#!/usr/bin/env ruby
require 'colorized_string'
require 'gli'
require_relative '../lib/howitzer/version'

# Howitzer Command line interface
module HowitzerCli
  extend GLI::App
  synopsis_format :compact
  program_desc 'Ruby based framework for acceptance testing'
  version Howitzer::VERSION

  desc 'Generate new project'
  arg_name '<PROJECT NAME>'
  command :new do |c|
    c.desc 'Integrate Cucumber'
    c.switch %i[c cucumber], negatable: false

    c.desc 'Integrate Rspec'
    c.switch %i[r rspec], negatable: false

    c.desc 'Integrate Turnip'
    c.switch %i[t turnip], negatable: false

    c.action do |_global_options, options, args|
      if !args.empty?
        validate_options(options)
        load_generators
        path_to_dir = File.join(Dir.pwd, args.first)
        puts ColorizedString.new('  * New project directory creation ...').light_cyan
        Dir.mkdir(path_to_dir)
        puts "      #{ColorizedString.new('Created').light_green} './#{args.first}' folder"
        Dir.chdir(path_to_dir)
        Howitzer::ConfigGenerator.new(options)
        Howitzer::WebGenerator.new(options)
        Howitzer::TasksGenerator.new(options)
        Howitzer::EmailsGenerator.new(options)
        Howitzer::RootGenerator.new(options)
        Howitzer::PrerequisitesGenerator.new(options)
        if options[:cucumber]
          Howitzer::CucumberGenerator.new(options)
        elsif options[:rspec]
          Howitzer::RspecGenerator.new(options)
        elsif options['turnip']
          Howitzer::TurnipGenerator.new(options)
        end
        puts ColorizedString.new('[WARN] Extra parameters were skipped').yellow if args.size > 1
      elsif args.size.zero?
        exit_now!(ColorizedString.new('Please specify <PROJECT NAME>').red, 64)
      end
    end
  end

  desc 'Upgrade existing project'
  command :update do |c|
    c.action do
      check_project_presence
      load_generators
      Howitzer::ConfigGenerator.new
      Howitzer::WebGenerator.new
      Howitzer::TasksGenerator.new
      Howitzer::EmailsGenerator.new
      Howitzer::PrerequisitesGenerator.new
      if cucumber_integrated?
        Howitzer::RootGenerator.new(cucumber: true)
        Howitzer::CucumberGenerator.new
      elsif rspec_integrated?
        Howitzer::RootGenerator.new(rspec: true)
        Howitzer::RspecGenerator.new
      elsif turnip_integrated?
        Howitzer::RootGenerator.new(turnip: true)
        Howitzer::TurnipGenerator.new
      end
    end
  end

  # helpers
  class << self
    private

    def validate_options(options)
      return if [options[:cucumber], options[:rspec], options[:turnip]].count { |el| el } == 1

      exit_now!(ColorizedString.new('Provide --cucumber, --rspec or --turnip option').red, 64)
    end

    def check_project_presence
      exit_now!(ColorizedString.new('Current directory is not Howitzer project').red, 126) unless howitzer_project?
    end

    def howitzer_project?
      (Dir.exist?('web') || Dir.exist?('pages')) && Dir.exist?('config')
    end

    def load_generators
      Dir[
          File.join(__dir__, '..', 'generators', '**', '*_generator.rb')
      ].each { |f| require File.expand_path(f) }
    end

    def cucumber_integrated?
      Dir.exist?('features')
    end

    def rspec_integrated?
      File.exist?('spec/spec_helper.rb') && !File.exist?('spec/turnip_helper.rb')
    end

    def turnip_integrated?
      File.exist?('spec/spec_helper.rb') && File.exist?('spec/turnip_helper.rb')
    end
  end
end

exit(HowitzerCli.run(ARGV)) unless ENV['TEST_MODE']