using BLL;
using System;
using System.Linq;

namespace FineUIPro.Web.HJGL.DataImport
{
    public partial class MaterialInformationEdit : PageBase
    {
        /// <summary>
        /// 管线材料ID。
        /// </summary>
        public string PipeLineMatId
        {
            get
            {
                return (string)ViewState["PipeLineMatId"];
            }
            set
            {
                ViewState["PipeLineMatId"] = value;
            }
        }

        protected void Page_Load(object sender, EventArgs e)
        {
            this.txtHeatNo.Readonly = true;
            this.txtBatchNo.Readonly = true;

            if (!IsPostBack)
            {
                btnClose.OnClientClick = ActiveWindow.GetHideReference();
                this.PipeLineMatId = Request.Params["PipeLineMatId"];

                BindMainMaterialCodes();

                Model.HJGL_PipeLineMat pipeLineMat = PipelineMatService.GetPipeLineMat(this.PipeLineMatId);
                if (pipeLineMat == null)
                {
                    Alert.ShowInTop("未找到材料记录！", MessageBoxIcon.Warning);
                    return;
                }

                this.drpMainMaterialCode.SelectedValue = string.IsNullOrEmpty(pipeLineMat.MaterialCode)
                    ? Const._Null
                    : pipeLineMat.MaterialCode;
                this.txtMaterialCode.Text = pipeLineMat.MaterialCode2;
                BindMaterialDetails(pipeLineMat.MaterialCode, false);
            }
        }

        /// <summary>
        /// 绑定材料主编码，下拉框保留空选项以支持解除材料主数据关联。
        /// </summary>
        private void BindMainMaterialCodes()
        {
            this.drpMainMaterialCode.DataTextField = "MaterialCode";
            this.drpMainMaterialCode.DataValueField = "MaterialCode";
            this.drpMainMaterialCode.DataSource = MaterialCodeLibService.GetMaterialCodeLibList()
                .OrderBy(x => x.MaterialCode)
                .ToList();
            this.drpMainMaterialCode.DataBind();
            Funs.FineUIPleaseSelect(this.drpMainMaterialCode, "-请选择-");
        }

        /// <summary>
        /// 材料主编码变化后同步其材料编码、炉号和批号。
        /// </summary>
        protected void drpMainMaterialCode_SelectedIndexChanged(object sender, EventArgs e)
        {
            BindMaterialDetails(GetMainMaterialCode(), true);
        }

        /// <summary>
        /// 按材料主编码填充关联信息；清空选择时同步清空联动字段。
        /// </summary>
        private void BindMaterialDetails(string mainMaterialCode, bool updateMaterialCode)
        {
            Model.HJGL_MaterialCodeLib material = string.IsNullOrEmpty(mainMaterialCode)
                ? null
                : MaterialCodeLibService.GetMaterialCodeLib(mainMaterialCode);

            if (updateMaterialCode)
            {
                this.txtMaterialCode.Text = material == null ? string.Empty : material.Code;
            }
            this.txtHeatNo.Text = material == null ? string.Empty : material.HeatNo;
            this.txtBatchNo.Text = material == null ? string.Empty : material.BatchNo;
        }

        /// <summary>
        /// 将下拉框的“请选择”值转换为数据库可保存的空值。
        /// </summary>
        private string GetMainMaterialCode()
        {
            string value = this.drpMainMaterialCode.SelectedValue;
            return string.IsNullOrEmpty(value) || value == Const._Null ? null : value.Trim();
        }

        /// <summary>
        /// 保存材料主编码和材料编码。
        /// </summary>
        protected void btnSave_Click(object sender, EventArgs e)
        {
            if (string.IsNullOrEmpty(this.PipeLineMatId))
            {
                Alert.ShowInTop("未找到材料记录！", MessageBoxIcon.Warning);
                return;
            }

            string mainMaterialCode = GetMainMaterialCode();
            if (!string.IsNullOrEmpty(mainMaterialCode) && MaterialCodeLibService.GetMaterialCodeLib(mainMaterialCode) == null)
            {
                Alert.ShowInTop("所选材料主编码不存在，请重新选择！", MessageBoxIcon.Warning);
                return;
            }

            PipelineMatService.UpdateMaterialCodes(
                this.PipeLineMatId,
                mainMaterialCode,
                this.txtMaterialCode.Text.Trim());
            ShowNotify("保存成功！", MessageBoxIcon.Success);
            PageContext.RegisterStartupScript(ActiveWindow.GetHidePostBackReference());
        }
    }
}