Improve balance display

inc/myco.js

@@ -338,12 +338,16 @@ display_balance=function(group) {
   bal=group.balance();
   tbody=$($('#display_balance_modal tbody')[0]);
   tbody.html('');
-  sum=0;
-  for (c in bal) {
-    tbody.append('<tr><td>'+c+'</td><td>'+bal[c]+' €</td></tr>');
-    sum+=bal[c];
+  for (c in bal['balance']) {
+    if(bal['balance'][c]['diff']<0) {
+      diff='<td class="negative">'+bal['balance'][c]['diff'].toFixed(2)+' €</td>';
+    }
+    else {
+      diff='<td><span class="glyphicon glyphicon-thumbs-up"></span></td>';
+    }
+    tbody.append('<tr><td>'+c+'</td><td>'+bal['balance'][c]['total']+' €</td>'+diff+'</tr>');
   }
-  $('#display_balance_modal #total-value').html(sum+' €');
+  $('#display_balance_modal #total-value').html(bal.sum.toFixed(2)+' €');
   $('#display_balance_modal').modal('show');
 }
 

inc/myco_objects.js

@@ -174,17 +174,39 @@ function Group(name,data) {
    * Balance
    */
   this.balance=function() {
-    ret={}
+    total={}
+    min=-1;
+    max=0;
     for (idx in this.contributors) {
-      sum=0;
+      var sum=0;
       c=this.contributors[idx].name;
       cl=this.contributionsByContributorName(c);
       for (idc in cl) {
         sum+=cl[idc].cost;
       }
-      ret[c]=sum;
+      if (min==-1 || min>sum) {
+          min=sum;
+        }
+      if(max<sum) {
+        max=sum;
+      }
+      total[c]=sum;
     }
-    return ret;
+    balance={}
+    var sum=0;
+    for (c in total) {
+      balance[c]={
+        'total': total[c],
+        'diff': total[c]-max,
+      }
+      sum=sum+total[c];
+    }
+    return {
+      'balance': balance,
+      'sum': sum,
+      'min': min,
+      'max': max
+    };
   }
 
   /*

index.html

@@ -293,13 +293,17 @@ body{
       <div class="modal-body">
         <table class="table table-striped">
           <thead>
-            <tr><th>Participant</th><th>Participation</th></tr>
+            <tr>
+              <th>Participant</th>
+              <th>Participation</th>
+              <th>&nbsp;</th>
+            </tr>
           </thead>
           <tbody></tbody>
           <tfoot>
             <tr>
               <td id='total-label'>Total :</td>
-              <td id='total-value'></td>
+              <td colspan='2' id='total-value'></td>
             </tr>
           </tfoot>
         </table>