using Microsoft.AspNetCore.Components;
using MP.Data;
using MP.Stats.Data;
using System.Collections.Generic;
using System.Linq;

namespace MP.Stats.Components
{
    public partial class ChartScarti
    {
        #region Private Properties

        private List<double> DatiPareto
        {
            get => ParetoData.Select(x => x.value).ToList();
        }

        private List<chartJsData.chartJsTSerie> DatiPlot
        {
            get => TSData;
        }

        private List<string> LabelPareto
        {
            get => ParetoData.Select(x => x.label).ToList();
        }

        private List<string> LabelPlot
        {
            get => TSData.Select(r => $"{r.x:yyyy-MM-dd}").ToList();
        }

        #endregion Private Properties

        #region Protected Properties

        protected SelectData _currFilter { get; set; } = new SelectData();

        protected List<MP.Data.DbModels.ResScarti> _rawData { get; set; } = new List<MP.Data.DbModels.ResScarti>();

        /// <summary>
        /// Genera colori sfondo 33% rosso / arancione / giallo
        /// </summary>
        /// <returns></returns>
        protected List<string> bgColors
        {
            get => semaphColors(ParetoData.Count, "0.3");
        }

        /// <summary>
        /// Genera colori sfondo 33% rosso / arancione / giallo
        /// </summary>
        /// <returns></returns>
        protected List<string> lineColor
        {
            get => solidColors("1");
        }

        /// <summary>
        /// Genera colori linea 33% rosso / arancione / giallo
        /// </summary>
        /// <returns></returns>
        protected List<string> lineColors
        {
            get => semaphColors(ParetoData.Count, "1");
        }

        [Inject]
        protected MessageService MessageService { get; set; }

        protected List<ChartKV> ParetoData { get; set; } = new List<ChartKV>();

        [Inject]
        protected MpStatsService StatService { get; set; }

        protected List<chartJsData.chartJsTSerie> TSData { get; set; } = new List<chartJsData.chartJsTSerie>();

        #endregion Protected Properties

        #region Public Properties

        [Parameter]
        public List<MP.Data.DbModels.ResScarti> RawData
        {
            get => _rawData;
            set
            {
                // salvo valori
                _rawData = value;
                if (value != null)
                {
                    // ricalcolo charting data
                    recalcData();
                }
            }
        }

        #endregion Public Properties

        #region Private Methods

        private void recalcData()
        {
            if (RawData != null)
            {
                ParetoData = RawData
                           .GroupBy(x => x.Causale)
                           .Select(y => new ChartKV() { label = y.First().Descrizione, value = y.Sum(c => c.Qta) })
                           .OrderByDescending(x => x.value)
                           .ToList();

                TSData = RawData
                           .GroupBy(x => x.DataOraRif.Date)
                           .Select(r => new chartJsData.chartJsTSerie() { x = r.First().DataOraRif.Date, y = r.Sum(c => c.Qta) })
                           .OrderBy(o => o.x)
                           .ToList();
            }
        }

        #endregion Private Methods

        #region Protected Methods

        /// <summary>
        /// Genera colori sfondo 33% rosso / arancione / giallo
        /// </summary>
        /// <param name="numRecords"></param>
        /// <param name="alpha"></param>
        /// <returns></returns>
        protected List<string> semaphColors(int numRecords, string alpha)
        {
            List<string> answ = new List<string>();
            int numStep = 5;
            // ciclo x numStep-1
            for (int j = 0; j < numStep; j++)
            {
                for (int i = 0; i < numRecords / numStep; i++)
                {
                    answ.Add($"rgba(255, {82 + (206 - 82) * j / numStep}, {132 + (74 - 132) * j / numStep}, {alpha}");
                }
            }
            // chiude
            while (answ.Count < numRecords)
            {
                answ.Add($"rgba(255, 206, 86, {alpha})");
            }

            return answ;
        }

        /// <summary>
        /// Genera colori bordo 33% rosso / arancione / giallo
        /// </summary>
        /// <param name="alpha"></param>
        /// <returns></returns>
        protected List<string> solidColors(string alpha)
        {
            List<string> answ = new List<string>();
            answ.Add($"rgba(54, 162, 235, {alpha})");
            return answ;
        }

        #endregion Protected Methods
    }
}