## VERTICAL SLICE - NOT FOR PRODUCTION
## 提升三选一覆盖层（模态）：通关停点的三卡点选→确认→兑付反馈两态呈现。
## 文案拼装归 Narrator 经组合根喂入——本类零文案装配。
class_name CurioPickOverlay
extends Control

signal pick_confirmed(item_id: String)
signal continue_pressed
signal refresh_requested   # 三选一刷新意图（迭代 11 第①批 T5b——P1 甲 X/Y 双源；重抽归组合根）

var _label: Label
var _choice_box: HBoxContainer              # 三卡区（pick 态——M7 bcard 竖卡）
var _confirm_btn: Button                    # 确认钮（点选后点亮——两段式第二拍）
var _continue_btn: Button                   # 继续钮（兑付反馈态唯一出口）
var _refresh_btn: Button                    # 刷新钮（迭代 11 第①批 T5b——余量>0 才显示；M7 升顶条图标钮）
var _refresh_badge: Label                   # M7 余量角标（图标钮右上——demo ⑥ 同构）
var _refresh_l: Label                       # 刷新余量读数（X 优先 + Y 冒险池）
var _foot_hint: Label                       # T7 底注（demo .bonus-foot .hint——pick 态显隐）
var _refresh_allowance := 0                 # 组合根投喂免费余量（X/Y——本视图零核心引用）
var _refresh_gp_cost := 0                   # 组合根投喂 GP 刷新价（免费位用尽后的付费档读数）
var _selected := ""                         # 点选暂存（确认前可改选）
var _header := ""                           # 停点头部文案（选择态保持显示）
var _card_meta: Array[Variant] = []                  # open_pick 缓存 [{id, text}]——高亮还原读面
var _bcards: Array[Variant] = []                     # M7 bcard 引用列（select 高亮=set_selected）


func _init() -> void:
	# 全屏页形态（demo ⑥ #v-bonus——与商店 T6 同壳 page_shell，
	# 根底暗档）——56px 通栏顶条（标题+刷新图标钮/角标）+ 居中入账信息行（GP 汇总行承载）+
	# bcard 三竖卡（D1 232×352）+ 底部确认主钮与免费选择注记。差异白名单=免费选择/✓章/无价签。
	# 状态机不变：pick→result。M7 同构裁决遗产保留。
	var page: Dictionary[Variant, Variant] = UiKit.page_shell(self, false)
	var top: HBoxContainer = page.top_row
	top.add_child(UiKit.label("战利品三选一",UiKit.FS_TITLE, true, UiKit.WARM))
	var top_sp := Control.new()
	top_sp.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	top.add_child(top_sp)
	_refresh_btn = UiKit.button("", 0.0)   # 图标钮自设 44×44——豁免宽度基准
	_refresh_btn.icon = UiKit.load_tex(UiKit.TEX_ICON_REFRESH)
	_refresh_btn.custom_minimum_size = Vector2(44, 44)
	_refresh_btn.tooltip_text = "刷新候选——装配刷新件 X 优先，Y 为冒险池；不消耗 AP"
	_refresh_btn.pressed.connect(_emit_refresh_requested)
	_refresh_btn.visible = false
	top.add_child(_refresh_btn)
	_refresh_badge = UiKit.label("0",UiKit.FS_CAPTION, true, UiKit.INK_ON_GOLD)
	_refresh_badge.mouse_filter = Control.MOUSE_FILTER_IGNORE
	_refresh_badge.set_anchors_preset(Control.PRESET_TOP_RIGHT)
	_refresh_badge.offset_left = -22.0
	_refresh_badge.offset_top = -6.0
	_refresh_btn.add_child(_refresh_badge)
	_refresh_l = UiKit.label("",UiKit.FS_CAPTION, false, UiKit.WARM_SOFT)
	_refresh_l.visible = false
	top.add_child(_refresh_l)
	var box: VBoxContainer = page.box
	_label = UiKit.label("",UiKit.FS_BODY, false, UiKit.WARM_SOFT)
	_label.horizontal_alignment = HORIZONTAL_ALIGNMENT_CENTER
	box.add_child(_label)
	_choice_box = HBoxContainer.new()
	_choice_box.add_theme_constant_override("separation", 26)   # demo .cards gap 26（T7 对齐）
	_choice_box.alignment = BoxContainer.ALIGNMENT_CENTER
	_choice_box.size_flags_vertical = Control.SIZE_EXPAND_FILL
	box.add_child(_choice_box)
	var foot := HBoxContainer.new()
	foot.alignment = BoxContainer.ALIGNMENT_CENTER
	foot.add_theme_constant_override("separation", 16)
	box.add_child(foot)
	_confirm_btn = UiKit.primary_button("确认选择")
	_confirm_btn.pressed.connect(_on_confirm_pressed)
	_confirm_btn.visible = false
	foot.add_child(_confirm_btn)
	_continue_btn = UiKit.button("继续")
	_continue_btn.pressed.connect(_emit_continue_pressed)
	_continue_btn.visible = false
	foot.add_child(_continue_btn)
	_foot_hint = UiKit.label("免费选择 · 刷新不消耗 AP",UiKit.FS_HINT, false, UiKit.WARM_FAINT)
	foot.add_child(_foot_hint)
	visible = false


