# test_combat_status_effect_parity.gd —— Metin2 40250 战斗状态异常与负面减益 1:1 测试套件
extends SceneTree

const CombatStatusEffectSystem = preload("res://combat_status_effect_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_combat_status_effect_parity (Direction 2: Combat Status Effects 1:1) ===")
	
	test_stun_and_immunity()
	test_slow_and_immunity()
	test_poison_mechanics_and_regen_block()
	test_fire_damage_ticks()
	test_cure_and_serialization()
	
	print("\n=======================================================")
	print("Combat Status Effect Tests: %d Passed, %d Failed" % [_passed, _failed])
	print("=======================================================\n")
	
	if _failed > 0:
		quit(1)
	else:
		quit(0)

func test_stun_and_immunity() -> void:
	print("\n--- Test 1: Stun & IMMUNE_STUN (40250 1:1) ---")
	var system = CombatStatusEffectSystem.new()
	
	var attacker = {"id": 1, "is_pc": true, "stun_pct": 20}
	var victim_normal = {"id": 101, "is_pc": false, "immune_stun": false}
	var victim_shielded = {"id": 102, "is_pc": false, "immune_stun": true}
	
	# 1. 普通怪物被击中眩晕 (PvE 4秒)
	var res = system.try_apply_normal_attack_effects(attacker, victim_normal, {"stun_pct_roll": 10})
	_assert(res["applied"].has(CombatStatusEffectSystem.EFFECT_STUN), "Applied stun to normal monster")
	_assert(system.is_stunned(101) == true, "Target 101 is stunned")
	
	# 2. 携带免疫眩晕盾牌的目标 (IMMUNE_STUN) -> 100% 抵抗
	res = system.try_apply_normal_attack_effects(attacker, victim_shielded, {"stun_pct_roll": 5})
	_assert(not res["applied"].has(CombatStatusEffectSystem.EFFECT_STUN), "Stun avoided")
	_assert(res["resisted"].has("immune_stun"), "Resisted via immune_stun")
	_assert(system.is_stunned(102) == false, "Target 102 is not stunned")

func test_slow_and_immunity() -> void:
	print("\n--- Test 2: Slow & IMMUNE_SLOW (40250 1:1) ---")
	var system = CombatStatusEffectSystem.new()
	
	var attacker = {"id": 1, "slow_pct": 15}
	var victim_normal = {"id": 201, "immune_slow": false}
	var victim_immune = {"id": 202, "immune_slow": true}
	
	# 1. 成功施加减速
	var res = system.try_apply_normal_attack_effects(attacker, victim_normal, {"slow_pct_roll": 10})
	_assert(res["applied"].has(CombatStatusEffectSystem.EFFECT_SLOW), "Applied slow")
	_assert(system.get_slow_reduction(201) == 30, "Speed reduced by 30 points")
	
	# 2. 免疫减速抵抗
	res = system.try_apply_normal_attack_effects(attacker, victim_immune, {"slow_pct_roll": 5})
	_assert(res["resisted"].has("immune_slow"), "Resisted via immune_slow")
	_assert(system.get_slow_reduction(202) == 0, "No speed reduction")

func test_poison_mechanics_and_regen_block() -> void:
	print("\n--- Test 3: Poison Damage, HP Regen Block & Monster Single Poison (40250 1:1) ---")
	var system = CombatStatusEffectSystem.new()
	
	var attacker = {"id": 1, "is_pc": true, "level": 50, "poison_pct": 100}
	var monster = {"id": 301, "is_pc": false, "level": 50, "max_hp": 2000, "hp": 2000, "has_been_poisoned": false}
	
	# 1. 成功施加中毒
	var res = system.try_apply_normal_attack_effects(attacker, monster, {"poison_pct_roll": 50})
	_assert(res["applied"].has(CombatStatusEffectSystem.EFFECT_POISON), "Applied poison")
	_assert(system.has_effect(301, CombatStatusEffectSystem.EFFECT_POISON) == true, "Monster has poison effect")
	_assert(system.is_natural_hp_regen_blocked(301) == true, "Poison blocks natural HP regen")
	_assert(monster["has_been_poisoned"] == true, "Monster recorded has_been_poisoned")
	
	# 2. 心跳更新 3 秒触发跳毒 (5% of 2000 = 100 伤害)
	var targets_map = {301: monster}
	system.update(3.0, targets_map)
	_assert(monster["hp"] == 1900, "HP reduced from 2000 to 1900 after first poison tick")
	
	# 3. 怪物在解除中毒后不再被第二次中毒 (40250 char_resist.cpp: m_bHasPoisoned && !IsPC())
	system.clear_effect(301, CombatStatusEffectSystem.EFFECT_POISON)
	res = system.try_apply_normal_attack_effects(attacker, monster, {"poison_pct_roll": 10})
	_assert(not res["applied"].has(CombatStatusEffectSystem.EFFECT_POISON), "Monster rejected second poison")
	_assert(res["resisted"].has("poison_already_poisoned_once"), "Resisted as monster poisoned once")

func test_fire_damage_ticks() -> void:
	print("\n--- Test 4: Fire Burn Damage Ticks (40250 1:1) ---")
	var system = CombatStatusEffectSystem.new()
	
	var victim = {"id": 401, "hp": 500}
	var targets_map = {401: victim}
	
	# 施加烈焰灼烧: 3 次跳伤，每次 60 点
	system.apply_fire(401, 3, 60)
	_assert(system.has_effect(401, CombatStatusEffectSystem.EFFECT_FIRE) == true, "Has fire effect")
	
	# 经过 3 秒
	system.update(3.0, targets_map)
	_assert(victim["hp"] == 440, "HP dropped by 60 to 440")
	
	# 经过 6 秒 (跳完剩余 2 次，共 180 伤害，生命为 500 - 180 = 320)
	system.update(6.0, targets_map)
	_assert(victim["hp"] == 320, "HP dropped to 320")
	_assert(system.has_effect(401, CombatStatusEffectSystem.EFFECT_FIRE) == false, "Fire effect expired")

func test_cure_and_serialization() -> void:
	print("\n--- Test 5: Curing & State Serialization ---")
	var system = CombatStatusEffectSystem.new()
	system.apply_stun(501, 4.0)
	var victim = {"id": 502, "max_hp": 1000, "hp": 1000}
	system.apply_poison(victim)
	
	_assert(system.has_effect(502, CombatStatusEffectSystem.EFFECT_POISON) == true, "Poison active")
	# 使用解毒药剂清除中毒
	var cleared = system.clear_effect(502, CombatStatusEffectSystem.EFFECT_POISON)
	_assert(cleared == true, "Poison cleared via antidote")
	_assert(system.has_effect(502, CombatStatusEffectSystem.EFFECT_POISON) == false, "No longer poisoned")
	
	var data = system.serialize()
	var restored = CombatStatusEffectSystem.new()
	restored.deserialize(data)
	_assert(restored.is_stunned(501) == true, "Restored stun effect")