# test_treasure_box_key_parity.gd —— Metin2 40250 金银宝箱与钥匙解锁系统 1:1 测试套件
extends SceneTree

const TreasureBoxKeySystem = preload("res://treasure_box_key_system.gd")

var _passed := 0
var _failed := 0

func _assert(cond: bool, msg: String) -> void:
	if cond:
		_passed += 1
		print("  [PASS] %s" % msg)
	else:
		_failed += 1
		printerr("  [FAIL] %s" % msg)

func _init() -> void:
	print("\n=== Running test_treasure_box_key_parity (Direction 2: Treasure Boxes & Keys 1:1) ===")
	
	test_silver_box_and_key()
	test_gold_box_and_key()
	test_mismatch_and_rejections()
	test_plus_boxes()
	test_history_and_serialization()
	
	print("\n=======================================================")
	print("Treasure Box & Key Tests: %d Passed, %d Failed" % [_passed, _failed])
	print("=======================================================\n")
	
	if _failed > 0:
		quit(1)
	else:
		quit(0)

func test_silver_box_and_key() -> void:
	print("\n--- Test 1: Silver Key Unlocks Silver Box (40250 1:1) ---")
	var system = TreasureBoxKeySystem.new()
	
	var unlocked_signals := []
	system.box_unlocked.connect(func(box, key, reward):
		unlocked_signals.append({"box": box, "key": key, "reward": reward})
	)
	
	var inv: Array = [
		{"vnum": 50008, "count": 2}, # 银钥匙 x2 (slot 0)
		{"vnum": 50006, "count": 1}  # 银宝箱 x1 (slot 1)
	]
	
	_assert(system.can_unlock(50008, 50006) == true, "Silver key matches silver box")
	
	# 开启宝箱，强制掉落索引 0 (技能书 50300)
	var res = system.unlock_box_with_key(inv, 0, 1, 0)
	_assert(res["ok"] == true, "Unlocked silver box successfully")
	_assert(inv[0] != null and inv[0]["count"] == 1, "Key count decremented from 2 to 1")
	# 原宝箱槽位已被新发放的奖励技能书复用填充
	_assert(res["reward"]["vnum"] == 50300, "Rewarded skill book (50300)")
	var has_box = false
	for it in inv:
		if it != null and it.get("vnum", 0) == 50006:
			has_box = true
	_assert(has_box == false, "Silver box was consumed and no longer in inventory")
	_assert(unlocked_signals.size() == 1, "box_unlocked signal fired")
	_assert(unlocked_signals[0]["box"] == 50006, "Signal reports silver box")

func test_gold_box_and_key() -> void:
	print("\n--- Test 2: Gold Key Unlocks Gold Box (40250 1:1) ---")
	var system = TreasureBoxKeySystem.new()
	
	var inv: Array = [
		{"vnum": 50009, "count": 1}, # 金钥匙 (slot 0)
		{"vnum": 50007, "count": 1}  # 金宝箱 (slot 1)
	]
	
	_assert(system.can_unlock(50009, 50007) == true, "Gold key matches gold box")
	
	# 开启金宝箱，强制掉落索引 0 (祝福卷轴 25040)
	var res = system.unlock_box_with_key(inv, 0, 1, 0)
	_assert(res["ok"] == true, "Unlocked gold box successfully")
	var has_gold_key = false
	var has_gold_box = false
	for it in inv:
		if it != null:
			if it.get("vnum", 0) == 50009:
				has_gold_key = true
			if it.get("vnum", 0) == 50007:
				has_gold_box = true
	_assert(has_gold_key == false, "Gold key consumed")
	_assert(has_gold_box == false, "Gold box consumed")
	_assert(res["reward"]["vnum"] == 25040, "Rewarded Blessing Scroll (25040)")

func test_mismatch_and_rejections() -> void:
	print("\n--- Test 3: Key Mismatch & Invalid Targets (40250 1:1) ---")
	var system = TreasureBoxKeySystem.new()
	
	var fail_signals := []
	system.unlock_failed.connect(func(reason):
		fail_signals.append(reason)
	)
	
	var inv: Array = [
		{"vnum": 50008, "count": 1}, # 银钥匙 (slot 0)
		{"vnum": 50007, "count": 1}, # 金宝箱 (slot 1)
		{"vnum": 27987, "count": 1}  # 珍珠蚌 (slot 2, 非宝箱)
	]
	
	# 1. 银钥匙对金宝箱 -> 拒绝
	_assert(system.can_unlock(50008, 50007) == false, "Silver key cannot unlock gold box")
	var res = system.unlock_box_with_key(inv, 0, 1)
	_assert(res["ok"] == false, "Rejected mismatch")
	_assert(res["reason"] == "KEY_MISMATCH", "Reason is KEY_MISMATCH")
	_assert(inv[0]["count"] == 1, "Key not consumed")
	_assert(inv[1]["count"] == 1, "Box not consumed")
	
	# 2. 钥匙拖拽至非宝箱物品 -> 拒绝
	res = system.unlock_box_with_key(inv, 0, 2)
	_assert(res["ok"] == false, "Rejected non-box target")
	_assert(res["reason"] == "NOT_A_TREASURE_BOX", "Reason is NOT_A_TREASURE_BOX")
	
	# 3. 非钥匙道具拖拽 -> 拒绝
	res = system.unlock_box_with_key(inv, 2, 1)
	_assert(res["ok"] == false, "Rejected non-key item")
	_assert(res["reason"] == "NOT_A_KEY", "Reason is NOT_A_KEY")
	
	_assert(fail_signals.size() == 3, "All 3 failure signals emitted")

func test_plus_boxes() -> void:
	print("\n--- Test 4: Silver+ and Gold+ Boxes (40250 1:1) ---")
	var system = TreasureBoxKeySystem.new()
	
	var inv: Array = [
		{"vnum": 50014, "count": 1}, # 银钥匙+
		{"vnum": 50012, "count": 1}, # 银宝箱+
		{"vnum": 50015, "count": 1}, # 金钥匙+
		{"vnum": 50013, "count": 1}  # 金宝箱+
	]
	
	# 银钥匙+ 开 银宝箱+
	var res = system.unlock_box_with_key(inv, 0, 1, 0)
	_assert(res["ok"] == true, "Unlocked Silver Box+")
	_assert(res["reward"]["count"] == 2, "Silver+ gave 2 skill books")
	
	# 金钥匙+ 开 金宝箱+
	res = system.unlock_box_with_key(inv, 2, 3, 0)
	_assert(res["ok"] == true, "Unlocked Gold Box+")
	_assert(res["reward"]["vnum"] == 25040 and res["reward"]["count"] == 2, "Gold+ gave 2 Blessing Scrolls")

func test_history_and_serialization() -> void:
	print("\n--- Test 5: History Tracking & Serialization ---")
	var system = TreasureBoxKeySystem.new()
	var inv: Array = [
		{"vnum": 50008, "count": 1},
		{"vnum": 50006, "count": 1}
	]
	system.unlock_box_with_key(inv, 0, 1, 0)
	
	var history = system.get_open_history()
	_assert(history.size() == 1, "Recorded 1 unlock history")
	_assert(history[0]["box_vnum"] == 50006, "History records box 50006")
	
	var data = system.serialize()
	var restored = TreasureBoxKeySystem.new()
	restored.deserialize(data)
	_assert(restored.get_open_history().size() == 1, "Restored 1 history item")
	
	system.clear_history()
	_assert(system.get_open_history().is_empty(), "Cleared history")