# VERTICAL SLICE - NOT FOR PRODUCTION
# 轮间结算节奏化断言（逻辑先行断言面）：
# ① 演出队列排空前后核心逻辑状态逐位一致（演出关停不产生分叉——排播队列零核心触碰的结构证明）；
# ② 零丢行：step_row 信号总数 = 明细带实收行数（排播/排空两路都不吞行）；
# ③ 段间延迟取数面双态（常态 >0 / 减动效 =0 归零不跳过——pace_delay_for 直读）。
# 载体：main.tscn 实例（同 ui_click_probe 形态——组合根全链在座），真实冒险驱动至首战结算后断言。
# 运行：godot --headless --path game --script res://tests/unit/presentation/pacing_queue_test.gd（expect 0）
extends SceneTree

var _problems: Array = []


func check(cond: bool, msg: String) -> void:
	if not cond:
		_problems.append(msg)


func _init() -> void:
	var main: Node = load("res://presentation/main.tscn").instantiate()
	root.add_child(main)
	await process_frame
	# 隔离换注（迭代 27 T1——SaveManager 升格 autoload 后改原地 attach：先删后建防陈旧档泄入，
	# 读盘在 attach 内完成；meta 经 save 引用透传零重建）
	for p in ["user://test_pacing_queue_save.json", "user://test_pacing_queue_save.json.tmp"]:
		if FileAccess.file_exists(p):
			DirAccess.remove_absolute(p)
	var sm = main.get_node("/root/SaveManager")
	sm.attach_path("user://test_pacing_queue_save.json")
	sm.mark_first_adventure_done()
	main._refresh_resume_button()
	# 行信号计数器（真实信号路径旁挂计数——零触碰既有接线）
	var rows_seen: Array = []
	main._start_adventure_from_menu()
	await process_frame
	# 入口停点选路进首战（真实停点链）
	if not main.level_screen.visible:
		_problems.append("入口停点未呈现（前置失守）")
		_finish()
		return
	main.run_scope.runner.pick_next_node(int(main.run_scope.runner.next_candidate_ids()[0]))
	await process_frame
	# 等首战开打（board_changed 同步链——两帧余量）
	await process_frame
	var battle = main.run_scope.runner.current_battle()
	if battle == null:
		_problems.append("首战未开打（排播断言无载体）")
		_finish()
		return
	battle.step_row.connect(_count_row.bind(rows_seen))
	# 理性策略挖到触发结算（≥1 行入队即达断言前提——AP 一次消耗；挖格须邻英雄——邻接优先排序）
	var ms = battle.minesweeper
	# 理性策略驱动（auto_player 单一实现复用——damage_probe 同款两步消费：先 move 到 hero_cell 再 dig）
	var ap = load("res://smoke/auto_player.gd")
	var acted := false
	for guard in range(40):
		var plan: Dictionary = ap.choose_dig(ms)
		if plan.is_empty():
			break
		if plan.hero_cell != ms.hero_pos():
			ms.settle_batch([{"action": "move", "cell": plan.hero_cell}])
		if battle.action_economy.phase != "Active":
			break
		var outcomes: Array = ms.settle_batch([{"action": "dig", "cell": plan.dig_cell}])
		acted = not outcomes.is_empty() and bool(outcomes[0].accepted)
		if acted:
			break
	# 轮末结算触发（step_row 行族只在轮末 emit——停手即结，damage_probe 同款）
	if battle.action_economy.phase == "Active":
		ms.settle_batch([{"action": "stop"}])
	if not acted:
		_problems.append("首战无受理动作（队列断言无行）")
		_finish()
		return
	await process_frame
	# ---- 断言①：排空前后核心状态逐位一致（演出关停零分叉）----
	var snap_before: String = JSON.stringify(battle.diagnostic_snapshot())
	var hp_before: int = int(battle.action_economy.ap) + int(battle.action_economy.rap) * 0   # 观测面双录
	main._flush_row_queue()
	var snap_after: String = JSON.stringify(battle.diagnostic_snapshot())
	check(snap_before == snap_after, "排空前后核心诊断快照逐位一致（AC⑤ 演出关停零分叉）")
	# ---- 断言②：零丢行（结构判据：排空后队列恒空 + 末信号行原文在带——append_row 直落不吞行）----
	check(rows_seen.size() > 0, "结算行已产生（断言前提）")
	check(main._row_queue.is_empty(), "排空后队列恒空（flush 完整性）")
	var last_text := ""
	for i in range(rows_seen.size() - 1, -1, -1):
		var cand_row: Dictionary = rows_seen[i]
		last_text = String(cand_row.get("text", ""))
		if last_text == "":
			last_text = String(cand_row.get("display_name", ""))
		if last_text != "":
			break
	check(last_text != "" and main.log_view.parsed_text().contains(last_text),
		"末信号行原文在明细带（排空不吞行：『%s』）" % last_text)
	# ---- 断言③：段间延迟取数面双态 ----
	UiKit.motion_scale = 1.0
	var d_on: float = main.pace_delay_for("damage", "heal")
	var d_same: float = main.pace_delay_for("damage", "damage")
	check(d_on > 0.0 and d_on >= d_same, "常态段间延迟 >0 且 ≥ 段内（%f/%f）" % [d_on, d_same])
	UiKit.motion_scale = 0.5
	check(main.pace_delay_for("damage", "heal") == 0.0, "减动效段间延迟归零（行不跳过——同帧直落快路）")
	UiKit.motion_scale = 1.0
	_finish()


func _count_row(row: Dictionary, arr: Array) -> void:
	arr.append(row.duplicate(true))


func _finish() -> void:
	for p in ["user://test_pacing_queue_save.json", "user://test_pacing_queue_save.json.tmp"]:
		if FileAccess.file_exists(p):
			DirAccess.remove_absolute(p)
	if _problems.is_empty():
		print("[pacing_queue_test] PASS — 排空零分叉/零丢行/延迟双态 全绿")
		quit(0)
	else:
		for p in _problems:
			push_error("[pacing_queue_test] FAIL — " + p)
			print("[pacing_queue_test] FAIL — " + p)
		quit(1)