/**
 * @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 { Compiler, createEnvironmentInjector, EnvironmentInjector, Injectable } from '@angular/core';
import { from, of } from 'rxjs';
import { catchError, concatMap, filter, mergeAll, mergeMap } from 'rxjs/operators';
import { NavigationEnd } from './events';
import { Router } from './router';
import { RouterConfigLoader } from './router_config_loader';
import * as i0 from "@angular/core";
import * as i1 from "./router";
import * as i2 from "./router_config_loader";
/**
 * @description
 *
 * Provides a preloading strategy.
 *
 * @publicApi
 */
export class PreloadingStrategy {
}
/**
 * @description
 *
 * Provides a preloading strategy that preloads all modules as quickly as possible.
 *
 * ```
 * RouterModule.forRoot(ROUTES, {preloadingStrategy: PreloadAllModules})
 * ```
 *
 * @publicApi
 */
export class PreloadAllModules {
    preload(route, fn) {
        return fn().pipe(catchError(() => of(null)));
    }
    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: PreloadAllModules, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }
    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: PreloadAllModules, providedIn: 'root' }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: PreloadAllModules, decorators: [{
            type: Injectable,
            args: [{ providedIn: 'root' }]
        }] });
/**
 * @description
 *
 * Provides a preloading strategy that does not preload any modules.
 *
 * This strategy is enabled by default.
 *
 * @publicApi
 */
export class NoPreloading {
    preload(route, fn) {
        return of(null);
    }
    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: NoPreloading, deps: [], target: i0.ɵɵFactoryTarget.Injectable }); }
    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: NoPreloading, providedIn: 'root' }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: NoPreloading, decorators: [{
            type: Injectable,
            args: [{ providedIn: 'root' }]
        }] });
/**
 * The preloader optimistically loads all router configurations to
 * make navigations into lazily-loaded sections of the application faster.
 *
 * The preloader runs in the background. When the router bootstraps, the preloader
 * starts listening to all navigation events. After every such event, the preloader
 * will check if any configurations can be loaded lazily.
 *
 * If a route is protected by `canLoad` guards, the preloaded will not load it.
 *
 * @publicApi
 */
export class RouterPreloader {
    constructor(router, compiler, injector, preloadingStrategy, loader) {
        this.router = router;
        this.injector = injector;
        this.preloadingStrategy = preloadingStrategy;
        this.loader = loader;
    }
    setUpPreloading() {
        this.subscription =
            this.router.events
                .pipe(filter((e) => e instanceof NavigationEnd), concatMap(() => this.preload()))
                .subscribe(() => { });
    }
    preload() {
        return this.processRoutes(this.injector, this.router.config);
    }
    /** @nodoc */
    ngOnDestroy() {
        if (this.subscription) {
            this.subscription.unsubscribe();
        }
    }
    processRoutes(injector, routes) {
        const res = [];
        for (const route of routes) {
            if (route.providers && !route._injector) {
                route._injector =
                    createEnvironmentInjector(route.providers, injector, `Route: ${route.path}`);
            }
            const injectorForCurrentRoute = route._injector ?? injector;
            const injectorForChildren = route._loadedInjector ?? injectorForCurrentRoute;
            // Note that `canLoad` is only checked as a condition that prevents `loadChildren` and not
            // `loadComponent`. `canLoad` guards only block loading of child routes by design. This
            // happens as a consequence of needing to descend into children for route matching immediately
            // while component loading is deferred until route activation. Because `canLoad` guards can
            // have side effects, we cannot execute them here so we instead skip preloading altogether
            // when present. Lastly, it remains to be decided whether `canLoad` should behave this way
            // at all. Code splitting and lazy loading is separate from client-side authorization checks
            // and should not be used as a security measure to prevent loading of code.
