/* FirstRunViewModel.cs
 * part of zaaReloaded2
 * 
 * Copyright 2015-2017 Daniel Kraus
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Bovender.Mvvm;
using Bovender.Mvvm.ViewModels;

namespace zaaReloaded2.ViewModels
{
    /// <summary>
    /// View model for the first-run wizard
    /// </summary>
    class FirstRunViewModel : ViewModelBase
    {
        #region Static method

        /// <summary>
        /// If the first-run wizard hasn't been shown to this user
        /// yet, creates a new instance of FirstRunViewModel,
        /// injects it into the view T and shows the view.
        /// </summary>
        /// <typeparam name="T">Window to inject the view model into.</typeparam>
        public static void InjectIntoIfNeeded<T>()
            where T: System.Windows.Window, new()
        {
            if (UserSettings.Default.FirstRun)
            {
                FirstRunViewModel vm = new FirstRunViewModel();
                vm.InjectInto<T>().Show();
            }
        }

        #endregion

        #region Commands

        public DelegatingCommand SelectDoctorsModeCommand
        {
            get
            {
                if (_selectDoctorsModeCommand == null)
                {
                    _selectDoctorsModeCommand = new DelegatingCommand(
                        param => DoSelectDoctorsMode());
                }
                return _selectDoctorsModeCommand;
            }
        }

        public DelegatingCommand SelectTypistsModeCommand
        {
            get
            {
                if (_selectTypistsModeCommand == null)
                {
                    _selectTypistsModeCommand = new DelegatingCommand(
                        param => DoSelectTypistsMode());
                }
                return _selectTypistsModeCommand;
            }
        }
        
        #endregion

        #region Constructor

        /// <summary>
        /// Private constructor to enforce using the static
        /// </summary>
        private FirstRunViewModel() : base() { }

        #endregion

        #region Private methods

        void DoSelectDoctorsMode()
        {
            // Properties will be saved by the DoCloseView override.
            UserSettings.Default.SuppressItemCommentInteraction = false;
            CloseViewCommand.Execute(null);
        }

        void DoSelectTypistsMode()
        {
            // Properties will be saved by the DoCloseView override.
            UserSettings.Default.SuppressItemCommentInteraction = true;
            CloseViewCommand.Execute(null);
        }

        #endregion

        #region Implementation of ViewModelBase

        public override object RevealModelObject()
        {
            throw new NotImplementedException();
        }

        #endregion

        #region Fields

        DelegatingCommand _selectDoctorsModeCommand;
        DelegatingCommand _selectTypistsModeCommand;

        #endregion
    }
}