/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
import { Inject, Injectable, Optional } from '@angular/core';
import { APP_BASE_HREF, LocationStrategy } from './location_strategy';
import { PlatformLocation } from './platform_location';
import { joinWithSlash, normalizeQueryParams } from './util';
import * as i0 from "@angular/core";
import * as i1 from "./platform_location";
/**
 * @description
 * A {@link LocationStrategy} used to configure the {@link Location} service to
 * represent its state in the
 * [hash fragment](https://en.wikipedia.org/wiki/Uniform_Resource_Locator#Syntax)
 * of the browser's URL.
 *
 * For instance, if you call `location.go('/foo')`, the browser's URL will become
 * `example.com#/foo`.
 *
 * @usageNotes
 *
 * ### Example
 *
 * {@example common/location/ts/hash_location_component.ts region='LocationComponent'}
 *
 * @publicApi
 */
export class HashLocationStrategy extends LocationStrategy {
    constructor(_platformLocation, _baseHref) {
        super();
        this._platformLocation = _platformLocation;
        this._baseHref = '';
        this._removeListenerFns = [];
        if (_baseHref != null) {
            this._baseHref = _baseHref;
        }
    }
    /** @nodoc */
    ngOnDestroy() {
        while (this._removeListenerFns.length) {
            this._removeListenerFns.pop()();
        }
    }
    onPopState(fn) {
        this._removeListenerFns.push(this._platformLocation.onPopState(fn), this._platformLocation.onHashChange(fn));
    }
    getBaseHref() {
        return this._baseHref;
    }
    path(includeHash = false) {
        // the hash value is always prefixed with a `#`
        // and if it is empty then it will stay empty
        let path = this._platformLocation.hash;
        if (path == null)
            path = '#';
        return path.length > 0 ? path.substring(1) : path;
    }
    prepareExternalUrl(internal) {
        const url = joinWithSlash(this._baseHref, internal);
        return url.length > 0 ? ('#' + url) : url;
    }
    pushState(state, title, path, queryParams) {
        let url = this.prepareExternalUrl(path + normalizeQueryParams(queryParams));
        if (url.length == 0) {
            url = this._platformLocation.pathname;
        }
        this._platformLocation.pushState(state, title, url);
    }
    replaceState(state, title, path, queryParams) {
        let url = this.prepareExternalUrl(path + normalizeQueryParams(queryParams));
        if (url.length == 0) {
            url = this._platformLocation.pathname;
        }
        this._platformLocation.replaceState(state, title, url);
    }
    forward() {
        this._platformLocation.forward();
    }
    back() {
        this._platformLocation.back();
    }
    getState() {
        return this._platformLocation.getState();
    }
    historyGo(relativePosition = 0) {
        this._platformLocation.historyGo?.(relativePosition);
    }
}
HashLocationStrategy.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "14.2.8", ngImport: i0, type: HashLocationStrategy, deps: [{ token: i1.PlatformLocation }, { token: APP_BASE_HREF, optional: true }], target: i0.ɵɵFactoryTarget.Injectable });
HashLocationStrategy.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "14.2.8", ngImport: i0, type: HashLocationStrategy });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "14.2.8", ngImport: i0, type: HashLocationStrategy, decorators: [{
            type: Injectable
        }], ctorParameters: function () { return [{ type: i1.PlatformLocation }, { type: undefined, decorators: [{
                    type: Optional
                }, {
                    type: Inject,
                    args: [APP_BASE_HREF]
                }] }]; } });
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