using Model;
using System;
using System.Linq;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class admin_region_bed_bedstatus_create : MyWeb.config
{
    private Model.ezEntities _db = new Model.ezEntities();

    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            var code = Request.QueryString["code"];
            if (!string.IsNullOrEmpty(code))
            {
                LoadData(code);
                L_title.Text = "編輯區域類型";
            }

            var categoryList = RegionRoomBedStatus.GetCategoryList();
            TB_Category.DataSource = categoryList;
            TB_Category.DataTextField = "Text";   // 顯示文字
            TB_Category.DataValueField = "Value"; // 選項值
            TB_Category.DataBind();
            TB_Category.Items.Insert(0, new ListItem("--請選擇分類--", ""));
        }
    }

    private void LoadData(string code)
    {
        var rt = _db.RegionRoomBedStatus.FirstOrDefault(r => r.Code == code);
        if (rt == null)
        {
            L_msg.Text = "<div class='alert alert-danger'>找不到資料</div>";
            BTN_Save.Enabled = false;
            return;
        }

        HF_Code.Value = rt.Code; // ✅ 以 Code 為唯一識別
        TB_Name.Text = rt.Name;
        TB_Code.Text = rt.Code;
        TB_Category.SelectedValue = rt.Category?.ToString();
        Description.Text = rt.Description;
    }

    protected void BTN_Save_Click(object sender, EventArgs e)
    {
        try
        {
            RegionRoomBedStatus rt;
            var code = HF_Code.Value; // ✅ 用隱藏欄位的 Code 判斷

            if (!string.IsNullOrEmpty(code))
            {
                // 更新
                rt = _db.RegionRoomBedStatus.FirstOrDefault(r => r.Code == code);
                if (rt == null)
                {
                    L_msg.Text = "<div class='alert alert-danger'>資料不存在</div>";
                    return;
                }
            }
            else
            {
                // 新增
                rt = new RegionRoomBedStatus();
                rt.Code = TB_Code.Text.Trim(); // ✅ 以 Code 當主鍵
                _db.RegionRoomBedStatus.Add(rt);
            }

            rt.Name = TB_Name.Text.Trim();
            if (string.IsNullOrEmpty(rt.Name))
            {
                L_msg.Text = "<div class='alert alert-danger'>名稱不能為空</div>";
                return;
            }

            rt.Description = Description.Text.Trim();

            if (int.TryParse(TB_Category.SelectedValue, out int category))
            {
                rt.Category = category;
            }
            else
            {
                rt.Category = null;
            }

            _db.SaveChanges();

            L_msg.Text = "<div class='alert alert-success'>儲存成功</div>";

            // ✅ 如果是新增，更新隱藏欄位並切換標題
            if (string.IsNullOrEmpty(HF_Code.Value))
            {
                HF_Code.Value = rt.Code;
                L_title.Text = "編輯區域類型";
            }

            Response.Redirect("index.aspx");
        }
        catch (Exception ex)
        {
            L_msg.Text = $"<div class='alert alert-danger'>錯誤：{ex.Message}</div>";
        }
    }
}