#!/usr/bin/env ruby
#
# Posts plan updates to Twitter.  Run from cron.  Plan file should be in
# the form:
#
# 1283526618 Friday, September  3 2010 @ 08:10:18 AM
# Blah blah blah blah blah
# ------------------------------------------------------------------------

require 'twitter'
require 'pathname'

OpenSSL::SSL::VERIFY_PEER = OpenSSL::SSL::VERIFY_NONE
PLAN = Pathname.new( ENV['HOME'] ) + '.plan'

MAXSIZE = 280

### Send the most recent plan updates to twitter.
###
def main
    last_update = File.open( '.plit-lastupdate' ).read.chomp.to_i

	client = Twitter::REST::Client.new do |config|
		config.consumer_key        = ''
		config.consumer_secret     = ''
		config.access_token        = ''
		config.access_token_secret = ''
	end

	updates.sort_by{|k,v| k }.each do |update|
		time, text = update
		next if time <= last_update

		puts "Posting #{time}..."
		client.update( text )
		last_update = time
	end

	open( '.plit-lastupdate', 'w' ) do |f|
		f.puts last_update
	end
end


### Fetch all current .plan updates and return them
### as a hash { id => text }
###
def updates
    return PLAN.read.split(/^-{10,}\r?\n/).inject({}) do |hash, update|
        post = update.match(/
                    ^(\d+)      # update id (epoch)
                    .+\r?\n     # human readable date
                    (.+)        # update text
                    /xm)

        next hash unless post
        text = post[2].chomp
        text = text[0, MAXSIZE-3] << '...' if text.size > MAXSIZE

        hash[ post[1].to_i ] = text
        hash
    end
end

main if __FILE__ == $0