progress for login feature

src/app/component/login/login.component.ts

@@ -3,29 +3,71 @@ import {Router} from "@angular/router";
 import {TranslateService} from "../../service/language/translate.service";
 import {ReadTranslateJsonService} from "../../service/language/readTranslateJson.service";
 import {cookieService} from "../../service/cookie.service";
+import {UserService} from "../../service/http/user.service";
+import {UserEntity} from "../../interface/UserEntity";
 
 @Component({
   selector: 'app-login',
   templateUrl: './login.component.html',
   styleUrls: ['./login.component.css']
 })
-export class LoginComponent implements OnInit{
+export class LoginComponent implements OnInit {
+
+  newUser: { username: string; password: string; } = {username: '', password: ''};
+  username: string = '';
+  users: UserEntity[] | undefined;
+  login: boolean = true;
+  errorCreateUser: boolean = false;
+  errorLogin: boolean = false;
 
   constructor(
     private router: Router,
     private translateService: TranslateService,
     private readTranslationJsonService: ReadTranslateJsonService,
+    private userService: UserService,
     private cookieService: cookieService,
   ) {
   }
 
   ngOnInit(): void {
-
-
+    if (this.cookieService.getUsername() != null) {
+      this.router.navigate(['/home']);
+    }
   }
 
-  submit(username: string, password: string) {
-
+  createNewUser(username: string, password: string) {
+    this.userService.getUsers().subscribe(users => {
+      this.users = users;
+      for (let i = 0; i < this.users.length; i++) {
+        if (this.users[i].username == username) {
+          this.errorCreateUser = true;
+        }
+      }
+      this.newUser.username = username;
+      this.newUser.password = password;
+      this.userService.createUser(this.newUser).subscribe(user => {
+        this.cookieService.setUsername(username);
+        this.router.navigate(['/management']);
+      });
+    });
   }
 
+  loginFunction(username: string, password: string) {
+    this.userService.getUser(username).subscribe(user => {
+      if (user.password == password) {
+        this.cookieService.setUsername(username);
+        this.router.navigate(['/management']);
+      } else {
+        this.errorLogin = true;
+      }
+    });
+  }
+
+  switch() {
+    if (this.login) {
+      this.login = false;
+    } else {
+      this.login = true;
+    }
+  }
 }