# frozen_string_literal: true

require "test_helper"
require "stringio"

class WizardTest < Minitest::Test
  def test_blank_input_accepts_false_default
    answer, output = ask_yes_no("\n", false)

    refute answer
    assert_includes output, "|no|"
    refute_includes output, 'Please enter "yes" or "no".'
  end

  def test_blank_input_accepts_true_default
    answer, output = ask_yes_no("\n", true)

    assert answer
    assert_includes output, "|yes|"
    refute_includes output, 'Please enter "yes" or "no".'
  end

  def test_explicit_answers_override_defaults
    { "yes\n" => true, "y\n" => true, "no\n" => false, "n\n" => false }.each do |input, expected|
      answer, = ask_yes_no(input, !expected)
      assert_equal expected, answer, "expected #{input.inspect} to override the default"
    end
  end

  def test_selects_a_new_named_model
    Dir.mktmpdir do |dir|
      output = StringIO.new
      wizard = MoonModel::Wizard.new(io: HighLine.new(StringIO.new("My Moon\n"), output), output_root: dir)

      values = wizard.send(:select_model)

      assert_equal "My Moon", values.dig("output", "name")
      refute Dir.exist?(File.join(dir, "My_Moon"))
    end
  end

  def test_existing_model_can_seed_revision_defaults
    Dir.mktmpdir do |dir|
      model = File.join(dir, "Saved_Moon")
      Dir.mkdir(model)
      config = MoonModel::Config.new("vertical_exaggeration" => 5, "output" => { "name" => "Saved Moon" })
      config.save(File.join(model, "config.yml"))
      File.write(File.join(model, "manifest.md"), "Generated by MoonModel test")
      output = StringIO.new
      wizard = MoonModel::Wizard.new(io: HighLine.new(StringIO.new("Saved Moon\n\n"), output), output_root: dir)

      values = wizard.send(:select_model)

      assert_equal 5, values["vertical_exaggeration"]
      assert_equal "Saved Moon", values.dig("output", "name")
      assert_includes output.string, "Revise the existing Saved Moon model?"
    end
  end

  def test_warns_when_user_chooses_less_than_recommended_stand_clearance
    output = StringIO.new
    highline = HighLine.new(StringIO.new("\n\n5\n"), output)
    wizard = MoonModel::Wizard.new(io: highline)
    values = { "purpose" => "display", "assembly" => "auto" }

    wizard.send(:purpose, values)

    assert_equal 5.0, values.dig("stand", "base_clearance_mm")
    assert_includes output.string, "waive the recommended terrain safety margin"
  end

  private

  def ask_yes_no(input, default)
    output = StringIO.new
    highline = HighLine.new(StringIO.new(input), output)
    wizard = MoonModel::Wizard.new(io: highline)
    [wizard.send(:yes_no, "Continue?", default), output.string]
  end
end