class_name CafeInterior
extends Node2D

# ============================================================================
# CafeInterior.gd - 鲸鱼咖啡馆室内场景控制器
# ============================================================================
# 承载咖啡馆挂机服务大厅，负责玩家出生点、相机边界和返回工作区。
# ============================================================================

const CAMERA_ZOOM: Vector2 = Vector2(1.65, 1.65)
const CAMERA_LIMIT_LEFT: int = -768
const CAMERA_LIMIT_TOP: int = -512
const CAMERA_LIMIT_RIGHT: int = 768
const CAMERA_LIMIT_BOTTOM: int = 512
const WORK_ZONE_CAFE_RETURN_POSITION: Vector2 = Vector2(-1093, 560)
const CAFE_DOOR_POSITION: Vector2 = Vector2(0, 392)
const WORLD_TEXT_THEME = preload("res://assets/ui/world_text_theme.tres")
const COMPANION_NAMEPLATE_RENDER_SCALE: float = 0.5
const COMPANION_NAMEPLATE_FONT_SIZE: int = 24
const COMPANION_NAMEPLATE_VISUAL_HEIGHT: int = 22
const COMPANION_NAMEPLATE_VISUAL_MIN_WIDTH: int = 76
const COMPANION_NAMEPLATE_VISUAL_MAX_WIDTH: int = 118
const COMPANION_NAMEPLATE_VISUAL_CHAR_WIDTH: int = 12
const NPC_NAMEPLATE_OFFSET_Y: float = -136.0
const HIRED_PLAYER_NAMEPLATE_OFFSET_Y: float = -96.0
const InteractionAnchorUtil = preload("res://_Core/utils/InteractionAnchor.gd")

@onready var player: PlayerController = $YSortWorld/Characters/Players/Player
@onready var playerCamera: Camera2D = $YSortWorld/Characters/Players/Player/Camera2D
@onready var hiredPlayerCompanionTarget: CafeCompanionTarget = $YSortWorld/Characters/Players/Player/CafeHiredCompanionTarget
@onready var hiredPlayerNameplate: Label = $YSortWorld/Characters/Players/Player/CafeHiredCompanionNameplate
@onready var exitToWorkZoneArea: Area2D = $InteractionAreas/ExitToWorkZoneArea
@onready var cafeRecruitmentLogoArea: Area2D = $InteractionAreas/CafeRecruitmentLogoArea
@onready var serviceIdlePoint01: Marker2D = $Markers/ServiceIdlePoints/ServiceIdlePoint01
@onready var cafeWhaleBaristaNpc: NPCController = $YSortWorld/Characters/CafeWhaleBaristaNpc
@onready var cafeCompanionNameplate: Label = $YSortWorld/Characters/CafeWhaleBaristaNpc/CafeCompanionNameplate

var _isChangingScene: bool = false
var _lastRecruitmentClickMsec: int = 0

func _ready() -> void:
	add_to_group("whaletown_interactable")
	_align_service_occupants()
	_configure_static_companion_nameplates()
	_apply_spawn_point()
	_configure_camera()
	_connect_exit_area()
	_connect_recruitment_area()
	_connect_cafe_companion_events()
	_discover_destination()

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

func _exit_tree() -> void:
	var eventSystem := get_node_or_null("/root/EventSystem")
	if eventSystem != null:
		eventSystem.call("disconnect_event", EventNames.CAFE_COMPANION_AGENT_REGISTERED, _on_cafe_companion_agent_registered, self)
		eventSystem.call("disconnect_event", EventNames.CAFE_COMPANION_EMPLOYMENT_RESIGNED, _on_cafe_companion_employment_resigned, self)

func _align_service_occupants() -> void:
	cafeWhaleBaristaNpc.global_position = serviceIdlePoint01.global_position

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:
	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

func _connect_exit_area() -> void:
	exitToWorkZoneArea.collision_mask = 0

func _connect_recruitment_area() -> void:
	cafeRecruitmentLogoArea.input_pickable = true
	if not cafeRecruitmentLogoArea.input_event.is_connected(_on_recruitment_area_input_event):
		cafeRecruitmentLogoArea.input_event.connect(_on_recruitment_area_input_event)
	set_process_unhandled_input(true)

func _connect_cafe_companion_events() -> void:
	var eventSystem := get_node_or_null("/root/EventSystem")
	if eventSystem == null:
		return
	eventSystem.call("connect_event", EventNames.CAFE_COMPANION_AGENT_REGISTERED, _on_cafe_companion_agent_registered, self)
	eventSystem.call("connect_event", EventNames.CAFE_COMPANION_EMPLOYMENT_RESIGNED, _on_cafe_companion_employment_resigned, self)

func _on_exit_area_body_entered(body: Node2D) -> void:
	return

func get_interaction_actions(local_player: Node2D) -> Array[Dictionary]:
	if _isChangingScene or exitToWorkZoneArea == null:
		return []
	var anchor_position: Vector2 = InteractionAnchorUtil.get_position(exitToWorkZoneArea)
	var distance: float = anchor_position.distance_to(local_player.global_position)
	if distance > 160.0:
		return []
	return [{
		"id": "cafe_exit",
		"title": "离开咖啡馆",
		"distance": distance,
		"priority": 20,
		"callback": Callable(self, "_leave_to_work_zone"),
	}]

