using System.Diagnostics;

namespace ThreatSource.Tools.MissileSimulation
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("综合导弹模拟程序启动...");
            var simulator = new ComprehensiveMissileSimulator();
            // 如果需要，可以在启动时设置默认日志级别，或依赖Simulator的默认值
            simulator.SetLogLevel(SourceLevels.Verbose); 
            ApplicationHostLoop(simulator);
            Console.WriteLine("\n程序已退出。");
        }

        static void ApplicationHostLoop(ComprehensiveMissileSimulator simulator)
        {
            bool exitProgram = false;
            while (!exitProgram)
            {
                Console.WriteLine("\n=== 导弹仿真系统主菜单 ===");
                string missileStatus = string.IsNullOrEmpty(simulator.SelectedMissileId) ? "未选择" : $"已选: {simulator.SelectedMissileDisplayName}";
                
                string sensorStatusString = "";
                if (!string.IsNullOrEmpty(simulator.SelectedMissileId))
                {
                    var indicators = simulator.GetActiveIndicators();
                    var firstActiveIndicator = indicators.FirstOrDefault(ind => ind.IsActive);
                    if (firstActiveIndicator.Name != null)
                    {
                        sensorStatusString = $"(已激活: {firstActiveIndicator.Name})";
                    }
                    else
                    {
                        sensorStatusString = "(无默认激活指示器)";
                    }
                }
                else
                {
                    sensorStatusString = "(需先选导弹)";
                }

                Console.WriteLine($"1. 选择导弹 ({missileStatus})");
                Console.WriteLine($"2. 配置传感器 {sensorStatusString}");
                Console.WriteLine($"3. 配置干扰 {simulator.GetActiveJammingDescription()} {(string.IsNullOrEmpty(simulator.SelectedMissileId) ? "(需先选导弹)" : "")}");
                Console.WriteLine($"4. 设置日志级别 (当前级别: {simulator.CurrentLogLevel})");
                Console.WriteLine($"5. 开始仿真 {(string.IsNullOrEmpty(simulator.SelectedMissileId) ? "(需先选导弹)" : "")}");
                Console.WriteLine($"6. 设置仿真步长 (当前: {simulator.TimeStep}s)");
                Console.WriteLine("0. 退出程序");
                Console.Write("\n请选择: ");
                string choice = Console.ReadLine()?.ToLower() ?? string.Empty;

                switch (choice)
                {
                    case "1":
                        SelectMissile(simulator);
                        break;
                    case "2":
                        if (!string.IsNullOrEmpty(simulator.SelectedMissileId))
                            ConfigureSensors(simulator);
                        else
                            Console.WriteLine("请先选择导弹。");
                        break;
                    case "3":
                        if (!string.IsNullOrEmpty(simulator.SelectedMissileId))
                            ConfigureJamming(simulator);
                        else
                            Console.WriteLine("请先选择导弹。");
                        break;
                    case "4":
                        ShowLogLevelMenu(simulator);
                        break;
                    case "5":
                        if (!string.IsNullOrEmpty(simulator.SelectedMissileId))
                        {
                            RunSimulationInstance(simulator);
                        }
                        else
                        {
                            Console.WriteLine("请先选择导弹并完成基本配置 (选择导弹是启动仿真的最低要求)。");
                        }
                        break;
                    case "6":
                        ConfigureTimeStep(simulator);
                        break;
                    case "0":
                        exitProgram = true;
                        break;
                    default:
                        Console.WriteLine("无效选择，请重试。");
                        break;
                }
            }
        }
        static void ShowLogLevelMenu(ComprehensiveMissileSimulator simulator)
        {
            bool backToMainMenu = false;
            while (!backToMainMenu)
            {
                Console.WriteLine("\n--- 设置日志级别 ---");
                Console.WriteLine("1. Off (关闭所有Trace/Debug输出)");
                Console.WriteLine("2. Error (仅错误信息)");
                Console.WriteLine("3. Warning (警告及错误)");
                Console.WriteLine("4. Information (普通信息、警告、错误)");
                Console.WriteLine("5. Verbose (所有信息，包括Debug.WriteLine)");
                Console.WriteLine("0. 返回主菜单");
                Console.Write("请选择日志级别: ");
                string input = Console.ReadLine()?.ToLower() ?? string.Empty;

