module Teamster
  module CLI
    def self.included(base)
      base.extend ClassMethods
    end

    module ClassMethods
      def quit(msg, code = 0)
        warn msg
        exit code
      end

      def create_config(team_name)
        if team_name
          @config[:title] = team_name
        else
          ask_user_for :title, "What is your team name"
        end
        File.open(CONFIG_FILE, 'w') {|fh| fh.write @config.to_yaml}
      end

      def create_user
        puts "Creating default user.."
        users = [{"name" => "Administrator", "pass" => b64_enc(BCrypt::Password.create("password"))}]
        File.open("./data/users", "w") do |fh|
          fh.write({"users" => users}.to_yaml)
        end
        FileUtils.chmod 0600, './data/users'
      end

      def b64_enc(obj)
        Base64.strict_encode64(obj)
      end

      def ask_user_for(opt, question)
        unless @config[opt]
          @config[opt] = ask_user question
        end
      end

      def ask_user(question)
        print "#{question}: "
        STDIN.gets.strip
      end

      def create_module_for(name)
        puts "Creating placeholders for module #{name}...\n"
        FileUtils.mkdir_p "lib/teamster-modules/#{name}/views"
        create_file "lib/teamster-modules/#{name}.rb", "module_placeholder_for", name
        create_file "lib/teamster-modules/#{name}/#{name}_helper.rb", "module_helper_placeholder_for", name
        create_file "lib/teamster-modules/#{name}/views/#{name}.erb", "view_placeholder_for", name
        create_file "lib/teamster-modules/#{name}/views/#{name}_summary.erb", "view_summary_placeholder_for", name
        puts "\nBasic module creation done!"
        puts "Controller   : \"lib/teamster-modules/#{name}.rb\""
        puts "Helper       : \"lib/teamster-modules/#{name}/#{name}_helper.rb\""
        puts "View         : \"lib/teamster-modules/#{name}/views/#{name}.erb\""
        puts "Summary View : \"lib/teamster-modules/#{name}/views/#{name}_summary.erb\""
      end

      def import_module_for(name)
        puts "Importing module: #{name}"
        zip_file = "#{name}.zip"
        if File.exists?(zip_file)
          if `which unzip`.length != 0
            `unzip #{zip_file}`
            puts "\nSuccessfully imported #{name}. Please restart teamster to use."
          else
            puts "\nUnable to import module. Export depends on cli tool \"unzip\"."
          end
        else
          puts "Unable to find file: #{zip_file}"
        end
      end

      def export_module_for(name)
        puts "Exporting module: #{name}"
        zip_file = "#{name}.zip"
        puts "The following files will be zipped:"
        puts "- lib/teamster-modules/#{name}.rb"
        puts '- Everything in folder lib/teamster-modules/#{name}/'
        if `which zip`.length != 0
          `zip -r #{zip_file} lib/teamster-modules/#{name}.rb lib/teamster-modules/#{name}/`
          puts "\nExported to #{zip_file}!"
        else
          puts "\nUnable to export module. Export depends on cli tool \"zip\"."
        end
      end

      def create_file(filename, method, *args)
        case [File.exists?(filename), !!@config[:overwrite]]
        when [true, false]
          puts "File \"#{filename}\" exists. Run with --overwrite to overwrite file."
        else
          puts "Creating file #{filename}..."
          File.open(filename, "w") {|fh| fh.write(send(method.to_sym, *args))}
        end
      end

      def show_version
        "Current version of teamster: #{VERSION}"
      end

      def usage
        <<-HELP
Initialize application:
  teamster init

Run web application:
  teamster start

Run web application in production (uses unix socket & state file):
  teamster start --prod [--socket-file FILE] [--state-file FILE]

Verify by opening browser and navigating to "http://localhost:9292".

For more detailed help, please run "teamster --help".
        HELP
      end

      def detailed_usage
        <<-DETAIL
Teamster is a simple and extensible web portal for teams.

Current version: #{VERSION}

Usage:
  teamster [COMMAND] [OPTIONS]

Commands:
  init, start, stop, restart

Options (standalone):
  --help                    Display this detailed help.
  --version                 Version of the teamster used.
  --create-module NAME      Creates a stub of a module
  --import-module FILE      << PENDING IMPLEMENTATION >>
  --export-module FILE      << PENDING IMPLEMENTATION >>


Options used with \"start\":
  --prod                    Binds a unix socket to be used by a web
                            server (eg. Nginx) and creates a state file
                            that is used by the Puma app server.
  --socket-file FILE        Relative/absolute path to the UNIX socket file.
  --state-file FILE         Relative/absolute path to the Puma state file.


Options used with \"stop\":
  --socket-file FILE        Relative/absolute path to the UNIX socket file.
  --state-file FILE         Relative/absolute path to the Puma state file.


Options used with \"restart\":
  --socket-file FILE        Relative/absolute path to the UNIX socket file.
  --state-file FILE         Relative/absolute path to the Puma state file.
      DETAIL
      end

      def config_ru
        <<-CODE
require 'teamster'
Dir.glob("lib/*.rb").each {|file| require File.absolute_path(file)}
run Teamster::Core::App
        CODE
      end

      def teamster_modules
        <<-CODE
Dir.glob(File.dirname(__FILE__) + '/teamster-modules/*.rb').each do |mdl|
  require mdl
end
        CODE
      end

      def module_placeholder_for(name)
        <<-CODE
require_relative \"#{name}/#{name}_helper\"

\# NOTE: If the namespace is changed, please take care of the
\#       namespace of the sub-class and helper modules.

module Teamster
  module Modules
    class #{name.capitalize} < Sinatra::Base
      \# Class methods that contain Teamster-Module specific helpers.
      include BaseModule

      \# Stuff that needs to be done before registration with core.
      has_helpers #{name.capitalize}Helper \# Add modules here (comma separated) if there are helper modules.
      views_at \"\#\{File.dirname(__FILE__)\}/#{name}/views\"
      under_development \# Remove this line when development is finished.

      \# Register this class so it can be used.
      register self

      get '/#{name}/?' do
        erb :#{name}
      end
    end
  end
end
        CODE
      end

      def module_helper_placeholder_for(name)
        <<-CODE
module Teamster
  module Modules
    module #{name.capitalize}Helper
      def #{name}_summary?
        true
      end

      def #{name}_summary
        erb :#{name}_summary
      end
    end
  end
end
        CODE
      end

      def view_placeholder_for(name)
        <<-CODE
<h1 style='text-align: center'>PLACEHOLDER FOR #{name.upcase}</h1>
<p style='text-align: center'>Page under construction. Please check back later!</p>
        CODE
      end

      def view_summary_placeholder_for(name)
        <<-CODE
<p>Under development right now..</p>
        CODE
      end
    end
  end
end