Refactor error handling such that errorMessage lives on the top level state

1 files changed, 26 insertions, 0 deletions

diff --git a/packages/instant/src/util/error_flasher.ts b/packages/instant/src/util/error_flasher.ts
new file mode 100644
index 000000000..068c12fe2
--- /dev/null
+++ b/packages/instant/src/util/error_flasher.ts
@@ -0,0 +1,26 @@
+import { Dispatch } from 'redux';
+
+import { Action, actions } from '../redux/actions';
+
+class ErrorFlasher {
+    private _timeoutId?: number;
+    public flashNewErrorMessage(dispatch: Dispatch<Action>, errorMessage?: string, delayMs: number = 7000): void {
+        this._clearTimeout();
+        // dispatch new message
+        dispatch(actions.setErrorMessage(errorMessage || 'Something went wrong...'));
+        this._timeoutId = window.setTimeout(() => {
+            dispatch(actions.hideError());
+        }, delayMs);
+    }
+    public clearError(dispatch: Dispatch<Action>): void {
+        this._clearTimeout();
+        dispatch(actions.hideError());
+    }
+    private _clearTimeout(): void {
+        if (this._timeoutId) {
+            window.clearTimeout(this._timeoutId);
+        }
+    }
+}
+
+export const errorFlasher = new ErrorFlasher();