/**
 * @license Angular v16.2.9
 * (c) 2010-2022 Google LLC. https://angular.io/
 * License: MIT
 */

import * as i0 from '@angular/core';
import { EventEmitter, Injectable, InjectionToken, Inject, Optional } from '@angular/core';
import { LocationStrategy, Location } from '@angular/common';
import { Subject } from 'rxjs';

/**
 * Joins two parts of a URL with a slash if needed.
 *
 * @param start  URL string
 * @param end    URL string
 *
 *
 * @returns The joined URL string.
 */
function joinWithSlash(start, end) {
    if (start.length == 0) {
        return end;
    }
    if (end.length == 0) {
        return start;
    }
    let slashes = 0;
    if (start.endsWith('/')) {
        slashes++;
    }
    if (end.startsWith('/')) {
        slashes++;
    }
    if (slashes == 2) {
        return start + end.substring(1);
    }
    if (slashes == 1) {
        return start + end;
    }
    return start + '/' + end;
}
/**
 * Removes a trailing slash from a URL string if needed.
 * Looks for the first occurrence of either `#`, `?`, or the end of the
 * line as `/` characters and removes the trailing slash if one exists.
 *
 * @param url URL string.
 *
 * @returns The URL string, modified if needed.
 */
function stripTrailingSlash(url) {
    const match = url.match(/#|\?|$/);
    const pathEndIdx = match && match.index || url.length;
    const droppedSlashIdx = pathEndIdx - (url[pathEndIdx - 1] === '/' ? 1 : 0);
    return url.slice(0, droppedSlashIdx) + url.slice(pathEndIdx);
}
/**
 * Normalizes URL parameters by prepending with `?` if needed.
 *
 * @param  params String of URL parameters.
 *
 * @returns The normalized URL parameters string.
 */
function normalizeQueryParams(params) {
    return params && params[0] !== '?' ? '?' + params : params;
}

/**
 * A spy for {@link Location} that allows tests to fire simulated location events.
 *
 * @publicApi
 */
class SpyLocation {
    constructor() {
        this.urlChanges = [];
        this._history = [new LocationState('', '', null)];
        this._historyIndex = 0;
        /** @internal */
        this._subject = new EventEmitter();
        /** @internal */
        this._basePath = '';
        /** @internal */
        this._locationStrategy = null;
        /** @internal */
        this._urlChangeListeners = [];
        /** @internal */
        this._urlChangeSubscription = null;
    }
    /** @nodoc */
    ngOnDestroy() {
        this._urlChangeSubscription?.unsubscribe();
        this._urlChangeListeners = [];
    }
    setInitialPath(url) {
        this._history[this._historyIndex].path = url;
    }
    setBaseHref(url) {
        this._basePath = url;
    }
    path() {
        return this._history[this._historyIndex].path;
    }
    getState() {
        return this._history[this._historyIndex].state;
    }
    isCurrentPathEqualTo(path, query = '') {
        const givenPath = path.endsWith('/') ? path.substring(0, path.length - 1) : path;
        const currPath = this.path().endsWith('/') ? this.path().substring(0, this.path().length - 1) : this.path();
        return currPath == givenPath + (query.length > 0 ? ('?' + query) : '');
    }
    simulateUrlPop(pathname) {
        this._subject.emit({ 'url': pathname, 'pop': true, 'type': 'popstate' });
    }
    simulateHashChange(pathname) {
        const path = this.prepareExternalUrl(pathname);
        this.pushHistory(path, '', null);
        this.urlChanges.push('hash: ' + pathname);
        // the browser will automatically fire popstate event before each `hashchange` event, so we need
        // to simulate it.
        this._subject.emit({ 'url': pathname, 'pop': true, 'type': 'popstate' });
        this._subject.emit({ 'url': pathname, 'pop': true, 'type': 'hashchange' });
    }
    prepareExternalUrl(url) {
        if (url.length > 0 && !url.startsWith('/')) {
            url = '/' + url;
        }
        return this._basePath + url;
    }
    go(path, query = '', state = null) {
        path = this.prepareExternalUrl(path);
        this.pushHistory(path, query, state);
        const locationState = this._history[this._historyIndex - 1];
        if (locationState.path == path && locationState.query == query) {
            return;
        }
        const url = path + (query.length > 0 ? ('?' + query) : '');
        this.urlChanges.push(url);
        this._notifyUrlChangeListeners(path + normalizeQueryParams(query), state);
    }
    replaceState(path, query = '', state = null) {
        path = this.prepareExternalUrl(path);
        const history = this._history[this._historyIndex];
        history.state = state;
        if (history.path == path && history.query == query) {
            return;
        }
        history.path = path;
        history.query = query;
        const url = path + (query.length > 0 ? ('?' + query) : '');
        this.urlChanges.push('replace: ' + url);
        this._notifyUrlChangeListeners(path + normalizeQueryParams(query), state);
    }
    forward() {
        if (this._historyIndex < (this._history.length - 1)) {
            this._historyIndex++;
            this._subject.emit({ 'url': this.path(), 'state': this.getState(), 'pop': true, 'type': 'popstate' });
        }
    }
    back() {
        if (this._historyIndex > 0) {
            this._historyIndex--;
            this._subject.emit({ 'url': this.path(), 'state': this.getState(), 'pop': true, 'type': 'popstate' });
        }
    }
    historyGo(relativePosition = 0) {
        const nextPageIndex = this._historyIndex + relativePosition;
        if (nextPageIndex >= 0 && nextPageIndex < this._history.length) {
            this._historyIndex = nextPageIndex;
            this._subject.emit({ 'url': this.path(), 'state': this.getState(), 'pop': true, 'type': 'popstate' });
        }
    }
    onUrlChange(fn) {
        this._urlChangeListeners.push(fn);
        if (!this._urlChangeSubscription) {
            this._urlChangeSubscription = this.subscribe(v => {
                this._notifyUrlChangeListeners(v.url, v.state);
            });
        }
        return () => {
            const fnIndex = this._urlChangeListeners.indexOf(fn);
            this._urlChangeListeners.splice(fnIndex, 1);
            if (this._urlChangeListeners.length === 0) {
                this._urlChangeSubscription?.unsubscribe();
                this._urlChangeSubscription = null;
            }
        };
    }
    /** @internal */
    _notifyUrlChangeListeners(url = '', state) {
        this._urlChangeListeners.forEach(fn => fn(url, state));
    }
    subscribe(onNext, onThrow, onReturn) {
        return this._subject.subscribe({ next: onNext, error: onThrow, complete: onReturn });
    }
    normalize(url) {
        return null;
    }
    pushHistory(path, query, state) {
        if (this._historyIndex > 0) {
            this._history.splice(this._historyIndex + 1);
        }
        this._history.push(new LocationState(path, query, state));
        this._historyIndex = this._history.length - 1;
    }
    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.2.9", ngImport: i0, type: SpyLocation, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }
    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "16.2.9", ngImport: i0, type: SpyLocation }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.2.9", ngImport: i0, type: SpyLocation, decorators: [{
            type: Injectable
        }] });
class LocationState {
    constructor(path, query, state) {
        this.path = path;
        this.query = query;
        this.state = state;
    }
}

