1 files changed, 48 insertions, 0 deletions
diff --git a/Timeline/ClientApp/src/app/http/mock/common.ts b/Timeline/ClientApp/src/app/http/mock/common.ts
new file mode 100644
index 00000000..11939c2b
--- /dev/null
+++ b/Timeline/ClientApp/src/app/http/mock/common.ts
@@ -0,0 +1,48 @@
+import localforage from 'localforage';
+import { SHA1 } from 'crypto-js';
+
+import { HttpNetworkError } from '../common';
+
+export const mockStorage = localforage.createInstance({
+  name: 'mock-backend',
+  description: 'Database for mock back end.',
+  driver: localforage.INDEXEDDB,
+});
+
+export async function sha1(data: Blob): Promise<string> {
+  const s = await new Promise<string>((resolve) => {
+    const fileReader = new FileReader();
+    fileReader.readAsBinaryString(data);
+    fileReader.onload = () => {
+      resolve(fileReader.result as string);
+    };
+  });
+
+  return SHA1(s).toString();
+}
+
+const disableNetworkKey = 'mockServer.disableNetwork';
+
+let disableNetwork: boolean =
+  localStorage.getItem(disableNetworkKey) === 'true' ? true : false;
+
+Object.defineProperty(window, 'disableNetwork', {
+  get: () => disableNetwork,
+  set: (value) => {
+    if (value) {
+      disableNetwork = true;
+      localStorage.setItem(disableNetworkKey, 'true');
+    } else {
+      disableNetwork = false;
+      localStorage.setItem(disableNetworkKey, 'false');
+    }
+  },
+});
+
+export async function mockPrepare(): Promise<void> {
+  if (disableNetwork) {
+    console.warn('Network is disabled for mock server.');
+    throw new HttpNetworkError();
+  }
+  await Promise.resolve();
+}