# frozen_string_literal: true

require 'open3'

# Este modelo implementa los distintos tipos de alojamiento que provee
# Sutty.
#
# Los datos se guardan en la tabla `deploys`.  Para guardar los
# atributos, cada modelo tiene que definir su propio `store
# :attributes`.
class Deploy < ApplicationRecord
  belongs_to :site
  has_many :build_stats, dependent: :destroy

  DEPENDENCIES = []
  SOFT_DEPENDENCIES = []

  def deploy(**)
    raise NotImplementedError
  end

  def url
    raise NotImplementedError
  end

  def limit
    raise NotImplementedError
  end

  def size
    raise NotImplementedError
  end

  # Realizar tareas de limpieza.
  def cleanup!; end

  def time_start
    @start = Time.now
  end

  def time_stop
    @stop = Time.now
  end

  def time_spent_in_seconds
    (@stop - @start).round(3)
  end

  def home_dir
    site.path
  end

  # XXX: Ver DeployLocal#bundle
  def gems_dir
    @gems_dir ||= Rails.root.join('_storage', 'gems', site.name)
  end

  # Corre un comando, lo registra en la base de datos y devuelve el
  # estado.
  #
  # @param [String]
  # @return [Boolean]
  def run(cmd, output: false)
    r = nil
    lines = []

    time_start
    Dir.chdir(site.path) do
      Open3.popen2e(env, cmd, unsetenv_others: true) do |_, o, t|
        # TODO: Enviar a un websocket para ver el proceso en vivo?
        Thread.new do
          o.each do |line|
            lines << line

            puts line if output
          end
        rescue IOError => e
          lines << e.message
          puts e.message if output
        end

        r = t.value
      end
    end
    time_stop

    build_stats.create action: readable_cmd(cmd),
                       log: lines.join,
                       seconds: time_spent_in_seconds,
                       bytes: size,
                       status: r&.success?

    r&.success?
  end

  # Variables de entorno
  #
  # @return [Hash]
  def local_env
    @local_env ||= {}
  end

  # Trae todas las dependencias
  #
  # @return [Array]
  def self.all_dependencies
    self::DEPENDENCIES | self::SOFT_DEPENDENCIES
  end

  private

  # @param [String]
  # @return [String]
  def readable_cmd(cmd)
    cmd.split(' -', 2).first.tr(' ', '_')
  end

  def deploy_local
    @deploy_local ||= site.deploys.find_by(type: 'DeployLocal')
  end

  def non_local_deploys
    @non_local_deploys ||= site.deploys.where.not(type: 'DeployLocal')
  end
end