using Microsoft.AspNetCore.Components;
using System.Drawing;
using EgwCoreLib.Razor.Data;

namespace EgwCoreLib.Razor
{
    public partial class CalWeekColumn
    {
        #region Public Enums

        public enum ColType
        {
            /// <summary>
            /// Tipo etichetta Start (SX)
            /// </summary>
            labelStart,

            /// <summary>
            /// Tipo etichetta End (DX)
            /// </summary>
            labelEnd,

            /// <summary>
            /// Colonna dati
            /// </summary>
            dataContainer
        }

        #endregion Public Enums

        #region Public Properties

        /// <summary>
        /// Lista etichette da mostrare (richiede tipo label...)
        /// </summary>
        [Parameter]
        public List<CalendarEvent> EventList { get; set; } = new List<CalendarEvent>();

        /// <summary>
        /// Modalit� di disegno
        /// </summary>
        [Parameter]
        public ColType ItemMode { get; set; } = ColType.dataContainer;

        /// <summary>
        /// Fattore di shift in X, se 0 = nessuno shift, se &gt; 0 è percentuale moltiplica il
        /// gradino calcolato
        /// Default: 100 (poi riportato a intero, quindi 100/100 = 1.0)
        /// </summary>
        [Parameter]
        public int PercX { get; set; } = 100;

        /// <summary>
        /// Fattore di shift in Y, se 0 = nessuno shift, se &gt; 0 è percentuale moltiplica il
        /// gradino calcolato
        /// Default: 90 (poi riportato a intero, quindi 90/100 = 0.9)
        /// </summary>
        [Parameter]
        public int PercY { get; set; } = 90;

        [Parameter]
        public int ValMax { get; set; } = 19;

        [Parameter]
        public int ValMin { get; set; } = 9;

        /// <summary>
        /// Dimensioni viewbox
        /// </summary>
        [Parameter]
        public Size vBox { get; set; } = new Size(1200, 3200);

        #endregion Public Properties

        #region Protected Fields

        protected string Messaggio = "";
        protected string titleDx = "";
        protected string titleSx = "";

        #endregion Protected Fields

        #region Protected Properties

        protected boxData? currData { get; set; } = null;

        protected int hFO
        {
            get => 100;// EventList.Count > 0 ? vBox.Height / EventList.Count : vBox.Height;
        }

        protected int mFO
        {
            get => vBox.Width * 4 / 100;
        }

        protected bool showDetail { get; set; } = false;

        protected int wFO
        {
            get => vBox.Width * 98 / 100;
        }

        #endregion Protected Properties

        #region Protected Methods

        protected List<boxData> BoxItems()
        {
            List<boxData> answ = new List<boxData>();
            int step = vBox.Height / (ValMax - ValMin);
            int numEv = EventList.Count;
            int evWidth = numEv > 1 ? (int)(0.5 * vBox.Width) : (int)(0.9 * vBox.Width);
            //int evWidth = numEv > 1 ? (int)(1.5 * vBox.Width / numEv) : (int)(0.9 * vBox.Width);
            int offsetX = 1;
            int offsetY = 0;// step / 2;
            if (numEv > 0)
            {
                int xStep = evWidth / (EventList.Count + 1) * PercX / 100;
                int yStep = evWidth * PercY / 100;
                //int yStep = xStep * 5;
                //int yStep = xStep * (EventList.Count + 50) / (EventList.Count + 6);
                int deltaX = 0;
                answ = EventList
                         .OrderBy(x => x.Inizio)
                         .ThenByDescending(x => x.Durata)
                         .Select(x => new boxData()
                         {
                             pX = offsetX + xStep * (deltaX),
                             pY = offsetY + yStep * (deltaX++) + (int)(x.Inizio.AddHours(-ValMin).TimeOfDay.TotalHours * step),
                             width = evWidth,
                             height = offsetY + (int)(x.Fine.Subtract(x.Inizio).TotalHours * step),
                             title = x.Type,
                             value = x.Description,
                             start = x.Inizio,
                             end = x.Fine,
                             cssClass = x.CssClass
                         })
                         .ToList();
            }
            return answ;
        }

        protected async Task DetClosed(bool closed)
        {
            if (closed)
            {
                currData = null;
                showDetail = false;
            }
            await Task.Delay(1);
        }

        /// <summary>
        /// Converte la stringa in formato markup valido
        /// </summary>
        /// <param name="rawData"></param>
        /// <returns></returns>
        protected MarkupString getMarkup(string rawData)
        {
            return new MarkupString(rawData);
        }

        /// <summary>
        /// Genera una lista di etichette con corrdinate
        /// </summary>
        /// <returns></returns>
        protected List<labelData> LabelItems()
        {
            int step = vBox.Height / numEv;// (ValMax - ValMin);
            int offset = 0;// step / 2;

            List<labelData> answ = EventList
                    .OrderBy(x => x.Inizio)
                    .Select(x => new labelData()
                    {
                        pX = vBox.Width / 10,
                        pY = offset + (int)(x.Inizio.AddHours(-ValMin).TimeOfDay.TotalHours * step),
                        value = x.Title
                    })
                    .ToList();
            return answ;
        }

        protected async void selItem(boxData item)
        {
            titleSx = $"{item.start:dddd dd}";
            titleDx = $"{item.start:MMMM yyyy}";

            currData = item;
            showDetail = true;
            await Task.Delay(1);
            await InvokeAsync(StateHasChanged);
        }

        #endregion Protected Methods

        #region Protected Classes

        protected class boxData
        {
            #region Public Properties

            public string cssClass { get; set; } = "";
            public DateTime end { get; set; } = DateTime.Today;
            public int height { get; set; } = 0;
            public int pX { get; set; } = 0;
            public int pY { get; set; } = 0;
            public DateTime start { get; set; } = DateTime.Today;
            public string title { get; set; } = "";
            public string value { get; set; } = "";
            public int width { get; set; } = 0;

            #endregion Public Properties
        }

        protected class labelData
        {
            #region Public Properties

            public int pX { get; set; } = 0;
            public int pY { get; set; } = 0;
            public string value { get; set; } = "";

            #endregion Public Properties
        }

        #endregion Protected Classes

        #region Private Properties

        private int numEv
        {
            get => EventList.Count > 0 ? EventList.Count : 1;
        }

        #endregion Private Properties
    }
}