require "commands/deploy"
require "commands/status"
require "workers/deploy_worker"
require "exceptions/deploy_info_error"
require "app/api2/parsers/deploy"
require_relative "request_handler"

module Devops
  module API2_0
    module Handler
      class Deploy < RequestHandler
        extend DeployCommands
        extend StatusCommands

        set_parser Devops::API2_0::Parser::DeployParser

        def deploy
          body = parser.deploy
          names = body["names"]
          tags = body["tags"] || []
          dir = DevopsConfig.config[:report_dir_v2]
          files = []
          jid = nil
          uri = URI.parse(parser.request.url)
          owner = parser.current_user
          @deploy_info_buf = {}
          servers(names).each do |s|
            project = begin
              Devops::Db.connector.check_project_auth s.project, s.deploy_env, owner
            rescue InvalidPrivileges, RecordNotFound  => e
              DevopsLogger.logger.warn e.message
              next
            end
            begin
              deploy_info = create_deploy_info(s, project, body["build_number"])
              jid = DeployWorker.perform_async(dir, s.to_hash, tags, owner, DevopsConfig.config, deploy_info)
              Worker.set_status jid, Worker::STATUS::IN_QUEUE
              DevopsLogger.logger.info "Job '#{jid}' has been queued"
            rescue DeployInfoError => e
              msg = "Can not get deploy info: " + e.message
              DevopsLogger.logger.error msg
              jid = "error_#{s.chef_node_name}_#{Time.new.to_i}"
              file = File.jon(dir, jid)
              File.open(file, "w") do |out|
                #unless attributes.nil?
                #  out << "Report attributes: #{attributes.inspect}\n"
                #end
                out.write msg
              end
              o = {
                "file" => file,
                "_id" => jid,
                "created_by" => owner,
                "project" => s.project,
                "deploy_env" => s.deploy_env,
                "type" => Report::DEPLOY_TYPE,
                "status" => Worker::STATUS::FAILED
#                "attributes" => attributes
              }
              Devops::Db.connector.save_report(Report.new(o))
            end
            files.push jid
          end
          files
        end

        def deploy_stream out
          body = parser.deploy
          names = body["names"]
          tags = body["tags"] || []
          status = []
          owner = parser.current_user
          @deploy_info_buf = {}
          servers(names).each do |s|
            project = begin
              Devops::Db.connector.check_project_auth s.project, s.deploy_env, owner
            rescue InvalidPrivileges, RecordNotFound  => e
              out << e.message + "\n"
              status.push 2
              next
            end
            begin
              deploy_info = create_deploy_info(s, project, body["build_number"])
              res = deploy_server_proc.call(out, s, tags, deploy_info)
              status.push(res)
            rescue DeployInfoError => e
              msg = "Can not get deploy info: " + e.message
              DevopsLogger.logger.error msg
              out << msg + "\n"
              status.push 2
              next
            end
          end
          status
        rescue RecordNotFound  => e
          out << e.message
          [-10]
        end

        def servers names
          servers = Devops::Db.connector.servers(nil, nil, names, true)
          raise RecordNotFound.new("No reserved servers found for names '#{names.join("', '")}'") if servers.empty?
          servers.sort_by!{|s| names.index(s.chef_node_name)}
          servers
        end

        def create_deploy_info server, project, build_number
          buf_key = "#{server.project}_#{server.deploy_env}"
          deploy_info = if @deploy_info_buf.key?(buf_key)
            @deploy_info_buf[buf_key]
          else
            @deploy_info_buf[buf_key] = project.deploy_info(server.deploy_env, build_number)
          end
        end
      end
    end
  end
end