using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.Extensions.CommandLineUtils;
using Volo.Abp.DependencyInjection;
using static System.Runtime.InteropServices.JavaScript.JSType;

namespace Yi.Abp.Tool
{
    public class CommandSelector : ITransientDependency
    {
        private readonly IEnumerable<ICommand> _commands;
        public CommandSelector(IEnumerable<ICommand> commands)
        {
            _commands = commands;
        }
        public async Task SelectorAsync(string[] args)
        {
            var app = new CommandLineApplication();

            // //1-设置命令
            // app.Command();
            // //2-各自命令内，设置选项
            // app.Options();
            // //3-执行,暴露方法
            // app.Execute(args);
            
            //
            // //不指定命令，默认给help
            // if (args.Length == 0)
            // {
            //    await SelectorDefaultCommandAsync();
            //    return;
            // }
            // var app = new CommandLineApplication();
            //
            // var commandStr = args[0];
            //
            // var commandOrNull = _commands.Where(x => x.CommandStrs.Select(x => x.ToUpper()).Contains(commandStr.ToUpper())).FirstOrDefault();
            //
            // //没有匹配到命令，，默认给help
            // if (commandOrNull == null)
            // {
            //     await SelectorDefaultCommandAsync();
            //     return;
            // }
            //
            // var command = commandOrNull;
            //
            // var options = new Dictionary<string, string?>();
            //
            // //去除命令，剩下进行参数装载
            // string[] commonArgs = args.Skip(1).ToArray();
            // for (var i = 0; i < commonArgs.Length; i++)
            // {
            //     var currentArg = commonArgs[i];
            //     //命令参数以-或者--开头
            //     if (IsCommandArg(currentArg))
            //     {
            //         string? commonValue = null;
            //         //参数值在他的下一位
            //         if (i + 1 < commonArgs.Length)
            //         {
            //             var nextArg = commonArgs[i + 1];
            //             if (!IsCommandArg(nextArg))
            //             {
            //                 commonValue = nextArg;
            //             }
            //
            //         }
            //         //删除-就是参数名
            //         options.Add(ArgToCommandMap(currentArg), commonValue);
            //     }
            //
            //
            //
            // }
            // await command.InvokerAsync(options,args);

        }
        /// <summary>
        /// 判断是否为命令参数
        /// </summary>
        /// <returns></returns>
        private bool IsCommandArg(string arg)
        {
            if (arg.StartsWith("-") || arg.StartsWith("--"))
            {
                return true;
            }
            else
            {
                return false;
            }
        }

        /// <summary>
        /// 参数到命令的转换
        /// </summary>
        /// <returns></returns>
        private string ArgToCommandMap(string arg)
        {
            return arg.TrimStart('-').TrimStart('-');
        }

        /// <summary>
        /// 选择默认命令
        /// </summary>
        /// <returns></returns>
        private async Task SelectorDefaultCommandAsync()
        {
            await SelectorAsync(["-h", "-error"]);
        }
    }
}