module EmacsCollab

  class User
    attr_accessor :id, :keypath, :pw_hash, :salt, :keys

    def to_s
      "#{@id}"
    end

    def initialize(id)
      @id = id
      @keypath = "#{USER_LOCATION}#{id}"
      refresh_keys
    end

    def add_key_from_string(keystring)
      unless valid_pubkey? keystring
        raise InvalidSSHPubKey, "Public key not valid"
      end
      ks = keystring.split(" ");
      key = SSHKey.new(ks[0][4..6], ks[1], ks[2])

      unless @keys.include? key
        @keys << key
      else
        raise DuplicateSSHPubKey, "Public key is already added to user"
      end
      
      flush
      refresh_keys
      flush_projects_with_user(self)
    end

    def remove_key(key)
      @keys.delete(key)
      flush
      refresh_keys
      flush_projects_with_user(self)
    end

    def refresh_keys
      #File.open(@keypath,"r") do |f|
      #  @keys = f.read.split("\n").select{ |line| line[0..2] == "ssh" }.map{ |ks| k = ks.split(" "); SSHKey.new(k[0][4..6], k[1], k[2]) }
      #end
    end

    def flush
      File.open(@keypath,"w+") do |key_file|
        @keys.each do |key|
          key_file << "#{key.to_s}\n"
        end
      end
    end
  end

  class UserNotFoundError < StandardError
  end
  
end