/**
 * @license Angular v9.1.4
 * (c) 2010-2020 Google LLC. https://angular.io/
 * License: MIT
 */

import { Location } from '@angular/common';
import { APP_BOOTSTRAP_LISTENER } from '@angular/core';
import { Router } from '@angular/router';
import { UpgradeModule } from '@angular/upgrade/static';

/**
 * @fileoverview added by tsickle
 * Generated from: packages/router/upgrade/src/upgrade.ts
 * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
const ɵ0 = (locationSyncBootstrapListener);
/**
 * Creates an initializer that sets up `ngRoute` integration
 * along with setting up the Angular router.
 *
 * \@usageNotes
 *
 * <code-example language="typescript">
 * \@NgModule({
 *  imports: [
 *   RouterModule.forRoot(SOME_ROUTES),
 *   UpgradeModule
 * ],
 * providers: [
 *   RouterUpgradeInitializer
 * ]
 * })
 * export class AppModule {
 *   ngDoBootstrap() {}
 * }
 * </code-example>
 *
 * \@publicApi
 * @type {?}
 */
const RouterUpgradeInitializer = {
    provide: APP_BOOTSTRAP_LISTENER,
    multi: true,
    useFactory: (/** @type {?} */ (ɵ0)),
    deps: [UpgradeModule]
};
/**
 * \@internal
 * @param {?} ngUpgrade
 * @return {?}
 */
function locationSyncBootstrapListener(ngUpgrade) {
    return (/**
     * @return {?}
     */
    () => {
        setUpLocationSync(ngUpgrade);
    });
}
/**
 * Sets up a location change listener to trigger `history.pushState`.
 * Works around the problem that `onPopState` does not trigger `history.pushState`.
 * Must be called *after* calling `UpgradeModule.bootstrap`.
 *
 * @see `HashLocationStrategy` / `PathLocationStrategy`
 *
 * \@publicApi
 * @param {?} ngUpgrade The upgrade NgModule.
 * @param {?=} urlType The location strategy.
 * @return {?}
 */
function setUpLocationSync(ngUpgrade, urlType = 'path') {
    if (!ngUpgrade.$injector) {
        throw new Error(`
        RouterUpgradeInitializer can be used only after UpgradeModule.bootstrap has been called.
        Remove RouterUpgradeInitializer and call setUpLocationSync after UpgradeModule.bootstrap.
      `);
    }
    /** @type {?} */
    const router = ngUpgrade.injector.get(Router);
    /** @type {?} */
    const location = ngUpgrade.injector.get(Location);
    ngUpgrade.$injector.get('$rootScope')
        .$on('$locationChangeStart', (/**
     * @param {?} _
     * @param {?} next
     * @param {?} __
     * @return {?}
     */
    (_, next, __) => {
        /** @type {?} */
        let url;
        if (urlType === 'path') {
            url = resolveUrl(next);
        }
        else if (urlType === 'hash') {
            // Remove the first hash from the URL
            /** @type {?} */
            const hashIdx = next.indexOf('#');
            url = resolveUrl(next.substring(0, hashIdx) + next.substring(hashIdx + 1));
        }
        else {
            throw 'Invalid URLType passed to setUpLocationSync: ' + urlType;
        }
        /** @type {?} */
        const path = location.normalize(url.pathname);
        router.navigateByUrl(path + url.search + url.hash);
    }));
}
/**
 * Normalizes and parses a URL.
 *
 * - Normalizing means that a relative URL will be resolved into an absolute URL in the context of
 *   the application document.
 * - Parsing means that the anchor's `protocol`, `hostname`, `port`, `pathname` and related
 *   properties are all populated to reflect the normalized URL.
 *
 * While this approach has wide compatibility, it doesn't work as expected on IE. On IE, normalizing
 * happens similar to other browsers, but the parsed components will not be set. (E.g. if you assign
 * `a.href = 'foo'`, then `a.protocol`, `a.host`, etc. will not be correctly updated.)
 * We work around that by performing the parsing in a 2nd step by taking a previously normalized URL
 * and assigning it again. This correctly populates all properties.
 *
 * See
 * https://github.com/angular/angular.js/blob/2c7400e7d07b0f6cec1817dab40b9250ce8ebce6/src/ng/urlUtils.js#L26-L33
 * for more info.
 * @type {?}
 */
let anchor;
/**
 * @param {?} url
 * @return {?}
 */
function resolveUrl(url) {
    if (!anchor) {
        anchor = document.createElement('a');
    }
    anchor.setAttribute('href', url);
    anchor.setAttribute('href', anchor.href);
    return {
        // IE does not start `pathname` with `/` like other browsers.
        pathname: `/${anchor.pathname.replace(/^\//, '')}`,
        search: anchor.search,
        hash: anchor.hash
    };
}

/**
 * @fileoverview added by tsickle
 * Generated from: packages/router/upgrade/public_api.ts
 * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */

/**
 * @fileoverview added by tsickle
 * Generated from: packages/router/upgrade/index.ts
 * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */

/**
 * Generated bundle index. Do not edit.
 */

export { RouterUpgradeInitializer, locationSyncBootstrapListener, setUpLocationSync };
//# sourceMappingURL=upgrade.js.map
