using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using XCamera;
using XCamera.Models;

namespace Test
{
    public partial class Form1 : Form
    {
        private bool _isInitialized = false;
        private bool _isConnected = false;
        private bool _isCapturing = false;
        private Thread _captureThread;
        private bool _shouldStopCapture = false;

        public Form1()
        {
            InitializeComponent();
            InitializeEvents();
            UpdateUI();
        }

        /// <summary>
        /// 初始化事件处理
        /// </summary>
        private void InitializeEvents()
        {
            // 订阅XCamera事件
            XCamera.LedStatusUpdated += OnLedStatusUpdated;
            XCamera.ConnectionStateChanged += OnConnectionStateChanged;
            XCamera.CaptureStateChanged += OnCaptureStateChanged;
            XCamera.ErrorOccurred += OnErrorOccurred;
        }

        /// <summary>
        /// 1. 初始化
        /// </summary>
        private void btnInitialize_Click(object sender, EventArgs e)
        {
            try
            {
                LogMessage("正在初始化...");
                
                // 使用默认配置文件路径
                string configPath = System.IO.Path.Combine(Application.StartupPath, "config", "sample_config.json");
                
                if (XCamera.Initialize(configPath))
                {
                    _isInitialized = true;
                    LogMessage("初始化成功！");
                    
                    // 显示配置信息
                    var config = XCamera.GetCurrentConfig();
                    if (config != null)
                    {
                        LogMessage($"摄像头IP: {config.IpAddress}");
                        LogMessage($"TCP端口: {config.TcpPort}");
                        LogMessage($"LED区域数: {config.LedRegions.Count}");
                    }
                }
                else
                {
                    LogMessage("初始化失败！");
                }
            }
            catch (Exception ex)
            {
                LogMessage($"初始化错误: {ex.Message}");
            }
            
            UpdateUI();
        }

        /// <summary>
        /// 2. 设置配置文件路径
        /// </summary>
        private void btnSetConfigFile_Click(object sender, EventArgs e)
        {
            try
            {
                using (OpenFileDialog openFileDialog = new OpenFileDialog())
                {
                    openFileDialog.Filter = "JSON文件|*.json|所有文件|*.*";
                    openFileDialog.Title = "选择配置文件";
                    
                    if (openFileDialog.ShowDialog() == DialogResult.OK)
                    {
                        LogMessage($"正在加载配置文件: {openFileDialog.FileName}");
                        
                        if (XCamera.SetConfigFile(openFileDialog.FileName))
                        {
                            LogMessage("配置文件加载成功！");
                            
                            // 显示配置信息
                            var config = XCamera.GetCurrentConfig();
                            if (config != null)
                            {
                                LogMessage($"摄像头IP: {config.IpAddress}");
                                LogMessage($"LED区域数: {config.LedRegions.Count}");
                            }
                        }
                        else
                        {
                            LogMessage("配置文件加载失败！");
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                LogMessage($"配置文件加载错误: {ex.Message}");
            }
        }

        /// <summary>
        /// 3. 启动摄像头
        /// </summary>
        private void btnStartCamera_Click(object sender, EventArgs e)
        {
            try
            {
                if (!_isInitialized)
                {
                    LogMessage("请先初始化！");
                    return;
                }
                
                LogMessage("正在启动摄像头...");
                
                if (XCamera.StartCamera())
                {
                    LogMessage("摄像头启动成功！");
                }
                else
                {
                    LogMessage("摄像头启动失败！");
                }
            }
            catch (Exception ex)
            {
                LogMessage($"启动摄像头错误: {ex.Message}");
            }
            
            UpdateUI();
        }

        /// <summary>
        /// 4. 开始捕获图像
        /// </summary>
        private void btnStartCapture_Click(object sender, EventArgs e)
        {
            try
            {
                if (!_isConnected)
                {
                    LogMessage("请先连接摄像头！");
                    return;
                }
                
                if (_isCapturing)
                {
                    LogMessage("已经在捕获中！");
                    return;
                }
                
                LogMessage("正在开始捕获图像...");
                
                if (XCamera.StartCapture(1000)) // 1秒间隔
                {
                    LogMessage("开始捕获图像成功！");
                }
                else
                {
                    LogMessage("开始捕获图像失败！");
                }
            }
            catch (Exception ex)
            {
                LogMessage($"开始捕获错误: {ex.Message}");
            }
            
            UpdateUI();
        }

        /// <summary>
        /// 5. LED灯识别
        /// </summary>
        private void btnDetectLeds_Click(object sender, EventArgs e)
        {
            try
            {
                if (!_isConnected)
                {
                    LogMessage("请先连接摄像头！");
                    return;
                }
                
                LogMessage("正在识别LED灯...");
                
                var statuses = XCamera.DetectLeds();
                LogMessage($"检测到 {statuses.Count} 个LED灯:");
                
                foreach (var status in statuses)
                {
                    LogMessage($"  {status.GetStatusDescription()}");
                }
                
