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spawn_statestores

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Spawn Statestores is the storage lib for the Spawn Actors System

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spawn_statestores lib statestores util.ex
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lib/statestores/util.ex 

defmodule Statestores.Util do

  @moduledoc false

  @otp_app :spawn_statestores



  @type adapter :: term()



  @spec load_app :: :ok | {:error, any}

  def load_app do

    Application.load(@otp_app)

  end



  @spec load_adapter :: adapter()

  def load_adapter() do

    case Application.fetch_env(@otp_app, :database_adapter) do

      {:ok, value} ->

        value



      :error ->

        type =

          String.to_existing_atom(

            System.get_env("PROXY_DATABASE_TYPE", get_default_database_type())

          )



        load_adapter_by_type(type)

    end

  end



  def get_default_database_type do

    cond do

      Code.ensure_loaded?(Statestores.Adapters.MySQL) -> "mysql"

      Code.ensure_loaded?(Statestores.Adapters.CockroachDB) -> "cockroachdb"

      Code.ensure_loaded?(Statestores.Adapters.Postgres) -> "postgres"

      Code.ensure_loaded?(Statestores.Adapters.SQLite3) -> "sqlite"

      Code.ensure_loaded?(Statestores.Adapters.MSSQL) -> "mssql"

      true -> nil

    end

  end



  defp load_adapter_by_type(:mysql), do: Statestores.Adapters.MySQL



  defp load_adapter_by_type(:cockroachdb), do: Statestores.Adapters.CockroachDB



  defp load_adapter_by_type(:postgres), do: Statestores.Adapters.Postgres



  defp load_adapter_by_type(:sqlite), do: Statestores.Adapters.SQLite3



  defp load_adapter_by_type(:mssql), do: Statestores.Adapters.MSSQL



  @spec get_default_database_port :: <<_::32>>

  def get_default_database_port() do

    load_adapter().default_port()

  end

end