From 83d18af151be661e54149509b062a6ad06820eab Mon Sep 17 00:00:00 2001
From: Adam Shurson <ashurson@Adams-iMac.local>
Date: Sat, 13 Apr 2019 11:09:46 -0500
Subject: [PATCH] Revise android module to return the biometry type supported
 (instead of boolean)

---
 TouchID.android.js                                           | 4 ++--
 .../main/java/com/rnfingerprint/FingerprintAuthModule.java   | 5 ++++-
 index.d.ts                                                   | 2 +-
 3 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/TouchID.android.js b/TouchID.android.js
index 297c24d2..b88e3c33 100644
--- a/TouchID.android.js
+++ b/TouchID.android.js
@@ -10,8 +10,8 @@ export default {
         (error, code) => {
           return reject(createError(config, error, code));
         },
-        success => {
-          return resolve(true);
+        (biometryType) => {
+          return resolve(biometryType);
         }
       );
     });
diff --git a/android/src/main/java/com/rnfingerprint/FingerprintAuthModule.java b/android/src/main/java/com/rnfingerprint/FingerprintAuthModule.java
index dc54baba..cc0c1de0 100644
--- a/android/src/main/java/com/rnfingerprint/FingerprintAuthModule.java
+++ b/android/src/main/java/com/rnfingerprint/FingerprintAuthModule.java
@@ -59,7 +59,10 @@ public void isSupported(final Callback reactErrorCallback, final Callback reactS
 
         int result = isFingerprintAuthAvailable();
         if (result == FingerprintAuthConstants.IS_SUPPORTED) {
-            reactSuccessCallback.invoke("Is supported.");
+            // TODO: once this package supports Android's Face Unlock,
+            // implement a method to find out which type of biometry
+            // (not just fingerprint) is actually supported
+            reactSuccessCallback.invoke("Fingerprint");
         } else {
             reactErrorCallback.invoke("Not supported.", result);
         }
diff --git a/index.d.ts b/index.d.ts
index 797233a2..581c49f7 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -2,7 +2,7 @@ declare module 'react-native-touch-id' {
     /**
      * The supported biometry type
      */
-    type BiometryType = 'FaceID' | 'TouchID';
+    type BiometryType = 'FaceID' | 'TouchID' | 'Fingerprint';
   
     /**
      * Base config to pass to `TouchID.isSupported` and `TouchID.authenticate`