Switch to contribution token instead of proposals

No vetos yet, and only for collections (not creation).

closes #20

app/controllers/index.js

@@ -1,9 +1,11 @@
 import Controller from '@ember/controller';
-import { alias, filter, filterBy, sort } from '@ember/object/computed';
+import { alias, filter, sort } from '@ember/object/computed';
 import { inject as service } from '@ember/service';
+import { computed } from '@ember/object';
 
 export default Controller.extend({
   kredits: service(),
+  currentBlock: alias('kredits.currentBlock'),
 
   contributors: alias('kredits.contributors'),
   contributorsWithKredits: filter('contributors', function(contributor) {
@@ -12,26 +14,44 @@ export default Controller.extend({
   contributorsSorting: Object.freeze(['balance:desc']),
   contributorsSorted: sort('contributorsWithKredits', 'contributorsSorting'),
 
-  proposals: alias('kredits.proposals'),
-  proposalsOpen: filterBy('proposals', 'isExecuted', false),
-  proposalsClosed: filterBy('proposals', 'isExecuted', true),
-  proposalsSorting: Object.freeze(['id:desc']),
-  proposalsClosedSorted: sort('proposalsClosed', 'proposalsSorting'),
-  proposalsOpenSorted: sort('proposalsOpen', 'proposalsSorting'),
+  contributions: alias('kredits.contributions'),
+  contributionsSorting: Object.freeze(['id:desc']),
+
+  contributionsUnconfirmed: computed('contributions.[]', 'currentBlock', function() {
+    return this.contributions.filter(contribution => {
+      return contribution.confirmedAt < this.currentBlock;
+    });
+  }),
+  contributionsConfirmed: computed('contributions.[]', 'currentBlock', function() {
+    return this.contributions.filter(contribution => {
+      return contribution.confirmedAt >= this.currentBlock;
+    });
+  }),
+
+  contributionsUnconfirmedSorted: sort('contributionsUnconfirmed', 'contributionsSorting'),
+  contributionsConfirmedSorted: sort('contributionsConfirmed', 'contributionsSorting'),
 
   actions: {
-    confirmProposal(proposalId) {
+
+    vetoContribution (/* contributionId */) {
+      // this.kredits.vote(proposalId).then(transaction => {
+      //   window.confirm('Vote submitted to Ethereum blockhain: '+transaction.hash);
+      // });
+    },
+
+    confirmProposal (proposalId) {
       this.kredits.vote(proposalId).then(transaction => {
         window.confirm('Vote submitted to Ethereum blockhain: '+transaction.hash);
       });
     },
 
-    save(contributor) {
+    save (contributor) {
       return this.kredits.addContributor(contributor)
         .then((contributor) => {
           this.contributors.pushObject(contributor);
           return contributor;
         });
     }
+
   }
 });