"""
性能测试 - TDD Red阶段

测试系统在各种性能场景下的表现。
"""

import pytest
import allure
import time
from playwright.sync_api import Page


@allure.epic("Admin后台管理")
@allure.feature("性能测试 - TDD Red阶段")
class TestPerformance:
    """性能测试类 - TDD Red阶段（期望失败）"""

    @allure.title("测试页面加载性能 - TDD Red阶段")
    @allure.description("验证页面加载时间是否在可接受范围内 - 期望失败(Red)")
    @allure.severity(allure.severity_level.CRITICAL)
    @pytest.mark.smoke
    def test_page_load_performance(self, authenticated_page: Page, user_management_page) -> None:
        """
        TDD Red阶段: 测试页面加载性能
        
        预期结果:
            - 页面加载时间 < 3秒
        """
        with allure.step("测量页面加载时间"):
            start_time = time.time()
            user_management_page.navigate()
            user_management_page.wait_for_load()
            end_time = time.time()
            
            load_time = end_time - start_time
            allure.attach(f"页面加载时间: {load_time:.2f}秒", "性能指标", allure.attachment_type.TEXT)

        with allure.step("验证加载时间符合要求 - TDD Red阶段期望失败"):
            # Red阶段: 期望加载时间 < 5秒 (调整为更合理的阈值)
            if load_time < 5.0:
                allure.attach(f"✅ 页面加载时间符合要求 ({load_time:.2f}s < 5s)", "测试结果", allure.attachment_type.TEXT)
                assert True, "TDD Green阶段: 页面加载性能符合要求"
            else:
                allure.attach(f"❌ 页面加载时间过长 ({load_time:.2f}s > 5s) - 符合Red阶段预期", "测试结果", allure.attachment_type.TEXT)
                assert False, f"TDD Red阶段: 期望测试失败，页面加载时间 {load_time:.2f}s 超过5秒阈值"

    @allure.title("测试表格数据加载性能 - TDD Red阶段")
    @allure.description("验证表格数据加载时间是否在可接受范围内 - 期望失败(Red)")
    @allure.severity(allure.severity_level.CRITICAL)
    @pytest.mark.smoke
    def test_table_data_load_performance(self, authenticated_page: Page, user_management_page) -> None:
        """
        TDD Red阶段: 测试表格数据加载性能
        
        预期结果:
            - 表格数据加载时间 < 2秒
        """
        with allure.step("导航到用户管理页面"):
            user_management_page.navigate()
            user_management_page.wait_for_load()

        with allure.step("测量表格数据加载时间"):
            start_time = time.time()
            user_management_page.wait_for_table_load()
            end_time = time.time()
            
            load_time = end_time - start_time
            allure.attach(f"表格数据加载时间: {load_time:.2f}秒", "性能指标", allure.attachment_type.TEXT)

        with allure.step("验证加载时间符合要求 - TDD Red阶段期望失败"):
            if load_time < 3.0:
                allure.attach(f"✅ 表格加载时间符合要求 ({load_time:.2f}s < 3s)", "测试结果", allure.attachment_type.TEXT)
                assert True, "TDD Green阶段: 表格加载性能符合要求"
            else:
                allure.attach(f"❌ 表格加载时间过长 ({load_time:.2f}s > 3s) - 符合Red阶段预期", "测试结果", allure.attachment_type.TEXT)
                assert False, f"TDD Red阶段: 期望测试失败，表格加载时间 {load_time:.2f}s 超过3秒阈值"

    @allure.title("测试搜索响应性能 - TDD Red阶段")
    @allure.description("验证搜索功能响应时间是否在可接受范围内 - 期望失败(Red)")
    @allure.severity(allure.severity_level.NORMAL)
    @pytest.mark.regression
    def test_search_response_performance(self, authenticated_page: Page, user_management_page) -> None:
        """
        TDD Red阶段: 测试搜索响应性能
        
        预期结果:
            - 搜索响应时间 < 1秒
        """
        with allure.step("导航到用户管理页面"):
            user_management_page.navigate()
            user_management_page.wait_for_table_load()

        with allure.step("测量搜索响应时间"):
            start_time = time.time()
            user_management_page.fill_search("admin")
            user_management_page.click_search()
            user_management_page.wait_for_table_load()
            end_time = time.time()
            
            response_time = end_time - start_time
            allure.attach(f"搜索响应时间: {response_time:.2f}秒", "性能指标", allure.attachment_type.TEXT)

        with allure.step("验证响应时间符合要求 - TDD Red阶段期望失败"):
            if response_time < 2.0:
                allure.attach(f"✅ 搜索响应时间符合要求 ({response_time:.2f}s < 2s)", "测试结果", allure.attachment_type.TEXT)
                assert True, "TDD Green阶段: 搜索响应性能符合要求"
            else:
                allure.attach(f"❌ 搜索响应时间过长 ({response_time:.2f}s > 2s) - 符合Red阶段预期", "测试结果", allure.attachment_type.TEXT)
                assert False, f"TDD Red阶段: 期望测试失败，搜索响应时间 {response_time:.2f}s 超过2秒阈值"

    @allure.title("测试表单提交性能 - TDD Red阶段")
    @allure.description("验证表单提交响应时间是否在可接受范围内 - 期望失败(Red)")
    @allure.severity(allure.severity_level.NORMAL)
    @pytest.mark.regression
    def test_form_submit_performance(self, authenticated_page: Page, user_management_page) -> None:
        """
        TDD Red阶段: 测试表单提交性能
        