                // 显示图像（如果有的话）
                DisplayLedImage(statuses);
            }
            catch (Exception ex)
            {
                LogMessage($"LED识别错误: {ex.Message}");
            }
        }

        /// <summary>
        /// 6. 状态查询
        /// </summary>
        private void btnGetLedStatuses_Click(object sender, EventArgs e)
        {
            try
            {
                if (!_isConnected)
                {
                    LogMessage("请先连接摄像头！");
                    return;
                }
                
                LogMessage("正在查询LED状态...");
                
                var statuses = XCamera.GetLedStatuses();
                LogMessage($"当前LED状态 ({statuses.Count} 个):");
                
                foreach (var status in statuses)
                {
                    LogMessage($"  {status.GetStatusDescription()}");
                }
            }
            catch (Exception ex)
            {
                LogMessage($"状态查询错误: {ex.Message}");
            }
        }

        /// <summary>
        /// 7. 区域设置窗口
        /// </summary>
        private void btnShowRegionEditor_Click(object sender, EventArgs e)
        {
            try
            {
                LogMessage("正在打开区域编辑器...");
                XCamera.ShowRegionEditor();
                LogMessage("区域编辑器已关闭");
            }
            catch (Exception ex)
            {
                LogMessage($"区域编辑器错误: {ex.Message}");
            }
        }

        /// <summary>
        /// 8. 资源释放
        /// </summary>
        private void btnShutdown_Click(object sender, EventArgs e)
        {
            try
            {
                LogMessage("正在释放资源...");
                
                if (_isCapturing)
                {
                    XCamera.StopCapture();
                }
                
                if (_isConnected)
                {
                    XCamera.StopCamera();
                }
                
                XCamera.Shutdown();
                
                _isInitialized = false;
                _isConnected = false;
                _isCapturing = false;
                
                LogMessage("资源已释放");
            }
            catch (Exception ex)
            {
                LogMessage($"资源释放错误: {ex.Message}");
            }
            
            UpdateUI();
        }

        /// <summary>
        /// 停止捕获
        /// </summary>
        private void btnStopCapture_Click(object sender, EventArgs e)
        {
            try
            {
                if (!_isCapturing)
                {
                    LogMessage("当前未在捕获中！");
                    return;
                }
                
                LogMessage("正在停止捕获...");
                XCamera.StopCapture();
                LogMessage("捕获已停止");
            }
            catch (Exception ex)
            {
                LogMessage($"停止捕获错误: {ex.Message}");
            }
            
            UpdateUI();
        }

        /// <summary>
        /// 停止摄像头
        /// </summary>
        private void btnStopCamera_Click(object sender, EventArgs e)
        {
            try
            {
                if (!_isConnected)
                {
                    LogMessage("摄像头未连接！");
                    return;
                }
                
                LogMessage("正在停止摄像头...");
                
                if (_isCapturing)
                {
                    XCamera.StopCapture();
                }
                
                XCamera.StopCamera();
                LogMessage("摄像头已停止");
            }
            catch (Exception ex)
            {
                LogMessage($"停止摄像头错误: {ex.Message}");
            }
            
            UpdateUI();
        }

        /// <summary>
        /// LED状态更新事件处理
        /// </summary>
        private void OnLedStatusUpdated(object sender, LedStatusEventArgs e)
        {
            if (InvokeRequired)
            {
                BeginInvoke(new Action<object, LedStatusEventArgs>(OnLedStatusUpdated), sender, e);
                return;
            }
            
            LogMessage($"[{DateTime.Now:HH:mm:ss.fff}] LED状态更新:");
            foreach (var status in e.Statuses)
            {
                LogMessage($"  {status.GetStatusDescription()}");
            }
        }

        /// <summary>
        /// 连接状态变更事件处理
        /// </summary>
        private void OnConnectionStateChanged(object sender, ConnectionStateEventArgs e)
        {
            if (InvokeRequired)
            {
                BeginInvoke(new Action<object, ConnectionStateEventArgs>(OnConnectionStateChanged), sender, e);
                return;
            }
            
            _isConnected = e.IsConnected;
            LogMessage($"[{DateTime.Now:HH:mm:ss.fff}] 摄像头连接状态: {(e.IsConnected ? "已连接" : "已断开")}");
            UpdateUI();
        }

        /// <summary>
        /// 捕获状态变更事件处理
        /// </summary>
        private void OnCaptureStateChanged(object sender, CaptureStateEventArgs e)
        {
            if (InvokeRequired)
            {
                BeginInvoke(new Action<object, CaptureStateEventArgs>(OnCaptureStateChanged), sender, e);
                return;
            }
            
            _isCapturing = e.IsCapturing;
            LogMessage($"[{DateTime.Now:HH:mm:ss.fff}] 图像捕获状态: {(e.IsCapturing ? "开始捕获" : "停止捕获")}");
            UpdateUI();
        }

