#!/usr/bin/env ruby

# Available options:
# 
# -h, --help:
#   prints the help
# 
# -t <template>, --template <template>
#   Uses the specified template when creating a page
# 
# -v, --version:
#   prints the version information

require 'rubygems' rescue nil
require 'getoptlong'

require File.dirname(__FILE__) + '/../lib/nanoc.rb'

# Define some texts
version_text = "nanoc #{Nanoc::VERSION} (c) 2007 Denis Defreyne."
help_text    = <<EOT
usage: nanoc [-hv]
       nanoc create_site <name>
       nanoc create_page <name> [-t template]
       nanoc create_template <name>
       nanoc compile
EOT

# Parse options
opts = GetoptLong.new(
  [ '--help',       '-h', GetoptLong::NO_ARGUMENT ],
  [ '--template',   '-t', GetoptLong::REQUIRED_ARGUMENT ],
  [ '--version',    '-v', GetoptLong::NO_ARGUMENT ]
)
uncompileed_opts = {}
begin
  opts.each do |opt, arg|
    case opt
    when '--help'
      $stderr.puts help_text
      exit
    when '--version'
      puts version_text
      exit
    else
      uncompileed_opts[opt] = arg
    end
  end
rescue GetoptLong::InvalidOption
  $stderr.puts help_text
  exit
end

# Make sure we have at least one argument
if ARGV.size == 0
  $stderr.puts help_text
  exit
end

# Handle command
command = ARGV[0]
case command
  # Create site
  when 'create_site', 'cs'
    if ARGV.size != 2
      $stderr.puts 'Usage: nanoc create_site [site_name]'
      exit
    end
    Nanoc::Creator.create_site(ARGV[1])

  # Create page
  when 'create_page', 'cp'
    if ARGV.size != 2
      $stderr.puts 'Usage: nanoc create_page [page_name]'
      exit
    end
    Nanoc::Creator.create_page(ARGV[1], :template => uncompileed_opts['--template'])

  # Create template
  when 'create_template', 'ct'
    if ARGV.size != 2
      $stderr.puts 'Usage: nanoc create_template [template_name]'
      exit
    end
    Nanoc::Creator.create_template(ARGV[1])

  # Process site and generate output
  when 'compile', 'compile_site', 'co'
    if ARGV.size != 1
      $stderr.puts 'Usage: nanoc compile'
      exit
    end
    Nanoc::Compiler.new.run

  else
    puts 'Unrecognised command \'' + command + '\''
end