using InABox.Core;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

using Xamarin.Forms;
using Xamarin.Forms.Xaml;
using static Android.Content.ClipData;

namespace comal.timesheets
{
	public delegate void DigitalFormsHeaderTapped(bool Collapsed);

	[XamlCompilation(XamlCompilationOptions.Compile)]
	public partial class DigitalFormsHeader : ContentView
	{
		public event DigitalFormsHeaderTapped OnTapped;
		public bool bCollapsed { get; set; }
		public int Number { get; set; }
		public DigitalFormsHeader (bool collapsed = false)
		{
			InitializeComponent ();
            bCollapsed = collapsed;
			Number = 0;
		}

		public void SetHeaderValue(string value)
		{ 
			headerBtn.Text = value;
		}       

        private void HeaderBtn_Tapped(object sender, EventArgs e)
        {
            OnTapped?.Invoke(bCollapsed);
            AdjustHeaderArrow();
        }

        private void AdjustHeaderArrow()
		{
            if (bCollapsed)
            {
                bCollapsed = false;
                Expand();
            }
            else
            {
                bCollapsed = true;
                Collapse();
            }
        }

        private void Expand()
        {           
            collapseColumn.Width = 40;
            collapseImage.IsVisible = true;

            expandColumn.Width = 0;
            expandImage.IsVisible = false;
        }

        public void Collapse()
        {
            collapseColumn.Width = 0;
            collapseImage.IsVisible = false;

            expandColumn.Width = 40;
            expandImage.IsVisible = true;
        }

        public void SetHeaderStyle(DFLayoutHeader label)
        { 
            headerBtn.FontAttributes = label.Style.IsBold ? FontAttributes.Bold
                : label.Style.IsItalic ? FontAttributes.Italic
                : FontAttributes.None;

            headerBtn.FontSize = label.Style.FontSize > 5 && label.Style.FontSize < 37 ? label.Style.FontSize
                : Device.GetNamedSize(NamedSize.Medium, headerBtn);

            headerBtn.TextColor = label.Style.ForegroundColour;

            headerBtn.BackgroundColor = label.Style.BackgroundColour;

            headerBtn.HorizontalOptions = label.Style.HorizontalTextAlignment == DFLayoutAlignment.Start ? LayoutOptions.Start
                : label.Style.HorizontalTextAlignment == DFLayoutAlignment.Middle ? LayoutOptions.Center
                : label.Style.HorizontalTextAlignment == DFLayoutAlignment.End ? LayoutOptions.End
                : label.Style.HorizontalTextAlignment == DFLayoutAlignment.Stretch ? LayoutOptions.FillAndExpand
                : LayoutOptions.StartAndExpand;

            headerBtn.VerticalOptions = label.Style.VerticalTextAlignment == DFLayoutAlignment.Start ? LayoutOptions.Start
                : label.Style.VerticalTextAlignment == DFLayoutAlignment.Middle ? LayoutOptions.Center
                : label.Style.VerticalTextAlignment == DFLayoutAlignment.End ? LayoutOptions.End
                : label.Style.VerticalTextAlignment == DFLayoutAlignment.Stretch ? LayoutOptions.FillAndExpand
                : LayoutOptions.Center;
        }

    }
}