# Copyright 2020 OMG Network Pte Ltd
#
# 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 Support.SnapshotContracts do
  @moduledoc """
  Provides facilities to use contracts from the `geth` snapshot including the `plasma-contracts` dev deployment
  """

  def parse_contracts() do
    local_umbrella_path = Path.join([File.cwd!(), "../../", "localchain_contract_addresses.env"])

    contract_addreses_path =
      case File.exists?(local_umbrella_path) do
        true ->
          local_umbrella_path

        _ ->
          # CI/CD
          Path.join([File.cwd!(), "localchain_contract_addresses.env"])
      end

    contract_addreses_path
    |> File.read!()
    |> String.split("\n", trim: true)
    |> List.flatten()
    |> Enum.reduce(%{}, fn line, acc ->
      [key, value] = String.split(line, "=")
      Map.put(acc, key, value)
    end)
  end
end
