From 34264db89575ee2759263c21733b7edca2712cc8 Mon Sep 17 00:00:00 2001
From: Daniel Lugo <danlugo92@gmail.com>
Date: Sat, 9 Jan 2021 16:25:55 -0400
Subject: [PATCH] typings

---
 utils/lightningServices/lightning-services.js |  3 +++
 utils/lightningServices/types.ts              | 25 +++++++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/utils/lightningServices/lightning-services.js b/utils/lightningServices/lightning-services.js
index 6f61e0d9..71ef98d9 100644
--- a/utils/lightningServices/lightning-services.js
+++ b/utils/lightningServices/lightning-services.js
@@ -74,6 +74,9 @@ class LightningServices {
     }
   }
 
+  /**
+   * @returns {import('./types').Services}
+   */
   getServices() {
     return this.services
   }
diff --git a/utils/lightningServices/types.ts b/utils/lightningServices/types.ts
index f8e77d81..4b8b5781 100644
--- a/utils/lightningServices/types.ts
+++ b/utils/lightningServices/types.ts
@@ -106,3 +106,28 @@ export interface SendPaymentInvoiceParams {
   payment_request: string
   timeoutSeconds?: number
 }
+
+type StreamListener = (data: any) => void
+
+/**
+ * Caution: Not all methods return an stream.
+ */
+interface LightningStream {
+  on(ev: 'data' | 'end' | 'error' | 'status', listener: StreamListener): void
+}
+
+type LightningCB = (err: Error, data: Record<string, any>) => void
+
+type LightningMethod = (
+  args: Record<string, any>,
+  cb?: LightningCB
+) => LightningStream
+
+/**
+ * Makes it easier for code calling services.
+ */
+export interface Services {
+  lightning: Record<string, LightningMethod>
+  walletUnlocker: Record<string, LightningMethod>
+  router: Record<string, LightningMethod>
+}