using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;

using Demos.Warden.TagTextEditing;
using Demos.Warden.TagTextEditing.SpecificTypeTagElements;

namespace Demos.Warden.UserInterface.MainWindow.GeneratedStudyDocuments
{
    public partial class TagElementSelectionWindowGender : Window, DialogHandling.IWindowModel<GenderInflictedTagElement[]>
    {
        public bool IsSuccess { get; set; }
        public GenderInflictedTagElement[] InputValues { get; set; }
        public DialogHandling.WindowModelResult<GenderInflictedTagElement[]> Result { get; set; }
        private GenderInflictedTagElement _selectedItem = null;

        public TagElementSelectionWindowGender()
        {
            InitializeComponent();
        }

        public void Initialize()
        {
            this.addSelection();
        }

        private void actions_Click(object sender, RoutedEventArgs args)
        {
            Button button = (Button)sender;

            switch(button.Name)
            {
                case "btn_infliction_add": this.inflictionActionInsert(); break;
                case "btn_infliction_update": this.inflictionActionUpdate(); break;
                case "btn_infliction_delete": this.inflictionActionDelete(); break;
            }
        }

        private void inflictionActionInsert()
        {
            if (this.txtbx_TagTitle.Text == "" || this.txtbx_MaleForm.Text == "" || this.txtbx_FemaleForm.Text == "")
            {
                MessageBox.Show("Nelze přidat prvek, protože nejsou vyplněny všechny potřebné hodnoty.");
                return;
            }
            GenderInflictedTagElement el = new GenderInflictedTagElement();
            el.InitializeState(this.txtbx_TagTitle.Text, this.txtbx_MaleForm.Text, this.txtbx_FemaleForm.Text);
            this.lstvw_selection.Items.Add(new KeyValuePair<string, GenderInflictedTagElement>(el.TagTitle, el));
        }

        private void inflictionActionUpdate()
        {
            GenderInflictedTagElement selectedTag = getCurrentlySelectedTag();

            if (selectedTag == null) { return; }

            if (this.txtbx_TagTitle.Text == "" || this.txtbx_MaleForm.Text == "" || this.txtbx_FemaleForm.Text == "")
            {
                MessageBox.Show("Nejsou vyplněny všechny potřebné hodnoty!");
                return;
            }

            selectedTag.TagTitle = this.txtbx_TagTitle.Text;
            selectedTag.MaleForm = this.txtbx_MaleForm.Text;
            selectedTag.FemaleForm = this.txtbx_FemaleForm.Text;
        }

        private void inflictionActionDelete()
        {
            if (this.lstvw_selection.SelectedItem != null)
            {
                this.lstvw_selection.Items.Remove(this.lstvw_selection.SelectedItem);
            }
        }


        private void addSelection()
        {
            this.lstvw_selection.SelectionMode = SelectionMode.Single;

            List<KeyValuePair<string, GenderInflictedTagElement>> items = new List<KeyValuePair<string, GenderInflictedTagElement>>();
            if (this.InputValues != null)
            {
                foreach (GenderInflictedTagElement tag in this.InputValues)
                {
                    this.lstvw_selection.Items.Add(new KeyValuePair<string, GenderInflictedTagElement>(tag.TagTitle, tag));
                }
            }

            this.lstvw_selection.DisplayMemberPath = "Key";
        }

        private void OnSelectionChanged(object sender, SelectionChangedEventArgs args)
        {
            if (args.AddedItems == null || args.AddedItems.Count == 0) { return; }

            KeyValuePair<string, GenderInflictedTagElement> selectedItem = (KeyValuePair<string, GenderInflictedTagElement>)args.AddedItems[0];
            this._selectedItem = selectedItem.Value;

            this.txtbx_TagTitle.Text = this._selectedItem.TagTitle;
            this.txtbx_MaleForm.Text = this._selectedItem.MaleForm;
            this.txtbx_FemaleForm.Text = this._selectedItem.FemaleForm;
        }

        private void closingButtons_Click(object sender, RoutedEventArgs args)
        {
            Button btn = (Button)sender;
            switch (btn.Name)
            {
                case "btn_Cancel": this._selectedItem = null; this.Conclude(); break;
                case "btn_OK": this.Conclude(); break;
            }
        }

        private void Conclude()
        {
            this.trySaveCustomGenderTags();

            if (this._selectedItem == null)
            {
                this.IsSuccess = false;
                this.Result = null;
            }
            else
            {
                DialogHandling.WindowModelResult<GenderInflictedTagElement[]> res = new DialogHandling.WindowModelResult<GenderInflictedTagElement[]>();
                res.ReturnObject = new GenderInflictedTagElement[] { this._selectedItem };
                this.IsSuccess = true;
                this.Result = res;
            }

            this.Close();
        }

        private void trySaveCustomGenderTags()
        {
            try
            {
                List<GenderInflictedTagElement> tags = new List<GenderInflictedTagElement>();
                foreach (object item in this.lstvw_selection.Items)
                {
                    if (item is KeyValuePair<string, GenderInflictedTagElement> && ((KeyValuePair<string, GenderInflictedTagElement>)item).Value is GenderInflictedTagElement)
                    {
                        KeyValuePair<string, GenderInflictedTagElement> curItem = (KeyValuePair<string, GenderInflictedTagElement>)item;
                        GenderInflictedTagElement genTag = (GenderInflictedTagElement)curItem.Value;
                        tags.Add(genTag);
                    }
                }

                FlowDocumentTagManager man = new FlowDocumentTagManager();
                man.saveGenderInflectionTagData(tags.ToArray());
            }
            catch(Exception ex)
            {
                MessageBox.Show("Proběhl neúspěšný pokus o uložení uživatelem nadefinovanch položek.");
            }
        }

        private GenderInflictedTagElement getCurrentlySelectedTag()
        {
            GenderInflictedTagElement tag = null;

            try
            {
                KeyValuePair<string, GenderInflictedTagElement> selectedItem = (KeyValuePair<string, GenderInflictedTagElement>)this.lstvw_selection.SelectedItem;
                tag = selectedItem.Value;
            }
            catch (Exception ex) { }

            return tag;
        }
    }
}