# 选择态：header = 停点头部（回血+钥石增量行，Narrator 装配）；cards = [{id, text}]
#（组合根组装——视图纯呈现）。确认前可改选；确认经 pick_confirmed 外发。
func open_pick(header: String, cards: Array) -> void:
	_header = header
	_label.text = header
	_selected = ""
	_card_meta = (cards as Array).duplicate(true)
	for c in _choice_box.get_children():
		c.queue_free()
	_bcards.clear()
	for ch in cards:
		var cid := String(ch.get("id", ""))
		var full := String(ch.get("text", ""))
		var lines := full.split("\n")
		var title := lines[0]
		var desc := "\n".join(lines.slice(1)) if lines.size() > 1 else ""
		var idl := cid.to_lower()
		var band := UiKit.tg_band(idl)   # 类型色带单点（TG_* 五族同源判定；aoe/blast 归 TG_AOE）
		# 类型脚注（T7 判官 checkpoint：demo .bcard .src 底部类型行——实机缺=卡下半空底；词=demo 同款）
		var card := UiKit.bcard(title, desc, band, _icon_for_id(idl), "", _type_label(idl))
		card.gui_input.connect(func(ev: InputEvent) -> void:
			if ev is InputEventMouseButton and ev.pressed and ev.button_index == MOUSE_BUTTON_LEFT:
				_select_card(cid))
		card.mouse_filter = Control.MOUSE_FILTER_STOP
		_choice_box.add_child(card)
		_bcards.append(card)
	_choice_box.visible = true
	_confirm_btn.visible = false
	_continue_btn.visible = false
	_foot_hint.visible = true   # T7 底注=pick 态专属（result 态让位）
	_refresh_btn.visible = false   # 刷新面随 set_refresh_display 投喂后现形（open 先归零防残留；店内专长凭证面不投喂=无刷新）
	_refresh_l.text = ""
	visible = true


# 三选一刷新呈现投喂（对齐商店 MC-1 同构——free_left=X/Y 免费位余量〔基础 0〕，
# 免费位用尽转 GP 付费档：gp_cost=本次 GP 刷新价、can_afford=冒险钱包可付；钮常驻选择态，两源皆穷=禁用不隐藏）
func set_refresh_display(free_left: int, gp_cost: int, can_afford: bool) -> void:
	_refresh_allowance = maxi(0, int(free_left))
	_refresh_gp_cost = maxi(0, int(gp_cost))
	_refresh_btn.visible = _refresh_allowance > 0 or _refresh_gp_cost > 0
	_refresh_badge.text = str(_refresh_allowance)
	_refresh_l.text = "免费 · 不消耗 AP" if _refresh_allowance > 0 else ("刷新 %d GP" % _refresh_gp_cost if _refresh_gp_cost > 0 else "")
	_refresh_l.visible = _refresh_l.text != ""
	_refresh_btn.tooltip_text = "刷新候选——换一批战利品\n免费 %d 次（刷新件 X 优先 + 冒险池 Y）\nGP 刷新 %d GP\n池源=共享池，与商店货架同源" % [_refresh_allowance, _refresh_gp_cost]
	_refresh_btn.disabled = _refresh_allowance <= 0 and not can_afford


