workshop

defmodule Workshop.Doctor do
  use Workshop.Validator

  verify "System should have the same major minor version as the creation script" do
    requirement = Workshop.Info.get(Workshop.Meta, :generator_version)
    version = Workshop.version

    cond do
      Version.match?(version, "~> #{requirement}") ->
        :ok

      Version.match?(version, ">= #{requirement}") ->
       {:error, "please downgrade your workshop version, this workshop is build with v#{requirement} "
              <> "you are running v#{version}"}

      :otherwise ->
        {:error, "please upgrade your workshop, this workshop is build with v#{requirement} "
              <> "you are running v#{version}"}
    end
  end

  # This will fetch the result of the prerequisite tests defined for the workshop in *prerequisite.exs*
  verify "Should pass all workshop prerequisite tests" do
    path =
      "prerequisite.exs"
      |> Path.expand(Workshop.Session.get(:data_folder))

    if File.exists? path do
      Code.require_file(path)
      apply(Workshop.Prerequisite, :run, [])
    else
      {:warning, "Could not find a prerequisite file for this workshop"}
    end
  end
end