fix(router): fix NgxMatomoRouterModule not being correctly enabled …

…without `.forRoot()` call

fix #68

projects/ngx-matomo-client/src/lib/ngx-matomo-providers.ts

@@ -2,7 +2,6 @@ import {
   ENVIRONMENT_INITIALIZER,
   EnvironmentProviders,
   inject,
-  InjectionToken,
   makeEnvironmentProviders,
   Provider,
   Type,
@@ -141,13 +140,7 @@ export function withScriptFactory(scriptFactory: MatomoScriptFactory): MatomoFea
 
 /** Enable automatic page views tracking */
 export function withRouter(config?: MatomoRouterConfiguration): MatomoFeature {
-  const providers = provideRouterInternal(config);
-
-  return createMatomoFeature(MatomoFeatureKind.Router, providers);
-}
-
-export function provideRouterInternal(config?: MatomoRouterConfiguration): Provider[] {
-  return [
+  const providers = [
     { provide: MATOMO_ROUTER_ENABLED, useValue: true },
     { provide: MATOMO_ROUTER_CONFIGURATION, useValue: config },
     {
@@ -158,6 +151,8 @@ export function provideRouterInternal(config?: MatomoRouterConfiguration): Provi
       },
     },
   ];
+
+  return createMatomoFeature(MatomoFeatureKind.Router, providers);
 }
 
 /** Add some matomo router interceptors */

projects/ngx-matomo-client/src/lib/ngx-matomo-router.module.ts

@@ -1,17 +1,36 @@
-import { ModuleWithProviders, NgModule } from '@angular/core';
-import { provideRouterInternal } from './ngx-matomo-providers';
-import { MatomoRouterConfigurationWithInterceptors } from './router/configuration';
+import { ModuleWithProviders, NgModule, Optional, SkipSelf } from '@angular/core';
+import {
+  MATOMO_ROUTER_CONFIGURATION,
+  MatomoRouterConfigurationWithInterceptors,
+} from './router/configuration';
 import { provideInterceptors } from './router/interceptor';
+import { MatomoRouter } from './router/matomo-router.service';
+import { MATOMO_ROUTER_ENABLED } from './tracker/configuration';
 
-@NgModule()
+@NgModule({
+  providers: [{ provide: MATOMO_ROUTER_ENABLED, useValue: true }],
+})
 export class NgxMatomoRouterModule {
+  constructor(
+    private readonly router: MatomoRouter,
+    @Optional() @SkipSelf() parent?: NgxMatomoRouterModule
+  ) {
+    if (!parent) {
+      // Do not initialize if it is already (by a parent module)
+      this.router.initialize();
+    }
+  }
+
   static forRoot({
     interceptors,
     ...config
   }: MatomoRouterConfigurationWithInterceptors = {}): ModuleWithProviders<NgxMatomoRouterModule> {
     return {
       ngModule: NgxMatomoRouterModule,
-      providers: [provideRouterInternal(config), provideInterceptors(interceptors)],
+      providers: [
+        { provide: MATOMO_ROUTER_CONFIGURATION, useValue: config },
+        provideInterceptors(interceptors),
+      ],
     };
   }
 }