# *******************************************************************************
# OpenStudio(R), Copyright (c) Alliance for Sustainable Energy, LLC.
# See also https://openstudio.net/license
# *******************************************************************************

# see the URL below for information on how to write OpenStudio measures
# http://openstudio.nrel.gov/openstudio-measure-writing-guide

# see your EnergyPlus installation or the URL below for information on EnergyPlus objects
# http://apps1.eere.energy.gov/buildings/energyplus/pdfs/inputoutputreference.pdf

# see the URL below for information on using life cycle cost objects in OpenStudio
# http://openstudio.nrel.gov/openstudio-life-cycle-examples

# see the URL below for access to C++ documentation on workspace objects (click on "workspace" in the main window to view workspace objects)
# http://openstudio.nrel.gov/sites/openstudio.nrel.gov/files/nv_data/cpp_documentation_it/utilities/html/idf_page.html

# start the measure
class InjectIDFObjects < OpenStudio::Measure::EnergyPlusMeasure
  # define the name that a user will see, this method may be deprecated as
  # the display name in PAT comes from the name field in measure.xml
  def name
    return ' Inject IDF Objects'
  end

  # define the arguments that the user will input
  def arguments(workspace)
    args = OpenStudio::Ruleset::OSArgumentVector.new

    # make an argument for external idf
    source_idf_path = OpenStudio::Ruleset::OSArgument.makeStringArgument('source_idf_path', true)
    source_idf_path.setDisplayName('External IDF File Name')
    source_idf_path.setDescription('Name of the IDF file to inject objects from. This is the filename with the extension (e.g. MyModel.idf). Optionally this can inclucde the full file path, but for most use cases should just be file name.')
    args << source_idf_path

    return args
  end

  # define what happens when the measure is run
  def run(workspace, runner, user_arguments)
    super(workspace, runner, user_arguments)

    # use the built-in error checking
    if !runner.validateUserArguments(arguments(workspace), user_arguments)
      return false
    end

    # assign the user inputs to variables
    source_idf_path = runner.getStringArgumentValue('source_idf_path', user_arguments)

    # report initial condition
    runner.registerInitialCondition("The initial IDF file had #{workspace.objects.size} objects.")

    # find source_idf_path
    osw_file = runner.workflow.findFile(source_idf_path)
    if osw_file.is_initialized
      source_idf_path = osw_file.get.to_s
    else
      runner.registerError("Did not find #{source_idf_path} in paths described in OSW file.")
      return false
    end

    # load IDF
    source_idf = OpenStudio::IdfFile.load(OpenStudio::Path.new(source_idf_path)).get

    # add everything from the file
    workspace.addObjects(source_idf.objects)

    # report final condition
    runner.registerFinalCondition("The final IDF file had #{workspace.objects.size} objects.")

    return true
  end
end

# this allows the measure to be use by the application
InjectIDFObjects.new.registerWithApplication