require "db/mongo/models/key"
require "fileutils"

module Devops
  module API2_0
    module Handler
      class Key

        def keys
          keys = Devops::Db.connector.keys.map {|i| i.to_hash}
          keys.each {|k| k.delete("path")}   # We should not return path to the key
        end

        def create body, file_name
          File.open(file_name, "w") do |f|
            f.write(body["content"])
            f.chmod(0400)
          end

          key = Devops::Model::Key.new({"path" => file_name, "id" => body["key_name"]})
          Devops::Db.connector.key_insert key
        end

        def delete key_id
          mongo = Devops::Db.connector
            servers = mongo.servers_by_key key_id
            unless servers.empty?
              s_str = servers.map{|s| s.id}.join(", ")
              raise DependencyError.new "Deleting is forbidden: Key is used in servers: #{s_str}"
            end

            k = mongo.key key_id
            begin
              FileUtils.rm(k.path)
            rescue
              DevopsLogger.logger.error "Missing key file for #{key_id} - #{k.filename}"
            end
            mongo.key_delete key_id
        end

      end
    end
  end
end