# client_phase_integration_system.gd —— 40250 客户端全状态机与全流程一体化集成系统 1:1
# 严格对照：
#   Client/Eternexus/root/networkmodule.py, interfacemodule.py, game.py
#   ClientVS22/source/UserInterface/PythonNetworkStream.h (PHASE_*)
extends RefCounted

const IntroLoginPhase = preload("res://intro_login_phase.gd")
const IntroEmpirePhase = preload("res://intro_empire_phase.gd")
const IntroSelectPhase = preload("res://intro_select_phase.gd")
const IntroCreatePhase = preload("res://intro_create_phase.gd")
const IntroLoadingPhase = preload("res://intro_loading_phase.gd")

const MessengerSystem = preload("res://messenger_system.gd")
const WhisperChatSystem = preload("res://whisper_chat_system.gd")
const AtlasNavigationSystem = preload("res://atlas_navigation_system.gd")
const EquipmentInspectSystem = preload("res://equipment_inspect_system.gd")
const BgmJukeboxSystem = preload("res://bgm_jukebox_system.gd")

# 官方 Phase 枚举 (PythonNetworkStream.h)
enum ClientPhase {
	PHASE_OFFLINE,
	PHASE_LOGIN,
	PHASE_EMPIRE,
	PHASE_SELECT,
	PHASE_CREATE,
	PHASE_LOADING,
	PHASE_GAME
}

var current_phase: int = ClientPhase.PHASE_LOGIN

# 阶段子模块实例
var login_phase: RefCounted = null
var empire_phase: RefCounted = null
var select_phase: RefCounted = null
var create_phase: RefCounted = null
var loading_phase: RefCounted = null

# 游戏内核心交互模块实例
var messenger: RefCounted = null
var whisper: RefCounted = null
var atlas: RefCounted = null
var equip_inspect: RefCounted = null
var jukebox: RefCounted = null

# 活跃角色数据
var active_character: Dictionary = {}
var active_account: String = ""

# 热键弹窗焦点栈 (用于 Escape 键自顶向下关闭)
var dialog_focus_stack: Array = []

func _init() -> void:
	current_phase = ClientPhase.PHASE_LOGIN
	active_character = {}
	active_account = ""
	dialog_focus_stack.clear()

	# 初始化各阶段系统
	login_phase = IntroLoginPhase.new()
	empire_phase = IntroEmpirePhase.new()
	select_phase = IntroSelectPhase.new()
	create_phase = IntroCreatePhase.new()
	loading_phase = IntroLoadingPhase.new()

	# 初始化游戏内交互系统
	messenger = MessengerSystem.new()
	whisper = WhisperChatSystem.new()
	atlas = AtlasNavigationSystem.new()
	equip_inspect = EquipmentInspectSystem.new()
	jukebox = BgmJukeboxSystem.new()

# 1. 登录跳转流 (Login -> Select / Empire)
func process_login(account: String, password_input: String) -> Dictionary:
	var r = login_phase.attempt_login(account, password_input)
	if not r["success"]:
		return r

	active_account = account
	if r.get("has_characters", false):
		current_phase = ClientPhase.PHASE_SELECT
		r["next_phase"] = ClientPhase.PHASE_SELECT
	else:
		current_phase = ClientPhase.PHASE_EMPIRE
		r["next_phase"] = ClientPhase.PHASE_EMPIRE

	return r

# 2. 阵营抉择流 (Empire -> Create)
func process_empire_select(empire_id: int) -> Dictionary:
	if current_phase != ClientPhase.PHASE_EMPIRE:
		return { "success": false, "error": "NOT_IN_EMPIRE_PHASE" }

	empire_phase.select_empire(empire_id)
	var conf = empire_phase.confirm_empire_selection()
	current_phase = ClientPhase.PHASE_CREATE
	conf["next_phase"] = ClientPhase.PHASE_CREATE
	return conf

# 3. 角色塑形流 (Create -> Select)
func process_character_create(name: String, empire_id: int = 1) -> Dictionary:
	if current_phase != ClientPhase.PHASE_CREATE:
		return { "success": false, "error": "NOT_IN_CREATE_PHASE" }

	var r = create_phase.create_character(name, empire_id)
	if not r["success"]:
		return r

	# 存入角色选择大厅首个空槽位
	select_phase.set_character_slot(0, r["character"])
	current_phase = ClientPhase.PHASE_SELECT
	r["next_phase"] = ClientPhase.PHASE_SELECT
	return r

# 4. 选择角色出战流 (Select -> Loading -> Game)
func process_character_start(slot_idx: int) -> Dictionary:
	if current_phase != ClientPhase.PHASE_SELECT:
		return { "success": false, "error": "NOT_IN_SELECT_PHASE" }

	select_phase.select_slot(slot_idx)
	var r = select_phase.start_game()
	if not r["success"]:
		return r

	active_character = r["character"]

	# 启动过场加载
	loading_phase.start_loading()
	current_phase = ClientPhase.PHASE_LOADING

	# 完成 4 阶段加载
	for i in range(5):
		loading_phase.advance_loading_step()

	if loading_phase.is_completed():
		current_phase = ClientPhase.PHASE_GAME
		jukebox.on_enter_map("metin2_map_a1")
		messenger.main_player_name = active_character.get("name", "Hero")
		whisper.main_player_name = active_character.get("name", "Hero")
		r["next_phase"] = ClientPhase.PHASE_GAME

	return r

# 5. 全局热键路由与窗口调度 (1:1 interfacemodule.py)
func handle_input_hotkey(key_name: String) -> Dictionary:
	if current_phase != ClientPhase.PHASE_GAME:
		return { "handled": false, "phase": current_phase }

	match key_name:
		"Alt+M": # 好友面板
			var is_showing: bool = (dialog_focus_stack.has("MESSENGER"))
			if is_showing:
				dialog_focus_stack.erase("MESSENGER")
				return { "handled": true, "action": "CLOSE_MESSENGER" }
			else:
				dialog_focus_stack.append("MESSENGER")
				return { "handled": true, "action": "OPEN_MESSENGER" }

		"M": # Atlas 全景大地图
			var visible = atlas.toggle_atlas()
			if visible:
				dialog_focus_stack.append("ATLAS")
				return { "handled": true, "action": "OPEN_ATLAS" }
			else:
				dialog_focus_stack.erase("ATLAS")
				return { "handled": true, "action": "CLOSE_ATLAS" }

		"Escape": # 自顶向下关闭弹窗或呼出系统菜单
			if not dialog_focus_stack.is_empty():
				var top_dialog = dialog_focus_stack.pop_back()
				if top_dialog == "ATLAS":
					atlas.hide_atlas()
				return { "handled": true, "action": "CLOSED_TOP_DIALOG", "dialog": top_dialog }
			else:
				return { "handled": true, "action": "OPEN_SYSTEM_MENU" }

	return { "handled": false }

# 6. 登出游戏 (Game -> Select / Login)
func logout_to_select() -> void:
	current_phase = ClientPhase.PHASE_SELECT
	active_character = {}
	dialog_focus_stack.clear()
	atlas.hide_atlas()
	jukebox.on_enter_map("intro_select")

func logout_to_login() -> void:
	current_phase = ClientPhase.PHASE_LOGIN
	active_character = {}
	active_account = ""
	dialog_focus_stack.clear()
	jukebox.on_enter_map("intro_login")