/**
 * A mock implementation of {@link LocationStrategy} that allows tests to fire simulated
 * location events.
 *
 * @publicApi
 */
class MockLocationStrategy extends LocationStrategy {
    constructor() {
        super();
        this.internalBaseHref = '/';
        this.internalPath = '/';
        this.internalTitle = '';
        this.urlChanges = [];
        /** @internal */
        this._subject = new EventEmitter();
        this.stateChanges = [];
    }
    simulatePopState(url) {
        this.internalPath = url;
        this._subject.emit(new _MockPopStateEvent(this.path()));
    }
    path(includeHash = false) {
        return this.internalPath;
    }
    prepareExternalUrl(internal) {
        if (internal.startsWith('/') && this.internalBaseHref.endsWith('/')) {
            return this.internalBaseHref + internal.substring(1);
        }
        return this.internalBaseHref + internal;
    }
    pushState(ctx, title, path, query) {
        // Add state change to changes array
        this.stateChanges.push(ctx);
        this.internalTitle = title;
        const url = path + (query.length > 0 ? ('?' + query) : '');
        this.internalPath = url;
        const externalUrl = this.prepareExternalUrl(url);
        this.urlChanges.push(externalUrl);
    }
    replaceState(ctx, title, path, query) {
        // Reset the last index of stateChanges to the ctx (state) object
        this.stateChanges[(this.stateChanges.length || 1) - 1] = ctx;
        this.internalTitle = title;
        const url = path + (query.length > 0 ? ('?' + query) : '');
        this.internalPath = url;
        const externalUrl = this.prepareExternalUrl(url);
        this.urlChanges.push('replace: ' + externalUrl);
    }
    onPopState(fn) {
        this._subject.subscribe({ next: fn });
    }
    getBaseHref() {
        return this.internalBaseHref;
    }
    back() {
        if (this.urlChanges.length > 0) {
            this.urlChanges.pop();
            this.stateChanges.pop();
            const nextUrl = this.urlChanges.length > 0 ? this.urlChanges[this.urlChanges.length - 1] : '';
            this.simulatePopState(nextUrl);
        }
    }
    forward() {
        throw 'not implemented';
    }
    getState() {
        return this.stateChanges[(this.stateChanges.length || 1) - 1];
    }
    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.2.9", ngImport: i0, type: MockLocationStrategy, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }
    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "16.2.9", ngImport: i0, type: MockLocationStrategy }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.2.9", ngImport: i0, type: MockLocationStrategy, decorators: [{
            type: Injectable
        }], ctorParameters: function () { return []; } });
class _MockPopStateEvent {
    constructor(newUrl) {
        this.newUrl = newUrl;
        this.pop = true;
        this.type = 'popstate';
    }
}

