extends SceneTree

const ControllerFocusNavigationType = preload(
	"res://ui/controller_focus_navigation.gd"
)
const UIReferencePresentationType = preload(
	"res://ui/ui_reference_presentation.gd"
)
const FullscreenMenuPresentationType = preload(
	"res://ui/fullscreen_menu_presentation.gd"
)


func _initialize() -> void:
	call_deferred("_run")


func _run() -> void:
	_validate_spatial_navigation()
	_validate_strict_directional_navigation()
	_validate_disabled_control_exclusion()
	_validate_traversal_cycle()
	_validate_controller_hierarchy_contract()
	_validate_player_page_zone_contracts()
	_validate_shop_navigation_contract()
	_validate_settings_navigation_contract()
	_validate_four_by_three_centering()
	_validate_low_end_profile_contract()
	print("Controller UI navigation validation: PASS")
	quit()


func _validate_spatial_navigation() -> void:
	var host := Control.new()
	root.add_child(host)
	var center := _make_button(host, "center", Vector2(200.0, 200.0))
	var left := _make_button(host, "left", Vector2(50.0, 200.0))
	var right := _make_button(host, "right", Vector2(350.0, 200.0))
	var top := _make_button(host, "top", Vector2(200.0, 50.0))
	var bottom := _make_button(host, "bottom", Vector2(200.0, 350.0))
	var controls: Array[Control] = [center, left, right, top, bottom]
	ControllerFocusNavigationType.configure_spatial_neighbors(controls)
	assert(center.get_node(center.focus_neighbor_left) == left)
	assert(center.get_node(center.focus_neighbor_right) == right)
	assert(center.get_node(center.focus_neighbor_top) == top)
	assert(center.get_node(center.focus_neighbor_bottom) == bottom)
	host.queue_free()


func _validate_strict_directional_navigation() -> void:
	var host := Control.new()
	root.add_child(host)
	var origin := _make_button(host, "origin", Vector2(200.0, 200.0))
	var mostly_below := _make_button(
		host, "mostly_below", Vector2(250.0, 400.0)
	)
	var controls: Array[Control] = [origin, mostly_below]
	ControllerFocusNavigationType.configure_spatial_neighbors(controls)
	assert(origin.get_node(origin.focus_neighbor_right) == origin)
	assert(origin.get_node(origin.focus_neighbor_top) == origin)
	assert(origin.get_node(origin.focus_neighbor_bottom) == mostly_below)
	host.queue_free()


func _validate_disabled_control_exclusion() -> void:
	var host := Control.new()
	root.add_child(host)
	var left := _make_button(host, "left", Vector2(50.0, 100.0))
	var disabled := _make_button(host, "disabled", Vector2(200.0, 100.0))
	var right := _make_button(host, "right", Vector2(350.0, 100.0))
	disabled.disabled = true
	disabled.focus_next = disabled.get_path_to(right)
	ControllerFocusNavigationType.configure_spatial_neighbors(
		[left, disabled, right]
	)
	assert(left.get_node(left.focus_neighbor_right) == right)
	assert(right.get_node(right.focus_neighbor_left) == left)
	assert(disabled.focus_next.is_empty())
	host.queue_free()


func _validate_traversal_cycle() -> void:
	var host := Control.new()
	root.add_child(host)
	var first := _make_button(host, "first", Vector2(50.0, 50.0))
	var second := _make_button(host, "second", Vector2(200.0, 50.0))
	var third := _make_button(host, "third", Vector2(50.0, 150.0))
	var controls: Array[Control] = [third, first, second]
	ControllerFocusNavigationType.configure_spatial_neighbors(controls)
	assert(first.get_node(first.focus_next) == second)
	assert(second.get_node(second.focus_next) == third)
	assert(third.get_node(third.focus_next) == first)
	assert(first.get_node(first.focus_previous) == third)
	host.queue_free()


