Merge pull request #42 from 67P/feature/filter-contributors-by-account

Add filter and find by account function to contributors

lib/contracts/contributor.js

@@ -34,6 +34,30 @@ class Contributor extends Base {
       });
   }
 
+  filterByAccount(search) {
+    return this._byAccount(search, 'filter');
+  }
+
+  findByAccount(search) {
+    return this._byAccount(search, 'find');
+  }
+
+  _byAccount(search, method = 'filter') {
+    return this.all().then((contributors) => {
+      const searchEntries = Object.entries(search);
+
+      return contributors[method]((contributor) => {
+        if (!contributor.accounts) { return false; }
+        return contributor.accounts.find((account) => {
+          return searchEntries.every((item) => {
+            let [ key, value ] = item;
+            return account[key] === value;
+          });
+        });
+      });
+    });
+  }
+
   add(contributorAttr, callOptions = {}) {
     let json = ContributorSerializer.serialize(contributorAttr);
     // TODO: validate against schema