#! /usr/bin/ruby

require 'getoptlong'
require 'csv'
require 'erb'
this_dir = File.dirname(__FILE__)
require this_dir + '/mackie.rb'
require this_dir + '/controls.rb'

read_opts = GetoptLong.new(
[ "--headers", '-e', GetoptLong::NO_ARGUMENT ],

[ "--version","-v", GetoptLong::NO_ARGUMENT ],
[ "--help",   "-h", "-?", GetoptLong::NO_ARGUMENT ]
)

# process the parsed options
read_opts.each do |opt, arg|
  case opt
    when "--headers"
      $generate_headers = true
    else
      $generate_headers = false
  end
end

cc_template = ''
File.open( this_dir + "/surface-cc-template.erb", "r" ) { |f| cc_template = f.read }

h_template = ''
File.open( this_dir + "/surface-h-template.erb", "r" ) { |f| h_template = f.read }

# needs to be defined outside the loop otherwise ERB can't find it
sf = nil

files =
if ARGV.size == 0
  Dir.glob "#{this_dir}/*csv"
else
  ARGV
end

files.each do |csv_file|
  csv_file =~ /(\w+)-controls.csv/
  sf = Surface.new( $1.capitalize )
  
  control_data = ''
  File.open( csv_file, "r") { |f| control_data = f.read }
  sf.parse control_data

  @result = ""
  
  erb = ERB.new( cc_template , 0, "%<>-", "@result" )
  erb.result
  File.open( "#{sf.name.downcase}_surface_generated.cc", "w" ) { |f| f.write @result }

  if $generate_headers
    erb = ERB.new( h_template , 0, "%<>-", "@result" )
    erb.result
    File.open( "#{sf.name.downcase}_surface.h", "w" ) { |f| f.write @result }
  end
  
end