extends Node3D

@onready var player: FPVController = $PlayerFPV
@onready var gift_box: Interactable = $GiftBox
@onready var system_unit: Node3D = $SystemUnit
@onready var note: Interactable = $SystemUnit/Note
@onready var flash_drive: Interactable = $Desk/FlashDrive
@onready var door: Interactable = $WallE/Door
@onready var father: Node3D = $FatherNPC

enum State { INTRO, EXPLORE_GIFT, INSIDE_GIFT, NOTE_READ, FATHER_FAREWELL, SEEK_DRIVE, ENDING }
var state: State = State.INTRO


func _ready() -> void:
	_apply_textures()

	player.interactable_focused.connect(_on_player_focused)
	player.interactable_unfocused.connect(_on_player_unfocused)

	DialogManager.set_date_time(GameState.game_date, GameState.game_time)
	DialogManager.set_crosshair_visible(true)
	DialogManager.set_controls_hint("WASD ходить · мышь смотреть · ЛКМ взаимодействие · ESC мышь · Q выход")

	# Если возвращаемся из кухни — пропускаем интро
	if GameState.act1_father_left:
		_setup_post_intro_state()
	else:
		await _play_intro()


func _apply_textures() -> void:
	var floor_mat: BaseMaterial3D = ($Floor/Mesh as MeshInstance3D).material_override
	TextureGen.apply_to_material(floor_mat, TextureGen.linoleum(), Vector3(8, 8, 8))

	var ceiling_mat: BaseMaterial3D = ($Ceiling/Mesh as MeshInstance3D).material_override
	TextureGen.apply_to_material(ceiling_mat, TextureGen.ceiling(), Vector3(6, 6, 6))

	for wall_path in ["WallN", "WallS", "WallE", "WallW"]:
		var wall_node: Node = get_node(wall_path)
		var wall_mat: BaseMaterial3D = (wall_node.get_node("Mesh") as MeshInstance3D).material_override
		TextureGen.apply_to_material(wall_mat, TextureGen.wallpaper(), Vector3(8, 5, 8))

	var carpet_mat: BaseMaterial3D = ($WallS/WallCarpet as MeshInstance3D).material_override
	TextureGen.apply_to_material(carpet_mat, TextureGen.wall_carpet(), Vector3(1, 1, 1))

	var blanket_mat: BaseMaterial3D = ($Bed/Blanket as MeshInstance3D).material_override
	TextureGen.apply_to_material(blanket_mat, TextureGen.blanket(), Vector3(2, 2, 2))

	var csgo_mat: BaseMaterial3D = ($WallN/PosterCSGO as MeshInstance3D).material_override
	TextureGen.apply_to_material(csgo_mat, TextureGen.poster_csgo(), Vector3(1, 1, 1))

	var morgen_mat: BaseMaterial3D = ($WallN/PosterMorgen as MeshInstance3D).material_override
	TextureGen.apply_to_material(morgen_mat, TextureGen.poster_morgen(), Vector3(1, 1, 1))

	var desk_mat: BaseMaterial3D = ($Desk/Mesh as MeshInstance3D).material_override
	TextureGen.apply_to_material(desk_mat, TextureGen.desk_white(), Vector3(2, 2, 2))

	var door_panel_mat: BaseMaterial3D = ($WallE/DoorPanel as MeshInstance3D).material_override
	TextureGen.apply_to_material(door_panel_mat, TextureGen.door(), Vector3(1, 1, 1))

	# Книги
	var book_letters: Array[String] = ["A", "B", "C", "D", "E"]
	for i in range(book_letters.size()):
		var book_node: Node = $Shelf.get_node("Book" + book_letters[i])
		if book_node != null and book_node is MeshInstance3D:
			var book_mat: BaseMaterial3D = (book_node as MeshInstance3D).material_override
			TextureGen.apply_to_material(book_mat, TextureGen.book_color(i), Vector3(1, 1, 1))


func _play_intro() -> void:
	system_unit.visible = false
	note.visible = false
	gift_box.set_interactable(false)
	flash_drive.set_interactable(false)
	door.set_interactable(false)

	player.lock_input()
	DialogManager.set_objective("Распакуй подарок от бати")

	await get_tree().create_timer(0.8).timeout
	await DialogManager.say("ОТЕЦ", "Ну? Чё стоишь. Распаковывай давай. Сам собирал, между прочим — полночи не спал.")
	await DialogManager.think("Так… новый пека? Серьёзно? После моего динозавра?")

