require 'travis/cli/setup'

module Travis
  module CLI
    class Setup
      class Service
        def self.normalized_name(string)
          string.to_s.downcase.gsub(/[^a-z]/, '')
        end

        def self.description(description = nil)
          @description ||= ""
          @description = description if description
          @description
        end

        def self.service_name(service_name = nil)
          @service_name ||= normalized_name(name[/[^:]+$/])
          @service_name = service_name if service_name
          @service_name
        end

        def self.known_as?(name)
          normalized_name(service_name) == normalized_name(name)
        end

        attr_accessor :command

        def initialize(command)
          @command = command
        end

        def method_missing(*args, &block)
          @command.send(*args, &block)
        end

        private

          def on(question, config, condition)
            return unless agree(question) { |q| q.default = 'yes' }
            config['on'] ||= {}
            config['on'].merge! condition
          end

          def encrypt(config, key)
            encrypted   = repository.encrypt(config.fetch(key))
            config[key] = { 'secure' => encrypted }
          end

          def configure(key, value = {}, config = travis_config)
            error "#{key} section already exists in .travis.yml, run with --force to override" if config.include? key and not force?
            yield(config[key] = value)
          end

          def branch
            @branch ||= `git rev-parse --symbolic-full-name --abbrev-ref HEAD`.chomp
          end

          def deploy(provider, verb = "deploy")
            configure('deploy', 'provider' => provider) do |config|
              yield config

              on("#{verb.capitalize} only from #{repository.slug}? ", config, 'repo' => repository.slug)
              on("#{verb.capitalize} from #{branch} branch? ", config, 'branch' => branch) if branch != 'master' and branch != 'HEAD'

              encrypt(config, 'password') if config['password'] and agree("Encrypt Password? ") { |q| q.default = 'yes' }
              encrypt(config, 'api_key')  if config['api_key']  and agree("Encrypt API key? ") { |q| q.default = 'yes' }
            end
          end
      end
    end
  end
end