using System.ComponentModel;
using System.Net.Http;
using System.Reflection;
using DS.Module.Core.Data;
using DS.Module.Core.Extensions;
using Microsoft.AspNetCore.Http;
using SqlSugar;

namespace DS.Module.Core;

/// <summary>
/// 业务操作结果信息类，对操作结果进行封装
/// </summary>
public class DataResult : DataResult<object>
{
    static DataResult()
    {
        Success = new DataResult(ResultCode.Success);
        NoChanged = new DataResult(ResultCode.NoChanged);
    }

    /// <summary>
    /// 初始化一个<see cref="DataResult"/>类型的新实例
    /// </summary>
    public DataResult() : this(ResultCode.NoChanged)
    {
    }

    /// <summary>
    /// 初始化一个<see cref="DataResult"/>类型的新实例
    /// </summary>
    public DataResult(ResultCode resultType) : this(resultType, null, null)
    {
    }

    /// <summary>
    /// 初始化一个<see cref="DataResult"/>类型的新实例
    /// </summary>
    public DataResult(ResultCode resultType, string message, string multiCode = "") : this(resultType, message, null, multiCode)
    {
    }

    /// <summary>
    /// 初始化一个<see cref="DataResult"/>类型的新实例
    /// </summary>
    public DataResult(ResultCode type, string message, object data, string multiCode = "") : base(type, message, data, multiCode)
    {
    }

    /// <summary>
    /// 获取 成功的操作结果
    /// </summary>
    public static DataResult Success { get; private set; }

    /// <summary>
    /// 获取 未变更的操作结果
    /// </summary>
    public new static DataResult NoChanged { get; private set; }

    /// <summary>
    /// 将<see cref="DataResult{TData}"/>转换为<see cref="DataResult"/>
    /// </summary>
    /// <returns></returns>
    public DataResult<T> ToDataResult<T>()
    {
        T data = default(T);
        if (Data is T variable)
        {
            data = variable;
        }

        return new DataResult<T>(ResultCode.Success, Message, data);
    }

    /// <summary>
    /// 返回成功的结果
    /// </summary>
    /// <param name="message">消息</param>
    /// <param name="data">结果</param>
    /// <returns></returns>
    public static DataResult Successed(string message, object data, string multiCode = "")
    {
        return new DataResult(ResultCode.Success, message, data, multiCode);
    }

    public static DataResult Successed(string message, string multiCode = "")
    {
        return new DataResult(ResultCode.Success, message, multiCode);
    }

    /// <summary>
    /// 其他操作
    /// </summary>
    /// <param name="message"></param>
    /// <param name="multiCode"></param>
    /// <returns></returns>
    public static DataResult Other(string message, string multiCode = "")
    {
        return new DataResult(ResultCode.Other, message, null, multiCode);
    }

    /// <summary>
    /// 返回失败的结果
    /// </summary>
    /// <param name="message">消息</param>
    /// <param name="multiCode"></param>
    /// <returns></returns>
    public static DataResult Failed(string message, string multiCode = "")
    {
        return new DataResult(ResultCode.Error, message, multiCode);
    }

    /// <summary>
    /// 返回失败的结果-带占位符
    /// </summary>
    /// <param name="db">数据库db</param>
    /// <param name="accessor">IHttpContextAccessor</param>
    /// <param name="multiCode">多语言代码</param>
    /// <param name="placeholde1">占位符1</param>
    /// <param name="placeholde2">占位符2</param>
    /// <param name="placeholde3">占位符3</param>
    /// <param name="placeholde4">占位符4</param>
    /// <param name="placeholde5">占位符5</param>
    /// <returns></returns>
    /// <exception cref="Exception"></exception>
    public static DataResult FailedWithPlaceholder(ISqlSugarClient db, IHttpContextAccessor accessor, string multiCode, string placeholde1 = "", string placeholde2 = "", string placeholde3 = "", string placeholde4 = "", string placeholde5 = "")
    {
         
