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require 'u3d/log_analyzer'
require 'json'

class CustomExpectations
  include RSpec::Matchers

  def phase_active(phases)
    expect(phases).to have_key('TEST_ACTIVE')
  end

  def phase_not_active(phases)
    expect(phases).not_to have_key('TEST_NOT_ACTIVE')
  end

  def silent_phase_use(phases)
    expect(phases).to have_key('TEST')
  end

  def silent_phase_rules(phases)
    expect(phases['TEST']['rules']).to be_empty
  end

  def phase_start_pattern_parsing(phases)
    expect(phases['TEST']['phase_start_pattern']).to eql(/This is a pattern/)
  end
end

rules_data_file = File.expand_path('../data/rules_data.json', __dir__)

log_analyzer_fixtures = Dir.glob(File.join(File.expand_path('../fixtures/log_analyzer', __dir__), "*.log"))

describe U3d do
  describe U3d::LogAnalyzer do
    describe '.load_rules custom' do
      data = JSON.parse(File.read(rules_data_file))
      data.each do |key, test_cases|
        it test_cases['message'] do
          allow(File).to receive(:read) { test_cases['ruleset'].to_json }

          _gen, parsed_phases = U3d::LogAnalyzer.new.load_rules
          CustomExpectations.new.public_send(key, parsed_phases)
        end
      end
    end
    describe '.load_rules default' do
      it "loads defaults rules without problem" do
        gen, phases = U3d::LogAnalyzer.new.load_rules
        expect(gen.keys.count).to be > 5
        expect(phases.keys).to eq %w[LICENSE INIT COMPILER ASSET]
      end

      describe '.load_rules default' do
        log_analyzer_fixtures.each do |log|
          it "parses #{log} as expected" do
            expected_output_file = "#{log}.u3d"
            raise "missing expectation in #{expected_output_file}" unless File.exist?(expected_output_file)

            log_buffer = StringIO.new
            U3dCore::UI.current = U3dCore::Shell.new(test_log_buffer: log_buffer)

            analyzer = U3d::LogAnalyzer.new
            File.open(log, 'r') do |f|
              f.readlines.each { |l| analyzer.parse_line l }
            end
            expected_output = File.read expected_output_file

            expect(log_buffer.string).to eq(expected_output)

            U3dCore::UI.current = nil
          end
        end
      end
    end
  end
end
