using System;
using System.Diagnostics;
using System.Windows.Forms;

namespace CTZServerControl
{
    public partial class Frm_Main : Form
    {
        Process process = null;
        public Frm_Main()
        {
            InitializeComponent();
        }

        private void start_Click(object sender, EventArgs e)
        {
            start.Enabled = false;
            ProcessStartInfo startinfo = new ProcessStartInfo(@"C:\Program Files\Java\jre7\bin\java.exe");
            startinfo.Arguments = "-Xmx2048M -jar spigot.jar";
            startinfo.UseShellExecute = false;
            startinfo.WorkingDirectory = AppDomain.CurrentDomain.BaseDirectory + "Spigot";
            startinfo.RedirectStandardInput = true;
            startinfo.RedirectStandardError = true;
            startinfo.RedirectStandardOutput = true;
            startinfo.CreateNoWindow = true;
            process = Process.Start(startinfo);
            process.BeginErrorReadLine();
            process.ErrorDataReceived += Process_OutputDataReceived;
            process.BeginOutputReadLine();
            process.OutputDataReceived += Process_OutputDataReceived;
            process.Exited += Process_Exited;
        }

        private void Process_Exited(object sender, EventArgs e)
        {
            outdata.Items.Add("服务端已退出!");
            start.Enabled = true;
        }

        //新建委托
        private delegate void OutputDataDelegate(string number);
        //委托调用的方法
        private void OutputData(string data)
        {
            bool scroll = this.outdata.TopIndex == getListEndIndex(outdata);
            outdata.Items.Add(data);
            if (scroll) this.outdata.TopIndex = getListEndIndex(outdata);
        }

        private int getListEndIndex(ListBox listbox)
        {
            return listbox.Items.Count - (int)(listbox.Height / listbox.ItemHeight);
        }

        private void Process_OutputDataReceived(object sender, DataReceivedEventArgs e)
        {
            if (e.Data == null)
            {
                process.OutputDataReceived -= Process_OutputDataReceived;
            }
            else
            {
                Invoke(new OutputDataDelegate(OutputData), new object[] { e.Data });
            }
        }

        private void send_Click(object sender, EventArgs e)
        {
            sendcmd();
        }

        private void Frm_Main_FormClosed(object sender, FormClosedEventArgs e)
        {
            process.Kill();
        }

        private void cmd_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.Enter)
            {
                sendcmd();
            }
        }

        private void sendcmd()
        {
            runcmd(cmd.Text);
            cmd.Text = "";
        }

        private void runcmd(string cmd)
        {
            process.StandardInput.WriteLine(cmd);
        }
    }
}