require "option_parser"
require "digest/sha256"
require "colorize"

require "./launcher"

module DocMachine
  class Cli
    def initialize
    end

    def start(argv)
      options = {} of Symbol => String

      parser = OptionParser.new do |opts|
        opts.banner = "Usage: script.cr [options]"

        opts.on("-d", "--data-dir DIR", "Content directory") do |dir|
          options[:data_dir] = dir
        end

        opts.on("-a", "--action ACTION", "Action (watch, build, shell, etc.)") do |action|
          options[:action] = action
        end

        opts.on("-t", "--tty", "Enable TTY mode (needed for shell)") do |tty|
          options[:tty] = tty
        end

        opts.on("-v", "--verbose", "Enable verbosity") do |verbose|
          options[:verbose] = true.to_s
        end

        opts.on("-h", "--help", "Show this help") do
          puts opts
          exit
        end
      end

      parser.parse(ARGV)


      basedir = options[:data_dir]? ? options[:data_dir] : Dir.current
      basehash = Digest::SHA256.hexdigest(basedir)[0..6]
      action = options[:action]? ? options[:action] : "watch"
      verbosity = options[:verbose]? ? options[:verbose] : 0
      docker_image = "glenux/docmachine:latest"

      if options[:help]?
        puts "Usage: script.cr [options]"
        puts ""
        puts "-d, --data-dir DIR     Content directory"
        puts "-a, --action ACTION    Action (watch, build, shell, etc.)"
        puts "-t, --tty              Enable TTY mode (needed for shell)"
        puts "-v, --verbose          Enable verbosity"
        puts "-h, --help             Show this help"
        exit
      end

      launcher = DocMachine::Launcher.new(options)
      launcher.prepare
      launcher.start
      launcher.wait
    end
  end
end