"use strict";

var _createClass = (function () { function defineProperties(target, props) { for (var key in props) { var prop = props[key]; prop.configurable = true; if (prop.value) prop.writable = true; } Object.defineProperties(target, props); } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();

var _classCallCheck = function (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } };

var assign = require("react/lib/Object.assign");
var invariant = require("react/lib/invariant");
var warning = require("react/lib/warning");
var PathUtils = require("./PathUtils");

var _currentRoute;

var Route = (function () {
  function Route(name, path, ignoreScrollBehavior, isDefault, isNotFound, onEnter, onLeave, handler) {
    _classCallCheck(this, Route);

    this.name = name;
    this.path = path;
    this.paramNames = PathUtils.extractParamNames(this.path);
    this.ignoreScrollBehavior = !!ignoreScrollBehavior;
    this.isDefault = !!isDefault;
    this.isNotFound = !!isNotFound;
    this.onEnter = onEnter;
    this.onLeave = onLeave;
    this.handler = handler;
  }

  _createClass(Route, {
    appendChild: {

      /**
       * Appends the given route to this route's child routes.
       */

      value: function appendChild(route) {
        invariant(route instanceof Route, "route.appendChild must use a valid Route");

        if (!this.childRoutes) this.childRoutes = [];

        this.childRoutes.push(route);
      }
    },
    toString: {
      value: function toString() {
        var string = "<Route";

        if (this.name) string += " name=\"" + this.name + "\"";

        string += " path=\"" + this.path + "\">";

        return string;
      }
    }
  }, {
    createRoute: {

      /**
       * Creates and returns a new route. Options may be a URL pathname string
       * with placeholders for named params or an object with any of the following
       * properties:
       *
       * - name                     The name of the route. This is used to lookup a
       *                            route relative to its parent route and should be
       *                            unique among all child routes of the same parent
       * - path                     A URL pathname string with optional placeholders
       *                            that specify the names of params to extract from
       *                            the URL when the path matches. Defaults to `/${name}`
       *                            when there is a name given, or the path of the parent
       *                            route, or /
       * - ignoreScrollBehavior     True to make this route (and all descendants) ignore
       *                            the scroll behavior of the router
       * - isDefault                True to make this route the default route among all
       *                            its siblings
       * - isNotFound               True to make this route the "not found" route among
       *                            all its siblings
       * - onEnter                  A transition hook that will be called when the
       *                            router is going to enter this route
       * - onLeave                  A transition hook that will be called when the
       *                            router is going to leave this route
       * - handler                  A React component that will be rendered when
       *                            this route is active
       * - parentRoute              The parent route to use for this route. This option
       *                            is automatically supplied when creating routes inside
       *                            the callback to another invocation of createRoute. You
       *                            only ever need to use this when declaring routes
       *                            independently of one another to manually piece together
       *                            the route hierarchy
       *
       * The callback may be used to structure your route hierarchy. Any call to
       * createRoute, createDefaultRoute, createNotFoundRoute, or createRedirect
       * inside the callback automatically uses this route as its parent.
       */

      value: function createRoute(options, callback) {
        options = options || {};

        if (typeof options === "string") options = { path: options };

        var parentRoute = _currentRoute;

        if (parentRoute) {
          warning(options.parentRoute == null || options.parentRoute === parentRoute, "You should not use parentRoute with createRoute inside another route's child callback; it is ignored");
        } else {
          parentRoute = options.parentRoute;
        }

        var name = options.name;
        var path = options.path || name;

        if (path && !(options.isDefault || options.isNotFound)) {
          if (PathUtils.isAbsolute(path)) {
            if (parentRoute) {
              invariant(path === parentRoute.path || parentRoute.paramNames.length === 0, "You cannot nest path \"%s\" inside \"%s\"; the parent requires URL parameters", path, parentRoute.path);
            }
          } else if (parentRoute) {
            // Relative paths extend their parent.
            path = PathUtils.join(parentRoute.path, path);
          } else {
            path = "/" + path;
          }
        } else {
          path = parentRoute ? parentRoute.path : "/";
        }

        if (options.isNotFound && !/\*$/.test(path)) path += "*"; // Auto-append * to the path of not found routes.

        var route = new Route(name, path, options.ignoreScrollBehavior, options.isDefault, options.isNotFound, options.onEnter, options.onLeave, options.handler);

        if (parentRoute) {
          if (route.isDefault) {
            invariant(parentRoute.defaultRoute == null, "%s may not have more than one default route", parentRoute);

            parentRoute.defaultRoute = route;
          } else if (route.isNotFound) {
            invariant(parentRoute.notFoundRoute == null, "%s may not have more than one not found route", parentRoute);

            parentRoute.notFoundRoute = route;
          }

          parentRoute.appendChild(route);
        }

        // Any routes created in the callback
        // use this route as their parent.
        if (typeof callback === "function") {
          var currentRoute = _currentRoute;
          _currentRoute = route;
          callback.call(route, route);
          _currentRoute = currentRoute;
        }

        return route;
      }
    },
    createDefaultRoute: {

      /**
       * Creates and returns a route that is rendered when its parent matches
       * the current URL.
       */

      value: function createDefaultRoute(options) {
        return Route.createRoute(assign({}, options, { isDefault: true }));
      }
    },
    createNotFoundRoute: {

      /**
       * Creates and returns a route that is rendered when its parent matches
       * the current URL but none of its siblings do.
       */

      value: function createNotFoundRoute(options) {
        return Route.createRoute(assign({}, options, { isNotFound: true }));
      }
    },
    createRedirect: {

      /**
       * Creates and returns a route that automatically redirects the transition
       * to another route. In addition to the normal options to createRoute, this
       * function accepts the following options:
       *
       * - from         An alias for the `path` option. Defaults to *
       * - to           The path/route/route name to redirect to
       * - params       The params to use in the redirect URL. Defaults
       *                to using the current params
       * - query        The query to use in the redirect URL. Defaults
       *                to using the current query
       */

      value: function createRedirect(options) {
        return Route.createRoute(assign({}, options, {
          path: options.path || options.from || "*",
          onEnter: function onEnter(transition, params, query) {
            transition.redirect(options.to, options.params || params, options.query || query);
          }
        }));
      }
    }
  });

  return Route;
})();

module.exports = Route;