1 files changed, 25 insertions, 0 deletions
diff --git a/Timeline/ClientApp/src/app/user/internal-user-service/errors.ts b/Timeline/ClientApp/src/app/user/internal-user-service/errors.ts
new file mode 100644
index 00000000..22e44dd6
--- /dev/null
+++ b/Timeline/ClientApp/src/app/user/internal-user-service/errors.ts
@@ -0,0 +1,25 @@
+export abstract class LoginError extends Error { }
+
+export class BadNetworkError extends LoginError {
+  constructor() {
+    super('Network is bad.');
+  }
+}
+
+export class AlreadyLoginError extends LoginError {
+  constructor() {
+    super('Internal logical error. There is already a token saved. Please call validateUserLoginState first.');
+  }
+}
+
+export class BadCredentialsError extends LoginError {
+  constructor() {
+    super('Username or password is wrong.');
+  }
+}
+
+export class UnknownError extends LoginError {
+  constructor(public internalError?: any) {
+    super('Sorry, unknown error occured!');
+  }
+}