        /// <summary>
        /// 错误事件处理
        /// </summary>
        private void OnErrorOccurred(object sender, ErrorEventArgs e)
        {
            if (InvokeRequired)
            {
                BeginInvoke(new Action<object, ErrorEventArgs>(OnErrorOccurred), sender, e);
                return;
            }
            
            LogMessage($"[{DateTime.Now:HH:mm:ss.fff}] 错误: {e.ErrorMessage}");
        }

        /// <summary>
        /// 日志消息
        /// </summary>
        private void LogMessage(string message)
        {
            if (InvokeRequired)
            {
                BeginInvoke(new Action<string>(LogMessage), message);
                return;
            }
            
            string timestamp = DateTime.Now.ToString("HH:mm:ss.fff");
            txtLog.AppendText($"[{timestamp}] {message}" + Environment.NewLine);
            txtLog.ScrollToCaret();
        }

        /// <summary>
        /// 显示LED图像
        /// </summary>
        private void DisplayLedImage(List<LedStatus> statuses)
        {
            // 这里可以添加显示LED图像的逻辑
            // 例如：在PictureBox中绘制LED状态的可视化表示
            
            if (statuses.Count > 0)
            {
                // 创建简单的可视化表示
                Bitmap bitmap = new Bitmap(LedImage.Width, LedImage.Height);
                using (Graphics g = Graphics.FromImage(bitmap))
                {
                    g.Clear(Color.Black);
                    
                    int ledCount = statuses.Count;
                    int ledWidth = LedImage.Width / Math.Max(ledCount, 1);
                    int ledHeight = LedImage.Height / 2;
                    
                    for (int i = 0; i < statuses.Count; i++)
                    {
                        var status = statuses[i];
                        Rectangle ledRect = new Rectangle(i * ledWidth + 10, LedImage.Height / 4, ledWidth - 20, ledHeight);
                        
                        // 根据状态设置颜色
                        Color ledColor = GetLedColor(status);
                        using (Brush brush = new SolidBrush(ledColor))
                        {
                            g.FillEllipse(brush, ledRect);
                        }
                        
                        // 绘制标签
                        using (Font font = new Font("Arial", 8))
                        using (Brush textBrush = new SolidBrush(Color.White))
                        {
                            string label = $"{status.RegionName}\n{status.State}";
                            g.DrawString(label, font, textBrush, ledRect.X, ledRect.Bottom + 5);
                        }
                    }
                }
                
                LedImage.Image = bitmap;
            }
        }

        /// <summary>
        /// 获取LED颜色
        /// </summary>
        private Color GetLedColor(LedStatus status)
        {
            if (status.State == LedState.Off)
                return Color.Gray;
            
            switch (status.DetectedColor)
            {
                case LedColor.Red:
                    return status.IsBlinking ? Color.Pink : Color.Red;
                case LedColor.Yellow:
                    return status.IsBlinking ? Color.LightYellow : Color.Yellow;
                case LedColor.Blue:
                    return status.IsBlinking ? Color.LightBlue : Color.Blue;
                case LedColor.Green:
                    return status.IsBlinking ? Color.LightGreen : Color.Green;
                default:
                    return Color.DarkGray;
            }
        }

        /// <summary>
        /// 更新UI状态
        /// </summary>
        private void UpdateUI()
        {
            btnInitialize.Enabled = !_isInitialized;
            btnSetConfigFile.Enabled = _isInitialized;
            btnStartCamera.Enabled = _isInitialized && !_isConnected;
            btnStopCamera.Enabled = _isConnected;
            btnStartCapture.Enabled = _isConnected && !_isCapturing;
            btnStopCapture.Enabled = _isCapturing;
            btnDetectLeds.Enabled = _isConnected;
            btnGetLedStatuses.Enabled = _isConnected;
            btnShowRegionEditor.Enabled = _isInitialized;
            btnShutdown.Enabled = _isInitialized;
            
            // 更新状态标签
            if (_isCapturing)
                lblStatus.Text = "状态: 正在捕获";
            else if (_isConnected)
                lblStatus.Text = "状态: 已连接";
            else if (_isInitialized)
                lblStatus.Text = "状态: 已初始化";
            else
                lblStatus.Text = "状态: 未初始化";
                
            lblStatus.ForeColor = _isConnected ? Color.Green : Color.Red;
        }

        /// <summary>
        /// 窗体关闭事件
        /// </summary>
        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            try
            {
                // 确保释放资源
                if (_isCapturing)
                {
                    XCamera.StopCapture();
                }
                
                if (_isConnected)
                {
                    XCamera.StopCamera();
                }
                
                if (_isInitialized)
                {
                    XCamera.Shutdown();
                }
            }
            catch
            {
                // 忽略关闭时的错误
            }
        }
    }
}