# Copyright 2018 Faraz Haider. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

defmodule CSMT.Types do
  @type hash_algorithm :: :md5 | :sha | :sha224 | :sha256 | :sha384 | :sha512
  @type hash :: binary
  @type backend :: [{binary, binary}, ...]
  @type values :: [binary, ...]
  @type children :: [binary] | []
  @type tree_id :: binary
  @type tree_name :: binary
  @type size :: pos_integer

  @type tree :: %CSMT.Trees.Tree{
          treeId: tree_id,
          treeName: tree_name,
          hashFunction: hash_algorithm,
          root: hash,
          size: size,
          backend: backend
        }

  @type tree_node :: %CSMT.Nodes.Node{
          treeId: tree_id,
          hash: hash,
          children: children,
          size: size,
          metadata: binary
        }

  @type direction :: binary

  @type audit_proof :: term
end