1 files changed, 86 insertions, 0 deletions
diff --git a/src/app/services/post.service.ts b/src/app/services/post.service.ts
new file mode 100644
index 0000000..7b2a539
--- /dev/null
+++ b/src/app/services/post.service.ts
@@ -0,0 +1,86 @@
+import { HttpClient, HttpHeaders, HttpParams } from '@angular/common/http';
+import { Injectable } from '@angular/core';
+import * as FormData from 'form-data';
+import { Guid } from 'guid-typescript';
+import { Observable } from 'rxjs';
+import { Post } from 'src/models/post';
+import { AppConstants } from '../app-constants.module';
+import { TokenService } from './token.service';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class PostService {
+  constructor(private _http: HttpClient, private _tokenService: TokenService)
+  { }
+
+  getDefaultPost(): Post {
+    return new Post(Guid.createEmpty(), 'Gosho', 'Trapov', 'gosho_trapov', 'Your opinion on my idea?', new Date(), [], []);
+  }
+
+  /* Requests from session storage */
+
+  createPostWithSessionStorageRequest(postMessage: string, files: File[]): Observable<object> {
+    const userId = this._tokenService.getUserIdFromSessionStorageToken();
+    const token = this._tokenService.getTokenFromSessionStorage();
+
+    return this.createPostRequest(userId, token, postMessage, files);
+  }
+
+  putPostWithSessionStorageRequest(postId: Guid, newMessage: string, posts: File[]): Observable<object> {
+    const userId = this._tokenService.getUserIdFromSessionStorageToken();
+    const token = this._tokenService.getTokenFromSessionStorage();
+
+    return this.putPostRequest(userId, token, postId, newMessage, posts);
+  }
+
+  deletePostWithSessionStorage(postId: Guid): Observable<object> {
+    const token = this._tokenService.getTokenFromSessionStorage();
+
+    return this.deletePostRequest(postId, token);
+  }
+
+  /* Post requests */
+
+  createPostRequest(userId: Guid, authToken: string, postMessage: string, files: File[]): Observable<object> {
+    const form = new FormData();
+    form.append('message', postMessage);
+    for (const file of files) {
+      form.append('files', file, file.name);
+    }
+    const options = {
+      params: new HttpParams().set('UserId', userId.toString()),
+      headers: new HttpHeaders().set('Authorization', 'Bearer ' + authToken)
+    };
+    return this._http.post(AppConstants.API_POST_URL, form, options);
+  }
+
+  getPostRequest(id: Guid): Observable<object> {
+    const options = {
+      params: new HttpParams().set('Id', id.toString())
+    };
+    return this._http.get(AppConstants.API_POST_URL, options);
+  }
+
+  putPostRequest(userId: Guid, authToken: string, postId: Guid, newMessage: string, files: File[]): Observable<object> {
+    const form = new FormData();
+    form.append('postId', postId);
+    form.append('newMessage', newMessage);
+    for (const file of files) {
+      form.append('files', file, file.name);
+    }
+    const options = {
+      params: new HttpParams().set('UserId', userId.toString()),
+      headers: new HttpHeaders().set('Authorization', 'Bearer ' + authToken)
+    };
+    return this._http.put(AppConstants.API_POST_URL, form, options);
+  }
+
+  deletePostRequest(postId: Guid, authToken: string): Observable<object> {
+    const options = {
+      params: new HttpParams().set('Id', postId.toString()),
+      headers: new HttpHeaders().set('Authorization', 'Bearer ' + authToken)
+    };
+    return this._http.delete(AppConstants.API_POST_URL, options);
+  }
+}