using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using TranslateTool.Model;

namespace TranslateTool.ViewModel
{
    class DuplicateRemovalViewModel
    {

        /// <summary>
        /// 所选内容
        /// </summary>
        public string _selectContent;

        /// <summary>
        /// 重复Key值
        /// </summary>
        private string _key;

        /// <summary>
        /// 重复Key列表
        /// </summary>
        private List<LanguageItem> _languageItems;

        /// <summary>
        /// 关闭当前窗口
        /// </summary>
        private Action _closeAction;

        /// <summary>
        /// 显示Key相关描述
        /// </summary>
        public string Key 
        {
            get 
            {
                return _key; 
            }
        }

        /// <summary>
        /// 选择Content
        /// </summary>
        private ButtonCommand _submitCommand;

        /// <summary>
        /// 重复Key和Content
        /// </summary>
        public List<LanguageItem> RepeatList 
        {
            get { return _languageItems; }
        }

        /// <summary>
        /// 选择Content
        /// </summary>
        public ButtonCommand SubmitCommand 
        {
            get 
            {
                return _submitCommand;
            }
            set 
            {
                _submitCommand = value;
            }
        }

        /// <summary>
        /// 所选内容
        /// </summary>
        public LanguageItem SelectContent 
        {
            set 
            {
                if (_selectContent != value.Content)
                {
                    _selectContent = value.Content;
                }
            }
        }

        /// <summary>
        /// 删除重复Key值
        /// </summary>
        public event EventHandler RemoveRepeatKey;

        public DuplicateRemovalViewModel(List<LanguageItem> languageItems,Action closeAction) 
        {
            this._closeAction = closeAction;
            _languageItems = languageItems;
            _key = $"存在重复值{ _languageItems[0].Key}，请选择一个最佳Content";
            _submitCommand = new ButtonCommand(OnSubmit, "Submit");
        }

        /// <summary>
        /// 选择后关闭当前窗口
        /// </summary>
        /// <param name="obj"></param>
        private void OnSubmit(object obj)
        {
            if(!string.IsNullOrWhiteSpace(_selectContent))
            {
                _closeAction.Invoke();
            }
        }
    }
}