using SimuTools.Tools;
using System;
using System.IO;
using System.Windows.Forms;

namespace SimuTools
{
    public partial class FrmMain : Form
    {
        private bool flag;

        public FrmMain()
        {
            InitializeComponent();
        }

        private void FrmMain_Load(object sender, EventArgs e)
        {
            LogOut.Info("启动程序...");
        }

        private void FrmMain_FormClosing(object sender, FormClosingEventArgs e)
        {
            LogOut.Info("关闭程序...");
        }

        private void btnTerrainPath_Click(object sender, EventArgs e)
        {
            OpenFileDialog dialog = new OpenFileDialog();
            dialog.Filter = "Tif files(*.tif)|*.tif|Tiff files (*.tiff)|*.tiff";
            dialog.RestoreDirectory = true;

            string path = this.txtTerrainPath.Text.Trim();
            if (File.Exists(path))
            {
                dialog.InitialDirectory = Path.GetDirectoryName(path);
            }

            if (dialog.ShowDialog() == DialogResult.OK)
            {
                this.txtTerrainPath.Text = dialog.FileName;
            }
        }

        private void btnWaterPath_Click(object sender, EventArgs e)
        {
            selectFolder(this.txtWaterPath, "水面");
        }

        private void btnFlowPath_Click(object sender, EventArgs e)
        {
            selectFolder(this.txtFlowPath, "流速");
        }

        private void btnOutPath_Click(object sender, EventArgs e)
        {
            selectFolder(this.txtOutPath, "输出");
        }

        private void selectFolder(TextBox tb, string title)
        {
            using (FolderBrowserDialog dialog = new FolderBrowserDialog())
            {
                string path = tb.Text.Trim();
                if (Directory.Exists(path))
                {
                    dialog.SelectedPath = path;
                }

                dialog.Description = "请选择" + title + "目录...";
                if (dialog.ShowDialog() == DialogResult.OK)
                {
                    tb.Text = dialog.SelectedPath;
                }
            }
        }

        private void btnRun_Click(object sender, EventArgs e)
        {
            string terrainFile = this.txtTerrainPath.Text.Trim();
            string waterPath = this.txtWaterPath.Text.Trim();
            string flowPath = this.txtFlowPath.Text.Trim();
            string outPath = this.txtOutPath.Text.Trim();

            if (!File.Exists(terrainFile))
            {
                ShowErr("地形文件，要求必须存在！");
                return;
            }
            if (!Directory.Exists(waterPath) || !Directory.Exists(flowPath) || !Directory.Exists(outPath))
            {
                ShowErr("水面、流速和输出目录，要求必须存在！");
                return;
            }

            if (flag) return;
            try
            {
                flag = true;
                LogOut.Info("开始运行 >>");
                Tools.Handle.Run(terrainFile, waterPath, flowPath, outPath);
                LogOut.Info("运行结束 >>");
                flag = false;
            }
            catch (Exception ex)
            {
                flag = false;
                LogOut.Error(ex.StackTrace);
                ShowErr("运行出错：" + ex.Message);
            }
        }

        private void ShowErr(string message)
        {
            MessageBox.Show(message, "提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
        }
    }
}