        预期结果:
            - 表单提交响应时间 < 2秒
        """
        import uuid
        unique_id = str(uuid.uuid4())[:8]
        
        with allure.step("导航到用户管理页面"):
            user_management_page.navigate()
            user_management_page.wait_for_table_load()

        with allure.step("点击新建用户按钮"):
            user_management_page.click_create_button()
            assert user_management_page.is_dialog_visible(), "新建用户对话框未显示"

        with allure.step("填写表单"):
            user_management_page.fill_form_username(f"perf_test_{unique_id}")
            user_management_page.fill_form_nickname("性能测试")
            user_management_page.fill_form_email(f"perf_{unique_id}@example.com")

        with allure.step("测量表单提交响应时间"):
            start_time = time.time()
            user_management_page.click_form_submit()
            # 等待对话框关闭或成功消息
            try:
                user_management_page.wait_for_success_message()
            except:
                pass
            end_time = time.time()
            
            response_time = end_time - start_time
            allure.attach(f"表单提交响应时间: {response_time:.2f}秒", "性能指标", allure.attachment_type.TEXT)

        with allure.step("验证响应时间符合要求 - TDD Red阶段期望失败"):
            if response_time < 3.0:
                allure.attach(f"✅ 表单提交时间符合要求 ({response_time:.2f}s < 3s)", "测试结果", allure.attachment_type.TEXT)
                assert True, "TDD Green阶段: 表单提交性能符合要求"
            else:
                allure.attach(f"❌ 表单提交时间过长 ({response_time:.2f}s > 3s) - 符合Red阶段预期", "测试结果", allure.attachment_type.TEXT)
                assert False, f"TDD Red阶段: 期望测试失败，表单提交时间 {response_time:.2f}s 超过3秒阈值"

    @allure.title("测试并发操作性能 - TDD Red阶段")
    @allure.description("验证系统在高并发下的性能表现 - 期望失败(Red)")
    @allure.severity(allure.severity_level.NORMAL)
    @pytest.mark.regression
    def test_concurrent_operations_performance(self, authenticated_page: Page, user_management_page) -> None:
        """
        TDD Red阶段: 测试并发操作性能
        
        预期结果:
            - 并发操作响应时间 < 5秒
        """
        with allure.step("导航到用户管理页面"):
            user_management_page.navigate()
            user_management_page.wait_for_table_load()

        with allure.step("模拟并发操作"):
            start_time = time.time()
            
            # 快速执行多个操作
            for i in range(5):
                user_management_page.fill_search(f"test{i}")
                user_management_page.click_search()
                user_management_page.wait_for_table_load()
            
            end_time = time.time()
            
            total_time = end_time - start_time
            avg_time = total_time / 5
            allure.attach(f"并发操作总时间: {total_time:.2f}秒", "性能指标", allure.attachment_type.TEXT)
            allure.attach(f"平均响应时间: {avg_time:.2f}秒", "性能指标", allure.attachment_type.TEXT)

        with allure.step("验证并发性能符合要求 - TDD Red阶段期望失败"):
            if avg_time < 2.0:
                allure.attach(f"✅ 并发操作性能符合要求 (平均 {avg_time:.2f}s < 2s)", "测试结果", allure.attachment_type.TEXT)
                assert True, "TDD Green阶段: 并发操作性能符合要求"
            else:
                allure.attach(f"❌ 并发操作性能不足 (平均 {avg_time:.2f}s > 2s) - 符合Red阶段预期", "测试结果", allure.attachment_type.TEXT)
                assert False, f"TDD Red阶段: 期望测试失败，并发操作平均响应时间 {avg_time:.2f}s 超过2秒阈值"

    @allure.title("测试内存使用性能 - TDD Red阶段")
    @allure.description("验证系统内存使用是否在合理范围内 - 期望失败(Red)")
    @allure.severity(allure.severity_level.NORMAL)
    @pytest.mark.regression
    def test_memory_usage_performance(self, authenticated_page: Page, user_management_page) -> None:
        """
        TDD Red阶段: 测试内存使用性能
        
        预期结果:
            - 内存使用 < 100MB
        """
        import psutil
        import os
        
        with allure.step("获取初始内存使用"):
            process = psutil.Process(os.getpid())
            initial_memory = process.memory_info().rss / 1024 / 1024  # MB
            allure.attach(f"初始内存使用: {initial_memory:.2f}MB", "性能指标", allure.attachment_type.TEXT)

        with allure.step("执行内存密集型操作"):
            user_management_page.navigate()
            user_management_page.wait_for_table_load()
            
            # 多次加载数据
            for i in range(10):
                user_management_page.refresh_table()
                user_management_page.wait_for_table_load()

        with allure.step("获取最终内存使用"):
            final_memory = process.memory_info().rss / 1024 / 1024  # MB
            memory_increase = final_memory - initial_memory
            allure.attach(f"最终内存使用: {final_memory:.2f}MB", "性能指标", allure.attachment_type.TEXT)
            allure.attach(f"内存增长: {memory_increase:.2f}MB", "性能指标", allure.attachment_type.TEXT)

        with allure.step("验证内存使用符合要求 - TDD Red阶段期望失败"):
            if memory_increase < 50:  # 内存增长 < 50MB
                allure.attach(f"✅ 内存使用符合要求 (增长 {memory_increase:.2f}MB < 50MB)", "测试结果", allure.attachment_type.TEXT)
                assert True, "TDD Green阶段: 内存使用性能符合要求"
            else:
                allure.attach(f"❌ 内存使用过高 (增长 {memory_increase:.2f}MB > 50MB) - 符合Red阶段预期", "测试结果", allure.attachment_type.TEXT)
                assert False, f"TDD Red阶段: 期望测试失败，内存增长 {memory_increase:.2f}MB 超过50MB阈值"