(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
typeof define === 'function' && define.amd ? define(factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.urlcat = factory());
})(this, (function () { 'use strict';
const nullOrUndefined = v => v === undefined || v === null;
const removeNullOrUndef = params => Object.entries(params).reduce((r###lt, [key, value]) => {
if (nullOrUndefined(value)) return r###lt;
r###lt[key] = value;
return r###lt
}, {});
/**
* Creates a query string from the specified object.
*
* @param {Object} params an object to convert into a query string.
* @param {Object} config configuration to stringify the query params.
*
* @returns {String} Query string.
*
* @example
* ```ts
* query({ id: 42, search: 'foo' })
* // -> 'id=42&search=foo'
* ```
*/
const query = (params, config) => {
/* NOTE: Handle quirk of `new UrlSearchParams(params).toString()` in Webkit 602.x.xx
*       versions which returns stringified object when params is empty object
*/
if (Object.keys(params).length < 1) return '';
return new URLSearchParams(params).toString();
};
/**
* Joins two strings using a separator.
* If the separator occurs at the concatenation boundary in either of the strings, it is removed.
* This prevents accidental duplication of the separator.
*
* @param {String} part1 First string.
* @param {String} separator Separator used for joining.
* @param {String} part2 Second string.
*
* @returns {String} Joined string.
*
* @example
* ```ts
* join('first/', '/', '/second')
* // -> 'first/second'
* ```
*/
const join = (part1, separator, part2)  =>{
const p1 = part1.endsWith(separator)
? part1.slice(0, -separator.length)
: part1;
const p2 = part2.startsWith(separator)
? part2.slice(separator.length)
: part2;
return p1 === '' || p2 === ''
? p1 + p2
: p1 + separator + p2;
};
const validatePathParam = (params, key) => {
const allowedTypes = ['boolean', 'string', 'number'];
if (!Object.prototype.hasOwnProperty.call(params, key)) throw new Error(`Missing value for path parameter ${key}.`);
if (!allowedTypes.includes(typeof params[key])) throw new TypeError(`Path parameter ${key} cannot be of type ${typeof params[key]}. Allowed types are: ${allowedTypes.join(', ')}.`);
if (typeof params[key] === 'string' && params[key].trim() === '') throw new Error(`Path parameter ${key} cannot be an empty string.`);
};
const path = (template, params) => {
const remainingParams = { ...params };
const renderedPath = template.replace(/:[_A-Za-z]+[_A-Za-z0-9]*/g, p => {
const key = p.slice(1);
validatePathParam(params, key);
delete remainingParams[key];
return encodeURIComponent(params[key]);
});
return { renderedPath, remainingParams };
};
const joinFullUrl = (renderedPath, baseUrl, pathAndQuery) => renderedPath.length ? join(baseUrl, '/', pathAndQuery) : join(baseUrl, '?', pathAndQuery);
const urlcatImpl = (pathTemplate, params, baseUrl, config) => {
const { renderedPath, remainingParams } = path(pathTemplate, params);
const cleanParams = removeNullOrUndef(remainingParams);
const renderedQuery = query(cleanParams);
const pathAndQuery = join(renderedPath, '?', renderedQuery);
return baseUrl ? joinFullUrl(renderedPath, baseUrl, pathAndQuery) : pathAndQuery;
};
const urlcat = (baseUrlOrTemplate, pathTemplateOrParams, maybeParams = {}, config = {}) => {
if (typeof pathTemplateOrParams === 'string') {
const baseUrl = baseUrlOrTemplate;
const pathTemplate = pathTemplateOrParams;
const params = maybeParams;
return urlcatImpl(pathTemplate, params, baseUrl);
}
else {
const baseTemplate = baseUrlOrTemplate;
const params = pathTemplateOrParams;
return urlcatImpl(baseTemplate, params, undefined);
}
};
return urlcat;
}));