#!/usr/bin/env ruby
require 'date'
require File.expand_path("../lib/log_slice", File.dirname(__FILE__))
find_date = begin
  DateTime.parse(ARGV[0])
rescue
  $stderr.puts "USAGE:   #{$0} DATE FILEPATH\n\n"
  $stderr.puts "EXAMPLE: #{$0} '2012-08-31 12:00:00' /tmp/something.log\n\n"
  $stderr.puts "Expects log lines to contain a DateTime string enclosed in [square brackets] \n\n"
  $stderr.puts "Could not parse date argument\n\n"
  raise
end
file = LogSlice.new(ARGV[1]).find do |line|
    date_string = line.match(/\[([^\]]+)\]/)[1]
    find_date <=> DateTime.parse(date_string)
end
puts file.readline until file.eof?