# proposal.gd
extends Control

# --- UI 节点引用 ---
@onready var title_label: Label = $proposal/Title/Title
@onready var npc_name_label: Label = $proposal/Option/NPC_Info_1/Name
@onready var npc_staff_type_label: Label = $proposal/Option/NPC_Info_1/Staff # 通常显示 "员工"
@onready var npc_job_label: Label = $proposal/Option/NPC_Info_2/Info_List_0/Job/Title
@onready var npc_level_label: Label = $proposal/Option/NPC_Info_2/Info_List_0/Job/Level
@onready var npc_icon_rect: TextureRect = $proposal/Option/NPC_Info_2/Info_List_0/Icon

@onready var stat_design_label: Label = $proposal/Option/NPC_Info_2/Info_List_1/Info_1/info
@onready var stat_code_label: Label = $proposal/Option/NPC_Info_2/Info_List_1/Info_2/info
@onready var stat_art_label: Label = $proposal/Option/NPC_Info_2/Info_List_1/Info_3/info
@onready var stat_audio_label: Label = $proposal/Option/NPC_Info_2/Info_List_1/Info_4/info

@onready var cost_label: Label = $proposal/Option/NPC_Info_2/Info_List_3/info_4/info

@onready var power_bar_segments_container: HBoxContainer = $proposal/Option/NPC_Info_2/Info_List_2
var _power_bar_segments: Array[ColorRect] = [] # 用于存储体力条的各个片段

@onready var prev_button: Button = $proposal/Title/previous/Button
@onready var next_button: Button = $proposal/Title/next/Button
@onready var confirm_button: Button = $proposal/Confirm

# --- 内部状态 ---
var _all_npcs_data: Dictionary = {}         # 存储从 GameState 加载的所有NPC原始数据
var enabled_npc_keys: Array[String] = []  # 存储所有当前可选的NPC的键 (名字)
var current_npc_index: int = -1           # 当前在 enabled_npc_keys 数组中选中的NPC的索引

# --- 常量 ---
const NPC_ICON_BASE_PATH = "res://Entity/NPC/" # NPC 图标的基础路径 (如果后续有 Icon 字段)
const DEFAULT_NPC_ICON_PATH = "res://Entity/NPC/NPC_1_UI.png" # 默认/占位NPC图标

const POWER_CURRENT_COLOR = Color.GREEN_YELLOW                # 当前体力颜色
const POWER_MAX_POTENTIAL_COLOR = Color(0.2, 0.4, 0.2, 0.8) # 最大潜力槽颜色 (稍暗的绿色)
const POWER_DISABLED_COLOR = Color(0.1, 0.1, 0.1, 0.3)      # 体力条禁用/未达到部分的颜色


func _ready() -> void:
	var node_name = str(self.name)
	add_to_group(node_name) # 方便父节点或其他系统查找

	# 收集体力条的片段
	for child in power_bar_segments_container.get_children():
		if child is ColorRect:
			_power_bar_segments.append(child)
	if _power_bar_segments.size() != 20:
		printerr(node_name + ": Expected 20 power bar segments, found " + str(_power_bar_segments.size()))


	# 连接信号
	if prev_button and not prev_button.pressed.is_connected(_on_previous_pressed):
		prev_button.pressed.connect(_on_previous_pressed)
	if next_button and not next_button.pressed.is_connected(_on_next_pressed):
		next_button.pressed.connect(_on_next_pressed)
	if confirm_button and not confirm_button.pressed.is_connected(_on_confirm_pressed):
		confirm_button.pressed.connect(_on_confirm_pressed)

	if not is_connected("visibility_changed",Callable(self,"_on_visibility_changed")):
		visibility_changed.connect(Callable(self,"_on_visibility_changed"))

	# 如果节点在 _ready 时就可见，则立即刷新显示
	if is_visible_in_tree():
		reset_display()


func _on_visibility_changed() -> void:
	if is_visible_in_tree():
		reset_display()


