using CommonModel;
using SqlSugar;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using ZhongLianInterface;
using ZhongLianModel;

namespace ZhongLianService
{
    public class ParamService : IParamService
    {
        public ParamService(IServiceProvider services, ISqlSugarClient sqlSugarClient)
        {
            Services = services;
            Db = sqlSugarClient;

            Db.CodeFirst.InitTables(typeof(ParamDO));
        }

        private readonly IServiceProvider Services;

        private readonly ISqlSugarClient Db;

        /// <summary>
        /// 创建
        /// </summary>
        /// <param name="param">参数</param>
        /// <returns></returns>
        public async Task<ParamDO> Insert(ParamDO param)
        {
            await Db.Insertable<ParamDO>(param).ExecuteCommandAsync();
            return param;
        }

        /// <summary>
        /// 创建校验
        /// </summary>
        /// <param name="param">参数</param>
        /// <returns></returns>
        public string InsertCheck(ParamDO param)
        {

            if (string.IsNullOrEmpty(param.Name))
            {
                return "参数不能为空";
            }

            if (string.IsNullOrEmpty(param.Id))
            {
                var _MaxId = Db.Queryable<ParamDO>().Max(x => x.Id);

                if (string.IsNullOrEmpty(_MaxId))
                {
                    param.Id = $"PM000001";
                }
                else
                {
                    param.Id = $"PM{(Convert.ToInt32(_MaxId.Substring(2, 6)) + 1).ToString().PadLeft(6, '0')}";
                }
            }
            else
            {
                if (Db.Queryable<ParamDO>().Any(x => x.Id == param.Id))
                {
                    return "编号已存在";
                }
            }

            param.UseCount = 0;

            return "";
        }

        public async Task<ParamDO> Update(ParamDO param)
        {
            await Db.Updateable<ParamDO>(param).IgnoreColumns(ignoreAllNullColumns: true).Where(x => x.Id == param.Id).ExecuteCommandAsync();
            return param;
        }

        public async Task Use(string id) { 
            await Db.Updateable<ParamDO>().SetColumns(x => x.UseCount == (x.UseCount + 1)).Where(x => x.Id == id).ExecuteCommandAsync();
        }

        public string UpdateCheck(ParamDO param)
        {
            if (string.IsNullOrEmpty(param.Id) || !Db.Queryable<ParamDO>().Any(x => x.Id == param.Id))
            {
                return "参数不存在";
            }

            return "";
        }

        public async Task Delete(string[] ids)
        {
            await Db.Deleteable<ParamDO>().In(ids).ExecuteCommandAsync();
        }

        public async Task<List<ParamDO>> List(ParamDO param)
        {
            var _Result = await Db.Queryable<ParamDO>()
                .WhereIF(!string.IsNullOrEmpty(param.Category), x => x.Category == param.Category)
                .WhereIF(!string.IsNullOrEmpty(param.Id), x => x.Id == param.Id)
                .WhereIF(!string.IsNullOrEmpty(param.Name), x => x.Name!.Contains(param.Name!))
                .OrderByDescending(x => x.UseCount)
                .ToListAsync();
            return _Result;
        }
    }
}