#!/usr/bin/env ruby

require_relative("../lib/yes_ship_it.rb")

options = {}
option_parser = OptionParser.new do |opts|
  opts.banner = "Usage: yes_ship_it [options] [command]"

  opts.separator ""
  opts.separator "Commands:"
  opts.separator "  changelog       - show change log since last release"
  opts.separator "  init            - initialize directory for shipping with yes_ship_it"
  opts.separator "  plugin list     - list all local assertion plugins"
  opts.separator "  plugin generate - generate a template for a local plugin"
  opts.separator ""
  opts.separator "Specific options:"

  opts.on("--dry-run", "Just pretend. Don't change anything.") do |v|
    options[:dry_run] = v
  end

  opts.on("--data-dir=DIR", "Set directory for storing internal data") do |v|
    options[:data_dir] = v
  end

  opts.on_tail("-h", "--help", "Show this message") do
    puts opts
    exit
  end
end
option_parser.parse!

config_file = "yes_ship_it.conf"

if ARGV == ["changelog"]
  engine = YSI::Engine.new
  engine.check_assertion(YSI::Version)
  tag = `git tag`.split("\n").last
  system("git log #{tag}..HEAD")
  exit 0
elsif ARGV == ["init"]
  YSI::Init.new(Dir.pwd).setup_config
elsif ARGV[0] == "plugin"
  plugin = YSI::Plugin.new(Dir.pwd)
  if ARGV[1] == "list"
    plugin.list
  elsif ARGV[1] == "generate"
    if !ARGV[2].is_a?(String) && !ARGV[3].is_a?(String)
      STDERR.puts "Parameters are missing. Use for example"
      STDERR.puts
      STDERR.puts "    yes_ship_it plugin generate my_plugin \"My plugin\""
      STDERR.puts
      STDERR.puts "to generate a plugin `my_plugin` with a display name of \"My plugin\"."
      exit 1
    end
    plugin.generate(ARGV[2], ARGV[3])
  else
    STDERR.puts "Invalid command"
    STDERR.puts
    STDERR.puts option_parser
    exit 1
  end
elsif ARGV.empty?
  if !File.exist?(config_file)
    STDERR.puts "Unable to find file `yes_ship_it.conf`. I need it."
    exit 1
  end

  puts "Shipping..."
  puts

  engine = YSI::Engine.new
  engine.dry_run = options[:dry_run]
  engine.data_dir = options[:data_dir] if options[:data_dir]

  begin
    YSI::Plugin.new(Dir.pwd).load

    engine.read(config_file)

    exit engine.run
  rescue YSI::Error => e
    STDERR.puts e
    exit 1
  end
else
  $stderr.puts "Unrecognized arguments: #{ARGV.join(" ")}"
  puts option_parser
  exit 1
end