using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;

namespace LocalizationTool.Models
{
    /// <summary>表格行：一条中文源文 + 各语言译文单元格。</summary>
    public class RowVm : INotifyPropertyChanged
    {
        public int Index { get; set; }
        public string Key { get; set; }

        /// <summary>单元格字典，key = 语言代码（如 "en-US"）。用 Dictionary 是为了支持 XAML 的 Cells[code] 字符串索引绑定。</summary>
        public Dictionary<string, CellVm> Cells { get; set; } = new Dictionary<string, CellVm>();

        public int MissingCount => Cells.Values.Count(c => c.IsMissing);
        public string MissingText => MissingCount == 0 ? "全译" : $"缺 {MissingCount}";
        public bool HasMissing => MissingCount > 0;

        public event PropertyChangedEventHandler PropertyChanged;
        public void Touch() => OnPropertyChanged(nameof(MissingCount));
        private void OnPropertyChanged(string n) =>
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(n));
    }
}