From 4cb3f5d8ba5251aec225634b512c8cce8fa7e8a5 Mon Sep 17 00:00:00 2001
From: Sebastian Kippe <sebastian@kip.pe>
Date: Tue, 6 Jun 2017 19:05:42 +0200
Subject: [PATCH] Use profile data from IPFS for contributor models

---
 app/components/contributor-list/template.hbs |  2 +-
 app/models/contributor.js                    | 60 ++++++++++++++++++++
 app/services/ipfs.js                         |  3 +
 app/services/kredits.js                      | 10 ++--
 4 files changed, 69 insertions(+), 6 deletions(-)

diff --git a/app/components/contributor-list/template.hbs b/app/components/contributor-list/template.hbs
index dae31e5..6d6f80f 100644
--- a/app/components/contributor-list/template.hbs
+++ b/app/components/contributor-list/template.hbs
@@ -3,7 +3,7 @@
     <tr class="{{if contributor.isCurrentUser 'current-user'}}" {{action "toggleContributorInfo" contributor}}>
       <td class="person">
         <img class="avatar" src={{contributor.avatarURL}}>
-        {{contributor.github_username}}
+        {{contributor.name}}
       </td>
       <td class="kredits">
         <span class="amount">{{contributor.kredits}}</span>
diff --git a/app/models/contributor.js b/app/models/contributor.js
index fcb859d..c591edc 100644
--- a/app/models/contributor.js
+++ b/app/models/contributor.js
@@ -1,5 +1,9 @@
 import Ember from 'ember';
 
+const {
+  isPresent,
+} = Ember;
+
 export default Ember.Object.extend({
 
   address: null,
@@ -18,6 +22,56 @@ export default Ember.Object.extend({
     return `https\:\/\/avatars2.githubusercontent.com/u/${this.get('github_uid')}?v=3&s=128`;
   }.property('github_uid'),
 
+
+  /**
+   * Loads the contributor's profile data from IPFS and sets local instance
+   * properties from it
+   *
+   * @method
+   * @public
+   */
+  loadProfile(ipfs) {
+    let promise = new Ember.RSVP.Promise((resolve, reject) => {
+      ipfs.getFile(this.get('ipfsHash')).then(content => {
+        let profileJSON = JSON.parse(content);
+        let profile = Ember.Object.create(profileJSON);
+
+        this.set('name', profile.get('name'));
+
+        let accounts = profile.get('accounts');
+        let github   = accounts.findBy('site', 'github.com');
+        let wiki     = accounts.findBy('site', 'wiki.kosmos.org');
+
+        if (isPresent(github)) {
+          this.setProperties({
+            github_username: github.username,
+            github_uid: github.uid,
+          });
+        }
+        if (isPresent(wiki)) {
+          this.setProperties({
+            wiki_username: wiki.username
+          });
+        }
+
+        Ember.Logger.debug('[contributor] loaded contributor profile', profile);
+        resolve();
+      }).catch((err) => {
+        Ember.Logger.error('[contributor] error trying to load contributor profile', this.get('ipfsHash'), err);
+        reject(err);
+      });
+    });
+
+    return promise;
+  },
+
+  /**
+   * Creates a JSON-LD object of the contributor, according to
+   * https://github.com/67P/kosmos-schemas/blob/master/schemas/contributor.json
+   *
+   * @method
+   * @public
+   */
   toJSON() {
     let contributor = {
       "@context": "https://schema.kosmos.org",
@@ -49,6 +103,12 @@ export default Ember.Object.extend({
     return contributor;
   },
 
+  /**
+   * Returns the JSON-LD representation of the model as a string
+   *
+   * @method
+   * @public
+   */
   serialize() {
     return JSON.stringify(this.toJSON());
   }
diff --git a/app/services/ipfs.js b/app/services/ipfs.js
index 453a005..6ef5a33 100644
--- a/app/services/ipfs.js
+++ b/app/services/ipfs.js
@@ -26,6 +26,9 @@ export default Ember.Service.extend({
   getFile(hash) {
     return this.get('ipfs').cat(hash, { buffer: true }).then(res => {
       return res.toString();
+    }, err => {
+      Ember.Logger.error('[ipfs] error trying to fetch file', hash, err);
+      return err;
     });
   }
 
diff --git a/app/services/kredits.js b/app/services/kredits.js
index aca0665..f5d9396 100644
--- a/app/services/kredits.js
+++ b/app/services/kredits.js
@@ -101,17 +101,17 @@ export default Service.extend({
       this.getValueFromContract('kreditsContract', 'contributorAddresses', i).then(address => {
         this.getValueFromContract('kreditsContract', 'contributors', address).then(person => {
           this.getValueFromContract('tokenContract', 'balanceOf', address).then(balance => {
-            Ember.Logger.debug('person', person);
             let contributor = Contributor.create({
               address: address,
-              github_username: person[1],
-              github_uid: person[0],
               ipfsHash: person[2],
               kredits: balance.toNumber(),
               isCurrentUser: this.get('currentUserAccounts').includes(address)
             });
-            Ember.Logger.debug('[kredits] contributor', contributor);
-            resolve(contributor);
+
+            contributor.loadProfile(this.get('ipfs')).then(
+              () => resolve(contributor),
+              err => reject(err)
+            );
           });
         });
       }).catch(err => reject(err));