feat(demo): add landing page with docs (#1951)

docs/app/@core/core.module.ts

@@ -0,0 +1,40 @@
+/**
+ * @license
+ * Copyright Akveo. All Rights Reserved.
+ * Licensed under the MIT License. See License.txt in the project root for license information.
+ */
+
+import { ModuleWithProviders, NgModule, Optional, SkipSelf } from '@angular/core';
+import { CommonModule } from '@angular/common';
+
+import { throwIfAlreadyLoaded } from './module-import-guard';
+import { DataModule } from './data/data.module';
+
+const PIPES = [
+];
+
+const NB_CORE_PROVIDERS = [
+  ...DataModule.forRoot().providers,
+];
+
+@NgModule({
+  imports: [
+    CommonModule,
+  ],
+  exports: [...PIPES],
+  declarations: [...PIPES],
+})
+export class CoreModule {
+  constructor(@Optional() @SkipSelf() parentModule: CoreModule) {
+    throwIfAlreadyLoaded(parentModule, 'CoreModule');
+  }
+
+  static forRoot(): ModuleWithProviders {
+    return <ModuleWithProviders>{
+      ngModule: CoreModule,
+      providers: [
+        ...NB_CORE_PROVIDERS,
+      ],
+    };
+  }
+}

docs/app/@core/data/data.module.ts

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+/**
+ * @license
+ * Copyright Akveo. All Rights Reserved.
+ * Licensed under the MIT License. See License.txt in the project root for license information.
+ */
+
+import { NgModule, ModuleWithProviders } from '@angular/core';
+import { CommonModule } from '@angular/common';
+
+import { HeaderMenuService } from './service/header-menu.service';
+import { ReviewsService } from './service/reviews.service';
+import { DescriptionsService } from './service/descriptions.service';
+
+const SERVICES = [
+  HeaderMenuService,
+  ReviewsService,
+  DescriptionsService,
+];
+
+@NgModule({
+  imports: [
+    CommonModule,
+  ],
+  providers: [
+    ...SERVICES,
+  ],
+})
+export class DataModule {
+  static forRoot(): ModuleWithProviders {
+    return <ModuleWithProviders>{
+      ngModule: DataModule,
+      providers: [
+        ...SERVICES,
+      ],
+    };
+  }
+}

docs/app/@core/data/service/descriptions.service.ts

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+import { Injectable } from '@angular/core';
+import { of as observableOf,  Observable } from 'rxjs';
+
+export class Descriptions {
+  icon: string;
+  title: string;
+  description: string;
+}
+
+@Injectable()
+export class DescriptionsService {
+
+  /* tslint:disable:max-line-length */
+  private descriptions: Descriptions[] = [
+    {
+      icon: 'layout-outline',
+      title: 'Efficient',
+      description: 'Packed with a huge number of handcrafted UI components, charts, maps, editors, tables, and much more, so that developers can focus on business needs',
+    },
+    {
+      icon: 'smartphone-outline',
+      title: 'Mobile first',
+      description: 'Looks stunning on every screen size and is optimized to bring the large-screen experience from desktop to mobile',
+    },
+    {
+      icon: 'color-palette-outline',
+      title: 'Сustomizable',
+      description: 'With 3 themes, 2 dashboards, and outstanding UI architecture, it’s easy to change the themes and find the right fit for your company',
+    },
+    {
+      icon: 'heart-outline',
+      title: 'Updated and supported',
+      description: 'Continuous updates and fixes from the development team to keep your tech up to date. The friendly and active community support team are ready to guide you through your challenges',
+    },
+  ];
+  /* tslint:enable:max-line-length */
+
+  getDescriptions(): Observable<Descriptions[]> {
+    return observableOf(this.descriptions);
+  }
+}

docs/app/@core/data/service/header-menu.service.ts

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+import { Injectable } from '@angular/core';
+import { of as observableOf,  Observable } from 'rxjs';
+
+import { NbMenuItem } from '@nebular/theme';
+
+@Injectable()
+export class HeaderMenuService {
+
+  private headerMenu: NbMenuItem[] = [
+    {
+      title: 'Home',
+      link: '/',
+    },
+    {
+      title: 'Docs',
+      link: '/docs',
+    },
+  ];
+
+  getHeaderMenu(): Observable<NbMenuItem[]> {
+    return observableOf(this.headerMenu);
+  }
+}

docs/app/@core/data/service/reviews.service.ts

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+import { Injectable } from '@angular/core';
+import { of as observableOf,  Observable } from 'rxjs';
+
+export class Review {
+  avatar: string;
+  firstName: string;
+  lastName: string;
+  socialIcon: string;
+  review: string;
+  link: string;
+}
+
+@Injectable()
+export class ReviewsService {
+
+  /* tslint:disable:max-line-length */
+  private reviews: Review[] = [
+    {
+      avatar: 'assets/img/avatars/1.png',
+      firstName: 'Marcin',
+      lastName: 'Masiorski',
+      socialIcon: 'facebook',
+      review: 'Awesome template! You are doing great job! Regards.',
+      link: 'https://www.facebook.com/pg/akveo/reviews/?ref=page_internal',
+    },
+    {
+      avatar: 'assets/img/avatars/2.png',
+      firstName: 'Rashid',
+      lastName: 'Thompson',
+      socialIcon: 'facebook',
+      review: 'I just want to say you have the best admin template I have seen so far as a new developer (Trust me I have searched).',
+      link: 'https://www.facebook.com/pg/akveo/reviews/?ref=page_internal',
+    },
+    {
+      avatar: 'assets/img/avatars/3.png',
+      firstName: 'Yuriy',
+      lastName: 'Marshall',
+      socialIcon: 'facebook',
+      review: 'Thanks for free angular theme! Design and file/system structure is on high level! Love you, Akveo!)',
+      link: 'https://www.facebook.com/pg/akveo/reviews/?ref=page_internal',
+    },
+    {
+      avatar: 'assets/img/avatars/4.png',
+      firstName: 'Kenneth',
+      lastName: 'Reis',
+      socialIcon: 'facebook',
+      review: 'Nice people working hard for high quality projects. Love you guys!',
+      link: 'https://www.facebook.com/pg/akveo/reviews/?ref=page_internal',
+    },
+    {
+      avatar: 'assets/img/avatars/5.png',
+      firstName: 'Renato',
+      lastName: 'Oliveira Silva',
+      socialIcon: 'facebook',
+      review: 'Great company and great projects',
+      link: 'https://www.facebook.com/pg/akveo/reviews/?ref=page_internal',
+    },
+    {
+      avatar: 'assets/img/avatars/6.png',
+      firstName: 'Mohammed',
+      lastName: 'Benyakoub',
+      socialIcon: 'facebook',
+      review: 'That one of the best open source software - Product I have ever seen',
+      link: 'https://www.facebook.com/pg/akveo/reviews/?ref=page_internal',
+    },
+  ];
+  /* tslint:enable:max-line-length */
+
+  getReviews(): Observable<Review[]> {
+    return observableOf(this.reviews);
+  }
+}

docs/app/@core/module-import-guard.ts

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+/**
+ * @license
+ * Copyright Akveo. All Rights Reserved.
+ * Licensed under the MIT License. See License.txt in the project root for license information.
+ */
+
+export function throwIfAlreadyLoaded(parentModule: any, moduleName: string) {
+  if (parentModule) {
+    throw new Error(`${moduleName} has already been loaded. Import Core modules in the AppModule only.`);
+  }
+}