using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Data.OleDb;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Configuration;
using System.IO;
using System.Linq;
using static publicFun;
using DocumentFormat.OpenXml.EMMA;


public partial class admin_stock_new_reg : MyWeb.config
{
    private Model.ezEntities _db = new Model.ezEntities();
    public string _cate = "";
    public string _item = "";
    public string _kind = "";

    protected void Page_Load(object sender, EventArgs e)
    {
        CallAjax();
        if (!IsPostBack)
        {

            InitEnumsOptions<Model.stock.type>(category); //進出類型

            if (isStrNull(Request["num"]))
            {
                uptime.Text = DateTime.Now.ToString("yyyy-MM-dd");
            }
            else
            {
                int _num = Val(Request["num"]);
                var qry = _db.stocks.AsEnumerable();              
                var prod = qry.Where(q => q.num == _num).FirstOrDefault();
                if (prod != null)
                {                    

                    try 
                    {
                        foreach (Control obj in cardBodyPanel.Controls)
                        {
                       
                            if (obj is TextBox)
                            {
                                var ObjValue = prod.GetType().GetProperty(obj.ID).GetValue(prod, null);
                                if (!isStrNull(ObjValue))
                                {
                                    var textBox = (TextBox)obj;
                                    if (textBox.TextMode == TextBoxMode.Date)
                                    {
                                        textBox.Text = Convert.ToDateTime(ObjValue).ToString("yyyy-MM-dd");
                                    }
                                    else 
                                    {                                    
                                        textBox.Text = ObjValue.ToString();
                                    }
                                }
                            }
                            else if (obj is DropDownList && ((DropDownList)obj).SelectedIndex == 0)
                            {
                                var ObjValue = prod.GetType().GetProperty(obj.ID).GetValue(prod, null);
                                if (!isStrNull(ObjValue))
                                {
                                    var dropDown = (DropDownList)obj;
                                    dropDown.SelectedValue = ObjValue.ToString();
                                }
                            }

                        }
                    }
                    catch (Exception ex)
                    {
                    }
                    changeCate();
                    if (prod.kind.HasValue)
                    {
                        kind_txt.Value = prod.stock_kind.kind.ToString();
                        kind.Value = prod.kind.ToString();
                        _kind = prod.kind.ToString();                        
                    }
                    if (prod.activity_num.HasValue)
                    {
                        activity_num_txt.Value = prod.activity.subject.ToString();
                        activity_num.Value = prod.activity_num.ToString();
                    }

                    if (prod.actItem_num.HasValue)
                    {
                        actItem_num_txt.Value = prod.actItem.subject.ToString();
                        actItem_num.Value = prod.actItem_num.ToString();
                        _item = prod.actItem_num.ToString();
                    }             
                    if (prod.mem_num.HasValue)
                    {
                        mem_num_txt.Value = prod.member.u_name.ToString();
                        mem_num.Value = prod.mem_num.ToString();
                    }
                    if (prod.supplier.HasValue)
                    {
                        supplierTxt.Value = prod.supplier1.u_name.ToString();
                        supplier.Value = prod.supplier.ToString();
                    }
                    if (prod.reason.HasValue)
                    {
                        reasonTxt.Value = prod.stock_reason.kind.ToString();
                        reason.Value = prod.reason.ToString();
                    }
                    if (prod.category.HasValue) { _cate = prod.category.Value.ToString(); }
                    if (prod.final_stock.HasValue) { final_stock.Text = prod.final_stock.Value.ToString(); }
                    if (prod.price.HasValue) { price.Text = prod.price.Value.ToString(); }


                    if (prod.reg_time.HasValue)
                    {
                        timePanel1.Visible = true;
                        reg_time.Text = prod.reg_time.Value.ToString("yyyy/MM/dd HH:mm:ss");
                    }

                    edit.Visible = true;
                    goback.Visible = true;
                    add.Visible = false;

                   
                }
                else
                {
                    Response.Redirect("index.aspx");
                }

              
            }

        }
    }

    
    protected void goback_Click(object sender, EventArgs e)
    {
        Response.Redirect("index.aspx?page=" + Convert.ToString(Request["page"]));
    }

  

    #region 資料新增

    protected void add_Click(object sender, EventArgs e)
    {
        if (Page.IsValid) {
            L_msg.Text = "";

            int _fq = getFinalStock(Val(actItem_num.Value), Val(kind.Value));
            if (chk())
            {
                if (_fq >= 0)
                {

