toggle on auth api also take timeout from query params

packages/serverless/functions/api/door/auth.js

@@ -35,21 +35,45 @@ exports.handler = async function(context, event, callback) {
     method: "PIN",
     userAgent: event.request.headers['user-agent'],
   };
-  const timeout = config.Item.timeout.N;
 
-  await client.send(ddb.setLockStatusCommand(door, timeout, fingerprint))
-    .then(async (item) => {    
-      response
-        .setStatusCode(200)
-        .appendHeader('Content-Type', 'application/json')
-        .setBody({ msg: `Opened the door "${door}" for ${timeout}s` });
-    }).catch((e) => {
-      console.log(e);
-      response
-        .setStatusCode(500)
-        .appendHeader('Content-Type', 'application/json')
-        .setBody({ err: e });
+  // take timeout from the query string
+  const timeout = event.timeout ? parseInt(event.timeout) : config.Item.timeout.N;
+
+  // check lock status if locked, then unlock. If unlocked then lock
+  await client.send(ddb.getLockStatusCommand(door))
+    .then(async (lock) => {
+      const isOpen = ddb.isLockOpen(lock);
+
+      if (isOpen) {
+        const fingerprint = JSON.parse(lock.Item.fingerprint.S);
+
+        response
+          .setStatusCode(200)
+          .appendHeader('Content-Type', 'application/json')
+          .setBody({
+            status: "CLOSED",
+            fingerprint,
+          });
+
+        await client.send(ddb.clearLockStatusCommand(lock));
+        return;
+      }
+
+      await client.send(ddb.setLockStatusCommand(door, timeout, fingerprint))
+        .then(async (item) => {    
+          response
+            .setStatusCode(200)
+            .appendHeader('Content-Type', 'application/json')
+            .setBody({ msg: `Opened the door "${door}" for ${timeout}s` });
+        }).catch((e) => {
+          console.log(e);
+          response
+            .setStatusCode(500)
+            .appendHeader('Content-Type', 'application/json')
+            .setBody({ err: e });
+        });
     });
+
   await client.destroy();
   return callback(null, response);
 };