                SourceLevels currentLevel = simulator.CurrentLogLevel; 
                SourceLevels selectedLevel = currentLevel; // 默认使用当前级别
                bool levelSet = false;

                switch (input)
                {
                    case "1": selectedLevel = SourceLevels.Off; levelSet = true; break;
                    case "2": selectedLevel = SourceLevels.Error; levelSet = true; break;
                    case "3": selectedLevel = SourceLevels.Warning; levelSet = true; break;
                    case "4": selectedLevel = SourceLevels.Information; levelSet = true; break;
                    case "5": selectedLevel = SourceLevels.Verbose; levelSet = true; break;
                    case "0": backToMainMenu = true; break;
                    default: Console.WriteLine("无效选择，请重试。"); break;
                }

                if (levelSet)
                {
                    simulator.SetLogLevel(selectedLevel);
                    // 设置日志级别后，会由simulator打印确认
                    return; // 设置后返回主菜单
                }
            }
        }

        static void RunSimulationInstance(ComprehensiveMissileSimulator simulator)
        {
            Console.WriteLine("\n--- 开始仿真 --- ");
            var simulationEndedEvent = new ManualResetEvent(false);
            simulator.SimulationEnded += (sender, e) => {
                simulationEndedEvent.Set();
                // 防止多次调用RunSimulationInstance时出现的问题
                if (sender is ComprehensiveMissileSimulator sim)
                {
                    sim.SimulationEnded -= (s, args) => simulationEndedEvent.Set(); // 尝试取消订阅，精确的lambda匹配比较困难
                }
            };

            var simulationThread = new Thread(simulator.Start);
            simulationThread.Start();

            Console.WriteLine("仿真已开始运行。在主菜单输入 '0' 可在下次返回主菜单时退出程序。");
            Console.WriteLine("仿真过程中，您可以随时按 Enter 键尝试提前中止当前仿真实例并返回主菜单。");

            bool simulationForceStopped = false;
            while (!simulationEndedEvent.WaitOne(100)) // 每100ms检查一次仿真是否结束
            {
                if (Console.KeyAvailable)
                {
                    var keyInfo = Console.ReadKey(intercept: true);
                    if (keyInfo.Key == ConsoleKey.Enter)
                    {
                        Console.WriteLine("\n用户请求中止当前仿真实例...");
                        simulator.Stop(); 
                        simulationForceStopped = true;
                        break;
                    }
                }
            }

            // 等待仿真线程实际完成，特别是如果被强制停止。
            simulationThread.Join();

            if (simulationForceStopped)
            {
                Console.WriteLine("当前仿真实例已被用户中止。");
            }
            else
            {
                Console.WriteLine("当前导弹仿真自然结束。");
            }
            
            Console.WriteLine("按任意键返回主菜单...");
            Console.ReadKey(); // 等待用户确认后返回主菜单
        }

        static void SelectMissile(ComprehensiveMissileSimulator simulator)
        {
            var missiles = new[]
            {
                ("LSGM_1", "激光半主动制导导弹"),
                ("LBRM_1", "激光驾束制导导弹"),
                ("TSM_1", "末敏弹"),
                ("ICGM_1", "红外指令制导导弹"),
                ("ITGM_1", "红外成像末制导导弹"),
                ("MMWG_1", "毫米波末制导导弹"),
                ("CGGM_1", "复合制导导弹")
            };
            
            while (true)
            {
                Console.WriteLine("\n--- 选择导弹类型 ---");
                for (int i = 0; i < missiles.Length; i++)
                {
                    Console.WriteLine($"  {i + 1}. {missiles[i].Item2}");
                }
                Console.WriteLine("  0. 返回主菜单");
                Console.Write("请选择: ");
                
                string input = Console.ReadLine()?.ToLower() ?? string.Empty;
                if (input == "0")
                    return;
                    
                if (int.TryParse(input, out int choice) && 
                    choice >= 1 && choice <= missiles.Length)
                {
                    simulator.SelectMissile(missiles[choice - 1].Item1);
                    Console.WriteLine($"已选择: {simulator.SelectedMissileDisplayName}");
                    return;
                }
                Console.WriteLine("无效选择，请重试。");
            }
        }
        
        static void ConfigureSensors(ComprehensiveMissileSimulator simulator)
        {
            while (true)
            {
                Console.WriteLine("\n--- 配置传感器和指示器 ---");
                Console.WriteLine("当前传感器状态：");
                var indicators = simulator.GetActiveIndicators();
                if (indicators.Length == 0)
                {
                    Console.WriteLine("当前导弹类型没有可配置的独立传感器/指示器，或未实现获取接口。");
                }
                else
                {
                    for (int i = 0; i < indicators.Length; i++)
                    {
                        Console.WriteLine($"  {i + 1}. {indicators[i].Name} [{(indicators[i].IsActive ? "激活" : "未激活")}]");
                    }
                }
                Console.WriteLine("  0. 返回主菜单");
                Console.Write("请选择切换状态的传感器，或返回: ");
                