                    Model.stock stock = new Model.stock();
                    if (!isStrNull(uptime.Text)) { stock.uptime = ValDate(uptime.Text); }
                    stock.category = Val(category.SelectedValue);
                    if (!isStrNull(kind.Value)) { stock.kind = Val(kind.Value); }
                    if (!isStrNull(activity_num.Value)) { stock.activity_num = Val(activity_num.Value); }
                    if (!isStrNull(actItem_num.Value)) { stock.actItem_num = Val(actItem_num.Value); }
                    if (!isStrNull(qty.Text)) { stock.qty = Val(qty.Text); }
                    if ((Val(category.SelectedValue) ==(int)Model.stock.type.Purchase) && !isStrNull(price.Text)) { stock.price = ValFloat(price.Text); }
                    if (!isStrNull(mem_num.Value)) { stock.mem_num = Val(mem_num.Value); }
                    if ((Val(category.SelectedValue) == (int)Model.stock.type.Purchase) && !isStrNull(supplier.Value)) { stock.supplier = Val(supplier.Value); }
                    if (!isStrNull(reason.Value)) { stock.reason = Val(reason.Value); }
                    stock.debtor = debtor.Text;
                    stock.demo = demo.Text;

                    if (Val(category.SelectedValue) == 1 || Val(category.SelectedValue) == 4)
                    {
                        _fq += Val(qty.Text);
                    }
                    else if (Val(category.SelectedValue) == 2 || Val(category.SelectedValue) == 3)
                    {
                        _fq -= Val(qty.Text);
                    }
                    stock.final_stock = _fq;

                    int _rq = getFinalStock(Val(actItem_num.Value), Val(kind.Value), true);
                    if (Val(category.SelectedValue) == 3)
                    {
                        _rq += Val(qty.Text);
                    }
                    else if (Val(category.SelectedValue) == 4)
                    {
                        _rq -= Val(qty.Text);
                    }
                    stock.rent_stock = _rq;

                    stock.reg_time = DateTime.Now;

                    try
                    {
                        _db.stocks.Add(stock);
                        _db.SaveChanges();
                        Model.admin_log admin_log = new Model.admin_log();
                        admin_log.writeLog(admin.info.u_id, (int)Model.admin_log.Systems.Stock, (int)Model.admin_log.Status.Insert, uptime.Text+ actItem_num_txt.Value);

                        Response.Redirect("index.aspx");
                    }
                    catch (Exception ex)
                    {
                        L_msg.Text = ex.Message;
                        L_msg.Type = alert_type.danger;
                        //L_msg.Text = "操作失敗";
                    }

                }
                else
                {
                    L_msg.Text = "結餘量不可為負";
                    L_msg.Type = alert_type.danger;
                }


            }

        }       
    }

    #endregion

    #region 資料修改

    protected void edit_Click(object sender, EventArgs e)
    {
        if (Page.IsValid)
        {
            L_msg.Text = "";
            int _num = Val(Request["num"]);

            //if (chk(_num))
            //{


              Model.stock stock = _db.stocks.Where(q => q.num == _num).FirstOrDefault();
            //    if (stock != null)
            //    {
            //        if (!isStrNull(uptime.Text)) { stock.uptime = ValDate(uptime.Text); }
            //        stock.category = Val(category.SelectedValue);

            //        if (!isStrNull(kind.Value)) { stock.kind = Val(kind.Value); }
            //        if (!isStrNull(activity_num.Value)) { stock.activity_num = Val(activity_num.Value); }
            //        if (!isStrNull(actItem_num.Value)) { stock.actItem_num = Val(actItem_num.Value); }
            //        if (!isStrNull(qty.Text)) { stock.qty = Val(qty.Text); }
            //        if (!isStrNull(price.Text)) { stock.price = ValFloat(price.Text); }
            //        if (!isStrNull(mem_num.Value)) { stock.mem_num = Val(mem_num.Value); }
            //        stock.debtor = debtor.Text;
            //        stock.demo = demo.Text;
            //    }

            //    try
            //    {
            //        _db.SaveChanges();
            //        Response.Redirect("index.aspx?page=" + Convert.ToString(Request["page"]));
            //    }
            //    catch (Exception ex)
            //    {
            //        L_msg.Type = alert_type.danger;
            //        //L_msg.Text = ex.InnerException.Message;
            //        L_msg.Text = "操作失敗";
            //    }

            //}

            //只可修改備註
            if (stock != null)
            {
                stock.demo = demo.Text;

                try
                {
                    _db.SaveChanges();
                    Model.admin_log admin_log = new Model.admin_log();
                    admin_log.writeLog(admin.info.u_id, (int)Model.admin_log.Systems.Stock, (int)Model.admin_log.Status.Update, uptime.Text + actItem_num_txt.Value);

                    Response.Redirect("index.aspx?page=" + Convert.ToString(Request["page"]));
                }
                catch (Exception ex)
                {
                    L_msg.Type = alert_type.danger;
                    //L_msg.Text = ex.InnerException.Message;
                    L_msg.Text = "操作失敗";
                }
            }

        }
    }

    #endregion

    #region 檢查
    protected bool chk(int num = 0)
    {
        bool success = true;
        L_msg.Text = "";

