extends Node
## 服务器更新同步属性测试
## Feature: godot-ai-town-game, Property 30: 服务器更新同步

const TEST_ITERATIONS = 50

# 测试结果统计
var test_results = {
	"passed": 0,
	"failed": 0,
	"errors": []
}

func _ready():
	print("\n=== Property Test: Server Update Synchronization ===")
	await test_property_server_update_sync()
	print_results()
	print("=== Property Test Completed ===\n")

## Feature: godot-ai-town-game, Property 30: 服务器更新同步
func test_property_server_update_sync():
	"""
	属性测试：服务器更新同步
	对于任意服务器推送的更新消息，客户端应该实时更新本地游戏状态以反映服务器的变化
	
	本测试验证：
	1. 消息协议的序列化/反序列化正确性
	2. 不同类型消息的数据完整性
	3. 消息格式的有效性
	
	验证需求: 12.5
	"""
	print("\n[Property Test] Testing server update synchronization...")
	print("Running ", TEST_ITERATIONS, " iterations...")
	
	# 测试不同类型的服务器更新消息
	var message_types = [
		MessageProtocol.MessageType.CHARACTER_MOVE,
		MessageProtocol.MessageType.CHARACTER_STATE,
		MessageProtocol.MessageType.WORLD_STATE
	]
	
	for i in range(TEST_ITERATIONS):
		# 随机选择消息类型
		var msg_type = message_types[randi() % message_types.size()]
		
		# 生成随机测试数据
		var original_message = _generate_test_message(msg_type)
		
		# 模拟服务器发送：序列化消息
		var serialized = MessageProtocol.serialize(original_message)
		
		# 模拟客户端接收：反序列化消息
		var received_message = MessageProtocol.deserialize(serialized)
		
		await get_tree().process_frame
		
		# 验证消息是否正确接收
		if received_message.is_empty():
			test_results["failed"] += 1
			test_results["errors"].append({
				"iteration": i + 1,
				"type": "deserialization_failed",
				"original": original_message,
				"serialized": serialized
			})
			continue
		
		# 验证消息格式
		if not MessageProtocol.validate_message(received_message):
			test_results["failed"] += 1
			test_results["errors"].append({
				"iteration": i + 1,
				"type": "invalid_message_format",
				"message": received_message
			})
			continue
		
		# 验证数据完整性
		var data_matches = _verify_message_data(original_message, received_message)
		
		if data_matches:
			test_results["passed"] += 1
		else:
			test_results["failed"] += 1
			test_results["errors"].append({
				"iteration": i + 1,
				"type": "data_mismatch",
				"expected": original_message,
				"actual": received_message
			})

func _generate_test_message(msg_type: MessageProtocol.MessageType) -> Dictionary:
	"""生成测试消息"""
	var data = {}
	
	match msg_type:
		MessageProtocol.MessageType.CHARACTER_MOVE:
			data = {
				"character_id": "char_" + str(randi()),
				"position": {
					"x": randf_range(0, 1000),
					"y": randf_range(0, 1000)
				},
				"direction": {
					"x": randf_range(-1, 1),
					"y": randf_range(-1, 1)
				}
			}
		
		MessageProtocol.MessageType.CHARACTER_STATE:
			data = {
				"character_id": "char_" + str(randi()),
				"is_online": randi() % 2 == 0,
				"position": {
					"x": randf_range(0, 1000),
					"y": randf_range(0, 1000)
				}
			}
		
		MessageProtocol.MessageType.WORLD_STATE:
			var num_characters = randi() % 5 + 1
			var characters = []
			for j in range(num_characters):
				characters.append({
					"id": "char_" + str(j),
					"name": "Character" + str(j),
					"position": {
						"x": randf_range(0, 1000),
						"y": randf_range(0, 1000)
					},
					"is_online": randi() % 2 == 0
				})
			data = {
				"characters": characters
			}
	
	return MessageProtocol.create_message(msg_type, data)

func _verify_message_data(expected: Dictionary, actual: Dictionary) -> bool:
	"""验证消息数据是否匹配"""
	# 验证消息类型
	if expected.get("type") != actual.get("type"):
		print("  Type mismatch: ", expected.get("type"), " vs ", actual.get("type"))
		return false
	
	# 验证数据字段存在
	if not actual.has("data"):
		print("  Missing data field")
		return false
	
	# 基本验证：检查关键字段
	var expected_data = expected.get("data", {})
	var actual_data = actual.get("data", {})
	
	# 根据消息类型验证特定字段
	var msg_type_str = expected.get("type")
	
	if msg_type_str == "character_move":
		var char_id_match = expected_data.get("character_id") == actual_data.get("character_id")
		var pos_match = _compare_positions(expected_data.get("position"), actual_data.get("position"))
		return char_id_match and pos_match
	
	elif msg_type_str == "character_state":
		var char_id_match = expected_data.get("character_id") == actual_data.get("character_id")
		var online_match = expected_data.get("is_online") == actual_data.get("is_online")
		return char_id_match and online_match
	
	elif msg_type_str == "world_state":
		var expected_chars = expected_data.get("characters", [])
		var actual_chars = actual_data.get("characters", [])
		return expected_chars.size() == actual_chars.size()
	
	return true

func _compare_positions(pos1: Dictionary, pos2: Dictionary) -> bool:
	"""比较两个位置是否相近"""
	if not pos1 or not pos2:
		return false
	
	var x1 = pos1.get("x", 0.0)
	var y1 = pos1.get("y", 0.0)
	var x2 = pos2.get("x", 0.0)
	var y2 = pos2.get("y", 0.0)
	
	return abs(x1 - x2) < 0.01 and abs(y1 - y2) < 0.01

func print_results():
	"""打印测试结果"""
	print("\n=== Test Results ===")
	print("Total iterations: ", TEST_ITERATIONS)
	print("Passed: ", test_results["passed"])
	print("Failed: ", test_results["failed"])
	
	if test_results["failed"] > 0:
		print("\n❌ FAILED: Some iterations failed")
		print("First 5 errors:")
		for i in range(min(5, test_results["errors"].size())):
			var error = test_results["errors"][i]
			print("  Error ", i + 1, ": ", error)
	else:
		print("\n✅ PASSED: All server updates synchronized correctly")
		print("Property 30 validated: Server updates are properly received and processed")