/**
 * Parser from https://tools.ietf.org/html/rfc3986#appendix-B
 * ^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?
 *  12            3  4          5       6  7        8 9
 *
 * Example: http://www.ics.uci.edu/pub/ietf/uri/#Related
 *
 * Results in:
 *
 * $1 = http:
 * $2 = http
 * $3 = //www.ics.uci.edu
 * $4 = www.ics.uci.edu
 * $5 = /pub/ietf/uri/
 * $6 = <undefined>
 * $7 = <undefined>
 * $8 = #Related
 * $9 = Related
 */
const urlParse = /^(([^:\/?#]+):)?(\/\/([^\/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?/;
function parseUrl(urlStr, baseHref) {
    const verifyProtocol = /^((http[s]?|ftp):\/\/)/;
    let serverBase;
    // URL class requires full URL. If the URL string doesn't start with protocol, we need to add
    // an arbitrary base URL which can be removed afterward.
    if (!verifyProtocol.test(urlStr)) {
        serverBase = 'http://empty.com/';
    }
    let parsedUrl;
    try {
        parsedUrl = new URL(urlStr, serverBase);
    }
    catch (e) {
        const result = urlParse.exec(serverBase || '' + urlStr);
        if (!result) {
            throw new Error(`Invalid URL: ${urlStr} with base: ${baseHref}`);
        }
        const hostSplit = result[4].split(':');
        parsedUrl = {
            protocol: result[1],
            hostname: hostSplit[0],
            port: hostSplit[1] || '',
            pathname: result[5],
            search: result[6],
            hash: result[8],
        };
    }
    if (parsedUrl.pathname && parsedUrl.pathname.indexOf(baseHref) === 0) {
        parsedUrl.pathname = parsedUrl.pathname.substring(baseHref.length);
    }
    return {
        hostname: !serverBase && parsedUrl.hostname || '',
        protocol: !serverBase && parsedUrl.protocol || '',
        port: !serverBase && parsedUrl.port || '',
        pathname: parsedUrl.pathname || '/',
        search: parsedUrl.search || '',
        hash: parsedUrl.hash || '',
    };
}
/**
 * Provider for mock platform location config
 *
 * @publicApi
 */
const MOCK_PLATFORM_LOCATION_CONFIG = new InjectionToken('MOCK_PLATFORM_LOCATION_CONFIG');
/**
 * Mock implementation of URL state.
 *
 * @publicApi
 */
class MockPlatformLocation {
    constructor(config) {
        this.baseHref = '';
        this.hashUpdate = new Subject();
        this.popStateSubject = new Subject();
        this.urlChangeIndex = 0;
        this.urlChanges = [{ hostname: '', protocol: '', port: '', pathname: '/', search: '', hash: '', state: null }];
        if (config) {
            this.baseHref = config.appBaseHref || '';
            const parsedChanges = this.parseChanges(null, config.startUrl || 'http://_empty_/', this.baseHref);
            this.urlChanges[0] = { ...parsedChanges };
        }
    }
    get hostname() {
        return this.urlChanges[this.urlChangeIndex].hostname;
    }
    get protocol() {
        return this.urlChanges[this.urlChangeIndex].protocol;
    }
    get port() {
        return this.urlChanges[this.urlChangeIndex].port;
    }
    get pathname() {
        return this.urlChanges[this.urlChangeIndex].pathname;
    }
    get search() {
        return this.urlChanges[this.urlChangeIndex].search;
    }
    get hash() {
        return this.urlChanges[this.urlChangeIndex].hash;
    }
    get state() {
        return this.urlChanges[this.urlChangeIndex].state;
    }
    getBaseHrefFromDOM() {
        return this.baseHref;
    }
    onPopState(fn) {
        const subscription = this.popStateSubject.subscribe(fn);
        return () => subscription.unsubscribe();
    }
    onHashChange(fn) {
        const subscription = this.hashUpdate.subscribe(fn);
        return () => subscription.unsubscribe();
    }
    get href() {
        let url = `${this.protocol}//${this.hostname}${this.port ? ':' + this.port : ''}`;
        url += `${this.pathname === '/' ? '' : this.pathname}${this.search}${this.hash}`;
        return url;
    }
    get url() {
        return `${this.pathname}${this.search}${this.hash}`;
    }
    parseChanges(state, url, baseHref = '') {
        // When the `history.state` value is stored, it is always copied.
        state = JSON.parse(JSON.stringify(state));
