class_name Square
extends Node2D

# ============================================================================
# Square.gd - 广场场景控制器
# ============================================================================
# 负责广场玩家出生点和玩家相机边界配置，避免运行时看到地图外区域。
# ============================================================================

const CAMERA_ZOOM: Vector2 = Vector2(2.0, 2.0)
const CAMERA_LIMIT_LEFT: int = -1280
const CAMERA_LIMIT_TOP: int = -960
const CAMERA_LIMIT_RIGHT: int = 1280
const CAMERA_LIMIT_BOTTOM: int = 960
const WELCOME_DIALOG_SCENE: PackedScene = preload("res://scenes/ui/welcome_dialog.tscn")
const WELCOME_DIALOG_NAME: String = "WelcomeDialog"

@onready var player: PlayerController = $YSortWorld/Characters/Players/Player
@onready var playerCamera: Camera2D = $YSortWorld/Characters/Players/Player/Camera2D
@onready var overviewCamera: Camera2D = $Camera2D

func _ready() -> void:
	_apply_spawn_point()
	_configure_camera()
	_discover_destination()
	call_deferred("_show_registration_welcome")

func _show_registration_welcome() -> void:
	var auth_manager: Node = get_node_or_null("/root/AuthManager")
	if auth_manager == null or not auth_manager.has_method("consume_registration_welcome"):
		return
	if not bool(auth_manager.call("consume_registration_welcome")):
		return
	var root: Window = get_tree().root
	if root.has_node(WELCOME_DIALOG_NAME):
		return
	var dialog: CanvasLayer = WELCOME_DIALOG_SCENE.instantiate() as CanvasLayer
	if dialog == null:
		return
	dialog.name = WELCOME_DIALOG_NAME
	root.add_child(dialog)

func _discover_destination() -> void:
	var destination_id := SceneManager.get_next_destination_id()
	if destination_id.is_empty():
		destination_id = "square_center"
	var socialManager := get_node_or_null("/root/SocialManager")
	if socialManager != null and socialManager.has_method("discover_destination"):
		socialManager.call("discover_destination", destination_id)

func _apply_spawn_point() -> void:
	if player.has_scene_position_override:
		return
	var spawnName: String = SceneManager.get_next_spawn_name()
	var markerName: String = spawnName if not spawnName.is_empty() else "DefaultSpawn"
	var marker := $Markers.get_node_or_null(markerName) as Marker2D
	if marker == null:
		marker = $Markers/DefaultSpawn
	player.global_position = marker.global_position

func _configure_camera() -> void:
	overviewCamera.enabled = false
	playerCamera.enabled = true
	playerCamera.make_current()
	playerCamera.zoom = CAMERA_ZOOM
	playerCamera.position_smoothing_enabled = true
	playerCamera.limit_left = CAMERA_LIMIT_LEFT
	playerCamera.limit_top = CAMERA_LIMIT_TOP
	playerCamera.limit_right = CAMERA_LIMIT_RIGHT
	playerCamera.limit_bottom = CAMERA_LIMIT_BOTTOM
	playerCamera.limit_smoothed = true