require 'optparse'

module Soaring
  class CLI
    def self.start(argv)
      @project_folder = Dir.pwd
      command, options = self.parse

      puts "executing #{command} with #{options}" if options[:verbose]

      self.send("execute_#{command}",options)
    end

    private

    def self.execute_init(options)
      initializer = Initializer.new(options)
      initializer.initialize_project(@project_folder)
    end

    def self.execute_update(options)
      initializer = Initializer.new(options)
      initializer.initialize_project(@project_folder)
    end

    def self.execute_run(options)
      runner = Runner.new(options)
      runner.run(@project_folder)
    end

    def self.execute_package(options)
      packager = Packager.new(options)
      packager.package(@project_folder)
    end

    def self.parse
      options = {}

      opt_parser = OptionParser.new do |opt|
        opt.banner = "Usage: soaring COMMAND [OPTIONS]"
        opt.separator  ""
        opt.separator  "Commands"
        opt.separator  "     init: create a new soar service component in the current folder"
        opt.separator  "     update: update the soar service component in the current folder"
        opt.separator  "     run: run soar service locally"
        opt.separator  "     package: package the service component for deployment"
        opt.separator  ""
        opt.separator  "Options"

        opt.on("-v","--verbose","more verbose output of the process") do
          options[:verbose] = true
        end

        opt.on("-e","--environment ENVIRONMENT","environment you want the service to run in") do |environment|
          options[:environment] = environment
        end

        opt.on("-p","--port PORT","port to which the service component run must bind to") do |port|
          options[:port] = port
        end

        opt.on("-r","--soar_sc_refspec REF_SPEC","git reference spec for the soar_sc to base your init on") do |soar_sc_refspec|
          options[:soar_sc_refspec] = soar_sc_refspec
        end

        opt.on("-i","--ignore_git_checks","ignore checks ensuring your repo is up to date") do
          options[:ignore_git_checks] = true
          puts "Warning: Ignoring git repo checks"
        end

        opt.on("-h","--help","help") do
          puts opt_parser
          exit 0
        end
      end
      opt_parser.parse!

      command = ARGV[0]
      valid_commands = ['init', 'update', 'run', 'package']
      if not valid_commands.include?(command)
        puts 'Invalid command'
        puts opt_parser
        exit 1
      end
      [command, options]
    end
  end
end