            if ((route.loadChildren && !route._loadedRoutes && route.canLoad === undefined) ||
                (route.loadComponent && !route._loadedComponent)) {
                res.push(this.preloadConfig(injectorForCurrentRoute, route));
            }
            if (route.children || route._loadedRoutes) {
                res.push(this.processRoutes(injectorForChildren, (route.children ?? route._loadedRoutes)));
            }
        }
        return from(res).pipe(mergeAll());
    }
    preloadConfig(injector, route) {
        return this.preloadingStrategy.preload(route, () => {
            let loadedChildren$;
            if (route.loadChildren && route.canLoad === undefined) {
                loadedChildren$ = this.loader.loadChildren(injector, route);
            }
            else {
                loadedChildren$ = of(null);
            }
            const recursiveLoadChildren$ = loadedChildren$.pipe(mergeMap((config) => {
                if (config === null) {
                    return of(void 0);
                }
                route._loadedRoutes = config.routes;
                route._loadedInjector = config.injector;
                // If the loaded config was a module, use that as the module/module injector going
                // forward. Otherwise, continue using the current module/module injector.
                return this.processRoutes(config.injector ?? injector, config.routes);
            }));
            if (route.loadComponent && !route._loadedComponent) {
                const loadComponent$ = this.loader.loadComponent(route);
                return from([recursiveLoadChildren$, loadComponent$]).pipe(mergeAll());
            }
            else {
                return recursiveLoadChildren$;
            }
        });
    }
    static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: RouterPreloader, deps: [{ token: i1.Router }, { token: i0.Compiler }, { token: i0.EnvironmentInjector }, { token: PreloadingStrategy }, { token: i2.RouterConfigLoader }], target: i0.ɵɵFactoryTarget.Injectable }); }
    static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: RouterPreloader, providedIn: 'root' }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.2.12", ngImport: i0, type: RouterPreloader, decorators: [{
            type: Injectable,
            args: [{ providedIn: 'root' }]
        }], ctorParameters: function () { return [{ type: i1.Router }, { type: i0.Compiler }, { type: i0.EnvironmentInjector }, { type: PreloadingStrategy }, { type: i2.RouterConfigLoader }]; } });
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"router_preloader.js","sourceRoot":"","sources":["../../../../../../packages/router/src/router_preloader.ts"],"names":[],"mappings":"AAAA;;;;;;GAMG;AAEH,OAAO,EAAC,QAAQ,EAAE,yBAAyB,EAAE,mBAAmB,EAAE,UAAU,EAAY,MAAM,eAAe,CAAC;AAC9G,OAAO,EAAC,IAAI,EAAc,EAAE,EAAe,MAAM,MAAM,CAAC;AACxD,OAAO,EAAC,UAAU,EAAE,SAAS,EAAE,MAAM,EAAE,QAAQ,EAAE,QAAQ,EAAC,MAAM,gBAAgB,CAAC;AAEjF,OAAO,EAAQ,aAAa,EAAC,MAAM,UAAU,CAAC;AAE9C,OAAO,EAAC,MAAM,EAAC,MAAM,UAAU,CAAC;AAChC,OAAO,EAAC,