func _validate_controller_hierarchy_contract() -> void:
	var source: String = FileAccess.get_file_as_string(
		"res://ui/player_menu.gd"
	)
	assert(source.contains("ROLE_LB"))
	assert(source.contains("ROLE_RB"))
	assert(not source.contains("_handle_controller_secondary_switch"))
	assert(source.contains("ControllerOwnership.INVENTORY_TABS"))
	assert(source.contains("ControllerOwnership.SORT_FILTER"))
	assert(source.contains("_reset_controller_zone_for_section"))
	assert(source.contains("preserve_tab_zone"))
	assert(source.contains("active_tab.call_deferred(\"grab_focus\")"))
	assert(source.contains("CONTROLLER_PICKUP_HOLD_SECONDS"))
	assert(source.contains("_reserve_main_navigation_for_page_switching"))
	assert(source.contains(
		"if not _is_inventory_section(_current_section):\n\t\treturn"
	))
	assert(source.contains(
		"_dispatch_active_page_controller_input(cancel_event)"
	))
	assert(source.contains("configure_spatial_neighbors(candidates)"))


func _validate_player_page_zone_contracts() -> void:
	for path: String in [
		"res://ui/logbook_page.gd",
		"res://ui/the_net_page.gd",
		"res://ui/mail_page.gd",
		"res://ui/profile_page.gd",
		"res://ui/players_page.gd",
	]:
		var source: String = FileAccess.get_file_as_string(path)
		assert(source.contains("func reset_controller_zone()"))
		assert(source.contains("func handle_controller_input(event: InputEvent)"))
	var profile_source: String = FileAccess.get_file_as_string(
		"res://ui/profile_page.gd"
	)
	assert(profile_source.contains("ControllerZone.COLOR_PICKER"))
	assert(profile_source.contains("_adjust_controller_color_gamut"))
	assert(profile_source.contains("_customize_button.text = \"customize\""))
	assert(profile_source.contains("_enter_controller_customization"))
	assert(not profile_source.contains(
		"if event.is_action_pressed(\"ui_down\"):\n"
		+ "\t\t\t_controller_zone = ControllerZone.CATEGORIES"
	))
	assert(profile_source.contains(
		"_reset_view_button.focus_mode = Control.FOCUS_NONE"
	))
	var preview_source: String = FileAccess.get_file_as_string(
		"res://ui/profile_preview.gd"
	)
	assert(preview_source.contains("focus_mode = Control.FOCUS_NONE"))
	assert(not preview_source.contains("grab_focus()"))
	var mail_source: String = FileAccess.get_file_as_string(
		"res://ui/mail_page.gd"
	)
	assert(mail_source.contains("_configure_compose_controller_navigation"))
	assert(mail_source.contains("_set_compose_neighbors"))
	var net_source: String = FileAccess.get_file_as_string(
		"res://ui/the_net_page.gd"
	)
	var game_ui_source: String = FileAccess.get_file_as_string(
		"res://ui/game_ui.gd"
	)
	assert(not net_source.contains("ROLE_RIGHT_STICK_Y"))
	assert(game_ui_source.contains("_update_controller_menu_scroll"))


func _validate_shop_navigation_contract() -> void:
	var source: String = FileAccess.get_file_as_string(
		"res://ui/fishing_shop.gd"
	)
	assert(source.contains("ROLE_LB"))
	assert(source.contains("ROLE_RB"))
	assert(source.contains("_configure_controller_focus"))


