universal-router/cjs/generate-urls.js

Isomorphic router for JavaScript web applications

"use strict";
/**
 * Universal Router (https://www.kriasoft.com/universal-router/)
 *
 * Copyright (c) 2015-present Kriasoft.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE.txt file in the root directory of this source tree.
 */
var __assign = (this && this.__assign) || function () {
    __assign = Object.assign || function(t) {
        for (var s, i = 1, n = arguments.length; i < n; i++) {
            s = arguments[i];
            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
                t[p] = s[p];
        }
        return t;
    };
    return __assign.apply(this, arguments);
};
Object.defineProperty(exports, "__esModule", { value: true });
var path_to_regexp_js_1 = require("./path-to-regexp.js");
function cacheRoutes(routesByName, route, routes, name, sep) {
    if (route.name && name && routesByName.has(name)) {
        throw new Error("Route \"".concat(name, "\" already exists"));
    }
    if (route.name && name) {
        routesByName.set(name, route);
    }
    if (routes) {
        for (var i = 0; i < routes.length; i++) {
            var childRoute = routes[i];
            var childName = childRoute.name;
            childRoute.parent = route;
            cacheRoutes(routesByName, childRoute, childRoute.children, name && sep ? (childName ? name + sep + childName : name) : childName, sep);
        }
    }
}
/**
 * Create a function to generate urls by route names.
 */
function generateUrls(router, options) {
    if (!router) {
        throw new ReferenceError('Router is not defined');
    }
    var routesByName = new Map();
    var regexpByRoute = new Map();
    var opts = __assign({ encode: encodeURIComponent }, options);
    return function (routeName, params) {
        var route = routesByName.get(routeName);
        if (!route) {
            routesByName.clear();
            regexpByRoute.clear();
            cacheRoutes(routesByName, router.root, router.root.children, router.root.name, opts.uniqueRouteNameSep);
            route = routesByName.get(routeName);
            if (!route) {
                throw new Error("Route \"".concat(routeName, "\" not found"));
            }
        }
        var regexp = regexpByRoute.get(route);
        if (!regexp) {
            var fullPath = '';
            var rt = route;
            while (rt) {
                var path = Array.isArray(rt.path) ? rt.path[0] : rt.path;
                if (path) {
                    fullPath =
                        (path instanceof path_to_regexp_js_1.TokenData ? (0, path_to_regexp_js_1.stringify)(path) : path) + fullPath;
                }
                rt = rt.parent;
            }
            var tokens = (0, path_to_regexp_js_1.parse)(fullPath, opts);
            var toPath = (0, path_to_regexp_js_1.compile)(fullPath, opts);
            var keys = Object.create(null);
            for (var i = 0; i < tokens.tokens.length; i++) {
                var token = tokens.tokens[i];
                if (token && token.type !== 'text') {
                    if (token.type === 'group') {
                        keys[String(i)] = true;
                    }
                    else {
                        keys[token.name] = true;
                    }
                }
            }
            regexp = { toPath: toPath, keys: keys };
            regexpByRoute.set(route, regexp);
        }
        var url = router.baseUrl + regexp.toPath(params) || '/';
        if (opts.stringifyQueryParams && params) {
            var queryParams = {};
            var keys = Object.keys(params);
            for (var i = 0; i < keys.length; i++) {
                var key = keys[i];
                if (key && !regexp.keys[key] && params[key] != null) {
                    queryParams[key] = params[key];
                }
            }
            var query = opts.stringifyQueryParams(queryParams);
            if (query) {
                url += query.charAt(0) === '?' ? query : "?".concat(query);
            }
        }
        return url;
    };
}
exports.default = generateUrls;