From cfb4cad519930cf848c0514137b1aebf98d5061f Mon Sep 17 00:00:00 2001
From: Ben Kurtovic <ben.kurtovic@verizon.net>
Date: Tue, 24 Jul 2012 20:25:01 -0400
Subject: [PATCH] UglifyJS; cache background information.

---
 README.md            |  1 +
 build.py             | 10 ++++++++++
 static/js/cookies.js | 17 +++++++++++++----
 static/js/potd.js    | 21 +++++++++++++++++++++
 4 files changed, 45 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index eb45084..deff407 100644
--- a/README.md
+++ b/README.md
@@ -10,3 +10,4 @@ Dependencies
 * [earwigbot](https://github.com/earwig/earwigbot)
 * [mako](http://www.makotemplates.org/)
 * [oursql](http://packages.python.org/oursql/)
+* [uglifyjs](https://github.com/mishoo/UglifyJS/)
diff --git a/build.py b/build.py
index 6853983..bb492f2 100755
--- a/build.py
+++ b/build.py
@@ -4,6 +4,7 @@
 import logging
 import os
 import shutil
+import subprocess
 
 page_src = """#! /usr/bin/env python
 # -*- coding: utf-8  -*-
@@ -95,6 +96,15 @@ class Builder(object):
 
         logger.debug("copytree {0} -> {1}".format(self.static_dir, dest))
         shutil.copytree(self.static_dir, dest)
+        for dirpath, dirnames, filenames in os.walk(dest):
+            for filename in filenames:
+                if filename.endswith(".js"):
+                    name = os.path.join(dirpath, filename)
+                    logger.debug("uglifyjs {0}".format(name))
+                    uglified = subprocess.check_output(["uglifyjs", name])
+                    os.remove(name)
+                    with open(name, "w") as fp:
+                        fp.write(uglified)
 
     def gen_pages(self):
         logger = self.root.getChild("pages")
diff --git a/static/js/cookies.js b/static/js/cookies.js
index 7a0ebab..62e52b9 100644
--- a/static/js/cookies.js
+++ b/static/js/cookies.js
@@ -18,18 +18,27 @@ function get_cookie(name) {
     return null;
 }
 
-function set_cookie(name, value, days) {
+function set_cookie_with_date(name, value, date) {
     value = window.btoa("--ets1" + value);
     var path = window.location.pathname.split("/", 2)[1];
+    if (date) {
+        var expires = "; expires=" + date.toUTCString();
+    }
+    else {
+        var expires = "";
+    }
+    document.cookie = name + "=" + value + expires + "; path=/" + path;
+}
+
+function set_cookie(name, value, days) {
     if (days) {
         var date = new Date();
         date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
-        var expires = "; expires=" + date.toGMTString();
+        set_cookie_with_date(name, value, date);
     }
     else {
-        var expires = "";
+        set_cookie_with_date(name, value);
     }
-    document.cookie = name + "=" + value + expires + "; path=/" + path;
 }
 
 function delete_cookie(name) {
diff --git a/static/js/potd.js b/static/js/potd.js
index 2095a24..02d5bb0 100644
--- a/static/js/potd.js
+++ b/static/js/potd.js
@@ -1,4 +1,20 @@
 function potd_set_background() {
+    var cookie = get_cookie("EarwigBackgroundCache");
+    if (cookie) {
+        try {
+            data = JSON.parse(cookie);
+            var url = data.url;
+            var descurl = data.descurl;
+            var imgwidth = data.imgwidth;
+            var imgheight = data.imgheight;
+            if (url && descurl && imgwidth && imgheight) {
+                set_background(url, descurl, imgwidth, imgheight);
+                return;
+            }
+        }
+        catch (SyntaxError) {}
+    }
+
     var d = new Date();
     var callback = "earwigpotd1";
     var date = (d.getUTCFullYear()) + "-" + zero_pad(d.getUTCMonth() + 1, 2) + "-" + zero_pad(d.getUTCDate(), 2);
@@ -55,7 +71,12 @@ function parse_file_url(data, filename) {
         imgwidth = r["width"];
         imgheight = r["height"];
     }
+
     set_background(url, descurl, imgwidth, imgheight);
+    var data = {"url": url, "descurl": descurl, "imgwidth": imgwidth, "imgheight": imgheight};
+    var now = new Date();
+    var expires = new Date(now.getUTCFullYear(), now.getUTCMonth(), now.getUTCDate() + 1);
+    set_cookie_with_date("EarwigBackgroundCache", JSON.stringify(data), expires);
 }
 
 function set_background(url, descurl, imgwidth, imgheight) {