automate increasing team limits

models/index.coffee

@@ -2,7 +2,7 @@ util = require 'util'
 mongoose = require 'mongoose'
 require('mongoose-types').loadTypes mongoose
 
-require "./#{lib}" for lib in ['invite', 'person', 'deploy', 'vote', 'team', 'service']
+require "./#{lib}" for lib in ['invite', 'person', 'deploy', 'vote', 'team_limit', 'team', 'service']
 
 module.exports = (url) ->
   util.log 'connecting to ' + url.cyan

models/team.coffee

@@ -5,7 +5,7 @@ querystring = require 'querystring'
 request = require 'request'
 
 InviteSchema = require './invite'
-[Invite, Person, Deploy, Vote] = (mongoose.model m for m in ['Invite', 'Person', 'Deploy', 'Vote'])
+[TeamLimit, Invite, Person, Deploy, Vote] = (mongoose.model m for m in ['TeamLimit', 'Invite', 'Person', 'Deploy', 'Vote'])
 
 TeamSchema = module.exports = new mongoose.Schema
   slug:
@@ -71,8 +71,10 @@ TeamSchema.static 'canRegister', (next) ->
   # return next null, false, 0 # cut off team registration
   Team.count {}, (err, count) ->
     return next err if err
-    max = 101 # +1 because team fortnight labs doesn't count
-    next null, count < max, max - count
+    TeamLimit.current (err, limit) ->
+      return next err if err
+      limit++ # +1 for fortnight labs team
+      next null, count < limit, limit - count
 TeamSchema.static 'uniqueName', (name, next) ->
   Team.count { name: name }, (err, count) ->
     return next err if err

models/team_limit.coffee

@@ -0,0 +1,39 @@
+mongoose = require 'mongoose'
+
+TeamLimitSchema = module.exports = new mongoose.Schema
+  limit:
+    type: Number
+    required: true
+  effectiveAt:
+    type: Date
+    required: true
+TeamLimitSchema.plugin require('../lib/use-timestamps')
+TeamLimitSchema.index effectiveAt: -1
+
+# class methods
+
+lastLimit = null
+TeamLimitSchema.static 'current', (next) ->
+  now = new Date
+
+  # only check every hour, unless we're near 0:00/12:00 UTC
+  if lastLimit?.updatedAt > now - (1000*60*60) and not @aroundMeridian(now)
+    next null, lastLimit.limit
+  else
+    TeamLimit.findOne { effectiveAt: { $lte: now } }, {}, { sort: [[ 'effectiveAt', -1 ]] }, (err, limit) ->
+      return next err if err
+
+      limit ||= new TeamLimit limit: 0, effectiveAt: now # default to 0
+      limit.updatedAt = now
+      limit.save()
+
+      lastLimit = limit
+
+      next null, limit.limit
+
+TeamLimitSchema.static 'aroundMeridian', (now) ->
+  [h, m] = [now.getUTCHours(), now.getUTCMinutes()]
+  (h == 11 && m > 54) || (h == 12 && m < 5) ||  # 11:55 - 12:05
+  (h == 23 && m > 54) || (h ==  0 && m < 5)     # 23:55 - 00:05
+
+TeamLimit = mongoose.model 'TeamLimit', TeamLimitSchema

views/index/about.jade

@@ -5,7 +5,7 @@
   Node.js Knockout is a 48-hour hackathon featuring [node.js]. It's an online,
   virtual competition with [contestants worldwide].
 
-  Coding takes place from November 10, 2012 0:00 GMT to November 12, 2012 0:00 GMT.
+  Coding takes place from November 10, 2012 0:00 UTC to November 12, 2012 0:00 UTC.
   Judging and public voting take place the following week.
 
   This is the third year it's been held.

views/index/index.jade

@@ -31,7 +31,7 @@ section.when
   else
     h1 Registration is Full
     p
-      a( href="/teams/new" ) More spots may open at 0:00 GMT
+      a( href="/teams/new" ) More spots may open at 0:00 and 12:00 UTC
 
   :markdown
     P.S. This is a massively-multiplayer website: click around and chat with

views/index/rules.jade

@@ -12,10 +12,10 @@
   ### 48 Hours
 
   You've got precisely 48 hours to develop your web app during the Knockout,
-  not a minute more. The competition kicks off at [12:00am / 00:00 GMT on
-  November 10, 2012][start time] and ends at [12:00am / 00:00 GMT on November 12,
-  2012][end time]. Be sure you understand what time that translates to in your
-  local time zone.
+  not a minute more. The competition kicks off at [12:00 AM / 00:00 UTC on
+  November 10, 2012][start time] and ends at [12:00 AM / 00:00 UTC on November
+  12, 2012][end time]. Be sure you understand what time that translates to in
+  your local time zone.
 
   Of course, feel free to work on the _concept_ for your application before the
   competition starts: pretty hand-drawn pictures on napkins, angry email
@@ -129,8 +129,8 @@
 
   [Email] or [tweet] us.
 
-  [start time]: http://www.wolframalpha.com/input/?i=November+10%2C+2012+0%3A00+GMT
-  [end time]: http://www.wolframalpha.com/input/?i=November+12%2C+2012+0%3A00+GMT
+  [start time]: http://www.wolframalpha.com/input/?i=November+10%2C+2012+0%3A00+UTC
+  [end time]: http://www.wolframalpha.com/input/?i=November+12%2C+2012+0%3A00+UTC
   [GitHub]: https://github.com/
   [nodejitsu]: http://nodejitsu.com/
   [npm]: http://npmjs.org/

views/index/scoring.jade

@@ -22,8 +22,8 @@ h1= title('Scoring')
 
   ## Voting
 
-  All voting will take place between 03:00 GMT on Monday, August 29 and 0:00
-  GMT on Tuesday, September 6.
+  All voting will take place between 03:00 UTC on Monday, August 29 and 0:00
+  UTC on Tuesday, September 6.
 
   There will be three groups of voters:
 

views/index/tell-me-a-story.jade

@@ -133,7 +133,7 @@ h2: a( href="#slide-0" ) Let's take a short hike →
   :markdown
     # 2012!
 
-    - November 10-12, 2012 GMT
+    - November 10-12, 2012 UTC
     - Registration open soon
     - [@node_knockout][1]
 

views/teams/max.jade

@@ -3,19 +3,21 @@
 :markdown
   # Too many teams!
 
-  ## More spots *may* open at [0:00 GMT]
+  ### More spots *may* open at [0:00] or [12:00 UTC]
 
   To accommodate as many people as possible, we'll be releasing more team spots
-  over time at [0:00 GMT] each day up until close of registration.
+  over time at [0:00] and [12:00 UTC] each day up until close of
+  registration.
 
   Your options are:
 
-  - Be here at [0:00 GMT] when we open up more spots.
+  - Be here at [0:00] or [12:00 UTC] when we open up more spots.
   - Check back randomly. Teams may give up their spot at any time.
   - Peruse the [existing teams](/teams) and try to find one to join.
   - Tweet about your misfortune (be sure to mention [@node_knockout]) and
     we can try to help you find a team to join.
 
-  [0:00 GMT]: http://www.wolframalpha.com/input/?i=0:00+GMT
+  [0:00]: http://www.wolframalpha.com/input/?i=0:00+UTC
+  [12:00 UTC]: http://www.wolframalpha.com/input/?i=12:00+UTC
   [existing teams]: /teams
   [@node_knockout]: http://twitter.com/node_knockout