js template string
 *
 * @example
 * renderTemplate('My name is ${name}',{name:'wener'})
 * // 'My name is wener'
 *
 * @param match `js` for `${name}`, common for `{{name}}`
 */
export function renderTemplate(
	template: string,
	data: ((v: string) => any) | object | undefined,
	match: 'js' | 'common' | RegExp = 'js',
) {
	let getter: Function;
	if (!data) {
		// todo warning in dev
		getter = () => '';
	} else if (typeof data === 'function') {
		getter = data;
	} else {
		getter = (v: string) => get(data, v);
	}
	if (typeof match === 'string') {
		match = Matches[match] || Matches.js;
	}
	return template.replace(match, (_, g) => {
		return getter(g.trim());
	});
}

const Matches: Record<string, RegExp> = { js: /\${(.*?)}/g, common: /{{(.*?)}}/g };