# frozen_string_literal: true

require_relative "test_helper"

class ConfigTest < Minitest::Test
  def config
    FeatherCaseWizard::Config.create(name: "Bench GPS", slug: "bench-gps")
  end

  def test_default_case_has_expected_parts_and_dimensions
    assert_equal %w[body lid], config.printable_parts
    assert_in_delta 61.6, config.dimensions["length"], 0.01
    assert_in_delta 41.66, config.dimensions["width"], 0.01
    assert_in_delta 12.25, config.parameters["wing_pitch"], 0.001
    assert_in_delta 6.0, config.parameters["gps_antenna_height"], 0.001
    assert_in_delta 2.4, config.parameters["oled_component_height"], 0.001
    assert_in_delta 1.5, config.parameters["oled_display_height"], 0.001
    assert_in_delta 2.0, config.parameters["usb_board_wall_gap"], 0.001
    assert config.parameters["usb_opening_enabled"]
    assert config.parameters["usb_guide_enabled"]
    assert_equal ["3mf"], config.outputs["formats"]
  end

  def test_gps_height_uses_stack_pitch_antenna_height_and_top_gap
    subject = config
    subject.parameters["top_profile"] = "gps"
    parameters = subject.parameters

    expected_electronics_height =
      parameters["wing_pitch"] + parameters["gps_antenna_height"] +
      parameters["gps_top_gap"]

    assert_in_delta 23.25, expected_electronics_height, 0.001
    assert_in_delta 35.85, subject.dimensions["height"] + parameters["lid_thickness"], 0.001
  end

  def test_oled_height_uses_tallest_component_not_display_reference
    subject = config
    subject.parameters["top_profile"] = "oled128x64"
    original_height = subject.dimensions["height"]

    subject.parameters["oled_display_height"] = 10.0

    assert_in_delta original_height, subject.dimensions["height"], 0.001
  end

  def test_older_config_receives_default_oled_display_height
    data = FeatherCaseWizard::Config.deep_copy(config.data)
    data["parameters"].delete("oled_display_height")

    loaded = FeatherCaseWizard::Config.new(data)

    assert_in_delta 1.5, loaded.parameters["oled_display_height"], 0.001
  end

  def test_older_config_preserves_opening_without_enabling_guide
    data = FeatherCaseWizard::Config.deep_copy(config.data)
    data["parameters"].delete("usb_opening_enabled")
    data["parameters"].delete("usb_guide_enabled")

    loaded = FeatherCaseWizard::Config.new(data)

    assert loaded.parameters["usb_opening_enabled"]
    refute loaded.parameters["usb_guide_enabled"]
  end

  def test_usb_guide_requires_opening
    subject = config
    subject.parameters["usb_opening_enabled"] = false

    error = assert_raises(FeatherCaseWizard::ConfigError) { subject.validate! }
    assert_match(/guide requires/, error.message)
  end

  def test_end_clearances_expand_case_length
    subject = config
    subject.parameters["usb_board_wall_gap"] = 20.0
    subject.parameters["board_rear_clearance"] = 20.0

    assert_in_delta 95.6, subject.dimensions["length"], 0.01
  end

  def test_oled_buttons_and_selected_coupons_are_printable
    subject = config
    subject.parameters["top_profile"] = "oled128x64"
    subject.parameters["button_a"] = false
    subject.parameters["button_b"] = true
    subject.outputs["coupons"] = %w[fit_coupon]

    assert_equal %w[body lid buttons fit_coupon], subject.printable_parts
  end

  def test_wall_local_cutouts_map_to_model_coordinates
    subject = config
    length = subject.dimensions["length"]
    width = subject.dimensions["width"]
    subject.data["cutouts"] = [
      cutout("front", 12.0),
      cutout("rear", 13.0),
      cutout("left", 14.0),
      cutout("right", 15.0)
    ]
    result = subject.scad_cutouts

    assert_in_delta width - 12.0, result[0][2], 0.001
    assert_in_delta 13.0, result[1][2], 0.001
    assert_in_delta 14.0, result[2][2], 0.001
    assert_in_delta length - 15.0, result[3][2], 0.001
  end

  def test_cutout_cannot_intersect_floor
    subject = config
    subject.data["cutouts"] = [cutout("rear", 12.0).merge("z" => 2.0)]

    error = assert_raises(FeatherCaseWizard::ConfigError) { subject.validate! }
    assert_match(/floor/, error.message)
  end

  def test_cutouts_on_same_wall_require_minimum_web
    subject = config
    first = cutout("rear", 18.0).merge("name" => "first")
    second = cutout("rear", 24.0).merge("name" => "second")
    subject.data["cutouts"] = [first, second]

    error = assert_raises(FeatherCaseWizard::ConfigError) { subject.validate! }
    assert_match(/too close/, error.message)
  end

  def test_front_cutout_cannot_overlap_usb_opening
    subject = config
    subject.data["cutouts"] = [
      cutout("front", subject.dimensions["width"] / 2).merge("z" => 11.0)
    ]

    error = assert_raises(FeatherCaseWizard::ConfigError) { subject.validate! }
    assert_match(/USB opening or guide/, error.message)
  end

  def test_front_cutout_can_clear_usb_reservation
    subject = config
    subject.data["cutouts"] = [cutout("front", 10.0).merge("z" => 11.0)]

    assert_same subject, subject.validate!
  end

  def test_yaml_round_trip_preserves_resolved_cutouts
    subject = config
    subject.data["cutouts"] = [cutout("left", 20.0)]

    Dir.mktmpdir do |directory|
      path = File.join(directory, "case.yml")
      File.write(path, subject.to_yaml)
      loaded = FeatherCaseWizard::Config.load(path)
      assert_equal subject.data["cutouts"], loaded.data["cutouts"]
      assert_equal subject.scad_cutouts, loaded.data.dig("resolved", "extra_cutouts")
    end
  end

  def test_unsafe_yaml_is_rejected
    Dir.mktmpdir do |directory|
      path = File.join(directory, "case.yml")
      File.write(path, "--- !ruby/object:Object {}\n")
      assert_raises(FeatherCaseWizard::ConfigError) do
        FeatherCaseWizard::Config.load(path)
      end
    end
  end

  private

  def cutout(face, horizontal)
    {
      "name" => "#{face}-cable",
      "face" => face,
      "shape" => "roundrect",
      "horizontal" => horizontal,
      "z" => 12.0,
      "width" => 6.0,
      "height" => 4.0,
      "radius" => 1.0
    }
  end
end