using Elwig.Helpers;
using Elwig.Models;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using Xceed.Wpf.Toolkit.Primitives;

namespace Elwig.Windows {
    public partial class DeliveryAdminWindow : AdministrationWindow {

        private bool IsUpdatingGradation = false;

        public DeliveryAdminWindow() {
            InitializeComponent();
            RequiredInputs = new Control[] {
                MgNrInput, MemberInput,
                SortIdInput, WineVarietyInput,
                GradationOeInput, GradationKmwInput,
                WineOriginInput
            };
            ExemptInputs = new Control[] {
                MgNrInput, MemberInput,
                MemberAddressField
            };
        }

        private void Window_Loaded(object sender, RoutedEventArgs evt) {
            MemberInput.ItemsSource = Context.Members.OrderBy(m => m.FamilyName).ThenBy(m => m.GivenName).ToList();
            WineVarietyInput.ItemsSource = Context.WineVarieties.OrderBy(v => v.Name).ToList();
            AttributesInput.ItemsSource = Context.WineAttributes.OrderBy(a => a.Name).ToList();
            ModifiersInput.ItemsSource = Context.Modifiers.Where(m => m.Season.Year == 2022).OrderBy(m => m.Name).ToList();
            WineOriginInput.ItemsSource = Context.WineOrigins.ToList().OrderByDescending(o => o.SortKey).ThenBy(o => o.HkId);
        }

        protected override void UpdateButtons() {

        }

        private void MgNrInput_TextChanged(object sender, TextChangedEventArgs evt) {
            var valid = InputTextChanged((TextBox)sender, Validator.CheckMgNr);
            MemberInput.SelectedItem = valid ? Context.Members.Find(int.Parse(MgNrInput.Text)) : null;
        }

        private void MgNrInput_LostFocus(object sender, RoutedEventArgs evt) {
            var valid = InputLostFocus((TextBox)sender, Validator.CheckMgNr);
            MemberInput.SelectedItem = valid ? Context.Members.Find(int.Parse(MgNrInput.Text)) : null;
        }

        private void MemberInput_SelectionChanged(object sender, SelectionChangedEventArgs evt) {
            var m = MemberInput.SelectedItem as Member;
            if (m != null) MgNrInput.Text = m.MgNr.ToString();
            MemberAddressField.Text = m?.FullAddress;
        }

        private void UpdateWineVariety(bool valid) {
            if (valid) {
                var text = SortIdInput.Text;
                WineVarietyInput.SelectedItem = Context.WineVarieties.Find(text[0..2]);
                if (text.Length >= 3) {
                    AttributesInput.UnSelectAll();
                    AttributesInput.SelectedItems.Add(Context.WineAttributes.Find(text[2..]));
                    SortIdInput.Text = text[0..2];
                }
            } else {
                WineVarietyInput.SelectedItem = null;
                AttributesInput.UnSelectAll();
            }
        }

        private void SortIdInput_TextChanged(object sender, TextChangedEventArgs evt) {
            UpdateWineVariety(InputTextChanged((TextBox)sender, Validator.CheckSortId));
        }

        private void SortIdInput_LostFocus(object sender, RoutedEventArgs evt) {
            UpdateWineVariety(InputLostFocus((TextBox)sender, Validator.CheckSortId));
        }

        private void WineVarietyInput_SelectionChanged(object sender, SelectionChangedEventArgs evt) {
            var s = WineVarietyInput.SelectedItem as WineVar;
            if (s != null) SortIdInput.Text = s.SortId;
        }

        private void UpdateGradationKmw() {
            IsUpdatingGradation = true;
            var caret = GradationKmwInput.CaretIndex;
            GradationKmwInput.Text = $"{Utils.OeToKmw(double.Parse(GradationOeInput.Text)):#.0}";
            GradationKmwInput.CaretIndex = caret;
            IsUpdatingGradation = false;
        }

        private void UpdateGradationOe() {
            IsUpdatingGradation = true;
            var caret = GradationOeInput.CaretIndex;
            GradationOeInput.Text = $"{Utils.KmwToOe(double.Parse(GradationKmwInput.Text)):#}";
            GradationOeInput.CaretIndex = caret;
            IsUpdatingGradation = false;
        }

        private void GradationOeInput_TextChanged(object sender, TextChangedEventArgs evt) {
            var valid = InputTextChanged((TextBox)sender, Validator.CheckGradatoinOe);
            if (valid && !IsUpdatingGradation) UpdateGradationKmw();
        }

        private void GradationOeInput_LostFocus(object sender, RoutedEventArgs evt) {
            InputLostFocus((TextBox)sender, Validator.CheckGradatoinOe);
        }

        private void GradationKmwInput_TextChanged(object sender, TextChangedEventArgs evt) {
            var valid = InputTextChanged((TextBox)sender, Validator.CheckGradationKmw);
            if (valid && !IsUpdatingGradation) UpdateGradationOe();
        }

        private void GradationKmwInput_LostFocus(object sender, RoutedEventArgs evt) {
            InputLostFocus((TextBox)sender, Validator.CheckGradationKmw);
        }

        private void AttributesInput_SelectionChanged(object sender, ItemSelectionChangedEventArgs evt) {

        }

        private void ModifiersInput_SelectionChanged(object sender, ItemSelectionChangedEventArgs evt) {

        }
    }
}