#!/bin/env ruby

##
# fastly_upload_vcl - upload raw VCL files to Fastly
#
# Author::   Fastly Inc <support@fastly.com>
# Copyright:: Copyright (c) 2011 Fastly Inc
# License::   Distributes under the same terms as Ruby
#
# = USAGE
# 
#     fastly_upload_vcl <options> <service id or name> <path to vcl file>
# 
# = CONFIGURATION
# 
# You can either have a config file in either ~/.fastly or /etc/fastly with
# 
#     api_key = <key>
#     
# or a config file with
# 
#     user     = <login>
#     password = <password>
# 
# Alternatively you can pass in any of those options on the command line
# 
#     fastly_upload_vcl --api_key  <key> <service id or name> <path to vcl file>
#     fastly_upload_vcl --user <login> --password <password> <service id or name> <path to vcl file>
# 

require 'rubygems'
require 'fastly'

# :nodoc:
def die(message)
  warn message
  exit -1
end

params      = Fastly.get_options("#{ENV['HOME']}/.fastly", "/etc/fastly")

service_id  = ARGV.shift || die("You must pass in a service id")
vcl_file    = ARGV.shift || die("You must pass in a vcl file")

die("Couldn't find any of the config files - #{configs.join(',')}") unless params.keys.size>0
die("Couldn't find vcl file #{vcl_file}") unless File.file?(vcl_file)

fastly  = Fastly.new(params) 
service = fastly.get_service(service_id) || die("Couldn't find service #{service_id}")
old     = service.version
updated = old.clone
puts "Uploading #{vcl_file} and bumping version from #{old.number} to #{updated.number}"
begin
  name    = File.basename(vcl_file, ".vcl")
  content = File.new(vcl_file, "r").read
  vcl     = updated.vcl(name)
  if vcl
    vcl.content = content
    vcl.save!
  else
    updated.upload_vcl(name, content)
  end
  updated.activate!
rescue => e
  die("Couldn't upload and activate vcl: #{e}")
end
puts "Done!"