        var desc = string.Empty;
        var language = accessor.HttpContext.Request.Headers["LanguageType"].FirstOrDefault();
        if (language.IsNullOrEmpty())
        {
            language = "CN";
        }
        language = language.ToUpper();
        var result = string.Empty;
        var setInfo = db.Queryable<SysLanguageSet>().Where(x => x.MultiCode == multiCode && x.LanguageType == language && x.IsPlaceholder == true)
            .First();
        if (setInfo.IsNotNull())
        {
            desc = setInfo.Content;
        }
        else
        {
            if (language == "CN")
            {
                var fieldInfo = typeof(MultiLanguageConst).GetField(nameof(multiCode)); 
                var attribute = fieldInfo.GetCustomAttribute<DescriptionAttribute>();
                desc = attribute?.Description ?? string.Empty; 
            }
            else
            {
                throw new Exception($"未设置多语言:" + language + "下的消息提示代码:" + multiCode);
            }
        }
       

        return new DataResult(ResultCode.Error, string.Format(desc, placeholde1, placeholde2, placeholde3, placeholde4, placeholde5), multiCode);
    }
    /// <summary>
    /// 返回失败的结果
    /// </summary>
    /// <param name="fieldName">类<see cref="MultiLanguageConst"/>中配置的字符串常量名</param>
    /// <returns></returns>
    public static DataResult FailedWithDesc(string fieldName)
    {
        var fieldInfo = typeof(MultiLanguageConst).GetField(fieldName) ?? throw new ArgumentException($"不存在的常量：{fieldName}", fieldName);

        var attribute = fieldInfo.GetCustomAttribute<DescriptionAttribute>();
        var desc = attribute?.Description ?? string.Empty;
        var value = fieldInfo.GetValue(null) as string ?? string.Empty;

        return Failed(desc, fieldName);
    }
}

public class DataResult<TData> : IDataResult<ResultCode, TData>
{
    static DataResult()
    {
        NoChanged = new DataResult<TData>(ResultCode.NoChanged);
    }

    /// <summary>
    /// 初始化一个<see cref="DataResult"/>类型的新实例
    /// </summary>
    public DataResult() : this(ResultCode.NoChanged)
    {
    }

    /// <summary>
    /// 初始化一个<see cref="DataResult{TData}"/>类型的新实例
    /// </summary>
    public DataResult(ResultCode resultType) : this(resultType, null, default(TData))
    {
    }

    /// <summary>
    /// 初始化一个<see cref="DataResult{TData}"/>类型的新实例
    /// </summary>
    public DataResult(ResultCode resultType, string message) : this(resultType, message, default(TData))
    {
    }

    /// <summary>
    /// 初始化一个<see cref="DataResult{TResultType,TData}"/>类型的新实例
    /// </summary>
    public DataResult(ResultCode type, string message, TData data, string multiCode = "", int count = 0)
    {
        if (message == null)
        {
            message = (type as Enum)?.EnumDescription();
        }

        Code = type;
        MultiCode = multiCode;
        _message = message;
        Data = data;
        Count = count;
    }
    public DataResult(ResultCode type, string message, string multiCode = "")
    {
        if (message == null)
        {
            message = (type as Enum)?.EnumDescription();
        }

        Code = type;
        MultiCode = multiCode;
        _message = message;
    }
    /// <summary>
    /// 结果码
    /// </summary>
    public ResultCode Code { get; set; }

    private string _message;

    /// <summary>
    /// 多语言代码
    /// </summary>
    public string MultiCode { get; set; }
    /// <summary>
    /// 总记录数
    /// </summary>
    public int Count { get; set; }

    /// <summary>
    /// 获取 未变更的操作结果
    /// </summary>
    public virtual string Message
    {
        get => _message ?? Code.EnumDescription();
        set => _message = value;
    }

    /// <summary>
    /// 获取 未变更的操作结果
    /// </summary>
    public static DataResult<TData> NoChanged { get; private set; }

