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 System.Threading;

namespace ServiceHelper
{
    public enum WorkType
    { 
        Install,
        Uninstall,
        Start,
        Stop,
        Restart,
    }

    public partial class ServiceHelper : Form
    {
        private const string serviceName = "Aca.Certain.MiddleService";
        private const string serviceInstallPath = "Aca.Certain.MiddleService.exe";
        private Progress progress = new Progress();
        public static BackgroundWorker bgWorker = new BackgroundWorker();

        public ServiceHelper()
        {
            InitializeComponent();
            bgWorker.WorkerReportsProgress = true;
            bgWorker.DoWork += new DoWorkEventHandler(bgWorker_DoWork);
            bgWorker.ProgressChanged += new ProgressChangedEventHandler(bgWorker_ProgressChanged);
            bgWorker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(bgWorker_RunWorkerCompleted);
        }

        void bgWorker_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
        {
            progress.Done();
            if (!string.IsNullOrEmpty((string)e.Result))
            {
                MessageBox.Show((string)e.Result, "消息", MessageBoxButtons.OK);
            }
        }

        void bgWorker_ProgressChanged(object sender, ProgressChangedEventArgs e)
        {
            progress.UpdateProgress();
        }

        void bgWorker_DoWork(object sender, DoWorkEventArgs e)
        {
            try
            {
                progress.Reset();
                switch ((WorkType)e.Argument)
                {
                    case WorkType.Install:
                        {
                            ServiceControl.Install(serviceName, serviceInstallPath);
                            e.Result = "安装服务成功！";
                        }
                        break;
                    case WorkType.Uninstall:
                        {
                            ServiceControl.Uninstall(serviceName, serviceInstallPath);
                            e.Result = "卸载服务成功！";
                        }
                        break;
                    case WorkType.Start:
                        {
                            ServiceControl.Start(serviceName);
                            e.Result = "启动服务成功！";
                        }
                        break;
                    case WorkType.Stop:
                        {
                            ServiceControl.Stop(serviceName);
                            e.Result = "停止服务成功！";
                        }
                        break;
                    case WorkType.Restart:
                        {
                            ServiceControl.Restart(serviceName);
                            e.Result = "重启服务成功！";
                        }
                        break;
                }
            }
            catch (Exception ex)
            {
                progress.Hide();
                MessageBox.Show(ex.Message, "错误", MessageBoxButtons.OK);
            }            
        }

        private void InstallBtn_Click(object sender, EventArgs e)
        {
            try
            {
                bgWorker.RunWorkerAsync(WorkType.Install);
                progress.Text = "安装服务中……";
                progress.ShowDialog(this);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "错误", MessageBoxButtons.OK);
            }
        }

        private void UninstallBtn_Click(object sender, EventArgs e)
        {
            try
            {
                bgWorker.RunWorkerAsync(WorkType.Uninstall);
                progress.Text = "卸载服务中……";
                progress.ShowDialog(this);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "错误", MessageBoxButtons.OK);
            }
        }

        private void StartBtn_Click(object sender, EventArgs e)
        {
            try
            {
                bgWorker.RunWorkerAsync(WorkType.Start);
                progress.Text = "启动服务中……";
                progress.ShowDialog(this);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "错误", MessageBoxButtons.OK);
            }
        }

        private void StopBtn_Click(object sender, EventArgs e)
        {
            try
            {
                bgWorker.RunWorkerAsync(WorkType.Stop);
                progress.Text = "停止服务中……";
                progress.ShowDialog(this);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "错误", MessageBoxButtons.OK);
            }
        }

        private void RestartBtn_Click(object sender, EventArgs e)
        {
            try
            {
                bgWorker.RunWorkerAsync(WorkType.Restart);
                progress.Text = "重启服务中……";
                progress.ShowDialog(this);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "错误", MessageBoxButtons.OK);
            }
        }

        private void ConfigBtn_Click(object sender, EventArgs e)
        {
            try
            {
                Settings settings = new Settings();
                settings.ShowDialog(this);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "获取配置失败", MessageBoxButtons.OK);
            }
        }
    }
}