using System;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Linq;
using System.Windows.Media;
using DTS.Common.Base;
using DTS.Common.Interface;
// ReSharper disable RedundantDefaultMemberInitializer
// ReSharper disable UnassignedGetOnlyAutoProperty

// ReSharper disable CheckNamespace

namespace DTS.Viewer.GraphList
{
    /// <summary>
    /// Main class to bind to treeview
    /// </summary>
    public class TreeViewChannels : IBaseModel
    {
        private string _name = string.Empty;
        public string Name { get => _name; set { _name = value; OnPropertyChanged("Name"); } }

        private ObservableCollection<TestGroup> _groups = new ObservableCollection<TestGroup>();
        public ObservableCollection<TestGroup> Groups { get => _groups; set { _groups = value; _groupsCount = _groups.Count; OnPropertyChanged("Groups"); } }

        private int _groupsCount = 0;
        public int GroupsCount { get => _groupsCount; set { _groupsCount = value; OnPropertyChanged("GroupsCount"); } }

        private string _path = string.Empty;
        public string Path { get => _path; set { _path = value; OnPropertyChanged("Path"); } }

        public bool IsSaved { get; }

        private bool _isExpanded = true;
        public bool IsExpanded { get => _isExpanded; set { _isExpanded = value; OnPropertyChanged("IsExpanded"); } }

        private bool _isSelected = false;
        public bool IsSelected { get => _isSelected; set { _isSelected = value; OnPropertyChanged("IsSelected"); } }

        #region PropertyChanged
        public event PropertyChangedEventHandler PropertyChanged;
        public void OnPropertyChanged(string propertyName)
        {
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }
        #endregion PropertyChanged
    }

    /// <summary>
    /// Child class for TreeViewChannels
    /// </summary>
    public class TestGroup : INotifyPropertyChanged
    {
        private string _path = string.Empty;
        public string Path { get => _path; set { _path = value; OnPropertyChanged("Path"); } }

        private string _dtsFile = string.Empty;
        public string DTSFile { get => _dtsFile; set { _dtsFile = value; OnPropertyChanged("DTSFile"); } }

        private IBaseViewModel _parent;

        /// <summary>
        /// Parent ViewModel
        /// </summary>
        public IBaseViewModel Parent { get => _parent; set { _parent = value; OnPropertyChanged("Parent"); } }

        private bool _isLocked = false;
        /// <summary>
        /// Locked Graph - call parent function to lock graph's channels
        /// </summary>
        public bool IsLocked
        {
            get => _isLocked;
            set
            {
                _isLocked = value;
                ((IGraphMainViewModel)Parent).AddLockedGroupChannels(TestName, Name, Channels.ToList(), _isLocked);
                OnPropertyChanged("IsLocked");
            }
        }

        private bool _isGraph = false;
        public bool IsGraph { get => _isGraph; set { _isGraph = value; OnPropertyChanged("IsGraph"); } }

        private bool _isExpanded = true;
        public bool IsExpanded { get => _isExpanded; set { _isExpanded = value; OnPropertyChanged("IsExpanded"); } }

        private bool _canLock = true;

        public bool CanLock
        {
            get => _canLock;
            set
            {
                _canLock = value;
                OnPropertyChanged("CanLock");
            }
        }

        private bool _isSelected = false;

        /// <summary>
        /// Selected Graph - call parent function to select graph's channels
        /// </summary>
        public bool IsSelected
        {
            get => _isSelected;
            set
            {
                if (!CanLock && value)
                {
                    return;  //ignore, don't select
                }
                if (Name.StartsWith("Test Channels") || Name.StartsWith("Calculated Channels")) return;
                var prevValue = _isSelected;
                _isSelected = value;
                if (IsSelected && IsSelected != prevValue) ((IGraphMainViewModel)Parent).AddSelectedGroupChannels(Name, Channels.ToList());
                OnPropertyChanged("IsSelected");
            }
        }

        private string _testName = string.Empty;
        public string TestName { get => _testName; set { _testName = value; OnPropertyChanged("TestName"); } }

        private string _name = string.Empty;
        public string Name { get => _name; set { _name = value; OnPropertyChanged("Name"); } }

        private string _displayName = string.Empty;
        public string DisplayName { get => _displayName; set { _displayName = value; OnPropertyChanged("DisplayName"); } }

        private ObservableCollection<ITestChannel> _channels = new ObservableCollection<ITestChannel>();
        public ObservableCollection<ITestChannel> Channels { get => _channels; set { _channels = value; _channelCount = _channels.Count; OnPropertyChanged("Channels"); } }

        private int _channelCount = 0;
        public int ChannelCount { get => _channelCount; set { _channelCount = value; OnPropertyChanged("ChannelCount"); } }

        #region PropertyChanged
        public event PropertyChangedEventHandler PropertyChanged;
        protected virtual void OnPropertyChanged(string propertyName) { PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName)); }
        #endregion PropertyChanged   
    }
}