Set up deeplink handling for open-plugin deeplink

Summary: Introduce open-plugin deeplink protocol. Implementation steps will follow in rest of this diff

Reviewed By: jknoxville

Differential Revision: D29761801

fbshipit-source-id: 47070c063df2cb3286e418b2fb20f9d8855a95d5

desktop/app/src/dispatcher/handleOpenPluginDeeplink.tsx

@@ -0,0 +1,75 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+import {selectPlugin} from '../reducers/connections';
+import {Store} from '../reducers/index';
+
+type OpenPluginParams = {
+  pluginId: string;
+  client: string | undefined;
+  devices: string[];
+  payload: string | undefined;
+};
+
+export function parseOpenPluginParams(query: string): OpenPluginParams {
+  // 'flipper://open-plugin?plugin-id=graphql&client=facebook&devices=android,ios&chrome=1&payload='
+  const url = new URL(query);
+  const params = new Map<string, string>(url.searchParams as any);
+  if (!params.has('plugin-id')) {
+    throw new Error('Missing plugin-id param');
+  }
+  return {
+    pluginId: params.get('plugin-id')!,
+    client: params.get('client'),
+    devices: params.get('devices')?.split(',') ?? [],
+    payload: params.get('payload')
+      ? decodeURIComponent(params.get('payload')!)
+      : undefined,
+  };
+}
+
+export async function handleOpenPluginDeeplink(store: Store, query: string) {
+  const params = parseOpenPluginParams(query);
+  await verifyLighthouse();
+  await verifyUserIsLoggedIn();
+  await verifyFlipperIsUpToDate();
+  await verifyPluginInstalled();
+  await verifyClient();
+  await verifyPluginInstalled();
+  await openPlugin(store, params);
+}
+function verifyLighthouse() {
+  // TODO:
+}
+
+function verifyUserIsLoggedIn() {
+  // TODO:
+}
+
+function verifyFlipperIsUpToDate() {
+  // TODO:
+}
+
+function verifyPluginInstalled() {
+  // TODO:
+}
+
+function verifyClient() {
+  // TODO:
+}
+
+function openPlugin(store: Store, params: OpenPluginParams) {
+  store.dispatch(
+    selectPlugin({
+      selectedApp: params.client,
+      selectedPlugin: params.pluginId,
+      deepLinkPayload: params.payload,
+    }),
+  );
+}