using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Windows.Forms;

namespace UseCases
{
    public partial class editUseCase : Form
    {
        public editUseCase(List<Actor> actors)
        {
            InitializeComponent();
            Actors = actors;
            clbActors.Items.AddRange(actors.Select(actor => actor.Name).ToArray());
        }


        public UseCase UseCase { get; set; }

        public Point CasePos { get; set; }

        private List<Actor> Actors;

        private void btOk_Click(object sender, EventArgs e)
        {
            if (tbName.Text == "")
            {
                if (
                    MessageBox.Show("Are you sure you want to remove this use case?", "Are you sure?",
                        MessageBoxButtons.YesNo) != DialogResult.Yes)
                {
                    return; //if the user doesn't want to remove usecase cancel
                }
            }

            //edit usecase data
            UseCase.Name = tbName.Text;
            UseCase.Brief = tbBrief.Text;
            UseCase.Actors = new List<Actor>();
            foreach (var item in clbActors.CheckedItems)
            {
                UseCase.Actors.Add(Actors.Find(a=>a.Name == item.ToString()));
            }
            UseCase.Assumption = tbAssumptions.Text;
            UseCase.Discription = tbDescription.Text;
            UseCase.Exceptions = tbExceptions.Text;
            UseCase.Result = tbResult.Text;
            UseCase.Position = CasePos;

            //ok close dialog
            DialogResult = DialogResult.OK;
            Close();
        }

        private void btCancel_Click(object sender, EventArgs e)
        {
            //cancel result and close dialog
            DialogResult = DialogResult.Cancel;
            Close();
        }

        private void editUseCase_Load(object sender, EventArgs e)
        {
            //UseCase.Name = tbName.Text;
            //UseCase.Brief = tbBrief.Text;
            //UseCase.Actors = new List<String>();
            //foreach (var item in clbActors.CheckedItems)
            //{
            //    UseCase.Actors.Add(item.ToString());
            //}
            //UseCase.Assumption = tbAssumptions.Text;
            //UseCase.Discription = tbDescription.Text;
            //UseCase.Exceptions = tbExceptions.Text;
            //UseCase.Result = tbResult.Text;
            //UseCase.Position = CasePos;
            tbName.Text = UseCase.Name;
            tbBrief.Text = UseCase.Brief;
            foreach (var actor in UseCase.Actors)
            {
                clbActors.SetItemChecked(Actors.FindIndex(act => act == actor), true);
            }
            tbAssumptions.Text = UseCase.Assumption;
            tbDescription.Text = UseCase.Discription;
            tbExceptions.Text = UseCase.Exceptions;
            tbResult.Text = UseCase.Result;
        }

        private void btCopy_Click(object sender, EventArgs e)
        {
            var rtf = $@"{{\rtf1\ansi\deff0
\trowd
\cellx{2000}
\cellx{8000}
\intbl Name\cell
\intbl {ReplaceNewlineRtf(UseCase.Name)}\cell
\row
\trowd
\cellx{2000}
\cellx{8000}
\intbl Brief\cell
\intbl {ReplaceNewlineRtf(UseCase.Brief)}\cell
\row
\trowd
\cellx{2000}
\cellx{8000}
\intbl Actors\cell
\intbl {string.Join(", ", UseCase.Actors)}\cell
\row
\trowd
\cellx{2000}
\cellx{8000}
\intbl Assumptions\cell
\intbl {ReplaceNewlineRtf(UseCase.Assumption)}\cell
\row
\trowd
\cellx{2000}
\cellx{8000}
\intbl Description\cell
\intbl {ReplaceNewlineRtf(UseCase.Discription)}\cell
\row
\trowd
\cellx{2000}
\cellx{8000}
\intbl Exceptions\cell
\intbl {ReplaceNewlineRtf(UseCase.Exceptions)}\cell
\row
\trowd
\cellx{2000}
\cellx{8000}
\intbl Result\cell
\intbl {ReplaceNewlineRtf(UseCase.Result)}\cell
\row
}}";

            Clipboard.SetText(rtf, TextDataFormat.Rtf);
        }

        private static string ReplaceNewlineRtf(string input)
        {
            return input.Replace("\n", "\\line ");
        }
    }
}