load kredits contract definition from kredits-contracts package

app/services/kredits.js

@@ -3,6 +3,7 @@ import Web3 from 'npm:web3';
 import config from 'kredits-web/config/environment';
 import Contributor from 'kredits-web/models/contributor';
 import Proposal from 'kredits-web/models/proposal';
+import kreditsContracts from 'npm:kredits-contracts';
 
 export default Ember.Service.extend({
 
@@ -10,7 +11,7 @@ export default Ember.Service.extend({
   web3Provided: false, // Web3 provided (using Mist Browser, Metamask et al.)
 
   web3: function() {
-    if (Ember.isPresent(this.get('web3Instance'))) {
+    if (this.get('web3Instance')) {
       return this.get('web3Instance');
     }
 
@@ -22,7 +23,7 @@ export default Ember.Service.extend({
       this.set('web3Provided', true);
     } else {
       Ember.Logger.debug('[kredits] Creating new instance from npm module class');
-      let provider = new Web3.providers.HttpProvider("http://139.59.248.169:8545");
+      let provider = new Web3.providers.HttpProvider(config.web3ProviderUrl);
       web3Instance = new Web3(provider);
     }
 
@@ -33,11 +34,14 @@ export default Ember.Service.extend({
   }.property('web3Instance'),
 
   kreditsContract: function() {
-    // TODO cache this
-    let contract = this.get('web3')
-                       .eth.contract(config.kreditsContract.ABI)
-                       .at(config.kreditsContract.address);
+    if (this.get('kreditsContractInstance')) {
+      return this.get('kreditsContractInstance');
+    }
+
+    let contract = kreditsContracts(this.get('web3'))['Kredits'];
+
     window.Kredits = contract;
+    this.set('kreditsContractInstance', contract);
     return contract;
   }.property('web3'),
 

config/environment.js

@@ -1,6 +1,4 @@
 /* jshint node: true */
-let contracts = require('../vendor/contract-abis');
-
 module.exports = function(environment) {
   var ENV = {
     modulePrefix: 'kredits-web',
@@ -21,15 +19,11 @@ module.exports = function(environment) {
     APP: {
       // Here you can pass flags/options to your application instance
       // when it is created
-    },
-
-    kreditsContract: {
-      ABI: contracts['Kredits'].abi
     }
   };
 
   if (environment === 'development') {
-    ENV.kreditsContract.address = '0x9C68Af50e97f5605402B4C01e7aB836ed7145e8B';
+    ENV.web3ProviderUrl = "http://139.59.248.169:8545";
     // ENV.APP.LOG_RESOLVER = true;
     // ENV.APP.LOG_ACTIVE_GENERATION = true;
     // ENV.APP.LOG_TRANSITIONS = true;

package.json

@@ -36,7 +36,8 @@
     "ember-load-initializers": "^0.5.1",
     "ember-resolver": "^2.0.3",
     "loader.js": "^4.0.10",
-    "web3": "^0.18.2"
+    "web3": "^0.18.2",
+    "kredits-contracts": "67P/kredits-contracts"
   },
   "engines": {
     "node": ">= 0.12.0"