    /// <summary>
    /// 获取 是否成功
    /// </summary>
    public bool Succeeded => Code == ResultCode.Success;

    public TData Data { get; set; }

    /// <summary>
    /// 返回成功的结果
    /// </summary>
    /// <param name="message">消息</param>
    /// <param name="data">结果</param>
    /// <param name="multiCode"></param>
    /// <returns></returns>
    public static DataResult<TData> Success(string message, TData data, string multiCode = "")
    {
        return new DataResult<TData>(ResultCode.Success, message, data, multiCode);
    }
    /// <summary>
    /// 返回成功的结果
    /// </summary>
    /// <param name="message"></param>
    /// <param name="multiCode"></param>
    /// <returns></returns>
    public static DataResult<TData> SuccessMsg(string message, string multiCode = "")
    {
        return new DataResult<TData>(ResultCode.Success, message, default(TData), multiCode);
    }

    /// <summary>
    /// 返回成功的结果
    /// </summary>
    /// <param name="data">结果</param>
    /// <param name="multiCode"></param>
    /// <returns></returns>
    public static DataResult<TData> Success(TData data, string multiCode = "")
    {
        return new DataResult<TData>(ResultCode.Success, string.Empty, data, multiCode);
    }

    /// <summary>
    /// 
    /// </summary>
    /// <param name="message"></param>
    /// <param name="multiCode"></param>
    /// <returns></returns>
    public static DataResult<TData> Failed(string message, string multiCode = "")
    {
        return new DataResult<TData>(ResultCode.Error, message, multiCode);
    }

    /// <summary>
    /// 返回失败的结果
    /// </summary>
    /// <param name="fieldName">类<see cref="MultiLanguageConst"/>中配置的字符串常量名</param>
    /// <returns></returns>
    public static DataResult<TData> FailedWithDesc(string fieldName)
    {
        var fieldInfo = typeof(MultiLanguageConst).GetField(fieldName) ?? throw new ArgumentException($"不存在的常量：{fieldName}", fieldName);

        var attribute = fieldInfo.GetCustomAttribute<DescriptionAttribute>();
        var desc = attribute?.Description ?? string.Empty;
        var value = fieldInfo.GetValue(null) as string ?? string.Empty;

        return Failed(desc, fieldName);
    }

    /// <summary>
    /// 
    /// </summary>
    /// <param name="message"></param>
    /// <param name="multiCode"></param>
    /// <returns></returns>
    public static DataResult<TData> FailedData(TData data, string message = "", string multiCode = "")
    {
        return new DataResult<TData>(ResultCode.Error, message, data, multiCode);
    }
    ///// <summary>
    ///// 
    ///// </summary>
    ///// <param name="message"></param>
    ///// <param name="ResultCode"></param>
    ///// <param name="multiCode"></param>
    ///// <returns></returns>
    //public static DataResult<TData> Failed(string message, ResultCode ResultCode = ResultCode.Error,string multiCode ="")
    //{
    //    return new DataResult<TData>(ResultCode, message,multiCode);
    //}

    /// <summary>
    /// 
    /// </summary>
    /// <param name="count"></param>
    /// <param name="data"></param>
    /// <param name="multiCode">多语言代码</param>
    /// <returns></returns>
    public static DataResult<TData> PageList(int count, TData data, string multiCode = "")
    {
        return new DataResult<TData>(ResultCode.Success, string.Empty, data, multiCode, count);
    }

    /// <summary>
    /// 
    /// </summary>
    /// <param name="message"></param>
    /// <param name="multiCode"></param>
    /// <returns></returns>
    public static DataResult<TData> Error(string message, string multiCode = "")
    {
        return new DataResult<TData>(ResultCode.Error, message, default(TData), multiCode);
    }

    /// <summary>
    /// 异常的DataResult
    /// </summary>
    public static DataResult<TData> Exception()
    {
        return new DataResult<TData>(ResultCode.Error, "程序异常,请联系管理员!", MultiLanguageConst.ProgramException);
    }
}