using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using AutoFocusTool.Calib;
using AutoFocusTool.Imaging;

namespace AutoFocusTool
{
    // well选择器 + 手动转well + 一键全自动初始化(勾选well + 独立窗口)
    public partial class MainWindow
    {
        private CancellationTokenSource _calibCts;
        private const int WELL_COUNT = 16;
        private readonly List<CheckBox> _wellChecks = new List<CheckBox>();

        // 业务闭环：转well时优先应用 calibration.json 的标定结果(P0-1)。
        private readonly CalibrationManager _calibMgr = new CalibrationManager();

        /// <summary>连接成功后填充：手动well下拉(1-16) + 16个勾选框。</summary>
        private void InitWellSelectors()
        {
            // 手动控制的well下拉
            CmbWell.Items.Clear();
            for (int i = 1; i <= WELL_COUNT; i++) CmbWell.Items.Add($"well {i}");
            CmbWell.SelectedIndex = 0;

            // 自动标定的16个勾选框(默认全选)
            if (_wellChecks.Count == 0)
            {
                WellCheckPanel.Children.Clear();
                for (int i = 1; i <= WELL_COUNT; i++)
                {
                    var cb = new CheckBox
                    {
                        Content = i.ToString(),
                        IsChecked = true,
                        Foreground = Brushes.White,
                        Width = 46,
                        Margin = new Thickness(2)
                    };
                    _wellChecks.Add(cb);
                    WellCheckPanel.Children.Add(cb);
                }
            }
        }

        // ── 需求1：手动转到选定well ──
        // P0-1 业务闭环：优先应用 calibration.json 的标定参数(水平/Z/曝光)，
        // 标定合格(检到圆且峰比>1.2)才用JSON，否则降级到EEPROM。
        private void BtnGoWell_Click(object sender, RoutedEventArgs e)
        {
            LogAction($"点击 转到well={CmbWell.SelectedIndex + 1}");
            if (_motor == null) { Log("未连接。"); return; }
            if (_busy) { Log("设备忙。"); return; }
            int well = CmbWell.SelectedIndex + 1;
            int houseSn = _current?.HouseSn ?? 0;
            int motorDelay = ParseInt(TxtMotorDelay.Text, 1500);
            Task.Run(() =>
            {
                _busy = true;
                try
                {
                    _motor.MotorDelayMs = motorDelay;
                    bool useCalib = _calibMgr.HasValidCalibration(houseSn, well);
                    var (hpos, zpos, exp) = _calibMgr.GetWellParams(houseSn, well, _motor);
                    if (hpos < 0) { Log($"读well{well}位置失败"); return; }

                    _motor.HorizontalMoveTo(hpos);
                    if (zpos > 0) _motor.VerticalMoveTo(zpos);
                    if (useCalib && exp > 0 && _camera != null) _camera.SetExposure(exp);
                    _curWell = well;

                    string src = useCalib ? "标定结果" : "EEPROM(未标定/不合格)";
                    string expInfo = (useCalib && exp > 0) ? $" 曝光={exp}" : "";
                    Log($"已转到 well{well}[{src}]: 水平={hpos} Z={zpos}{expInfo}");
                    Dispatcher.Invoke(() =>
                    {
                        TxtWellInfo.Text = $"well{well}[{src}]: 水平={hpos} Z={zpos}{expInfo}";
                        UpdateParamDisplay();
                    });
                }
                catch (Exception ex) { Log($"转well异常: {ex.Message}"); }
                finally { _busy = false; }
                RefreshPositions();
            });
        }

        // ── 需求2：全选/全不选 ──
        private void BtnWellAll_Click(object sender, RoutedEventArgs e)
        { LogAction("点击 全选well"); foreach (var cb in _wellChecks) cb.IsChecked = true; }
        private void BtnWellNone_Click(object sender, RoutedEventArgs e)
        { LogAction("点击 全不选well"); foreach (var cb in _wellChecks) cb.IsChecked = false; }

        // ── 需求2、3：一键全自动初始化（勾选well + 独立窗口显示）──
        private void BtnAutoInit_Click(object sender, RoutedEventArgs e)
        {
            LogAction("点击 一键全自动初始化");
            if (_camera == null || _motor == null) { Log("需要先连接相机+串口。"); return; }
            if (_busy) { Log("设备忙，请稍候。"); return; }

            // 收集勾选的well
            var wells = new List<int>();
            for (int i = 0; i < _wellChecks.Count; i++)
                if (_wellChecks[i].IsChecked == true) wells.Add(i + 1);
            if (wells.Count == 0) { Log("请至少勾选一个well。"); return; }

            int motorDelay = ParseInt(TxtMotorDelay.Text, 1500);
            int houseSn = _current?.HouseSn ?? 0;
            string port = _current?.PortName ?? "";
            int ccdIdx = _current?.CcdIndex ?? -1;
            string ccdSn = _current?.CcdSn ?? "";

