using System;
using System.Data.SqlClient;
using System.Diagnostics;
using System.Drawing;
using System.IO;
using System.IO.Ports;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Windows.Forms;

namespace Scale
{
    public partial class Form1 : Form
    {
        private SerialPort serialPort;

        public Form1()
        {
            InitializeComponent();
            lblTip.Text = "";
            txtEID.KeyDown += TxtEID_KeyDown;
            this.StartPosition = FormStartPosition.CenterScreen;
            txtEID.Focus();
            this.Load += Form1_Load;
            this.FormClosing +=  Form_FormClosing;

            SetFont();
        }

        private void SetFont()
        {
            btnSend.Text = "\ue7a4 手动上报";
            label3.Text = "\ue635 体检号:";
            label4.Text = "\ue7ca 身高:";
            label5.Text = "\ue696 体重:";
            label8.Text = "\ue602 舒张压:";
            label7.Text = "\ue601 收缩压:";
            label9.Text = "\ue89a 脉搏:";
            btnSend.Font = new Font(IconfontHelper.PFCC.Families[0], 18);
            btnSend.Font = new Font(IconfontHelper.PFCC.Families[0], 18);
            label3.Font = new Font(IconfontHelper.PFCC.Families[0], 18);
            label4.Font = new Font(IconfontHelper.PFCC.Families[0], 18);
            label5.Font = new Font(IconfontHelper.PFCC.Families[0], 18);
            label8.Font = new Font(IconfontHelper.PFCC.Families[0], 18);
            label7.Font = new Font(IconfontHelper.PFCC.Families[0], 18);
            label9.Font = new Font(IconfontHelper.PFCC.Families[0], 18);
        }
        private void Form_FormClosing(object sender, FormClosingEventArgs e)
        {
            // 在窗口即将关闭时触发
            if (MessageBox.Show(@"确定要关闭联机程序吗？", "确认关闭", MessageBoxButtons.YesNo) == DialogResult.No)
            {
                // 用户取消关闭操作
                e.Cancel = true;
            }
            else
            {
                try
                {
                    if (serialPort != null && serialPort.IsOpen)
                    { 
                        serialPort.Close();
                        serialPort.Dispose();
                    }
                }
                catch (Exception ex)
                {
                    // 处理异常，例如记录日志或显示错误消息
                    MessageBox.Show($@"关闭串口时发生错误：{ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }

            }
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            DelLog();
            Conn();
        }

        private void TxtEID_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode != Keys.Enter) return;
            // 读取身高体重数据
            ReadWeightHeight();
            // Thread.Sleep(1000);
            // 上传
            Upload();
            e.SuppressKeyPress = true; // 防止回车键产生额外的换行符
        }

        private void btnOpen_Click(object sender, EventArgs e)
        {
            Conn();
        }

        private void btnSend_Click(object sender, EventArgs ee)
        {
            Upload();
        }

        public void TxtEidFocus()
        {
            Invoke(new Action(() => txtEID.Focus()));
        }

        #region 血压仪

        private void Conn()
        {
            if (serialPort != null && serialPort.IsOpen)
            {
                return;
            }
            var list = System.IO.Ports.SerialPort.GetPortNames();
            if (serialPort != null && serialPort.IsOpen) serialPort.Close();
            var port = txt1.Text?.Trim() ?? "COM1";
            // if (list.Length<=0||!list.Contains(port))
            // {
            //     MessageBox.Show(@"未找到串口：" + port);
            //     return;
            // }
            // 初始化串口
            serialPort = new SerialPort();
            // 设置串口参数
            serialPort.PortName = port; // 根据实际情况设置串口名称
            serialPort.BaudRate = 9600; // 波特率
            serialPort.DataBits = 8; // 数据位
            serialPort.Parity = Parity.None; // 校验位
            serialPort.StopBits = StopBits.One; // 停止位
            // serialPort.RtsEnable = false;
            // serialPort.DtrEnable = false;
            serialPort.DataReceived += SerialPort_DataReceived;
            // 设置数据接收事件处理程序
            // 打开串口
            try
            {
                serialPort.Open();
                txt1.Enabled = false;
                Debug.WriteLine("OPEN");
                label1.Invoke(new Action(() => label1.Text = @"血压仪已连接"));
            }
            catch (Exception ex)
            {
                MessageBox.Show(@"无法打开串口：" + ex.Message);
                txt1.Enabled = true;
                // 关闭串口
                if (serialPort.IsOpen)
                {
                    serialPort.Close();
                }
                label1.Invoke(new Action(() => label1.Text = @"血压仪未连接"));
            }
        }

        /// <summary>
        /// 血压仪数据接收
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void SerialPort_DataReceived(object sender, SerialDataReceivedEventArgs e)
        {
            try
            {
                // 处理接收到的数据
                var buffer = new byte[serialPort.BytesToRead];
                serialPort.Read(buffer, 0, buffer.Length);
                var data = Encoding.ASCII.GetString(buffer);
                if (!(data.Length >= 51))
                {
                    MessageBox.Show($@"从仪器接收到错误的数据：{data}");
                    return;
                }
                TxtEidFocus();
                var txtSsyText = data.Substring(40, 3);
                Debug.WriteLine(txtSsyText);
                txtSsy.Invoke(new Action(() => txtSsy.Text = txtSsyText));

                var txtSzyText = data.Substring(44, 3);
                Debug.WriteLine(txtSzyText);
                txtSzy.Invoke(new Action(() => txtSzy.Text = txtSzyText));

                var txtMbText = data.Substring(48, 3);
                Debug.WriteLine(txtMbText);
                txtMb.Invoke(new Action(() => txtMb.Text = txtMbText));

                var weight = txtWeight.Text?.Trim();
                if (string.IsNullOrEmpty(weight))
                {
                    ReadWeightHeight();
                }
            }
            catch (Exception exception)
            {
                MessageBox.Show(@"错误：" + exception.Message);
                // 关闭串口
                if (serialPort.IsOpen) serialPort.Close();
            }
        }