func _emit_refresh_requested() -> void:
	refresh_requested.emit()


func _select_card(id: String) -> void:
	_selected = id
	# 选中态=木描边+✓章（demo ⑥；set_selected 逐卡置真值防改选残留）
	for i in _bcards.size():
		var meta: Dictionary[Variant, Variant] = _card_meta[i] if i < _card_meta.size() else {}
		(_bcards[i] as UiKit.BCard).set_selected(String(meta.get("id", "")) == id)
	_confirm_btn.visible = true


func _on_confirm_pressed() -> void:
	if _selected != "":
		pick_confirmed.emit(_selected)


# 探针/测试复用：以真实按钮路径触发点选、确认与继续（树序遮挡纪律——断言走真实信号路径）
func press_card(index: int) -> void:
	# M7：卡载体 Button→bcard（gui_input 点选）——真实路径=同一 _select_card 处理器，探针语义不变
	if index >= 0 and index < _card_meta.size():
		_select_card(String(_card_meta[index].get("id", "")))


func press_confirm() -> void:
	_confirm_btn.pressed.emit()


func press_continue() -> void:
	_continue_btn.pressed.emit()


# 探针/测试复用：以真实按钮路径触发刷新意图（信号外发——受理归组合根）
func press_refresh() -> void:
	_refresh_btn.pressed.emit()


# 兑付反馈态（curio_resolved 到达——结果行追加在头部之后；唯一出口 = 继续）
func show_result(text: String) -> void:
	_label.text = _header + "\n" + text
	_choice_box.visible = false
	_confirm_btn.visible = false
	_continue_btn.visible = true
	_refresh_btn.visible = false   # 刷新=选择态专属功能（结果态停点已兑付——残钮零意图可点）
	_foot_hint.visible = false
	visible = true


# 收屏（组合根在 continue_pressed 处理毕调——推进下一关同拍）
func close_pick() -> void:
	_choice_box.visible = false
	_continue_btn.visible = false
	_confirm_btn.visible = false
	_refresh_btn.visible = false
	_foot_hint.visible = false
	visible = false


func _emit_continue_pressed() -> void:
	continue_pressed.emit()


# M7：id → 手绘图标键（子串映射容错 id 词表演进；缺位=BCard 空图标槽不炸）
func _icon_for_id(idl: String) -> String:
	if idl.contains("heal"):
		return UiKit.TEX_ICON_MEDKIT
	if idl.contains("blast") or idl.contains("magic"):
		return UiKit.TEX_ICON_BLAST
	if idl.contains("gp") or idl.contains("coin"):
		return UiKit.TEX_ICON_COINBAG
	if idl.contains("attack"):
		return UiKit.TEX_ICON_SWORD
	if idl.contains("armor"):
		return UiKit.TEX_ICON_SHIELD
	if idl.contains("ap") or idl.contains("action"):
		return UiKit.TEX_ICON_POUCH
	return UiKit.TEX_ICON_COINBAG


# T7 类型脚注词（demo .bcard .src 同款五族——与 tg_band 同域子串判定，卡底填空对齐）
func _type_label(idl: String) -> String:
	if idl.contains("heal"):
		return "治疗"
	if idl.contains("blast") or idl.contains("magic"):
		return "魔法"
	if idl.contains("pierce"):
		return "穿甲"
	if idl.contains("aoe"):
		return "群伤"
	return "通用增益"