        return { ...parseUrl(url, baseHref), state };
    }
    replaceState(state, title, newUrl) {
        const { pathname, search, state: parsedState, hash } = this.parseChanges(state, newUrl);
        this.urlChanges[this.urlChangeIndex] =
            { ...this.urlChanges[this.urlChangeIndex], pathname, search, hash, state: parsedState };
    }
    pushState(state, title, newUrl) {
        const { pathname, search, state: parsedState, hash } = this.parseChanges(state, newUrl);
        if (this.urlChangeIndex > 0) {
            this.urlChanges.splice(this.urlChangeIndex + 1);
        }
        this.urlChanges.push({ ...this.urlChanges[this.urlChangeIndex], pathname, search, hash, state: parsedState });
        this.urlChangeIndex = this.urlChanges.length - 1;
    }
    forward() {
        const oldUrl = this.url;
        const oldHash = this.hash;
        if (this.urlChangeIndex < this.urlChanges.length) {
            this.urlChangeIndex++;
        }
        this.emitEvents(oldHash, oldUrl);
    }
    back() {
        const oldUrl = this.url;
        const oldHash = this.hash;
        if (this.urlChangeIndex > 0) {
            this.urlChangeIndex--;
        }
        this.emitEvents(oldHash, oldUrl);
    }
    historyGo(relativePosition = 0) {
        const oldUrl = this.url;
        const oldHash = this.hash;
        const nextPageIndex = this.urlChangeIndex + relativePosition;
        if (nextPageIndex >= 0 && nextPageIndex < this.urlChanges.length) {
            this.urlChangeIndex = nextPageIndex;
        }
        this.emitEvents(oldHash, oldUrl);
    }
    getState() {
        return this.state;
    }
    /**
     * Browsers are inconsistent in when they fire events and perform the state updates
     * The most easiest thing to do in our mock is synchronous and that happens to match
     * Firefox and Chrome, at least somewhat closely
     *
     * https://github.com/WICG/navigation-api#watching-for-navigations
     * https://docs.google.com/document/d/1Pdve-DJ1JCGilj9Yqf5HxRJyBKSel5owgOvUJqTauwU/edit#heading=h.3ye4v71wsz94
     * popstate is always sent before hashchange:
     * https://developer.mozilla.org/en-US/docs/Web/API/Window/popstate_event#when_popstate_is_sent
     */
    emitEvents(oldHash, oldUrl) {
        this.popStateSubject.next({ type: 'popstate', state: this.getState(), oldUrl, newUrl: this.url });
        if (oldHash !== this.hash) {
            this.hashUpdate.next({ type: 'hashchange', state: null, oldUrl, newUrl: this.url });
        }
    }
    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.2.9", ngImport: i0, type: MockPlatformLocation, deps: [{ token: MOCK_PLATFORM_LOCATION_CONFIG, optional: true }], target: i0.ɵɵFactoryTarget.Injectable }); }
    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "16.2.9", ngImport: i0, type: MockPlatformLocation }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.2.9", ngImport: i0, type: MockPlatformLocation, decorators: [{
            type: Injectable
        }], ctorParameters: function () { return [{ type: undefined, decorators: [{
                    type: Inject,
                    args: [MOCK_PLATFORM_LOCATION_CONFIG]
                }, {
                    type: Optional
                }] }]; } });

/**
 * Returns mock providers for the `Location` and `LocationStrategy` classes.
 * The mocks are helpful in tests to fire simulated location events.
 *
 * @publicApi
 */
function provideLocationMocks() {
    return [
        { provide: Location, useClass: SpyLocation },
        { provide: LocationStrategy, useClass: MockLocationStrategy },
    ];
}

/**
 * @module
 * @description
 * Entry point for all public APIs of the common/testing package.
 */

/**
 * @module
 * @description
 * Entry point for all public APIs of this package.
 */
// This file only reexports content of the `src` folder. Keep it that way.

// This file is not used to build this module. It is only used during editing

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

export { MOCK_PLATFORM_LOCATION_CONFIG, MockLocationStrategy, MockPlatformLocation, SpyLocation, provideLocationMocks };
//# sourceMappingURL=testing.mjs.map