# 重置显示状态，在窗口可见时调用
func reset_display() -> void:
	print(str(self.name) + ": Resetting display state.")
	_load_and_filter_npcs()

	if enabled_npc_keys.is_empty():
		current_npc_index = -1
		print(str(self.name) + ": No enabled NPCs found.")
	else:
		current_npc_index = 0 # 默认显示第一个可用的NPC
		print(str(self.name) + ": Found %d enabled NPCs. Defaulting to index 0." % enabled_npc_keys.size())
	
	_display_current_npc()


# 从 GameState 加载NPC数据并筛选出可用的负责人
func _load_and_filter_npcs() -> void:
	_all_npcs_data.clear()
	enabled_npc_keys.clear()

	if not GameState:
		printerr(str(self.name) + ": GameState not available in _load_and_filter_npcs.")
		return

	var raw_npcs_data = GameState.get_value("npcs", {})
	if raw_npcs_data.is_empty():
		print(str(self.name) + ": 'npcs' data in GameState is empty or not found.")
		return

	_all_npcs_data = raw_npcs_data

	for npc_key in _all_npcs_data:
		var npc_info = _all_npcs_data[npc_key]
		if typeof(npc_info) == TYPE_DICTIONARY and npc_info.get("type") == "员工":
			enabled_npc_keys.append(npc_key)
	
	# 可选：对 enabled_npc_keys进行排序，以确保显示顺序一致
	# enabled_npc_keys.sort()
	print(str(self.name) + ": Loaded and filtered NPCs. Enabled count: " + str(enabled_npc_keys.size()))

# 根据 current_npc_index 更新UI显示
func _display_current_npc() -> void:
	if current_npc_index < 0 or current_npc_index >= enabled_npc_keys.size():
		# --- 处理没有可用NPC或索引无效的情况 ---
		title_label.text = "策划案负责人"
		npc_name_label.text = "无可用负责人"
		npc_staff_type_label.text = "-" # 通常显示 "员工"
		npc_job_label.text = "-"
		npc_level_label.text = "-"
		npc_icon_rect.texture = null # 或者一个“无”的占位图
		stat_design_label.text = "-"
		stat_code_label.text = "-"
		stat_art_label.text = "-"
		stat_audio_label.text = "-"
		cost_label.text = "-"
		
		# 隐藏所有体力条片段
		for segment in _power_bar_segments:
			segment.visible = false
		
		if prev_button: prev_button.disabled = true
		if next_button: next_button.disabled = true
		if confirm_button: confirm_button.disabled = true
		return

	# --- 如果有有效NPC ---
	if prev_button: prev_button.disabled = enabled_npc_keys.size() <= 1
	if next_button: next_button.disabled = enabled_npc_keys.size() <= 1
	if confirm_button: confirm_button.disabled = false

	var display_index = current_npc_index + 1
	var total_count = enabled_npc_keys.size()
	title_label.text = "策划案负责人 %d/%d" % [display_index, total_count]

	var npc_key = enabled_npc_keys[current_npc_index]
	if not _all_npcs_data.has(npc_key):
		printerr(str(self.name) + ": Current NPC key '%s' not found in cached _all_npcs_data!" % npc_key)
		# 显示错误状态，可以做得更友好
		npc_name_label.text = "错误:数据丢失"
		# 隐藏所有体力条片段
		for segment in _power_bar_segments:
			segment.visible = false
		return
		
	var npc_info = _all_npcs_data[npc_key]

	# 更新基本信息
	npc_name_label.text = npc_key
	npc_staff_type_label.text = npc_info.get("type", "员工") # 根据筛选，这里应该是"员工"
	npc_job_label.text = npc_info.get("title", "-")
	npc_level_label.text = "Lv" + str(int(npc_info.get("level", 1)))