kBAAkB,EAAC,MAAM,wBAAwB,CAAC;;;;AAG1D;;;;;;GAMG;AACH,MAAM,OAAgB,kBAAkB;CAEvC;AAED;;;;;;;;;;GAUG;AAEH,MAAM,OAAO,iBAAiB;IAC5B,OAAO,CAAC,KAAY,EAAE,EAAyB;QAC7C,OAAO,EAAE,EAAE,CAAC,IAAI,CAAC,UAAU,CAAC,GAAG,EAAE,CAAC,EAAE,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC;IAC/C,CAAC;yHAHU,iBAAiB;6HAAjB,iBAAiB,cADL,MAAM;;sGAClB,iBAAiB;kBAD7B,UAAU;mBAAC,EAAC,UAAU,EAAE,MAAM,EAAC;;AAOhC;;;;;;;;GAQG;AAEH,MAAM,OAAO,YAAY;IACvB,OAAO,CAAC,KAAY,EAAE,EAAyB;QAC7C,OAAO,EAAE,CAAC,IAAI,CAAC,CAAC;IAClB,CAAC;yHAHU,YAAY;6HAAZ,YAAY,cADA,MAAM;;sGAClB,YAAY;kBADxB,UAAU;mBAAC,EAAC,UAAU,EAAE,MAAM,EAAC;;AAOhC;;;;;;;;;;;GAWG;AAEH,MAAM,OAAO,eAAe;IAG1B,YACY,MAAc,EAAE,QAAkB,EAAU,QAA6B,EACzE,kBAAsC,EAAU,MAA0B;QAD1E,WAAM,GAAN,MAAM,CAAQ;QAA8B,aAAQ,GAAR,QAAQ,CAAqB;QACzE,uBAAkB,GAAlB,kBAAkB,CAAoB;QAAU,WAAM,GAAN,MAAM,CAAoB;IAAG,CAAC;IAE1F,eAAe;QACb,IAAI,CAAC,YAAY;YACb,IAAI,CAAC,MAAM,CAAC,MAAM;iBACb,IAAI,CAAC,MAAM,CAAC,CAAC,CAAQ,EAAE,EAAE,CAAC,CAAC,YAAY,aAAa,CAAC,EAAE,SAAS,CAAC,GAAG,EAAE,CAAC,IAAI,CAAC,OAAO,EAAE,CAAC,CAAC;iBACvF,SAAS,CAAC,GAAG,EAAE,GAAE,CAAC,CAAC,CAAC;IAC/B,CAAC;IAED,OAAO;QACL,OAAO,IAAI,CAAC,aAAa,CAAC,IAAI,CAAC,QAAQ,EAAE,IAAI,CAAC,MAAM,CAAC,MAAM,CAAC,CAAC;IAC/D,CAAC;IAED,aAAa;IACb,WAAW;QACT,IAAI,IAAI,CAAC,YAAY,EAAE;YACrB,IAAI,CAAC,YAAY,CAAC,WAAW,EAAE,CAAC;SACjC;IACH,CAAC;IAEO,aAAa,CAAC,QAA6B,EAAE,MAAc;QACjE,MAAM,GAAG,GAAsB,EAAE,CAAC;QAClC,KAAK,MAAM,KAAK,IAAI,MAAM,EAAE;YAC1B,IAAI,KAAK,CAAC,SAAS,IAAI,CAAC,KAAK,CAAC,SAAS,EAAE;gBACvC,KAAK,CAAC,SAAS;oBACX,yBAAyB,CAAC,KAAK,CAAC,SAAS,EAAE,QAAQ,EAAE,UAAU,KAAK,CAAC,IAAI,EAAE,CAAC,CAAC;aAClF;YAED,MAAM,uBAAuB,GAAG,KAAK,CAAC,SAAS,IAAI,QAAQ,CAAC;YAC5D,MAAM,mBAAmB,GAAG,KAAK,CAAC,eAAe,IAAI,uBAAuB,CAAC;YAE7E,0FAA0F;YAC1F,uFAAuF;YACvF,8FAA8F;YAC9F,2FAA2F;YAC3F,0FAA0F;YAC1F,0FAA0F;YAC1F,4FAA4F;YAC5F,2EAA2E;YAC3E,IAAI,CAAC,KAAK,CAAC,YAAY,IAAI,CAAC,KAAK,CAAC,aAAa,IAAI,KAAK,CAAC,OAAO,KAAK,SAAS,CAAC;gBAC3E,CAAC,KAAK,CAAC,aAAa,IAAI,CAAC,KAAK,CAAC,gBAAgB,CAAC,EAAE;gBACpD,GAAG,CAAC,IAAI,CAAC,IAAI,CAAC,aAAa,CAAC,uBAAuB,EAAE,KAAK,CAAC,CAAC,CAAC;aAC9D;YACD,IAAI,KAAK,CAAC,QAAQ,IAAI,KAAK,CAAC,aAAa,EAAE;gBACzC,GAAG,CAAC,IAAI,CAAC,IAAI,CAAC,aAAa,CAAC,mBAAmB,EAAE,CAAC,KAAK,CAAC,QAAQ,IAAI,KAAK,CAAC,aAAa,CAAE,CAAC,CAAC,CAAC;aAC7F;SACF;QACD,OAAO,IAAI,CAAC,GAAG,CAAC,CAAC,IAAI,CAAC,QAAQ,EAAE,CAAC,CAAC;IACpC,CAAC;IAEO,aAAa,CAAC,QAA6B,EAAE,KAAY;QAC/D,OAAO,IAAI,CAAC,kBAAkB,CAAC,OAAO,CAAC,KAAK,EAAE,GAAG,EAAE;YACjD,IAAI,eAAoD,CAAC;YACzD,IAAI,KAAK,CAAC,YAAY,IAAI,KAAK,CAAC,OAAO,KAAK,SAAS,EAAE;gBACrD,eAAe,GAAG,IAAI,CAAC,MAAM,CAAC,YAAY,CAAC,QAAQ,EAAE,KAAK,CAAC,CAAC;aAC7D;iBAAM;gBACL,eAAe,GAAG,EAAE,CAAC,IAAI,CAAC,CAAC;aAC5B;YAED,MAAM,sBAAsB,GACxB,eAAe,CAAC,IAAI,CAAC,QAAQ,CAAC,CAAC,MAA+B,EAAE,EAAE;gBAChE,IAAI,MAAM,KAAK,IAAI,EAAE;oBACnB,OAAO,EAAE,CAAC,KAAK,CAAC,CAAC,CAAC;iBACnB;gBACD,KAAK,CAAC,aAAa,GAAG,MAAM,CAAC,MAAM,CAAC;gBACpC,KAAK,CAAC,eAAe,GAAG,MAAM,CAAC,QAAQ,CAAC;gBACxC,kFAAkF;gBAClF,yEAAyE;gBACzE,OAAO,IAAI,CAAC,aAAa,CAAC,MAAM,CAAC,QAAQ,IAAI,QAAQ,EAAE,MAAM,CAAC,MAAM,CAAC,CAAC;YACxE,CAAC,CAAC,CAAC,CAAC;YACR,IAAI,KAAK,CAAC,aAAa,IAAI,CAAC,KAAK,CAAC,gBAAgB,EAAE;gBAClD,MAAM,cAAc,GAAG,IAAI,CAAC,MAAM,CAAC,aAAa,CAAC,KAAK,CAAC,CAAC;gBACxD,OAAO,IAAI,CAAC,CAAC,sBAAsB,EAAE,cAAc,CAAC,CAAC,CAAC,IAAI,CAAC,QAAQ,EAAE,CAAC,CAAC;aACxE;iBAAM;gBACL,OAAO,sBAAsB,CAAC;aAC/B;QACH,CAAC,CAAC,CAAC;IACL,CAAC;yHAlFU,eAAe;6HAAf,eAAe,cADH,MAAM;;sGAClB,eAAe;kBAD3B,UAAU;mBAAC,EAAC,UAAU,EAAE,MAAM,EAAC","sourcesContent":["/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {Compiler, createEnvironmentInjector, EnvironmentInjector, Injectable, OnDestroy} from '@angular/core';\nimport {from, Observable, of, Subscription} from 'rxjs';\nimport {catchError, concatMap, filter, mergeAll, mergeMap} from 'rxjs/operators';\n\nimport {Event, NavigationEnd} from './events';\nimport {LoadedRouterConfig, Route, Routes} from './models';\nimport {Router} from './router';\nimport {RouterConfigLoader} from './router_config_loader';\n\n\n/**\n * @description\n *\n * Provides a preloading strategy.\n *\n * @publicApi\n */\nexport abstract class PreloadingStrategy {\n  abstract preload(route: Route, fn: () => Observable<any>): Observable<any>;\n}\n\n/**\n * @description\n *\n * Provides a preloading strategy that preloads all modules as quickly as possible.\n *\n * ```\n * RouterModule.forRoot(ROUTES, {preloadingStrategy: PreloadAllModules})\n * ```\n *\n * @publicApi\n */\n@Injectable({providedIn: 'root'})\nexport class PreloadAllModules implements PreloadingStrategy {\n  preload(route: Route, fn: () => Observable<any>): Observable<any> {\n    return fn().pipe(catchError(() => of(null)));\n  }\n}\n\n/**\n * @description\n *\n * Provides a preloading strategy that does not preload any modules.\n *\n * This strategy is enabled by default.\n *\n * @publicApi\n */\n@Injectable({providedIn: 'root'})\nexport class NoPreloading implements PreloadingStrategy {\n  preload(route: Route, fn: () => Observable<any>): Observable<any> {\n    return of(null);\n  }\n}\n\n/**\n * The preloader optimistically loads all router configurations to\n * make navigations into lazily-loaded sections of the application faster.\n *\n * The preloader runs in the background. When the router bootstraps, the preloader\n * starts listening to all navigation events. After every such event, the preloader\n * will check if any configurations can be loaded lazily.\n *\n * If a route is protected by `canLoad` guards, the preloaded will not load it.\n *\n * @publicApi\n */\n@Injectable({providedIn: 'root'})\nexport class RouterPreloader implements OnDestroy {\n  private subscription?: Subscription;\n\n  constructor(\n      private router: Router, compiler: Compiler, private injector: EnvironmentInjector,\n      private preloadingStrategy: PreloadingStrategy, private loader: RouterConfigLoader) {}\n\n  setUpPreloading(): void {\n    this.subscription =\n        this.router.events\n            .pipe(filter((e: Event) => e instanceof NavigationEnd), concatMap(() => this.preload()))\n            .subscribe(() => {});\n  }\n\n  preload(): Observable<any> {\n    return this.processRoutes(this.injector, this.router.config);\n  }\n\n  /** @nodoc */\n  ngOnDestroy(): void {\n    if (this.subscription) {\n      