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

# insert your copyright here

require 'openstudio'
require 'openstudio/measure/ShowRunnerOutput'
require 'minitest/autorun'
require_relative '../measure.rb'
require 'fileutils'

class GEBMetricsReportTest < Minitest::Test
  def model_in_path_default
    # return "#{File.dirname(__FILE__)}/SmallOfficeDetailed_90.1-2010_5A.osm"
    # return "#{File.dirname(__FILE__)}/small_office_simple.osm"
    # return "#{File.dirname(__FILE__)}/small_office_simple_w_CO2.osm"
    return "#{File.dirname(__FILE__)}/small_office_simple_w_CO2_daylighting.osm"
  end

  def epw_path_default
    # make sure we have a weather data location
    epw = File.expand_path("#{File.dirname(__FILE__)}/CZ06RV2.epw")
    assert(File.exist?(epw.to_s))
    return epw.to_s
  end

  def run_dir(test_name)
    # always generate test output in specially named 'output' directory so result files are not made part of the measure
    return "#{File.dirname(__FILE__)}/output/#{test_name}"
  end

  def model_out_path(test_name)
    return "#{run_dir(test_name)}/example_model.osm"
  end

  def sql_path(test_name)
    return "#{run_dir(test_name)}/run/eplusout.sql"
  end

  def workspace_path(test_name)
    return "#{run_dir(test_name)}/run/in.idf"
  end

  def report_path(test_name)
    return "#{run_dir(test_name)}/report.html"
  end

  # method for running the test simulation using OpenStudio 2.x API
  def setup_test_2(test_name, epw_path)
    osw_path = File.join(run_dir(test_name), 'in.osw')
    osw_path = File.absolute_path(osw_path)

    workflow = OpenStudio::WorkflowJSON.new
    workflow.setSeedFile(File.absolute_path(model_out_path(test_name)))
    workflow.setWeatherFile(File.absolute_path(epw_path))
    workflow.saveAs(osw_path)

    cli_path = OpenStudio.getOpenStudioCLI
    cmd = "\"#{cli_path}\" run -w \"#{osw_path}\""
    puts cmd
    system(cmd)
  end

  # create test files if they do not exist when the test first runs
  def setup_test(test_name, idf_output_requests, model_in_path = model_in_path_default, epw_path = epw_path_default)
    if !File.exist?(run_dir(test_name))
      FileUtils.mkdir_p(run_dir(test_name))
    end
    assert(File.exist?(run_dir(test_name)))

    if File.exist?(report_path(test_name))
      FileUtils.rm(report_path(test_name))
    end

    assert(File.exist?(model_in_path))

    if File.exist?(model_out_path(test_name))
      FileUtils.rm(model_out_path(test_name))
    end

    # convert output requests to OSM for testing, OS App and PAT will add these to the E+ Idf
    workspace = OpenStudio::Workspace.new('Draft'.to_StrictnessLevel, 'EnergyPlus'.to_IddFileType)
    workspace.addObjects(idf_output_requests)
    rt = OpenStudio::EnergyPlus::ReverseTranslator.new
    request_model = rt.translateWorkspace(workspace)

    translator = OpenStudio::OSVersion::VersionTranslator.new
    model = translator.loadModel(model_in_path)
    assert(!model.empty?)
    model = model.get
    model.addObjects(request_model.objects)
    model.save(model_out_path(test_name), true)

    if ENV['OPENSTUDIO_TEST_NO_CACHE_SQLFILE']
      if File.exist?(sql_path(test_name))
        FileUtils.rm_f(sql_path(test_name))
      end
    end

    # Run the OSW (only need to run for the first time or when new variable is requested)
    # setup_test_2(test_name, epw_path)
  end

  def load_osm
    # load the test model
    translator = OpenStudio::OSVersion::VersionTranslator.new
    model = translator.loadModel(model_in_path_default)
    assert(!model.empty?)
    model.get
  end

  def test_geb_metrics_report
    test_name = 'run_geb_measures'

    # create an instance of the measure
    measure = GEBMetricsReport.new

    # create runner with empty OSW
    osw = OpenStudio::WorkflowJSON.new
    runner = OpenStudio::Measure::OSRunner.new(osw)

    # get arguments
    model = load_osm
    arguments = measure.arguments
    argument_map = OpenStudio::Measure.convertOSArgumentVectorToMap(arguments)

    args_hash = {}
    args_hash['baseline_run_output_path'] = File.dirname(__FILE__ )
    args_hash['event_date'] = '07-21'
    args_hash['shed_start'] = '13:00'
    args_hash['shed_end'] = '15:00'
    args_hash['take_start'] = '10:00'
    args_hash['take_end'] = '13:00'

    # populate argument with specified hash value if specified
    arguments.each do |arg|
      temp_arg_var = arg.clone
      if args_hash.key?(arg.name)
        assert(temp_arg_var.setValue(args_hash[arg.name]))
      end
      argument_map[arg.name] = temp_arg_var
    end


    # idf_output_requests = measure.energyPlusOutputRequests(runner, argument_map)
    idf_output_requests = []

    # mimic the process of running this measure in OS App or PAT. Optionally set custom model_in_path and custom epw_path.
    epw_path = epw_path_default
    setup_test(test_name, idf_output_requests)

    assert(File.exist?(model_out_path(test_name)))
    assert(File.exist?(sql_path(test_name)))
    assert(File.exist?(epw_path))

    puts '~~ ' * 50
    puts model_out_path(test_name)
    puts sql_path(test_name)
    puts epw_path

    # set up runner, this will happen automatically when measure is run in PAT or OpenStudio
    runner.setLastOpenStudioModelPath(OpenStudio::Path.new(model_out_path(test_name)))
    runner.setLastEnergyPlusWorkspacePath(OpenStudio::Path.new(workspace_path(test_name)))
    runner.setLastEpwFilePath(epw_path)
    runner.setLastEnergyPlusSqlFilePath(OpenStudio::Path.new(sql_path(test_name)))

    # delete the output if it exists
    if File.exist?(report_path(test_name))
      FileUtils.rm(report_path(test_name))
    end
    assert(!File.exist?(report_path(test_name)))

    # temporarily change directory to the run directory and run the measure
    start_dir = Dir.pwd
    begin
      Dir.chdir(run_dir(test_name))

      # run the measure
      measure.run(runner, argument_map)
      result = runner.result
      show_output(result)
      # puts '+ ' * 40
      # puts result
      assert_equal('Success', result.value.valueName)
      puts '===> Warnings: '
      result.warnings.each do |warning|
        puts warning.logMessage
      end
      assert(result.warnings.empty?)
    ensure
      Dir.chdir(start_dir)
    end

    # make sure the report file exists
    assert(File.exist?(report_path(test_name)))
  end
end