func _validate_settings_navigation_contract() -> void:
	var settings_scene := load("res://ui/settings_panel.tscn") as PackedScene
	var settings := settings_scene.instantiate() as SettingsPanel
	root.add_child(settings)
	var accessibility_tab := settings.get_node(
		"%AccessibilityTab"
	) as Button
	var auto_click_toggle := settings.get_node("%AutoClickToggle") as Button
	var interval_slider := settings.get_node(
		"%AutoClickIntervalSlider"
	) as HSlider
	var apply_button := settings.get_node("%ApplySettingsButton") as Button
	var back_button := settings.get_node("%SettingsBackButton") as Button
	assert(
		accessibility_tab.get_node(accessibility_tab.focus_neighbor_bottom)
		== auto_click_toggle
	)
	assert(
		auto_click_toggle.get_node(auto_click_toggle.focus_neighbor_bottom)
		== interval_slider
	)
	assert(
		interval_slider.get_node(interval_slider.focus_neighbor_top)
		== auto_click_toggle
	)
	assert(
		interval_slider.get_node(interval_slider.focus_neighbor_bottom)
		== apply_button
	)
	assert(apply_button.get_node(apply_button.focus_neighbor_right) == back_button)
	var reset_scene := load(
		"res://ui/pixelation_reset_overlay.tscn"
	) as PackedScene
	var reset_overlay := reset_scene.instantiate() as PixelationResetOverlay
	root.add_child(reset_overlay)
	settings.show()
	reset_overlay.set_settings_open(true)
	var reset_focus_requested: Array[bool] = [false]
	settings.crisp_reset_focus_requested.connect(func() -> void:
		reset_focus_requested[0] = true
	)
	settings.crisp_reset_focus_requested.connect(
		reset_overlay.focus_reset_button
	)
	var focus_reset_event := InputEventAction.new()
	focus_reset_event.action = &"ui_right"
	focus_reset_event.pressed = true
	settings.call("_on_back_button_gui_input", focus_reset_event)
	assert(reset_focus_requested[0])
	assert(
		root.gui_get_focus_owner()
		== reset_overlay.get_node("%ResetPixelationButton")
	)
	reset_overlay.return_to_settings_requested.connect(
		settings.focus_back_button
	)
	var return_event := InputEventAction.new()
	return_event.action = &"ui_left"
	return_event.pressed = true
	reset_overlay.call("_on_reset_button_gui_input", return_event)
	assert(root.gui_get_focus_owner() == back_button)
	reset_overlay.queue_free()
	settings.queue_free()


func _validate_four_by_three_centering() -> void:
	var display_size := Vector2(640.0, 480.0)
	var stage_position: Vector2 = UIReferencePresentationType.get_stage_position(
		display_size
	)
	assert(stage_position.is_equal_approx(Vector2(0.0, 120.0)))
	assert(FullscreenMenuPresentationType.uses_compact_profile(display_size))
	assert(is_equal_approx(
		FullscreenMenuPresentationType.get_profile_scale(display_size),
		4.0 / 3.0,
	))
	assert(FullscreenMenuPresentationType.get_profile_position(
		display_size
	).is_equal_approx(Vector2(-640.0 / 3.0, -120.0)))
	assert(FullscreenMenuPresentationType.get_source_rect(display_size)
		== Rect2(160.0, 0.0, 960.0, 720.0))


func _validate_low_end_profile_contract() -> void:
	var launcher: String = FileAccess.get_file_as_string(
		"res://scripts/portmaster/NETfishing.sh"
	)
	assert(launcher.contains("NETFISHING_PERFORMANCE_PROFILE:-"))
	assert(launcher.contains("$CONFDIR/performance_profile"))
	assert(launcher.contains("normal)"))
	assert(launcher.contains("light|\"\")"))
	assert(launcher.contains("NETFISHING_PERFORMANCE_PROFILE=normal"))
	assert(launcher.contains("NETFISHING_PERFORMANCE_PROFILE=light"))
	assert(launcher.contains("NETFISHING_LOW_END=1"))
	assert(launcher.contains("--max-fps 30"))
	assert(launcher.contains("--audio-output-latency 40"))
	var builder: String = FileAccess.get_file_as_string(
		"res://scripts/build_portmaster.sh"
	)
	assert(builder.contains("prepare_portmaster_assets.sh"))
	assert(builder.contains("netfishing-portmaster-export"))
	var asset_profile: String = FileAccess.get_file_as_string(
		"res://scripts/prepare_portmaster_assets.sh"
	)
	assert(asset_profile.contains("GENERAL_TEXTURE_LIMIT=128"))
	assert(asset_profile.contains("GAMEPLAY_TEXTURE_LIMIT=64"))
	assert(asset_profile.contains("AUDIO_SAMPLE_RATE=22050"))
	assert(asset_profile.contains("compress/mode=2"))
	assert(asset_profile.contains("fish/species"))
	assert(asset_profile.contains("art/exported/characters"))
	assert(builder.contains("--exclude '/audio/ambience/'"))
	assert(not builder.contains("--exclude '/audio/music/'"))


func _make_button(
	host: Control,
	button_name: String,
	button_position: Vector2,
) -> Button:
	var button := Button.new()
	button.name = button_name
	button.position = button_position
	button.size = Vector2(80.0, 80.0)
	button.focus_mode = Control.FOCUS_ALL
	host.add_child(button)
	return button