using Contracts.BusinessLogicContracts;
using Contracts.SearchModels;
using DataModels.Enums;
using Microsoft.EntityFrameworkCore;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Windows.Forms.DataVisualization.Charting;
using static System.Runtime.InteropServices.JavaScript.JSType;

namespace WinFormsApp
{
    public partial class FormStatistics : Form
    {
        ISupplyLogic _supplyLogic;
        ISupplierLogic _supplierLogic;
        public FormStatistics(ISupplyLogic supplyLogic, ISupplierLogic supplierLogic)
        {
            InitializeComponent();
            _supplyLogic = supplyLogic;
            _supplierLogic = supplierLogic;
        }

        private void FormStatistics_Load(object sender, EventArgs e)
        {
            LoadData();
        }

        private void LoadData()
        {
            chart.Series.Clear();
            if (comboBox1.SelectedIndex == 0)
            {
                var list = _supplyLogic.ReadList(new SupplySearchModel()
                {
                    DateStart = dateTimePickerTo.Value,
                    DateEnd = dateTimePickerFrom.Value,
                });
                if (checkBoxPending.Checked)
                {
                    var date = dateTimePickerTo.Value;
                    chart.Series.Add("Pending");
                    for (int i = 0; i <= diff_month(dateTimePickerFrom.Value, dateTimePickerTo.Value); i++)
                    {
                        var count = list.Where(x => x.Date.Month == date.Month && x.Status == SupplyStatus.Pending).ToList().Count;
                        DataPoint dataPoint = new DataPoint();
                        dataPoint.XValue = i;
                        dataPoint.IsVisibleInLegend = false;
                        dataPoint.Label = $"{date.Year}.{date.Month}";
                        dataPoint.SetValueY(count);
                        chart.Series["Pending"].Points.Add(dataPoint);
                        date = date.AddMonths(1);
                    }
                }
                if (checkBoxArriving.Checked)
                {
                    var date = dateTimePickerTo.Value;
                    chart.Series.Add("Arriving");
                    for (int i = 0; i <= diff_month(dateTimePickerFrom.Value, dateTimePickerTo.Value); i++)
                    {
                        var count = list.Where(x => x.Date.Month == date.Month && x.Status == SupplyStatus.Arriving).ToList().Count;
                        DataPoint dataPoint = new DataPoint();
                        dataPoint.XValue = i;
                        dataPoint.IsVisibleInLegend = false;
                        dataPoint.Label = $"{date.Year}.{date.Month}";
                        dataPoint.SetValueY(count);
                        chart.Series["Arriving"].Points.Add(dataPoint);
                        date = date.AddMonths(1);
                    }
                }
                if (checkBoxCompleted.Checked)
                {
                    var date = dateTimePickerTo.Value;
                    chart.Series.Add("Completed");
                    for (int i = 0; i <= diff_month(dateTimePickerFrom.Value, dateTimePickerTo.Value); i++)
                    {
                        var count = list.Where(x => x.Date.Month == date.Month && x.Status == SupplyStatus.Completed).ToList().Count;
                        DataPoint dataPoint = new DataPoint();
                        dataPoint.XValue = i;
                        dataPoint.IsVisibleInLegend = false;
                        dataPoint.Label = $"{date.Year}.{date.Month}";
                        dataPoint.SetValueY(count);
                        chart.Series["Completed"].Points.Add(dataPoint);
                        date = date.AddMonths(1);
                    }
                }
            }
            if (comboBox1.SelectedIndex == 1)
            {
                var supplylist = _supplyLogic.ReadList(new SupplySearchModel()
                {
                    DateStart = dateTimePickerTo.Value,
                    DateEnd = dateTimePickerFrom.Value,
                });
                var supplierlist = _supplierLogic.ReadList(null);
                foreach (var supplier in supplierlist)
                {
                    var date = dateTimePickerTo.Value;
                    chart.Series.Add(supplier.Name);
                    for (int i = 0; i <= diff_month(dateTimePickerFrom.Value, dateTimePickerTo.Value); i++)
                    {
                        var count = supplylist.Where(x => x.Date.Month == date.Month && x.Status == SupplyStatus.Completed && x.SupplierId == supplier.Id).ToList().Count;
                        DataPoint dataPoint = new DataPoint();
                        dataPoint.XValue = i;
                        dataPoint.IsVisibleInLegend = false;
                        dataPoint.Label = $"{supplier.Name}";
                        dataPoint.SetValueY(count);
                        chart.Series[supplier.Name].Points.Add(dataPoint);
                        date = date.AddMonths(1);
                    }
                }
            }

        }

        private void chart_Click(object sender, EventArgs e)
        {

        }

        private void dateTimePickerFrom_ValueChanged(object sender, EventArgs e)
        {
            LoadData();
        }

        private void dateTimePickerTo_ValueChanged(object sender, EventArgs e)
        {
            LoadData();
        }

        private int diff_month(DateTime d1, DateTime d2)
        {
            return (d1.Year - d2.Year) * 12 + d1.Month - d2.Month;
        }

        private void checkBoxPending_CheckedChanged(object sender, EventArgs e)
        {
            LoadData();
        }

        private void checkBoxArriving_CheckedChanged(object sender, EventArgs e)
        {
            LoadData();
        }

        private void checkBoxCompleted_CheckedChanged(object sender, EventArgs e)
        {
            LoadData();
        }

        private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (comboBox1.SelectedIndex != 0)
            {
                checkBoxArriving.Visible = false;
                checkBoxCompleted.Visible = false;
                checkBoxPending.Visible = false;
            }
            else
            {
                checkBoxArriving.Visible = true;
                checkBoxCompleted.Visible = true;
                checkBoxPending.Visible = true;
            }
            LoadData();
        }
    }
}