#!/usr/bin/env ruby

require 'oct'
require 'optparse'
require 'term/ansicolor'
require 'fileutils'

available_actions = Oct::AVAILABLE_ACTIONS

banner = <<BANNER
Octal file listing

  Usage: oct [options] [FILES]
BANNER
banner << "\nActions: #{available_actions.join(' ')}\n" unless available_actions.empty?

help = banner
help += <<HELP

Options:

HELP

options = {}
OptionParser.new do |opts|
  opts.banner = help

  opts.on("-v", "--[no-]verbose", "Run verbosely") do |v|
    options[:verbose] = v
  end

  opts.on("-c", "--[no-]coloring [MODE]", "--[no-]color [MODE]", "ANSI color in output. MODE=AUTO (default) or ALWAYS") do |c|
    options[:color] = c.nil? ? "AUTO" : c
    options[:color].upcase! if options[:color]
    unless [nil, false, "AUTO", "ALWAYS"].include?(options[:color])
      puts "oct, invalid color option: #{options[:color]}"
      exit 1
    end
  end

  opts.on("--version", "Display current version") do
    puts "oct, version " + Oct.version
    exit 0
  end

  opts.on("--config FILE", "Load configuration options from FILE") do |file|
    options[:config] = file
  end

  # no argument, shows at tail.  This will print an options summary.
  opts.on_tail("-h", "--help", "Show this message") do
    puts opts
    exit 0
  end

  begin
    opts.parse!
  rescue OptionParser::InvalidOption => e
    puts "oct #{e}"
    puts "oct --help for more information"
    exit 1
  end

end

# options from config file, if it exists, will not overwrite command line
options = Oct::Settings.new(FileUtils.pwd, options).options

if STDOUT.isatty || (options[:color] == 'ALWAYS')
  Term::ANSIColor::coloring = options[:color]

  if options[:color] && Oct::WINDOWS
    unless ENV['ANSICON']
      begin
        require 'Win32/Console/ANSI'
      rescue LoadError
        Term::ANSIColor::coloring = false
        STDERR.puts 'WARNING: You must "gem install win32console" (1.2.0 or higher) or use the ANSICON driver (https://github.com/adoxa/ansicon) to get color output on MRI/Windows'
      end
    end
  end

else
  Term::ANSIColor::coloring = false
end

app = Oct::App.new(FileUtils.pwd, ARGV.dup, options)
app.execute