func get_interaction_marker_positions() -> Array[Vector2]:
	if exitToWorkZoneArea == null:
		return []
	return [InteractionAnchorUtil.get_position(exitToWorkZoneArea)]

func _leave_to_work_zone() -> void:
	if _isChangingScene:
		return
	_isChangingScene = true
	SceneManager.set_next_scene_position(WORK_ZONE_CAFE_RETURN_POSITION)
	SceneManager.change_scene("work_zone")

func _on_recruitment_area_input_event(_viewport: Viewport, event: InputEvent, _shapeIdx: int) -> void:
	if not _is_primary_mouse_click(event):
		return
	get_viewport().set_input_as_handled()
	_try_emit_recruitment_selected()

func _unhandled_input(event: InputEvent) -> void:
	if not _is_primary_mouse_click(event):
		return
	if not _area_contains_global_point(cafeRecruitmentLogoArea, get_global_mouse_position()):
		return
	get_viewport().set_input_as_handled()
	_try_emit_recruitment_selected()

func _try_emit_recruitment_selected() -> void:
	var now := Time.get_ticks_msec()
	if _lastRecruitmentClickMsec > 0 and now - _lastRecruitmentClickMsec < 120:
		return
	_lastRecruitmentClickMsec = now
	_emit_recruitment_selected()

func _emit_recruitment_selected() -> void:
	var eventSystem := get_node_or_null("/root/EventSystem")
	if eventSystem == null:
		return
	eventSystem.call("emit_event", EventNames.CAFE_COMPANION_RECRUITMENT_SELECTED, {
		"cafe_id": "whale_cafe",
		"terminal_id": "front_reception_whale_logo",
		"title": "咖啡店陪伴招聘",
		"anchor_position": cafeRecruitmentLogoArea.global_position,
	})

func _is_primary_mouse_click(event: InputEvent) -> bool:
	if not (event is InputEventMouseButton):
		return false
	var mouseEvent := event as InputEventMouseButton
	return mouseEvent.button_index == MOUSE_BUTTON_LEFT and mouseEvent.pressed

func _area_contains_global_point(area: Area2D, globalPoint: Vector2) -> bool:
	for child in area.get_children():
		var shapeNode := child as CollisionShape2D
		if shapeNode == null or shapeNode.disabled or shapeNode.shape == null:
			continue
		if _shape_contains_point(shapeNode, globalPoint):
			return true
	return false

func _shape_contains_point(shapeNode: CollisionShape2D, globalPoint: Vector2) -> bool:
	var localPoint := shapeNode.to_local(globalPoint)
	var shape := shapeNode.shape
	if shape is RectangleShape2D:
		var rectangle := shape as RectangleShape2D
		return Rect2(rectangle.size * -0.5, rectangle.size).has_point(localPoint)
	if shape is CircleShape2D:
		var circle := shape as CircleShape2D
		return localPoint.length() <= circle.radius
	return false

func _on_cafe_companion_agent_registered(data: Dictionary) -> void:
	var companionData := _extract_companion_data(data)
	if companionData.is_empty():
		return

	var servicePointId := str(companionData.get("service_point_id", "")).strip_edges()
	var servicePointMarker := _service_point_marker(servicePointId)
	if servicePointMarker == null:
		push_warning("CafeInterior: 服务点不存在，无法摆放被雇佣玩家: %s" % servicePointId)
		return

	var personaName := str(companionData.get("persona_name", "陪伴机器人")).strip_edges()
	player.global_position = servicePointMarker.global_position
	player.velocity = Vector2.ZERO
	player.lastDirection = "down"
	player.set_movement_locked(true)
	player.call("_play_idle_animation")
	player.call("_update_world_sort_z")
	_configure_hired_player_companion_target(companionData, servicePointId, personaName)
	_configure_hired_player_nameplate(personaName)

func _on_cafe_companion_employment_resigned(_data: Dictionary) -> void:
	player.set_movement_locked(false)
	_disable_hired_player_companion_target()
	hiredPlayerNameplate.visible = false
	player.global_position = CAFE_DOOR_POSITION
	player.velocity = Vector2.ZERO
	player.lastDirection = "down"
	player.call("_play_idle_animation")
	player.call("_update_world_sort_z")

func _extract_companion_data(data: Dictionary) -> Dictionary:
	var companionVariant: Variant = data.get("companion", {})
	if companionVariant is Dictionary:
		return companionVariant
	if data.has("service_point_id"):
		return data
	return {}

func _service_point_marker(servicePointId: String) -> Marker2D:
	if servicePointId.is_empty():
		return null
	return $Markers/ServiceIdlePoints.get_node_or_null(servicePointId) as Marker2D

