From 79814e10faf42e800918a2b097b9ef9cd8836a87 Mon Sep 17 00:00:00 2001
From: Matias Alejo Garcia <ematiu@gmail.com>
Date: Wed, 19 Feb 2014 21:47:00 -0300
Subject: [PATCH] add API call to return unspent outputs for an address

---
 app/controllers/addresses.js | 44 ++++++++++++++++++++++++------------
 app/models/Address.js        | 29 ++++++++++++++++++++++++
 config/routes.js             |  4 ++--
 3 files changed, 61 insertions(+), 16 deletions(-)

diff --git a/app/controllers/addresses.js b/app/controllers/addresses.js
index 95e49c1d..c7347c06 100644
--- a/app/controllers/addresses.js
+++ b/app/controllers/addresses.js
@@ -7,32 +7,48 @@
 var Address = require('../models/Address'),
     common      = require('./common');
 
-exports.address = function(req, res, next, addr) {
-
-
+var getAddr = function(req, res, next) {
   var a;
   try {
+    var addr = req.param('addr');
     a = Address.new(addr);
   } catch (e) {
-    return common.handleErrors({message: 'Invalid address:' + e.message, code: 1}, res, next);
+    common.handleErrors({message: 'Invalid address:' + e.message, code: 1}, res, next);
+    return null;
   }
+  return a;
+};
 
-  a.update(function(err) {
-      if (err)
+
+exports.show = function(req, res, next) {
+  var a = getAddr(req, res, next);
+  
+  if (a) 
+    a.update(function(err) {
+      if (err) {
         return common.handleErrors(err, res);
+      }
       else  {
-        req.address = a;
-        return next();
+        return res.jsonp(a);
       }
     });
 };
 
 
-/**
- */
-exports.show = function(req, res) {
-  if (req.address) {
-    res.jsonp(req.address);
-  }
+
+exports.unspents = function(req, res, next) {
+  var a = getAddr(req, res, next);
+  
+  if (a) 
+    a.getUnspents(function(err, unspents) {
+      if (err)
+        return common.handleErrors(err, res);
+      else  {
+console.log('[addresses.js.47]', unspents); //TODO
+        return res.jsonp(unspents);
+      }
+    });
 };
 
+
+
diff --git a/app/models/Address.js b/app/models/Address.js
index 9c804524..7dcca559 100644
--- a/app/models/Address.js
+++ b/app/models/Address.js
@@ -69,6 +69,35 @@ function spec() {
 
   }
 
+
+  Address.prototype.getUnspents = function(next) {
+    var self = this;
+console.log('[Address.js.74:this:]'); //TODO
+    if (!self.addrStr) return next();
+
+    var ret  = [];
+    var db   = new TransactionDb();
+
+    db.fromAddr(self.addrStr, function(err,txOut){
+      if (err) return next(err);
+
+      txOut.forEach(function(txItem){
+        if (!txItem.spentTxId) {
+          ret.push({
+            address: self.addrStr,
+            txid: txItem.txid,
+            vout: txItem.index,
+            ts: txItem.ts,
+            amount: txItem.value_sat / BitcoreUtil.COIN,
+// TODO => actually 1+
+//            confirmations: 1, 
+          });
+        }
+      });
+      return next(err,ret);
+    });
+  };
+
   Address.prototype.update = function(next) {
     var self = this;
     if (!self.addrStr) return next();
diff --git a/config/routes.js b/config/routes.js
index 44a3591f..f480d7e2 100644
--- a/config/routes.js
+++ b/config/routes.js
@@ -21,8 +21,8 @@ module.exports = function(app) {
 
   // Address routes
   var addresses = require('../app/controllers/addresses');
-  app.get('/api/addr/:addr', addresses.show);
-  app.param('addr', addresses.address);
+//  app.get('/api/addr/:addr', addresses.show);
+  app.get('/api/addr/:addr/unspents', addresses.unspents);
 
   // Status route
   var st = require('../app/controllers/status');