RenatoFranca · November 30, 2020 12:37 · Nov 30, 2020
diff --git a/sertive.ts b/sertive.ts
@@ -0,0 +1,154 @@
+// Angular
+import { Injectable } from '@angular/core';
+import { Http, Response, Headers, RequestOptions } from '@angular/http';
+import { URLSearchParams } from '@angular/http';
+import { Observable } from 'rxjs/Observable';
+import { environment } from '../../environments/environment';
+import 'rxjs/add/operator/catch';
+import 'rxjs/add/operator/map';
+// Entidades
+import { Grupo } from '../_models/grupo';
+
+@Injectable()
+export class GrupoService {
+    // Variáveis gerais
+    headers: Headers;
+    options: RequestOptions;
+    token = environment.prefix + 'token';
+
+    private paginaUrl = environment.apiUrl + '/grupos';
+
+    /**
+     * Construtor
+     *
+     * @param http
+     */
+    constructor(private http: Http) {
+    }// end constructor()
+
+    /**
+     * Converte o retorno da API para json
+     *
+     * @param res
+     * @returns {any|{}}
+     */
+    extractData(res: Response) {
+        const body = res.json();
+        return body || { };
+    }// end extractData()
+
+    /**
+     * Adiciona um grupo
+     *
+     * @param {string} nome
+     *
+     * @returns {Observable<any | {}>}
+     */
+    adicionar(nome: string, permissoes: any) {
+        const body = new URLSearchParams();
+        body.set('nome', nome);
+        body.set('permissoes', permissoes);
+        const headers = new Headers();
+        headers.append('token', localStorage.getItem(this.token));
+        const options = new RequestOptions({ headers: headers });
+
+        return this.http.post(this.paginaUrl, body, options)
+            .map(this.extractData);
+    }// end adicionar()
+
+    /**
+     * Deleta um grupo
+     *
+     * @param {string} slug
+     *
+     * @returns {Observable<Grupo>}
+     */
+    deletar(slug:string): Observable<Grupo> {
+        const headers = new Headers();
+        headers.append('token', localStorage.getItem(this.token));
+        const options = new RequestOptions({ headers: headers });
+
+        return this.http.delete(this.paginaUrl + '/' + slug, options)
+            .map(this.extractData);
+    }// end deletar()
+
+    /**
+     * Edita um grupo
+     *
+     * @param {string} nome
+     * @param {string} slug
+     *
+     * @returns {Observable<any | {}>}
+     */
+    editar(id: number, nome: string, permissoes: any, slug: string) {
+        console.log(slug);
+        const body = new URLSearchParams();
+        body.set('id', id.toString());
+        body.set('nome', nome);
+        body.set('permissoes', permissoes);
+        body.set('slug', slug);
+        const headers = new Headers();
+        headers.append('token', localStorage.getItem(this.token));
+        const options = new RequestOptions({ headers: headers });
+
+        return this.http.put(this.paginaUrl + '/' + slug, body, options)
+            .map(this.extractData);
+    }// end editar()
+
+    /**
+     * Consulta um grupo
+     *
+     * @param slug
+     * @returns {Observable<R>}
+     */
+    ler(slug: string): Observable<Grupo> {
+        return this.http.get(this.paginaUrl + '/' + slug)
+            .map(this.extractData)
+            .catch(this.handleError);
+    }// end ler()
+
+    /**
+     * Lista os grupos
+     *
+     * @param {number} quantidade
+     * @param {string} ordem
+     * @param {number} pagina
+     *
+     * @returns {Observable<Grupo[]>}
+     */
+    listar(quantidade: number = 10, ordem: string = 'desc', pagina: number = 1): Observable<Grupo[]> {
+        return this.http.get(this.paginaUrl + '?ordem=' + ordem + '&quantidade=' + quantidade + '&pagina=' + pagina)
+            .map(this.extractData)
+            .catch(this.handleError);
+    }// end listar()
+
+    /**
+     * Consulta o total de grupos cadastrados
+     *
+     * @returns {Observable<Grupo[]>}
+     */
+    lerTotal(): Observable<Grupo[]> {
+        return this.http.get(this.paginaUrl + '?total')
+            .map(this.extractData)
+            .catch(this.handleError);
+    }// end lerTotal()
+
+    /**
+     * Manipula os erros e retorna um json
+     *
+     * @param error
+     * @returns {any}
+     */
+    private handleError (error: Response | any) {
+        let errMsg: string;
+        if (error instanceof Response) {
+            const body = error.json() || '';
+            const err = body.error || JSON.stringify(body);
+            errMsg = `${error.status} - ${error.statusText || ''} ${err}`;
+        } else {
+            errMsg = error.message ? error.message : error.toString();
+        }
+        return Observable.throw(errMsg);
+    }// end handleError()
+
+}// end GrupoService