                string input = Console.ReadLine()?.ToLower() ?? string.Empty;
                if (input == "0")
                    return;
                    
                if (int.TryParse(input, out int choice))
                {
                    if (choice >= 1 && choice <= indicators.Length)
                    {
                        simulator.ToggleIndicator(indicators[choice - 1].Id);
                        return;
                    }
                    else
                    {
                        Console.WriteLine("无效选择，请重试。");
                    }
                }
                else
                {
                    Console.WriteLine("无效输入，请输入数字。");
                }
            }
        }
        
        static void ConfigureJamming(ComprehensiveMissileSimulator simulator)
        {
            var availableJammingOptions = simulator.GetAvailableJammingOptions();
            var currentlyActiveJammingsFromSimulator = simulator.GetCurrentlyActiveJammings();
            var jammingStatus = new bool[availableJammingOptions.Length];

            for (int i = 0; i < availableJammingOptions.Length; i++)
            {
                var currentOptionForLoop = availableJammingOptions[i]; // Renamed to avoid conflict
                if (currentlyActiveJammingsFromSimulator.Any(activeJam => activeJam.JammerId == currentOptionForLoop.JammerId && activeJam.Type == currentOptionForLoop.Type))
                {
                    jammingStatus[i] = true;
                }
                else
                {
                    jammingStatus[i] = false;
                }
            }
            
            while (true)
            {
                Console.WriteLine("\n--- 配置干扰方式 ---");
                Console.WriteLine($"当前导弹: {simulator.SelectedMissileDisplayName}");
                
                if (availableJammingOptions.Length == 0)
                {
                    Console.WriteLine("当前导弹类型没有可配置的干扰选项。");
                }
                else
                {
                    Console.WriteLine("可用干扰方式：");
                    for (int i = 0; i < availableJammingOptions.Length; i++)
                    {
                        var option = availableJammingOptions[i];
                        Console.WriteLine($"  {i + 1}. {option.DisplayName} [{(jammingStatus[i] ? "激活" : "未激活")}] " +
                                         $"(干扰模式: {option.Mode}, 作用对象: {option.Target})");
                    }
                }
                
                Console.WriteLine("  0. 返回主菜单");
                Console.Write("请选择切换状态的干扰项，或返回: ");
                
                string input = Console.ReadLine()?.ToLower() ?? string.Empty;
                if (input == "0")
                    return;
                    
                if (int.TryParse(input, out int choice))
                {
                    if (choice >= 1 && choice <= availableJammingOptions.Length)
                    {
                        var option = availableJammingOptions[choice - 1];
                        jammingStatus[choice - 1] = !jammingStatus[choice - 1]; // Toggle local status for display
                        
                        if (jammingStatus[choice - 1])
                            simulator.ApplyJamming(option.Type, option.DisplayName, option.JammerId, option.Mode, option.Target);
                        else
                            simulator.ClearJamming(option.Type, option.DisplayName, option.JammerId);
                        
                        return;
                    }
                    else
                    {
                        Console.WriteLine("无效选择，请重试。");
                    }
                }
                else
                {
                     Console.WriteLine("无效输入，请输入数字。");
                }
            }
        }

        static void ConfigureTimeStep(ComprehensiveMissileSimulator simulator)
        {
            bool backToMainMenu = false;
            while (!backToMainMenu)
            {
                Console.WriteLine("\n--- 设置仿真步长 ---");
                Console.WriteLine($"当前步长: {simulator.TimeStep}s");
                Console.WriteLine("1. 低精度 (0.02s)");
                Console.WriteLine("2. 中精度 (0.01s)");
                Console.WriteLine("3. 高精度 (0.005s)");
                Console.WriteLine("0. 返回主菜单");
                Console.Write("请选择步长: ");
                string input = Console.ReadLine()?.ToLower() ?? string.Empty;

                switch (input)
                {
                    case "1":
                        simulator.TimeStep = 0.02;
                        Console.WriteLine($"仿真步长已设置为: {simulator.TimeStep}s (低精度)");
                        return; // 设置后返回主菜单
                    case "2":
                        simulator.TimeStep = 0.01;
                        Console.WriteLine($"仿真步长已设置为: {simulator.TimeStep}s (中精度)");
                        return; // 设置后返回主菜单
                    case "3":
                        simulator.TimeStep = 0.005;
                        Console.WriteLine($"仿真步长已设置为: {simulator.TimeStep}s (高精度)");
                        return; // 设置后返回主菜单
                    case "0":
                        backToMainMenu = true;
                        break;
                    default:
                        Console.WriteLine("无效选择，请重试。");
                        break;
                }
            }
        }
    }
}