using Elwig.Documents;
using Elwig.Helpers;
using Elwig.Helpers.Billing;
using Microsoft.EntityFrameworkCore;
using System.Linq;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Input;

namespace Elwig.Windows {
    public partial class SeasonFinishWindow : ContextWindow {
        public SeasonFinishWindow() {
            InitializeComponent();
        }

        private void Window_Loaded(object sender, RoutedEventArgs evt) {
            SeasonInput.Value = Utils.CurrentLastSeason;
        }

        protected override async Task OnRenewContext() {

        }

        private async void SeasonInput_ValueChanged(object sender, RoutedEventArgs evt) {
            var s = await Context.Seasons.FindAsync(SeasonInput.Value);
            var valid = (s != null);
            CalculateBinsButton.IsEnabled = valid;
            DeliveryConfirmationButton.IsEnabled = valid;
            OverUnderDeliveryButton.IsEnabled = valid;
        }

        private async void CalculateBinsButton_Click(object sender, RoutedEventArgs evt) {
            if (SeasonInput.Value is not int year)
                return;
            Mouse.OverrideCursor = Cursors.AppStarting;
            var b = new Billing(year);
            await b.FinishSeason();
            await b.CalculateBins();
            Mouse.OverrideCursor = null;
        }

        private async void DeliveryConfirmationButton_Click(object sender, RoutedEventArgs evt) {
            if (SeasonInput.Value is not int year)
                return;
            var res = MessageBox.Show(
                $"Sollen wirklich alle Bestätigungen gedruckt werden?", "Ausdruck Bestätigen",
                MessageBoxButton.YesNo, MessageBoxImage.Warning, MessageBoxResult.No);
            if (res != MessageBoxResult.Yes)
                return;
            Mouse.OverrideCursor = Cursors.AppStarting;
            using var doc = await Document.Merge(Context.Members.FromSqlRaw($"""
                SELECT m.*
                FROM member m
                    JOIN delivery d ON d.mgnr = m.mgnr
                WHERE m.active AND d.year = {year}
                GROUP BY m.mgnr
                ORDER BY m.mgnr
                """)
                .ToList()
                .Select(m => new DeliveryConfirmation(Context, year, m)));
            await doc.Generate();
            Mouse.OverrideCursor = null;
            if (App.Config.Debug) {
                doc.Show();
            } else {
                await doc.Print();
            }
        }

        private void OverUnderDeliveryButton_Click(object sender, RoutedEventArgs evt) {
        }

        private void PaymentButton_Click(object sender, RoutedEventArgs evt) {
            var w = new ChartWindow();
            w.Show();
        }
    }
}