using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

using CB.Common;
using CB.Data;
using CB.Entity;
using CB.Framework;
using System.IO;

namespace CB.Admin.Plugins.SpecialColumn
{
    public partial class ColumnEdit : AdminPage
    {
        string imgpath = "";
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!Page.IsPostBack)
            {
                InitData();
            }
        }

        protected override void InitData()
        {
            var entity = CB.Data.ColumnService.Get(WRequest.GetQueryInt("id"));
            if (null != entity)
            {
                txtName.Text = entity.Name;
                txtRewriteUrl.Text = entity.RewriteUrl;
                imglogo.ImageUrl = entity.Logo;
                ddlLottery.SelectedValue = entity.Lottery;
                ddlType.SelectedValue = entity.TypeName;
                txtStatus.Text = entity.Status.ToString();
                txtWords.Text = entity.Words;
                txtAbout.Text = entity.About;
                txtTitle.Text = entity.hTitle;
                txtKeywords.Text = entity.hKeywords;
                txtDescription.Text = entity.hDescription;
                labID.Text = entity.Id.ToString();
            }
            base.InitData();
        }

        protected void btnUpdate_Click(object sender, EventArgs e)
        {
            var entity = new ColumnInfo()
            {
                Id = TypeConverter.StrToInt(labID.Text),
                Name = txtName.Text.Trim(),
                RewriteUrl = txtRewriteUrl.Text.Trim(),
                Logo =imglogo.ImageUrl,
                Lottery = ddlLottery.SelectedValue.Trim(),
                TypeName = ddlType.SelectedValue.Trim(),
                Status = TypeConverter.StrToInt(txtStatus.Text),
                Words = txtWords.Text.Trim(),
                About = txtAbout.Text.Trim(),
                hTitle = txtTitle.Text.Trim(),
                hKeywords = txtKeywords.Text.Trim(),
                hDescription = txtDescription.Text.Trim()
            };

            if (string.IsNullOrEmpty(entity.Name))
            {
                ShowMessageBox("名称不能为空!"); return;
            }
            if (string.IsNullOrEmpty(entity.RewriteUrl))
            {
                ShowMessageBox("URL重写不能为空！"); return;
            }
            if (string.IsNullOrEmpty(entity.Lottery))
            {
                ShowMessageBox("彩种不能为空！"); return;
            }
            if (string.IsNullOrEmpty(entity.TypeName))
            {
                ShowMessageBox("类型不能为空！"); return;
            }

            bool ok = false;
            ok = 0 < entity.Id ? CB.Data.ColumnService.Update(entity) : CB.Data.ColumnService.Save(entity);
            if (ok)
            { ShowMessageBox("保存成功！", "ColumnEdit.aspx?authPage=" + authPage + "&id=" + labID.Text); }
            else
            { ShowMessageBox("保存失败！"); }
        }

        protected void btnUpload_Click(object sender, EventArgs e)
        {
            if (upfile.HasFile)
            {
                string fileExt = Path.GetExtension(upfile.FileName).ToString().ToLower();
                if (!CheckFileExt(fileExt, ".jpg,.gif,.jpeg"))
                {
                    ShowMessageBox("只允许上传的.JPG.gif.jepg图片文件!");
                }
                else
                {
                    HttpPostedFile file = upfile.PostedFile;
                    byte[] buffer = new byte[file.ContentLength];
                    double lentk = (((double)file.ContentLength / (double)1024) / (double)1024);
                    if (lentk < 1)
                    {
                        Stream inputStream = upfile.FileContent;
                        inputStream.Read(buffer, 0, file.ContentLength);
                        inputStream.Close();
                        if (UploadFile(buffer,fileExt))
                        {
                            this.imglogo.ImageUrl = imgpath;
                            lblmes.Text = "上传成功";
                        }
                        else
                        {
                            lblmes.Text = "上传失败";
                        }
                    }
                    else
                    {
                        ShowMessageBox("您上传的文件过大，请重新上传！");
                    }
                }
            }
            else
            {
                ShowMessageBox("未选择图库或未选择上传图片文件");
            }
        }
        #region 检查文件类型
        /// <summary>
        /// 检查文件类型
        /// </summary>
        /// <param name="fileExt"></param>
        /// <param name="fileExts"></param>
        /// <returns></returns>
        private bool CheckFileExt(string fileExt, string fileExts)
        {
            fileExt = fileExt.Substring(1);
            foreach (string str in fileExts.Split(new char[] { ',' }))
            {
                if (str.Trim().IndexOf(fileExt.Trim()) >= 0)
                {
                    return true;
                }
            }
            return false;
        }
        #endregion
        public bool UploadFile(byte[] fs, string fileExt)
        {
            bool ok = false;
            MemoryStream memory = null;
            FileStream file = null;
            string str = string.Empty;
            try
            {
                string path = Server.MapPath("/Static/images/Column/");
                if (!Directory.Exists(path))
                    Directory.CreateDirectory(path);
                var entity = CB.Data.ColumnService.Get(WRequest.GetQueryInt("id"));
                string filename = "";
                string mapth = "";
                if (entity != null)
                {
                    string logo =Server.MapPath(entity.Logo);
                    if (!File.Exists(logo))
                    {
                        filename = Guid.NewGuid().ToString();
                    }
                    else 
                    {
                        mapth = logo;
                    }
                }
                else
                {
                    filename = Guid.NewGuid().ToString();
                }
                memory = new MemoryStream(fs);
                if (mapth != "")
                {
                    file = new FileStream(mapth, FileMode.Create);
                    imgpath = entity.Logo;
                }
                else 
                {
                    file = new FileStream(string.Format("{0}{1}{2}", path, filename, fileExt), FileMode.Create);
                    imgpath = string.Format("{0}{1}{2}", "/Static/images/Column/", filename, fileExt);
                }
                memory.WriteTo(file);
                ok = true;
                memory.Close();
                file.Close();
            }
            catch { }
            finally
            {
                if (memory != null)
                    memory.Close();
                if (file != null)
                    file.Close();
            }
            return ok;
        }
    }
}