        //庫存不足時，若進出類型選擇 庫存減少 或 租借，須有庫存不足的提醒

        //新增 -> 減項? ->檢查(庫存所有+本次qty)
        //修改 -> 減項? ->檢查(庫存排除本num,+本次qty)
        //有活動 ? ->加項(租借歸還) ->檢查(品項&活動相同)->租借歸還 不可大於 租借
        //有活動 ? ->減項 ->檢查(品項&活動相同)->租借 ->新增 不可大於 目前庫存 /修改 (排除本num)

        int _qty = Val(qty.Text);
        int item_id = Val(actItem_num.Value);
        int activity_id = !isStrNull(activity_num.Value) ? Val(activity_num.Value) : 0;
        int _type = Val(category.SelectedValue);


        var qry = _db.stocks.AsEnumerable();
        qry = qry.Where(o => o.actItem_num == item_id);
        qry = qry.Where(o => o.kind == Convert.ToInt32(kind.Value));

        var allAdd = qry.Where(o => (o.category == ((int)Model.stock.type.Purchase) || o.category == ((int)Model.stock.type.Return)));



        if (_type == (int)Model.stock.type.Reduce || _type == (int)Model.stock.type.Rent)
        {
            var allRed = qry.Where(o => (o.category == ((int)Model.stock.type.Reduce) || o.category == ((int)Model.stock.type.Rent)));
            if (num > 0)//修改
            {
                allAdd = allAdd.Where(o => o.num != num); //排除自己
                allRed = allRed.Where(o => o.num != num); //排除自己
            }
            int _allAddQty = Val(allAdd.Select(x => x.qty).Sum());
            int _allRedQty = Val(allRed.Select(x => x.qty).Sum());

            if (_allAddQty < _allRedQty + _qty)
            {
                success = false;
                L_msg.Text = "庫存不足";
            }
        }


        if (_type == (int)Model.stock.type.Return) //活動出租歸還沖銷
        {
            var actQry = qry;
            if (activity_id > 0) //有活動
                actQry = actQry.Where(o => o.activity_num == activity_id);
            else
                actQry = actQry.Where(o => o.activity_num == null);

            //Rent
            var actRed = actQry.Where(o => o.category == ((int)Model.stock.type.Rent));
            if (num > 0)//修改
                actQry = actRed.Where(o => o.num != num); //排除自己
            int _actRedQty = Val(actRed.Select(x => x.qty).Sum()); //本活動出租數量

            //Return
            var actAdd = actQry.Where(o => o.category == ((int)Model.stock.type.Return));
            if (num > 0)//修改
                actAdd = actAdd.Where(o => o.num != num); //排除自己
            int _actAddQty = Val(actAdd.Select(x => x.qty).Sum()); //本活動出租歸還數量


            if (_actAddQty + _qty > _actRedQty)
            {
                success = false;
                L_msg.Text = (activity_id > 0 ? "活動" : "") + "出租數量 : " + _actRedQty;
            }
        }

        return success;
    }
   
    protected int getFinalStock(int actItem , int kind,bool rent=false)
    {
        int _fq = 0;
        var qry = _db.stocks.AsEnumerable()
                       .Where(q => q.kind == kind) //同倉庫
                       .Where(q => q.actItem_num == actItem) //同品項
                       .OrderByDescending(q => q.num).FirstOrDefault();
        if (qry != null)
        {
            _fq = qry.final_stock.HasValue ? qry.final_stock.Value : 0;
            if(rent)
                _fq = qry.rent_stock.HasValue ? qry.rent_stock.Value : 0;

        }
        return _fq;
    }
   
    #endregion


    #region 類型
    protected void category_SelectedIndexChanged(object sender, EventArgs e)
    {
        changeCate();
    }
    protected void changeCate()
    {
        Panel1.Visible = category.SelectedValue == "1";
    }
    #endregion

    #region Ajax
    protected void CallAjax()
    {
        if (!isStrNull(Request["type"]))
        {
            Response.Clear();
            Response.ContentType = "application/json";
            AjaxInfo info = new AjaxInfo();
            info.isOk = false;
            info.fQty = 0;
            info.msg = "";

            if (ValString(Request["type"]) == "getFinalStock")
            {
                if (!string.IsNullOrEmpty(Request["kind"]) && !string.IsNullOrEmpty(Request["item"]))
                {
                    info.fQty = getFinalStock(Convert.ToInt32(Request["item"]), Convert.ToInt32(Request["kind"]));
                    info.isOk = true;
                }
                else
                    info.msg = "參數不正確";

            }            
            else
            {
                info.msg = "參數不正確";
            }

            Response.Write(Newtonsoft.Json.JsonConvert.SerializeObject(info));
            Response.End();
        }
    }
    public class AjaxInfo
    {
        public bool isOk { get; set; }
        public string msg { get; set; }
        public int fQty { get; set; }

    }
    #endregion
}