func _configure_hired_player_companion_target(companionData: Dictionary, servicePointId: String, personaName: String) -> void:
	hiredPlayerCompanionTarget.servicePointId = servicePointId
	hiredPlayerCompanionTarget.companionId = str(companionData.get("id", "")).strip_edges()
	if hiredPlayerCompanionTarget.companionId.is_empty():
		hiredPlayerCompanionTarget.companionId = str(companionData.get("companion_id", "")).strip_edges()
	hiredPlayerCompanionTarget.companionType = str(companionData.get("companion_type", "hired_player")).strip_edges()
	hiredPlayerCompanionTarget.personaName = personaName
	hiredPlayerCompanionTarget.ownerUserId = str(companionData.get("owner_user_id", "")).strip_edges()
	hiredPlayerCompanionTarget.employmentEndsAt = str(companionData.get("employment_ends_at", "")).strip_edges()
	hiredPlayerCompanionTarget.selfTarget = true
	hiredPlayerCompanionTarget.input_pickable = true

	var shapeNode := hiredPlayerCompanionTarget.get_node_or_null("CollisionShape2D") as CollisionShape2D
	if shapeNode != null:
		shapeNode.disabled = false

func _disable_hired_player_companion_target() -> void:
	hiredPlayerCompanionTarget.input_pickable = false
	hiredPlayerCompanionTarget.selfTarget = false
	var shapeNode := hiredPlayerCompanionTarget.get_node_or_null("CollisionShape2D") as CollisionShape2D
	if shapeNode != null:
		shapeNode.disabled = true

func _configure_hired_player_nameplate(personaName: String) -> void:
	_configure_companion_nameplate(hiredPlayerNameplate, personaName, HIRED_PLAYER_NAMEPLATE_OFFSET_Y)
	hiredPlayerNameplate.visible = true

func _configure_static_companion_nameplates() -> void:
	_configure_companion_nameplate(cafeCompanionNameplate, cafeWhaleBaristaNpc.npcName, NPC_NAMEPLATE_OFFSET_Y)
	cafeCompanionNameplate.visible = true

func _configure_companion_nameplate(label: Label, personaName: String, offsetY: float) -> void:
	var displayName := personaName.strip_edges()
	if displayName.is_empty():
		displayName = "陪伴机器人"
	var visualWidth := _companion_nameplate_visual_width(displayName)
	var renderWidth := ceili(float(visualWidth) / COMPANION_NAMEPLATE_RENDER_SCALE)
	var renderHeight := ceili(float(COMPANION_NAMEPLATE_VISUAL_HEIGHT) / COMPANION_NAMEPLATE_RENDER_SCALE)

	label.theme = WORLD_TEXT_THEME
	label.text = displayName
	label.visible = true
	label.z_index = 30
	label.scale = Vector2.ONE * COMPANION_NAMEPLATE_RENDER_SCALE
	label.position = Vector2(float(visualWidth) * -0.5, offsetY)
	label.custom_minimum_size = Vector2(renderWidth, renderHeight)
	label.size = label.custom_minimum_size
	label.horizontal_alignment = HORIZONTAL_ALIGNMENT_CENTER
	label.vertical_alignment = VERTICAL_ALIGNMENT_CENTER
	label.clip_text = true
	label.text_overrun_behavior = TextServer.OVERRUN_TRIM_ELLIPSIS
	label.mouse_filter = Control.MOUSE_FILTER_IGNORE
	label.add_theme_color_override("font_color", Color(0.12, 0.20, 0.24, 1.0))
	label.add_theme_color_override("font_shadow_color", Color(1.0, 1.0, 1.0, 0.85))
	label.add_theme_constant_override("shadow_offset_x", 0)
	label.add_theme_constant_override("shadow_offset_y", 1)
	label.add_theme_font_size_override("font_size", COMPANION_NAMEPLATE_FONT_SIZE)
	label.add_theme_stylebox_override("normal", _create_companion_nameplate_style())

func _companion_nameplate_visual_width(displayName: String) -> int:
	var estimatedWidth := displayName.length() * COMPANION_NAMEPLATE_VISUAL_CHAR_WIDTH + 28
	return clampi(estimatedWidth, COMPANION_NAMEPLATE_VISUAL_MIN_WIDTH, COMPANION_NAMEPLATE_VISUAL_MAX_WIDTH)

func _create_companion_nameplate_style() -> StyleBoxFlat:
	var style := StyleBoxFlat.new()
	style.bg_color = Color(1.0, 0.988, 0.955, 0.96)
	style.border_color = Color(0.18, 0.34, 0.38, 0.92)
	style.border_width_left = 2
	style.border_width_top = 2
	style.border_width_right = 2
	style.border_width_bottom = 2
	style.corner_radius_top_left = 12
	style.corner_radius_top_right = 12
	style.corner_radius_bottom_left = 12
	style.corner_radius_bottom_right = 12
	style.content_margin_left = 12
	style.content_margin_top = 4
	style.content_margin_right = 12
	style.content_margin_bottom = 4
	style.shadow_color = Color(0.05, 0.08, 0.09, 0.18)
	style.shadow_size = 4
	style.shadow_offset = Vector2(0, 2)
	return style