this.subscription.unsubscribe();\n    }\n  }\n\n  private processRoutes(injector: EnvironmentInjector, routes: Routes): Observable<void> {\n    const res: Observable<any>[] = [];\n    for (const route of routes) {\n      if (route.providers && !route._injector) {\n        route._injector =\n            createEnvironmentInjector(route.providers, injector, `Route: ${route.path}`);\n      }\n\n      const injectorForCurrentRoute = route._injector ?? injector;\n      const injectorForChildren = route._loadedInjector ?? injectorForCurrentRoute;\n\n      // Note that `canLoad` is only checked as a condition that prevents `loadChildren` and not\n      // `loadComponent`. `canLoad` guards only block loading of child routes by design. This\n      // happens as a consequence of needing to descend into children for route matching immediately\n      // while component loading is deferred until route activation. Because `canLoad` guards can\n      // have side effects, we cannot execute them here so we instead skip preloading altogether\n      // when present. Lastly, it remains to be decided whether `canLoad` should behave this way\n      // at all. Code splitting and lazy loading is separate from client-side authorization checks\n      // and should not be used as a security measure to prevent loading of code.\n      if ((route.loadChildren && !route._loadedRoutes && route.canLoad === undefined) ||\n          (route.loadComponent && !route._loadedComponent)) {\n        res.push(this.preloadConfig(injectorForCurrentRoute, route));\n      }\n      if (route.children || route._loadedRoutes) {\n        res.push(this.processRoutes(injectorForChildren, (route.children ?? route._loadedRoutes)!));\n      }\n    }\n    return from(res).pipe(mergeAll());\n  }\n\n  private preloadConfig(injector: EnvironmentInjector, route: Route): Observable<void> {\n    return this.preloadingStrategy.preload(route, () => {\n      let loadedChildren$: Observable<LoadedRouterConfig|null>;\n      if (route.loadChildren && route.canLoad === undefined) {\n        loadedChildren$ = this.loader.loadChildren(injector, route);\n      } else {\n        loadedChildren$ = of(null);\n      }\n\n      const recursiveLoadChildren$ =\n          loadedChildren$.pipe(mergeMap((config: LoadedRouterConfig|null) => {\n            if (config === null) {\n              return of(void 0);\n            }\n            route._loadedRoutes = config.routes;\n            route._loadedInjector = config.injector;\n            // If the loaded config was a module, use that as the module/module injector going\n            // forward. Otherwise, continue using the current module/module injector.\n            return this.processRoutes(config.injector ?? injector, config.routes);\n          }));\n      if (route.loadComponent && !route._loadedComponent) {\n        const loadComponent$ = this.loader.loadComponent(route);\n        return from([recursiveLoadChildren$, loadComponent$]).pipe(mergeAll());\n      } else {\n        return recursiveLoadChildren$;\n      }\n    });\n  }\n}\n"]}