        #endregion

        #region 身高体重仪

        public void ReadWeightHeight()
        {
            try
            {
                // 获取当前程序路径
                var currentPath = AppDomain.CurrentDomain.BaseDirectory;
                // 组合路径，假设 Data 文件夹在当前路径下
                var dataFolderPath = Path.Combine(currentPath, "data");
                // 获取 Data 文件夹下的所有 .log 文件，并按名称排序
                var files = Directory.GetFiles(dataFolderPath, "*.log").OrderBy(f => f).ToArray();

                if (files.Length <= 0) return;
                // 读取第一个文本文件的内容
                var firstFilePath = files[0];
                var content = File.ReadAllText(firstFilePath);
                Debug.WriteLine(firstFilePath);
                Debug.WriteLine(content);
                var match = Regex.Match(content, @"W:(\d+\.\d+)\s+H:(\d+\.\d+)");
                if (match.Success)
                {
                    // 提取身高和体重的值
                    var weight = double.Parse(match.Groups[1].Value).ToString("0.##");
                    var height = double.Parse(match.Groups[2].Value).ToString("0.##");
                    Invoke(new Action(() => txtWeight.Text = weight));
                    Invoke(new Action(() => txtHeight.Text = height));
                }
                // 删除所有文本文件
                foreach (var filePath in files)
                {
                    File.Delete(filePath);
                    Debug.WriteLine($"Deleted: {Path.GetFileName(filePath)}");
                }
            }
            catch (Exception e)
            {
                MessageBox.Show(e.Message);
            }
        }

        private void DelLog()
        {

            // 获取当前程序路径
            var currentPath = AppDomain.CurrentDomain.BaseDirectory;
            // 组合路径，假设 Data 文件夹在当前路径下
            var dataFolderPath = Path.Combine(currentPath, "data");
            // 获取 Data 文件夹下的所有 .log 文件，并按名称排序
            var files = Directory.GetFiles(dataFolderPath, "*.log").OrderBy(f => f).ToArray();
            // 删除所有文本文件
            foreach (var filePath in files)
            {
                File.Delete(filePath); 
            }

        }

        #endregion


        #region 上传数据库

        public void Upload()
        {
            var eid = txtEID.Text?.Trim();
            var weight = txtWeight.Text?.Trim();
            var height = txtHeight.Text?.Trim();
            var systolic = txtSsy.Text?.Trim();
            var diastolic = txtSzy.Text?.Trim();
            var pulseRate = txtMb.Text?.Trim();
            if (string.IsNullOrEmpty(eid)) return;
            if (string.IsNullOrEmpty(weight) &&
                string.IsNullOrEmpty(height) &&
                string.IsNullOrEmpty(systolic) &&
                string.IsNullOrEmpty(diastolic) &&
                string.IsNullOrEmpty(pulseRate)) return;
            var isEid = Int64.TryParse(eid, out var id);
            if (!isEid)
            {
                MessageBox.Show(@"体检号错误，请重新输入！");
                return;
            }
            var result = Insert(id, weight, height, systolic, diastolic, pulseRate);

            lblTip.Text = result ? $"提示：体检号 {eid}，数据上报成功" : $"提示：体检号 {eid}，数据上报失败";
            if (result)
            {
                Invoke(new Action(() => txtEID.Text = ""));
                Invoke(new Action(() => txtWeight.Text = ""));
                Invoke(new Action(() => txtHeight.Text = ""));
                Invoke(new Action(() => txtSsy.Text = ""));
                Invoke(new Action(() => txtSzy.Text = ""));
                Invoke(new Action(() => txtMb.Text = ""));
            }
            TxtEidFocus();
        }

        private const string ConnectionString = @"Data Source=192.168.11.5;Initial Catalog=peisdb;User ID=sa;Password=000626;";

        public static bool Insert(long eid, string weight, string height, string systolic, string diastolic, string pulseRate)
        {
            using (var connection = new SqlConnection(ConnectionString))
            {
                try
                {
                    connection.Open();
                    var insertQuery = $@"
IF NOT EXISTS (
  SELECT 1 FROM Exam_ResultIsm WHERE EID = {eid} AND Weight = '{weight}' AND Height = '{height}' AND Systolic = '{systolic}' AND Diastolic = '{diastolic}' AND PulseRate = '{pulseRate}'
)
BEGIN
INSERT INTO Exam_ResultIsm(EID, Weight, Height, Systolic, Diastolic, PulseRate)
VALUES ({eid}, '{weight}', '{height}', '{systolic}', '{diastolic}', '{pulseRate}')
END";
                    using (var command = new SqlCommand(insertQuery, connection))
                    {
                        command.ExecuteNonQuery();
                    }
                    connection.Close();
                    return true;
                }
                catch (Exception e)
                {
                    MessageBox.Show(e.Message);
                    return false;
                }
            }
        }


        #endregion

        private void button1_Click(object sender, EventArgs e)
        {
            Invoke(new Action(() => txtEID.Text = ""));
            Invoke(new Action(() => txtWeight.Text = ""));
            Invoke(new Action(() => txtHeight.Text = ""));
            Invoke(new Action(() => txtSsy.Text = ""));
            Invoke(new Action(() => txtSzy.Text = ""));
            Invoke(new Action(() => txtMb.Text = ""));

            DelLog();
            txtEID.Focus();
        }
    }
}