using System.Collections.ObjectModel;
using System.ComponentModel;
using Newtonsoft.Json;

namespace S7Explorer.Models
{
    public enum S7ObjectType
    {
        Project,
        Device,
        Folder,
        DataBlock,
        FunctionBlock,
        Function,
        Organization,
        Symbol
    }

    public class S7Object : INotifyPropertyChanged
    {
        private string _name;
        private string _description;
        private bool _isExpanded;

        public string Id { get; set; }
        public string Number { get; set; }

        [DisplayName("Nombre")]
        public string Name
        {
            get => _name;
            set
            {
                if (_name != value)
                {
                    _name = value;
                    OnPropertyChanged(nameof(Name));
                }
            }
        }

        [DisplayName("Descripción")]
        public string Description
        {
            get => _description;
            set
            {
                if (_description != value)
                {
                    _description = value;
                    OnPropertyChanged(nameof(Description));
                }
            }
        }

        [Browsable(false)]
        public S7ObjectType ObjectType { get; set; }

        [Browsable(false)]
        public string IconSource => GetIconPath();

        [Browsable(false)]
        [JsonIgnore]
        public S7Object Parent { get; set; }

        [Browsable(false)]
        public ObservableCollection<S7Object> Children { get; set; } = new ObservableCollection<S7Object>();

        [Browsable(false)]
        public bool IsExpanded
        {
            get => _isExpanded;
            set
            {
                if (_isExpanded != value)
                {
                    _isExpanded = value;
                    OnPropertyChanged(nameof(IsExpanded));
                }
            }
        }

        // Para búsquedas de texto
        [Browsable(false)]
        public bool ContainsText(string searchText)
        {
            if (string.IsNullOrWhiteSpace(searchText))
                return false;

            searchText = searchText.ToLowerInvariant();

            return Name?.ToLowerInvariant().Contains(searchText) == true ||
                   Description?.ToLowerInvariant().Contains(searchText) == true ||
                   Number?.ToLowerInvariant().Contains(searchText) == true;
        }

        private string GetIconPath()
        {
            return ObjectType switch
            {
                S7ObjectType.Project => "/Resources/project.png",
                S7ObjectType.Device => "/Resources/device.png",
                S7ObjectType.Folder => "/Resources/folder.png",
                S7ObjectType.DataBlock => "/Resources/db.png",
                S7ObjectType.FunctionBlock => "/Resources/fb.png",
                S7ObjectType.Function => "/Resources/fc.png",
                S7ObjectType.Organization => "/Resources/ob.png",
                S7ObjectType.Symbol => "/Resources/symbol.png",
                _ => "/Resources/default.png"
            };
        }

        public event PropertyChangedEventHandler PropertyChanged;

        protected virtual void OnPropertyChanged(string propertyName)
        {
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }
    }
}