import { Component } from '@angular/core';
import { Http, Response } from "@angular/http";
import { CompleterService, CompleterData } from 'ng2-completer';
import { Observable } from 'rxjs/Observable';
import 'rxjs/Rx';
import { CustomData } from './custom.data'


@Component({
  selector: 'my-app',
  template: `<h1>Search seinfeld episodes</h1>
            <p>limited to 5 results</p>
            <ng2-completer [(ngModel)]="searchStr" [datasource]="datasource" [minSearchLength]="0" [clearSelected]="true" (selected)="onSelected($event)"></ng2-completer>
            <p>Selected: {{selectedEpisode}}</p>
            `,
  styles: [`:host >>> .completer-dropdown {
              overflow-y: auto;
              max-height: 100px;
            }`]
})
export class AppComponent { 
  protected searchStr: string;
  protected datasource: CompleterData;
  protected selectedEpisode: string;
  
  constructor(http: Http) {
    this.datasource = new CustomData(http);
  }
  
  protected onSelected(item: CompleterItem) {
    this.selectedEpisode = item? item.title: "";
  }
}
<!DOCTYPE html>
<html>
  <head>
    <title>Ng2-completer demo</title>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <style>
      body {color:#369;font-family: Arial,Helvetica,sans-serif;}
    </style>

    <!-- Polyfills for older browsers -->
    <script src="https://unpkg.com/core-js/client/shim.min.js"></script>

    <script src="https://unpkg.com/zone.js@0.7.4?main=browser"></script>
    <script src="https://unpkg.com/reflect-metadata@0.1.8"></script>
    <script src="https://unpkg.com/systemjs@0.19.39/dist/system.src.js"></script>

    <script> window.autoBootstrap = true; </script>

    <script src="./system.config.js"></script>
    <script>
      System.import('app').catch(function(err){ console.error(err); });
    </script>
  </head>

  <body>
    <my-app>Loading app...</my-app>
  </body>

</html>
/**
 * WEB ANGULAR VERSION
 * (based on systemjs.config.js in angular.io)
 * System configuration for Angular samples
 * Adjust as necessary for your application needs.
 */
(function (global) {
  System.config({
    // DEMO ONLY! REAL CODE SHOULD NOT TRANSPILE IN THE BROWSER
    transpiler: 'ts',
    typescriptOptions: {
      // Copy of compiler options in standard tsconfig.json
      "target": "es5",
      "module": "commonjs",
      "moduleResolution": "node",
      "sourceMap": true,
      "emitDecoratorMetadata": true,
      "experimentalDecorators": true,
      "noImplicitAny": true,
      "suppressImplicitAnyIndexErrors": true
    },
    meta: {
      'typescript': {
        "exports": "ts"
      }
    },
    paths: {
      // paths serve as alias
      'npm:': 'https://unpkg.com/'
    },
    // map tells the System loader where to look for things
    map: {
      // our app is within the app folder
      app: 'app',

      // angular bundles
      '@angular/core': 'npm:@angular/core/bundles/core.umd.js',
      '@angular/common': 'npm:@angular/common/bundles/common.umd.js',
      '@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js',
      '@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js',
      '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
      '@angular/http': 'npm:@angular/http/bundles/http.umd.js',
      '@angular/router': 'npm:@angular/router/bundles/router.umd.js',
      '@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',
      '@angular/upgrade': 'npm:@angular/upgrade/bundles/upgrade.umd.js',
      '@angular/upgrade/static': 'npm:@angular/upgrade/bundles/upgrade-static.umd.js',

      // other libraries
      'rxjs':                      'npm:rxjs@5.4.3',
      'angular-in-memory-web-api': 'npm:angular-in-memory-web-api/bundles/in-memory-web-api.umd.js',
      'ts':                        'npm:plugin-typescript@4.0.10/lib/plugin.js',
      'typescript':                'npm:typescript@2.0.3/lib/typescript.js',
      'ng2-completer':             'npm:ng2-completer',

    },
    // packages tells the System loader how to load when no filename and/or no extension
    packages: {
      app: {
        main: './main.ts',
        defaultExtension: 'ts'
      },
      rxjs: {
        defaultExtension: 'js'
      }
    }
  });

  if (global.autoBootstrap) { bootstrap(); }

  // Bootstrap with a default `AppModule`
  // ignore an `app/app.module.ts` and `app/main.ts`, even if present
  // This function exists primarily (exclusively?) for the QuickStart
  function bootstrap() {

    // Stub out `app/main.ts` so System.import('app') doesn't fail if called in the index.html
    System.set(System.normalizeSync('app/main.ts'), System.newModule({ }));

    // bootstrap and launch the app (equivalent to standard main.ts)
    Promise.all([
      System.import('@angular/platform-browser-dynamic'),
      getAppModule()
    ])
    .then(function (imports) {
      var platform = imports[0];
      var app      = imports[1];
      platform.platformBrowserDynamic().bootstrapModule(app.AppModule);
    })
    .catch(function(err){ console.error(err); });
  }

  // Make the default AppModule
  // returns a promise for the AppModule
  function getAppModule() {
    return Promise.all([
      System.import('@angular/core'),
      System.import('@angular/platform-browser'),
      System.import('app/app.component'),
      System.import('@angular/forms'),
      System.import('@angular/http'),
      System.import('ng2-completer')
    ])
    .then(function (imports) {

      var core    = imports[0];
      var browser = imports[1];
      var appComp = imports[2].AppComponent;
      var forms   = imports[3];
      var http   = imports[4];
      var ng2CompleterModule = imports[5].Ng2CompleterModule;

      var AppModule = function() {}

      AppModule.annotations = [
        new core.NgModule({
          imports:      [ browser.BrowserModule, forms.FormsModule, http.HttpModule, ng2CompleterModule ],
          declarations: [ appComp ],
          bootstrap:    [ appComp ]
        })
      ]
      return {AppModule: AppModule};
    })
  }
})(this);

/*
Copyright 2016 Google Inc. All Rights Reserved.
Use of this source code is governed by an MIT-style license that
can be found in the LICENSE file at http://angular.io/license
*/
import { Http, Response } from "@angular/http";
import { Subject } from "rxjs/Subject";

import { CompleterData, CompleterItem } from "../src";

export class CustomData extends Subject<CompleterItem[]> implements CompleterData {
    constructor(private http: Http) {
        super();
    }
    public search(term: string): void {
        this.http.get("https://mysafeinfo.com/api/data?list=seinfeldepisodes&format=json&nm=" + term + ",contains")
            .map((res: Response) => {
                // Convert the result to CompleterItem[]
                let data = res.json();
                data = data.slice(0,5);
                let matches: CompleterItem[] = data.map((episode: any) => this.convertToItem(episode));
                this.next(matches);
            })
            .subscribe();
    }

    public cancel() {
        // Handle cancel
    }

    public convertToItem(data: any): CompleterItem {
       if (!data) {
         return null;
       }
       
        // data will be string if an initial value is set
        return {
            title: typeof data === "string" ? data : data.nm
        } as CompleterItem;
    }
}