	# 更新图标 (后续会从npc_info.Icon获取)
	var icon_name_from_data = npc_info.get("Icon", "") # 假设后续会有这个字段
	if not icon_name_from_data.is_empty():
		var dynamic_icon_path = NPC_ICON_BASE_PATH + icon_name_from_data + ".png" # 假设文件名规则
		if ResourceLoader.exists(dynamic_icon_path):
			npc_icon_rect.texture = ResourceLoader.load(dynamic_icon_path)
		else:
			printerr(str(self.name) + ": Failed to load NPC icon: " + dynamic_icon_path + ". Falling back to default.")
			npc_icon_rect.texture = ResourceLoader.load(DEFAULT_NPC_ICON_PATH)
	else:
		# print(str(self.name) + ": NPC icon name is empty for key '%s'. Using default." % npc_key)
		npc_icon_rect.texture = ResourceLoader.load(DEFAULT_NPC_ICON_PATH)


	# 更新能力值 (确保转换为整数显示)
	stat_design_label.text = str(int(npc_info.get("design", 0.0)))
	stat_code_label.text = str(int(npc_info.get("code", 0.0)))
	stat_art_label.text = str(int(npc_info.get("art", 0.0)))
	stat_audio_label.text = str(int(npc_info.get("audio", 0.0)))

	# 更新费用
	cost_label.text = str(int(npc_info.get("outsourcing", 0.0)))

	# --- 更新体力条 (包含 visible 控制) ---
	var power = float(npc_info.get("power", 0.0))
	var power_max = float(npc_info.get("power_max", 0.0))
	
	if power_max <= 0: # 防止除零错误或无效数据
		for segment in _power_bar_segments:
			segment.visible = false # 如果最大体力为0或无效，所有格段都不可见
	else:
		var total_visible_segments = floori(power_max / 10.0) # 根据 power_max 计算总共应显示的格数
		var current_power_segments = floori(power / 10.0)     # 当前体力对应的格数

		# 确保 current_power_segments 不会超过 total_visible_segments (逻辑上 power 不应大于 power_max)
		current_power_segments = mini(current_power_segments, total_visible_segments)

		for i in range(_power_bar_segments.size()): # 遍历所有20个可能的格段
			var segment = _power_bar_segments[i]
			
			if i < total_visible_segments:
				segment.visible = true # 此格段在NPC的最大体力范围内，设为可见
				if i < current_power_segments:
					segment.color = POWER_CURRENT_COLOR         # 当前体力部分
				else:
					segment.color = POWER_MAX_POTENTIAL_COLOR # 最大潜力中未充满的部分
			else:
				segment.visible = false # 此格段超出NPC的最大体力范围，设为不可见

func _on_previous_pressed() -> void:
	if enabled_npc_keys.size() > 1:
		current_npc_index -= 1
		if current_npc_index < 0:
			current_npc_index = enabled_npc_keys.size() - 1
		_display_current_npc()

func _on_next_pressed() -> void:
	if enabled_npc_keys.size() > 1:
		current_npc_index += 1
		if current_npc_index >= enabled_npc_keys.size():
			current_npc_index = 0
		_display_current_npc()

func _on_confirm_pressed() -> void:
	if current_npc_index != -1 and current_npc_index < enabled_npc_keys.size():
		var selected_npc_key = enabled_npc_keys[current_npc_index]
		var parent_node = get_parent()

		if parent_node and parent_node.has_method("update_task_options"):
			parent_node.update_task_options({"关键环节负责人": selected_npc_key})
			print(str(self.name) + ": Confirmed NPC '%s'. Sent to parent." % selected_npc_key)
		else:
			printerr(str(self.name) + ": Parent node not found or missing 'update_task_options' method.")

		# 无论父节点是否成功更新，都尝试继续后续流程
		if parent_node and parent_node.has_method("start_task"):
			parent_node.start_task()
		else:
			printerr(str(self.name) + ": Parent node not found or missing 'start_task' method.")
			
		if parent_node and parent_node.has_method("close_all_popups"):
			parent_node.close_all_popups()
		else:
			printerr(str(self.name) + ": Parent node not found or missing 'close_all_popups' method.")
			self.hide() # Fallback hide
	else:
		print(str(self.name) + ": No valid NPC selected to confirm.")
		# 即使没有有效选择，也尝试关闭（或提示用户）
		var parent_node = get_parent()
		if parent_node and parent_node.has_method("close_all_popups"):
			parent_node.close_all_popups() # 或者只关闭自己并返回主界面
		else:
			self.hide()