using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Drawing;
using Tanshu.Accounts.Contracts;
using Tanshu.Accounts.Entities;
using System.Collections;
using Tanshu.Accounts.Repository;
using Tanshu.Common.KeyboardControl;

namespace Tanshu.Accounts.Helpers
{
    public delegate void ButtonClickDelegate(object sender, EventArgs e);

    public static class ControlFactory
    {
        public static void GenerateTables(ref FlowLayoutPanel panel, Point size, int start, IList<FoodTable> inList, ButtonClickDelegate bcDelegate)
        {
            IList<FoodTable> list = new List<FoodTable>();
            int pageLength, stop;
            PageSetup(ref panel, start, inList as IList, out pageLength, out stop);
            if (start != 0)
                list.Add(new FoodTable() { FoodTableID = start - pageLength, Name = "Previous" });
            for (int i = start; i < stop; i++)
            {
                list.Add(inList[i]);
            }
            if (stop < inList.Count)
                list.Add(new FoodTable() { FoodTableID = stop, Name = "Next" });

            for (int i = 0; i < list.Count; i++)
            {
                var item = list[i];
                var status = item.Status;
                var control = GetButton(string.Format("g{0}", i), item.Name, size.X, size.Y, item, bcDelegate);
                if (status == "printed")
                    control.BackColor = Color.Green;
                else if (status == "running")
                    control.BackColor = Color.Red;
                panel.Controls.Add(control);
            }
        }
        public static void GenerateProducts(ref FlowLayoutPanel panel, Point size, int start, IList<Product> inList, ButtonClickDelegate bcDelegate)
        {
            IList<Product> list = new List<Product>();
            int pageLength, stop;
            PageSetup(ref panel, start, inList as IList, out pageLength, out stop);
            if (start != 0)
                list.Add(new Product() { ProductID = start - pageLength, Name = "Previous" });
            for (int i = start; i < stop; i++)
            {
                list.Add(inList[i]);
            }
            if (stop < inList.Count)
                list.Add(new Product() { ProductID = stop, Name = "Next" });

            for (var i = 0; i < list.Count; i++)
            {
                var item = list[i];
                var control = GetButton(string.Format("p{0}", i), item.Units == string.Empty ? item.Name : string.Format("{0} ({1})", item.Name, item.Units), size.X, size.Y, item, bcDelegate);
                if (item.SalePrice == 0)
                    control.BackColor = Color.Yellow;
                panel.Controls.Add(control);
            }
        }
        // For Discount Form
        public static void GenerateGroups(ref FlowLayoutPanel panel, Point size, IList<string> list, ButtonClickDelegate bcDelegate)
        {
            panel.Controls.Clear();
            for (int i = 0; i < list.Count; i++)
            {
                var item = list[i];
                var control = GetUnselectableCheckbox(i.ToString(), item, size.X, size.Y, item, bcDelegate);
                panel.Controls.Add(control);
            }
        }
        // For Main Form
        public static void GenerateGroups(ref FlowLayoutPanel panel, Point size, int start, IList<ProductGroup> inList, ButtonClickDelegate bcDelegate)
        {
            IList<ProductGroup> list = new List<ProductGroup>();
            int pageLength, stop;
            PageSetup(ref panel, start, inList as IList, out pageLength, out stop);
            if (start != 0)
                list.Add(new ProductGroup() { ProductGroupID = start - pageLength, Name = "Previous" });
            for (int i = start; i < stop; i++)
            {
                list.Add(inList[i]);
            }
            if (stop < inList.Count)
                list.Add(new ProductGroup() { ProductGroupID = stop, Name = "Next" });

            for (int i = 0; i < list.Count; i++)
            {
                var item = list[i];
                var control = GetButton(string.Format("g{0}", i), item.Name, size.X, size.Y, item, bcDelegate);
                panel.Controls.Add(control);
            }
        }
        public static void GenerateModifiers(ref FlowLayoutPanel panel, ref IList<CheckBox> controlList, IList<Modifier> selection, Point size, int count, IList<Modifier> list, ButtonClickDelegate bcDelegate)
        {
            if (controlList.Count != 0)
            {
                for (int i = controlList.Count - 1; i >= 0; i--)
                {
                    controlList[i].Dispose();
                }
                controlList = new List<CheckBox>();
            }
            if (count > list.Count)
                count = list.Count;
            for (int i = 0; i < count; i++)
            {
                var item = list[i];
                var control = GetCheckbox(i.ToString(), item.Name, size.X, size.Y, item, bcDelegate);
                control.Checked = selection.Contains(item);
                panel.Controls.Add(control);
                controlList.Add(control);
            }
        }

        private static void PageSetup(ref FlowLayoutPanel panel, int start, IList inList, out int pageLength, out int stop)
        {
            panel.Controls.Clear();
            pageLength = (panel.Height / (3 + 75 + 3));
            pageLength *= (panel.Width / (3 + 75 + 3));
            pageLength -= 2;
            if (inList.Count <= pageLength)
                start = 0;
            if (start == 0)
                pageLength += 1;
            stop = start + pageLength;
            if (stop > inList.Count)
                stop = inList.Count;

        }
        private static Button GetButton(string name, string text, int width, int height, object tag, ButtonClickDelegate bcDelegate)
        {
            Button control = new Button()
            {
                Name = name,
                Text = text,
                Width = width,
                Height = height,
                Tag = tag,
            };
            if (bcDelegate != null)
                control.Click += new EventHandler(bcDelegate);
            return control;
        }
        private static UnselectableCheckbox GetUnselectableCheckbox(string name, string text, int width, int height, object tag, ButtonClickDelegate bcDelegate)
        {
            UnselectableCheckbox control = new UnselectableCheckbox()
            {
                Name = name,
                Text = text,
                Width = width,
                Height = height,
                Tag = tag,
                Appearance = Appearance.Button,

            };
            if (bcDelegate != null)
                control.Click += new EventHandler(bcDelegate);
            return control;
        }
        private static CheckBox GetCheckbox(string name, string text, int width, int height, object tag, ButtonClickDelegate bcDelegate)
        {
            CheckBox control = new CheckBox()
            {
                Name = name,
                Text = text,
                Width = width,
                Height = height,
                Tag = tag,
                Appearance = Appearance.Button,

            };
            if (bcDelegate != null)
                control.Click += new EventHandler(bcDelegate);
            return control;
        }
    }
}