            // 弹出标定窗口
            var win = new CalibWindow { Owner = this };
            _calibCts = new CancellationTokenSource();
            var token = _calibCts.Token;
            win.StopRequested += () => _calibCts?.Cancel();
            win.Show();
            win.SetProgress("开始自动标定", $"舱{houseSn}，共 {wells.Count} 个well: {string.Join(",", wells)}");

            Task.Run(() =>
            {
                _busy = true;
                try
                {
                    _motor.MotorDelayMs = motorDelay;
                    _motor.OpenLED();
                    Thread.Sleep(200);

                    var engine = new CalibrationEngine(_motor, _camera)
                    {
                        Log = Log,
                        OnFrame = buf =>
                        {
                            try
                            {
                                var bmp = ImageConverter.ToBitmapSource(buf, _camWidth, _camHeight);
                                Dispatcher.BeginInvoke((Action)(() => { ImgPreview.Source = bmp; win.SetCurrentFrame(bmp); }));
                            }
                            catch { }
                        },
                        OnStep = (msg, circle, exp) =>
                        {
                            string circlePart = circle != null && circle.Found
                                ? $"圆心偏移 Y:{circle.OffsetYPct:F0}% X:{circle.OffsetXPct:F0}% 完整:{circle.Complete}"
                                : "未检出well圆";
                            string expPart = exp != null ? $" 曝光信息:{exp}" : "";
                            // P2: 不再拼 _lastZ/_lastH——它们仅在 RefreshPositions 时更新，标定过程中是陈旧值，
                            // 会误导排查（日志会全程显示标定前的旧 Z/水平）。msg 本身已含当前步骤的真实命令 Z。
                            string param = $"{circlePart}{expPart}";
                            win.SetCurrentInfo(param, msg);
                            AutoFocusTool.Logging.FileLogger.Data("CALIB", $"{msg} | {param}");
                        }
                    };

                    var houseCalib = new HouseCalib { House = houseSn, Port = port, CcdIndex = ccdIdx, CcdSn = ccdSn };
                    string resultDir = @"C:\claudeFile\TL\AutoFocusTool\calib_result";
                    System.IO.Directory.CreateDirectory(resultDir);

                    int done = 0;
                    foreach (int well in wells)
                    {
                        if (token.IsCancellationRequested) { Log("标定已停止。"); break; }
                        done++;
                        win.SetProgress($"正在标定 well {well}", $"进度 {done}/{wells.Count}");
                        win.MarkActive(well);

                        int hpos = _motor.ReadWellHorizontalPos(well);
                        int zZero = _motor.ReadWellFocusZero(well);
                        Log($"\n=== well{well} EEPROM: 水平={hpos} Z零点={zZero} ===");
                        if (hpos < 0) { Log($"well{well} 读位置失败,跳过"); continue; }
                        if (zZero < 0) zZero = 0;

                        var wc = engine.CalibrateWell(well, hpos, zZero);
                        houseCalib.Wells.Add(wc);

                        // 存终图 + 在窗口对应格显示
                        try
                        {
                            _camera.SetExposure(wc.Exposure);
                            _motor.HorizontalMoveTo(wc.HorizontalPulse);
                            _motor.VerticalMoveTo(wc.FocusZ);
                            Thread.Sleep(150);
                            _camera.GrabRgb();
                            var buf = _camera.GetSourceBuffer();
                            if (buf == null) { Log($"  well{well} 存图跳过(缓冲为空)"); continue; }
                            string imgPath = $"{resultDir}\\house{houseSn}_well{well}_标定后.bmp";
                            ImageConverter.SaveBmp(buf, _camWidth, _camHeight, imgPath);
                            var bmp = ImageConverter.ToBitmapSource(buf, _camWidth, _camHeight);
                            bool ok = Math.Abs(wc.CenterOffsetPct) < 12 && wc.CircleFound && wc.PeakRatio > 1.2;
                            win.SetWellResult(well, bmp,
                                $"well{well} 水平{wc.HorizontalPulse} Y偏{wc.CenterOffsetPct:F0}% 曝{wc.Exposure} Z{wc.FocusZ}", ok);
                            Log($"  well{well} 标定后画面已存: {imgPath}");
                        }
                        catch (Exception ex) { Log($"  存图失败: {ex.Message}"); }
                    }
                    _motor.CloseLED();

                    // 存档
                    string path = @"C:\claudeFile\TL\AutoFocusTool\calibration.json";
                    var file = new CalibrationFile
                    {
                        TlSn = $"house{houseSn}",
                        Date = DateTime.Now.ToString("yyyy-MM-dd HH:mm")
                    };
                    file.Houses.Add(houseCalib);
                    file.Save(path);
                    _calibMgr.RefreshCache();  // P0-1: 重写JSON后刷新缓存，转well立即用新结果
                    Log($"=== 标定完成，已存 {path} ===");
                    win.SetProgress("标定完成 ✓", $"已标定 {houseCalib.Wells.Count} 个well，结果已保存");
                }
                catch (Exception ex) { Log($"标定异常: {ex.Message}"); win.SetProgress("标定异常", ex.Message); }
                finally { _busy = false; RefreshPositions(); }
            }, token);
        }
    }
}