functions setup

functions/src/index.ts

@@ -1,8 +1,29 @@
-import * as functions from 'firebase-functions';
+// import * as functions from 'firebase-functions';
+
+// const admin = require('firebase-admin');
+// admin.initializeApp();
 
 // // Start writing Firebase Functions
 // // https://firebase.google.com/docs/functions/typescript
 //
 // export const helloWorld = functions.https.onRequest((request, response) => {
 //  response.send("Hello from Firebase!");
 // });
+
+// export const updateVotes = functions.firestore
+//   .document('candidates/{candidateId}')
+//   .onUpdate((change, context) => {
+//     const candidate = change.after!.data();
+//
+//     // no need to updates votes if there are no votes
+//     if (!candidate || !candidate.votes) return;
+//
+//     let totalVotes = 0;
+//
+//     Object.keys(candidate.votes).forEach(voter => {
+//       totalVotes += candidate.votes[voter];
+//     });
+//
+//     change.after.ref.update({ totalVotes });
+//
+//   });