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

namespace BLL
{
    /// <summary>
    /// 供应商信息
    /// </summary>
    public static class SupplierService
    {
        /// <summary>
        /// 根据主键获取供应商信息
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        public static Model.Weld_Supplier GetSupplierById(string id)
        {
            return Funs.DB.Weld_Supplier.FirstOrDefault(e => e.SupplierId == id);
        }

        /// <summary>
        /// 添加供应商信息
        /// </summary>
        /// <param name="supplier"></param>
        public static void AddSupplier(Model.Weld_Supplier supplier)
        {
            Model.SGGLDB db = Funs.DB;
            Model.Weld_Supplier newSupplier = new Model.Weld_Supplier();
            newSupplier.SupplierId = supplier.SupplierId;
            newSupplier.SupplierCode = supplier.SupplierCode;
            newSupplier.SupplierName = supplier.SupplierName;
            newSupplier.ContactMan = supplier.ContactMan;
            newSupplier.ContactPhone = supplier.ContactPhone;
            db.Weld_Supplier.InsertOnSubmit(newSupplier);
            db.SubmitChanges();
        }

        /// <summary>
        /// 修改供应商信息
        /// </summary>
        /// <param name="supplier"></param>
        public static void UpdateSupplier(Model.Weld_Supplier supplier)
        {
            Model.SGGLDB db = Funs.DB;
            Model.Weld_Supplier newSupplier = db.Weld_Supplier.FirstOrDefault(e => e.SupplierId == supplier.SupplierId);
            if (newSupplier != null)
            {
                newSupplier.SupplierCode = supplier.SupplierCode;
                newSupplier.SupplierName = supplier.SupplierName;
                newSupplier.ContactMan = supplier.ContactMan;
                newSupplier.ContactPhone = supplier.ContactPhone;
                db.SubmitChanges();
            }
        }

        /// <summary>
        /// 根据主键删除供应商信息
        /// </summary>
        /// <param name="supplierId"></param>
        public static void DeleteSupplierById(string supplierId)
        {
            Model.SGGLDB db = Funs.DB;
            Model.Weld_Supplier supplier = db.Weld_Supplier.FirstOrDefault(e => e.SupplierId == supplierId);
            if (supplier != null)
            {
                db.Weld_Supplier.DeleteOnSubmit(supplier);
                db.SubmitChanges();
            }
        }

        /// <summary>
        /// 验证供应商代号是否存在
        /// </summary>
        /// <param name="code"></param>
        /// <param name="id"></param>
        /// <returns></returns>
        public static bool IsExitSupplierCode(string code, string id)
        {
            var q = Funs.DB.Weld_Supplier.FirstOrDefault(x => x.SupplierCode == code && x.SupplierId != id);
            if (q != null)
            {
                return true;
            }
            else
            {
                return false;
            }
        }


        /// <summary>
        /// 获取供应商
        /// </summary>
        /// <returns></returns>
        public static ListItem[] GetSupplierList()
        {
            var q = (from x in Funs.DB.Weld_Supplier orderby x.SupplierName select x).ToList();
            ListItem[] lis = new ListItem[q.Count()];

            for (int i = 0; i < q.Count(); i++)
            {
                lis[i] = new ListItem(q[i].SupplierName ?? "", q[i].SupplierId);
            }

            return lis;
        }

    }
}