FT479/WPFWCSDemo/ViewModels/LogViewModel.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection.Metadata;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Controls;
using System.Windows;
using CommunityToolkit.Mvvm.ComponentModel;
using System.Reactive.Linq;
using System.Diagnostics;
using System.Threading;

namespace WPFWCSDemo.ViewModels
{
    public partial class LogViewModel : ObservableObject
    {
        public LogViewModel()
        {
            //更新（当日）日志
            //Task.Run(() =>
            //{

            //    while (true)
            //    {
            //        try
            //        {
            //            //获取存储日志的字符串
            //            Content = File.ReadAllText(dirPath + @"logs\2024-10-09\Debug.txt");

            //            Task.Delay(1000);
            //        }
            //        catch (Exception)
            //        {

            //        }

            //    }
            //});

        }


        //存放日志文件路径
        //readonly string dirPath = @"E:\VSProject\WPF\FT472\WPFWCSDemo\bin\Debug\net6.0-windows\";

        //[ObservableProperty]
        //string _content;


        /*
            #region 下拉框内容初始化
            //月份选择下拉框
            cbxMonth.Items.Clear();
            cbxMonth.Items.Add("-请选择月份-");
            cbxMonth.Items.Add("一月");
            cbxMonth.Items.Add("二月");
            cbxMonth.Items.Add("三月");
            cbxMonth.Items.Add("四月");
            cbxMonth.Items.Add("五月");
            cbxMonth.Items.Add("六月");
            cbxMonth.Items.Add("七月");
            cbxMonth.Items.Add("八月");
            cbxMonth.Items.Add("九月");
            cbxMonth.Items.Add("十月");
            cbxMonth.Items.Add("十一月");
            cbxMonth.Items.Add("十二月");

            //下拉框选择初始化
            cbxMonth.SelectedIndex = 0;
            cbxLogName.SelectedIndex = 0;

            #endregion

        }

        /// <summary>
        /// 实时日志【内容更新】事件触发
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void txtLog_TextChanged(object sender, EventArgs e)
        {
            //【搜索】按钮打开当天日志时，令滚动条位于最下
            txtLog.SelectionStart = txtLog.Text.Length;
            txtLog.ScrollToCaret();
        }


        /// <summary>
        /// 【月份】下拉框的值改变事件--→【日志】名称选择的下拉框也随之变化
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void cbxMonth_TextChanged(object sender, EventArgs e)
        {
            //日志文件名选择下拉框
            cbxLogName.Items.Clear();
            //获取存放日志文件夹所有文件全路径
            try
            {
                //尝试获取路径，否则报错
                string[] name = Directory.GetDirectories(dirPath);
                //添加到下拉框
                cbxLogName.Items.Add("-请选择日志-");
                for (int i = 0; i < name.Length; i++)
                {
                    //从文件名筛选符合月份条件的项
                    if (Path.GetFileNameWithoutExtension(name[i]).Contains("-" + cbxMonth.SelectedIndex.ToString("00") + "-"))
                    {
                        //添加当月日志的文件名
                        cbxLogName.Items.Add(Path.GetFileNameWithoutExtension(name[i]));
                    }

                }
                cbxLogName.SelectedIndex = 0;
            }
            catch (Exception)
            {
                return;
            }
        }


        /// <summary>
        /// 【搜索】按钮
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnSearch_Click(object sender, EventArgs e)
        {
            if (cbxMonth.SelectedIndex != 0 && cbxLogName.SelectedIndex == 0)
            {
                MessageBox.Show("请选择要查找历史日志的时间！");
                return;
            }
            if (cbxMonth.SelectedIndex == 0 && cbxLogName.SelectedIndex == 0) return;
            try
            {
                //判断选择的日志文件日期是否为当天
                if (cbxLogName.Text.Equals(DateTime.Now.ToString("yyyy-MM-dd")))
                {
                    //显示实时日志
                    txtLog.Visible = true;
                }
                else
                {
                    if (cbxMonth.SelectedIndex == 0 && cbxLogName.SelectedIndex == 0) return;
                    //获取选中的路径文件内容
                    txtLogHistory.Text = File.ReadAllText(dirPath + cbxLogName.Text + @"/Info.log", Encoding.Default);
                    //隐藏实时日志---显示历史日志
                    txtLog.Visible = false;
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
                return;
            }

        }


        /// <summary>
        /// 【取消/刷新】页面按钮
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnCancel_Click(object sender, EventArgs e)
        {
            //【搜索】按钮打开当天日志时，令滚动条位于最下，相比根据【内容更新】事件触发此效果可能存在的时间间隔有观感提升
            txtLog.SelectionStart = txtLog.Text.Length;
            txtLog.ScrollToCaret();
            //显示实时日志
            txtLog.Visible = true;
        }


        /// <summary>
        /// 打开当日的日志文档
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnOpenFile_Click(object sender, EventArgs e)
        {
            //打开当日的日志文档
            //Process.Start("notepad", dirPath + DateTime.Now.ToString("yyyy-MM-dd") + "/Info.log");
            if (Directory.Exists(dirPath + DateTime.Now.ToString("yyyy-MM-dd")))
            {
                Process.Start(dirPath + DateTime.Now.ToString("yyyy-MM-dd"));
            }
            else
            {
                Process.Start(dirPath);
            }
        }
        */

    }
}