From 689d5a938d69de7d36af632a9448d53de9a45337 Mon Sep 17 00:00:00 2001
From: Matthias Kretschmann <m@kretschmann.io>
Date: Sun, 17 Jan 2016 16:17:28 +0100
Subject: [PATCH] add Disqus comments functionality, activate on whitepaper

---
 _config.yml                                 |  1 +
 _src/_assets/styles/bigchain.scss           |  1 +
 _src/_assets/styles/bigchain/_comments.scss | 16 +++++++++++
 _src/_includes/scripts.html                 | 30 +++++++++++++++++++++
 _src/_layouts/page.html                     |  9 +++++++
 _src/whitepaper/index.md                    |  2 ++
 6 files changed, 59 insertions(+)
 create mode 100644 _src/_assets/styles/bigchain/_comments.scss

diff --git a/_config.yml b/_config.yml
index 4906596..394b582 100644
--- a/_config.yml
+++ b/_config.yml
@@ -10,6 +10,7 @@ email:
     contact:            contact@bigchaindb.com
 
 twitter:                BigchainDB
+disqus:                 bigchain
 
 
 # Track all the things
diff --git a/_src/_assets/styles/bigchain.scss b/_src/_assets/styles/bigchain.scss
index 0eafdfd..5803bbc 100644
--- a/_src/_assets/styles/bigchain.scss
+++ b/_src/_assets/styles/bigchain.scss
@@ -34,6 +34,7 @@
 
 // Content types
 @import 'bigchain/_content-page';
+@import 'bigchain/_comments';
 
 // specific page styles
 @import 'page-front';
diff --git a/_src/_assets/styles/bigchain/_comments.scss b/_src/_assets/styles/bigchain/_comments.scss
new file mode 100644
index 0000000..da4262c
--- /dev/null
+++ b/_src/_assets/styles/bigchain/_comments.scss
@@ -0,0 +1,16 @@
+//
+// Comments
+// --------------
+// bigchain.io
+//
+
+.comments {
+    margin-bottom: ($spacer * 2);
+
+    .row > h1 {
+        border-bottom: 2px solid $gray-lightest;
+        padding-bottom: $spacer;
+        margin-bottom: ($spacer * 2);
+        text-align: center;
+    }
+}
diff --git a/_src/_includes/scripts.html b/_src/_includes/scripts.html
index 90e1948..b633419 100644
--- a/_src/_includes/scripts.html
+++ b/_src/_includes/scripts.html
@@ -66,3 +66,33 @@ svg4everybody.js
 {% else %}
     <script async src="//www.google-analytics.com/analytics_debug.js"></script>
 {% endif%}
+
+
+<!--
+//
+// Disqus comments
+//
+-->
+{% if page.comments %}
+<script>
+    var disqus_config = function () {
+        this.page.url = '{{ site.url }}{{ page.url }}';
+        this.page.identifier = '{{ page.id }}';
+        this.page.title = '{{ page.title }}';
+    };
+
+    {% if jekyll.environment == "development" %}
+    var disqus_developer = 1;
+    {% endif %}
+
+    (function() {
+        var d = document, s = d.createElement('script');
+
+        s.src = '//{{ site.disqus }}.disqus.com/embed.js';
+
+        s.setAttribute('data-timestamp', +new Date());
+        (d.head || d.body).appendChild(s);
+    })();
+</script>
+<noscript>Please enable JavaScript to view the <a href="https://disqus.com/?ref_noscript" rel="nofollow">comments powered by Disqus.</a></noscript>
+{% endif %}
diff --git a/_src/_layouts/page.html b/_src/_layouts/page.html
index e98bc1a..6d702ec 100644
--- a/_src/_layouts/page.html
+++ b/_src/_layouts/page.html
@@ -24,3 +24,12 @@ layout: base
     {% endif %}
 
 </section>
+
+{% if page.comments %}
+    <footer class="comments">
+        <div class="row">
+            <h1 id="comments">Comments</h1>
+            <div id="disqus_thread"></div>
+        </div>
+    </footer>
+{% endif %}
diff --git a/_src/whitepaper/index.md b/_src/whitepaper/index.md
index f0da941..58595d2 100644
--- a/_src/whitepaper/index.md
+++ b/_src/whitepaper/index.md
@@ -2,6 +2,8 @@
 layout: page
 
 title: 'Bigchain: A Scalable Blockchain Database'
+
+comments: true
 ---
 
 Trent McConaghy, Rodolphe Marques, Andreas Müller