using System.Collections.ObjectModel;
using Prism.Mvvm;

namespace XP.Hardware.PLC.Models
{
    /// <summary>
    /// 信号分组模型，包含唯一 ID、DB 块号和信号列表 | Signal group model with unique ID, DB block number and signal list
    /// </summary>
    public class SignalGroup : BindableBase
    {
        private string _groupId = string.Empty;
        private int _dbNumber;
        private ObservableCollection<SignalEntry> _signals = new();

        /// <summary>
        /// 分组唯一标识（如 "SignalList_ReadCommon"）| Group unique identifier
        /// </summary>
        public string GroupId
        {
            get => _groupId;
            set => SetProperty(ref _groupId, value ?? string.Empty);
        }

        /// <summary>
        /// PLC 数据块号（如 1、31、100）| PLC data block number
        /// </summary>
        public int DBNumber
        {
            get => _dbNumber;
            set => SetProperty(ref _dbNumber, value);
        }

        /// <summary>
        /// 该分组下的信号列表 | Signal list under this group
        /// </summary>
        public ObservableCollection<SignalEntry> Signals
        {
            get => _signals;
            set => SetProperty(ref _signals, value ?? new ObservableCollection<SignalEntry>());
        }
    }
}