# VERTICAL SLICE - NOT FOR PRODUCTION
# 实现 GDD：design/ux/battle.md（D 区 AP 条 44px——点阵+数字〔pattern 5 点阵资源显示〕、
# 停手按钮居左、图例+弃图刷新按钮居右〔雷图右上角〕；弃图刷新确认微交互与常规确认不同位
# 〔pattern 7 破坏性确认异位：RAP 扣费 · 旧板旗作废显式代价〕）。
# Date: 2026-09-12
# 高内聚边界：纯视图——意图经信号外发（stop_pressed/refresh_confirmed/legend_toggled），
# 状态由组合根经 setter 注入；刷新可用性预判 = RAP≥8 读数（行动经济 无推送信号——每次调用返回后重查）。
class_name ApBarView
extends PanelContainer

signal stop_pressed
signal refresh_confirmed
signal legend_toggled

const COL_GOLD := UiKit.GOLD
const COL_DOT_OFF := UiKit.DOT_OFF
const COL_INK := UiKit.INK

var _dots: HBoxContainer
var _ap_label: Label
var _btn_stop: Button
var _btn_legend: Button
var _btn_refresh: Button
var _refresh_sub: Label
var _confirm_row: HBoxContainer
var _confirm_lab: Label
var refresh_cost: int = 0   # 表值驱动（装配经 set_refresh_cost 注入 ActionEconomyTable.rap_refresh_cost）
var _confirm_armed := false
var _arm_tween: Tween


func _init() -> void:
	custom_minimum_size = Vector2(0, 44)
	var sb := UiKit.panel_flat(UiKit.PANEL_DATA, UiKit.PANEL_BORDER, 0, 1, Vector4(8, 4, 8, 4))
	add_theme_stylebox_override("panel", sb)

	var row := HBoxContainer.new()
	row.add_theme_constant_override("separation", 8)
	add_child(row)

	_dots = HBoxContainer.new()
	_dots.add_theme_constant_override("separation", 3)
	_dots.size_flags_vertical = Control.SIZE_SHRINK_CENTER
	row.add_child(_dots)
	_ap_label = UiKit.label("AP 0/0", 16, true)
	_ap_label.size_flags_vertical = Control.SIZE_SHRINK_CENTER
	row.add_child(_ap_label)

	_btn_stop = UiKit.button("停手")
	_btn_stop.custom_minimum_size = Vector2(64, 0)
	_btn_stop.size_flags_vertical = Control.SIZE_SHRINK_CENTER
	_btn_stop.pressed.connect(func(): stop_pressed.emit())
	row.add_child(_btn_stop)

	var spacer := Control.new()
	spacer.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	row.add_child(spacer)

	# 破坏性确认异位（pattern 7）：确认 chips 出现在刷新按钮左方——与常规"按钮自身确认"不同位
	_confirm_row = HBoxContainer.new()
	_confirm_row.add_theme_constant_override("separation", 4)
	_confirm_row.visible = false
	row.add_child(_confirm_row)
	_confirm_lab = UiKit.label("RAP−%d · 旧板旗作废" % refresh_cost, 14, true)
	_confirm_lab.add_theme_color_override("font_color", COL_INK)
	_confirm_row.add_child(_confirm_lab)
	var confirm_btn := UiKit.button("确认弃图")
	confirm_btn.pressed.connect(_disarm_and_fire)
	_confirm_row.add_child(confirm_btn)

	_btn_legend = UiKit.button("图例")
	_btn_legend.custom_minimum_size = Vector2(56, 0)
	_btn_legend.size_flags_vertical = Control.SIZE_SHRINK_CENTER
	_btn_legend.pressed.connect(func(): legend_toggled.emit())
	row.add_child(_btn_legend)

	var refresh_box := VBoxContainer.new()
	refresh_box.add_theme_constant_override("separation", 0)
	refresh_box.size_flags_vertical = Control.SIZE_SHRINK_CENTER
	row.add_child(refresh_box)
	_btn_refresh = UiKit.button("弃图刷新")
	_btn_refresh.pressed.connect(_on_refresh_pressed)
	refresh_box.add_child(_btn_refresh)
	_refresh_sub = UiKit.label("RAP−%d · 剩 0 次" % refresh_cost, 14, false)
	_refresh_sub.horizontal_alignment = HORIZONTAL_ALIGNMENT_CENTER
	refresh_box.add_child(_refresh_sub)


# ---- setter 面（组合根每次核心调用返回后重查注入——行动经济 无推送信号） ----

func set_ap(ap: int, ap_max: int) -> void:
	while _dots.get_child_count() < ap_max:
		_dots.add_child(_make_dot())
	while _dots.get_child_count() > ap_max:
		var last: Control = _dots.get_child(_dots.get_child_count() - 1)
		_dots.remove_child(last)
		last.queue_free()
	for i in _dots.get_child_count():
		var d: ColorRect = _dots.get_child(i)
		d.color = COL_GOLD if i < ap else COL_DOT_OFF
	_ap_label.text = "AP %d/%d" % [ap, ap_max]


func set_refresh_cost(cost: int) -> void:
	refresh_cost = cost
	_confirm_lab.text = "RAP−%d · 旧板旗作废" % cost


func set_refresh_state(remaining: int, ready: bool) -> void:
	_refresh_sub.text = "RAP−%d · 剩 %d 次" % [refresh_cost, remaining]
	_btn_refresh.disabled = not ready
	if not ready:
		_disarm()


func set_stop_enabled(on: bool) -> void:
	_btn_stop.disabled = not on


func set_legend_enabled(on: bool) -> void:
	_btn_legend.disabled = not on


# 探针/装配复用：刷新按钮可用性（预判 = RAP 足额 + 上限未到）
func is_refresh_ready() -> bool:
	return not _btn_refresh.disabled


# 探针接缝（ADR-0004"合成输入走真实翻译出口"口径）：刷新按钮点击 → 确认 chips 全链路
func press_refresh_for_probe() -> void:
	_on_refresh_pressed()


func confirm_visible() -> bool:
	return _confirm_row.visible


func press_confirm_for_probe() -> void:
	if _confirm_armed:
		_disarm_and_fire()


func refresh_remaining_text() -> String:
	return _refresh_sub.text


# ---- 确认微交互（pattern 7 异位：常规确认 = 按钮自身；本确认 = 左侧独立 chips） ----

func _on_refresh_pressed() -> void:
	if _btn_refresh.disabled:
		return
	_confirm_row.visible = true
	_confirm_armed = true
	if _arm_tween != null and _arm_tween.is_valid():
		_arm_tween.kill()
	_arm_tween = create_tween()
	_arm_tween.tween_interval(4.0)
	_arm_tween.tween_callback(_disarm)


func _disarm_and_fire() -> void:
	_disarm()
	refresh_confirmed.emit()


func _disarm() -> void:
	_confirm_armed = false
	_confirm_row.visible = false


# 资源面拒绝反馈（pattern 1 resource_face 腿）：AP 数字脉冲
func pulse_ap() -> void:
	var tw := create_tween()
	tw.tween_property(_ap_label, "modulate", Color(1.0, 0.4, 0.3), UiKit.motion(0.1))
	tw.tween_property(_ap_label, "modulate", Color(1, 1, 1), UiKit.motion(0.25))


func _make_dot() -> ColorRect:
	var d := ColorRect.new()
	d.custom_minimum_size = Vector2(10, 10)
	d.color = COL_DOT_OFF
	d.mouse_filter = Control.MOUSE_FILTER_IGNORE
	return d