	state = State.EXPLORE_GIFT
	gift_box.set_interactable(true)
	player.unlock_input()


func _setup_post_intro_state() -> void:
	# Возвращение из кухни — отец уже ушёл
	system_unit.visible = true
	note.visible = false
	gift_box.visible = false
	gift_box.set_interactable(false)
	note.set_interactable(false)
	father.visible = false
	state = State.SEEK_DRIVE
	flash_drive.set_interactable(true)
	door.set_interactable(true)
	DialogManager.set_objective("Возьми флешку с Шиндовс")


func _on_player_focused(obj: Node) -> void:
	if obj.has_method("get_prompt"):
		DialogManager.set_prompt(obj.get_prompt())


func _on_player_unfocused() -> void:
	DialogManager.clear_prompt()


func _on_gift_interacted(_p: Node) -> void:
	if state != State.EXPLORE_GIFT:
		return
	state = State.INSIDE_GIFT
	GameState.act1_gift_opened = true
	gift_box.set_interactable(false)
	gift_box.visible = false
	system_unit.visible = true
	note.visible = true
	note.set_interactable(true)
	DialogManager.clear_prompt()
	DialogManager.set_objective("Прочитай записку")


func _on_note_interacted(_p: Node) -> void:
	if state != State.INSIDE_GIFT:
		return
	state = State.NOTE_READ
	GameState.act1_note_read = true
	note.set_interactable(false)
	player.lock_input()
	DialogManager.clear_prompt()

	await DialogManager.show_note("«Не сожги. Пароль от Wi-Fi на холодильнике. — Бать»")
	await DialogManager.think("Бать ну ты красавчик конечно.")

	state = State.FATHER_FAREWELL
	await DialogManager.say("ОТЕЦ", "Флешка с Шиндой на столе. Ставь сам, не маленький. Если запорешь — сам и переставляй.")

	await _walk_father_out()
	father.visible = false
	GameState.act1_father_left = true

	state = State.SEEK_DRIVE
	flash_drive.set_interactable(true)
	door.set_interactable(true)
	DialogManager.set_objective("Возьми флешку с Шиндовс")
	player.unlock_input()


func _walk_father_out() -> void:
	# Отец поворачивается лицом к двери (восток = +X) и шагает в неё
	var leg_l: Node3D = father.get_node("LegL")
	var leg_r: Node3D = father.get_node("LegR")
	var arm_l: Node3D = father.get_node("ArmL")
	var arm_r: Node3D = father.get_node("ArmR")

	# Поворот корпуса к двери (Y rotation -90° → лицом на восток)
	var turn_tween: Tween = create_tween()
	turn_tween.tween_property(father, "rotation:y", -PI / 2.0, 0.3)
	await turn_tween.finished

	# Шагание: 4 шага по 0.35 сек, общий путь 1.0 м на восток
	var initial_x: float = father.position.x
	var walk_duration: float = 1.4
	var walk_distance: float = 1.0
	var steps: int = 4

	var walk_tween: Tween = create_tween()
	walk_tween.set_parallel(true)
	# Движение
	walk_tween.tween_property(father, "position:x", initial_x + walk_distance, walk_duration)
	# Покачивание тела
	walk_tween.tween_method(
		func(t: float) -> void:
			father.position.y = abs(sin(t * PI * float(steps))) * 0.04,
		0.0, 1.0, walk_duration
	)
	# Махание ногами
	walk_tween.tween_method(
		func(t: float) -> void:
			var ang: float = sin(t * PI * float(steps)) * 0.4
			leg_l.rotation.x = ang
			leg_r.rotation.x = -ang
			arm_l.rotation.x = -ang * 0.6
			arm_r.rotation.x = ang * 0.6,
		0.0, 1.0, walk_duration
	)
	await walk_tween.finished


func _on_door_interacted(_p: Node) -> void:
	if state != State.SEEK_DRIVE:
		return
	SceneManager.go_kitchen()


func _on_drive_interacted(_p: Node) -> void:
	if state != State.SEEK_DRIVE:
		return
	state = State.ENDING
	GameState.act1_drive_taken = true
	flash_drive.set_interactable(false)
	door.set_interactable(false)
	player.lock_input()
	DialogManager.clear_prompt()
	DialogManager.set_objective("")

	await DialogManager.think("Ну ладно. Андрюхино так Андрюхино. Поехали.")
	await DialogManager.say("СИСТЕМА", "Конец Акта 1. Запускаю Акт 2 — Установка Шиндовс…")
	GameState.game_time = "10:42"
	SceneManager.go_install()