Fix: aggregation of duplicate values

Fixed: _aggregateAddressSummaryResult to handle duplicate tx data

lib/services/address/index.js

@@ -377,14 +377,42 @@ AddressService.prototype._aggregateAddressSummaryResult = function (tx, address,
   
   var self = this;
 
-    self._setOutputResults(tx, address, result);
-    self._setInputResults(tx, address, result);
+  let output = self._getOutputResults(tx, address);
+  let input = self._getInputResults(tx, address);
+
+  //Since tx with multiple (x) input/output occurances of address will invoke this fn x time(s), (as we are not storing txid and hence cannot check for duplications)
+  //we divide the values by x and aggregate it to result. 
+  //eg. tx with 1 input, 1 output => x=1+1=2.... input_val = 2, output_val = 1. 
+    //the values will be aggregated 2 times, hence, we divide values by x i.e, 2. 
+    //now agg_input_val = 2/2 =1, agg_output_val = 1/2 =0.5 
+    //the fn ll be called x times, hence the total result will be, result=agg*x: input(1*2=2), output(0.5*2=1) 
+
+  let total_count = input.count + output.count;
+  let div_input_val = input.value / total_count,
+      div_output_val = output.value / total_count;
+  
+  //aggregate the result
+  txApperances += 1/total_count;
+
+  totalReceivedSat += div_output_val;
+  balanceSat += div_output_val;
+
+  totalSentSat += div_input_val;
+  balanceSat -= div_output_val;
+
+  if(!tx.confirmations){
+    unconfirmedTxApperances += 1/total_count;
+    unconfirmedBalanceSat += div_output_val;
+    unconfirmedBalanceSat -= div_input_val;
+  }
 
     if (!options.noTxList) {
       if (!result.transactions)  {
         result.transactions = [];
       }
-      result.transactions.push(tx.txid());
+      let txid = tx.txid();
+      if(!result.transactions.includes(txid)) //push txid only if its not in the array
+        result.transactions.push(txid);
     }
 
 }
@@ -411,6 +439,48 @@ AddressService.prototype._getAddressSummaryResult = function(txs, address, resul
   return result;
 };
 
+AddressService.prototype._getOutputResults = function(tx, address) {
+
+  let result = { value: 0, count:0 };
+
+  for(var j = 0; j < tx.outputs.length; j++) {
+
+    var output = tx.outputs[j];
+
+    if (utils.getAddress(output, this._network) !== address) {
+      continue;
+    }
+
+    result.value += output.value;
+    result.count++;
+
+  }
+
+  return result;
+
+};
+
+AddressService.prototype._getInputResults = function(tx, address) {
+  
+  let result = { value: 0, count:0 };
+
+  for(var i = 0; i < tx.inputs.length; i++) {
+
+    var input = tx.inputs[i];
+
+    if (utils.getAddress(input, this._network) !== address) {
+      continue;
+    }
+
+    result.value += tx.__inputValues[i];
+    result.count++;
+
+  }
+
+  return result;
+
+};
+
 AddressService.prototype.getAddressUnspentOutputs = function(address, options, callback) {
 
   var self = this;
@@ -797,13 +867,11 @@ AddressService.prototype._streamAddressSummary = function(address, options, stre
 
       txIdTransformStream.on('end', function() {
         q.drain = next;
-        console.debug(q.drain);
         q.resume();
       });
 
       txIdTransformStream._transform = function(chunk, enc, cb) {
         var txInfo = self._encoding.decodeAddressIndexKey(chunk);
-        self._db.get(chunk, (err, data) => console.debug(data, data.length, data.toString())); //test-check
         q.push({ txid: txInfo.txid, height: txInfo.height }, process_chunk);
         
         cb();