using System;
using System.Collections.Generic;
using System.Reflection;
using System.Text;
using System.Web.Mvc;
using NewLife.Reflection;
using NewLife.Serialization;
using XCode.Membership;

namespace NewLife.Cube
{
    /// <summary>控制器基类</summary>
    public class ControllerBaseX : Controller
    {
        #region 权限菜单
        /// <summary>获取可用于生成权限菜单的Action集合</summary>
        /// <param name="menu">该控制器所在菜单</param>
        /// <returns></returns>
        protected virtual IDictionary<MethodInfo, Int32> ScanActionMenu(IMenu menu)
        {
            var dic = new Dictionary<MethodInfo, Int32>();

            var type = GetType();

            // 添加该类型下的所有Action
            foreach (var method in type.GetMethods())
            {
                if (method.IsStatic || !method.IsPublic) continue;

                if (!method.ReturnType.As<ActionResult>()) continue;

                //if (method.GetCustomAttribute<HttpPostAttribute>() != null) continue;
                if (method.GetCustomAttribute<AllowAnonymousAttribute>() != null) continue;

                var att = method.GetCustomAttribute<EntityAuthorizeAttribute>();
                if (att != null && att.Permission > PermissionFlags.None) dic.Add(method, (Int32)att.Permission);
            }

            return dic;
        }
        #endregion

        #region Ajax处理
        /// <summary>返回结果并跳转</summary>
        /// <param name="data">结果。可以是错误文本、成功文本、其它结构化数据</param>
        /// <param name="url">提示信息后跳转的目标地址，[refresh]表示刷新当前页</param>
        /// <returns></returns>
        protected virtual ActionResult JsonTips(Object data, String url = null)
        {
            return ControllerHelper.JsonTips(data, url);
        }

        /// <summary>返回结果并刷新</summary>
        /// <param name="data">消息</param>
        /// <returns></returns>
        protected virtual ActionResult JsonRefresh(Object data)
        {
            return ControllerHelper.JsonRefresh(data);
        }
        #endregion

        #region Json结果
        /// <summary>返回Json数据</summary>
        /// <param name="data">数据对象，作为data成员返回</param>
        /// <param name="extend">与data并行的其它顶级成员</param>
        /// <returns></returns>
        protected virtual ActionResult JsonOK(Object data, Object extend = null)
        {
            var rs = new { result = true, data };
            var json = "";

            if (extend == null)
                json = OnJsonSerialize(rs);
            else
            {
                var dic = rs.ToDictionary();
                dic.Merge(extend);
                json = OnJsonSerialize(dic);
            }

            return Content(json, "application/json", Encoding.UTF8);
        }

        /// <summary>返回Json错误</summary>
        /// <param name="data">数据对象或异常对象，作为data成员返回</param>
        /// <param name="extend">与data并行的其它顶级成员</param>
        /// <returns></returns>
        protected virtual ActionResult JsonError(Object data, Object extend = null)
        {
            if (data is Exception ex) data = ex.GetTrue().Message;

            var rs = new { result = false, data };
            var json = "";

            if (extend == null)
                json = OnJsonSerialize(rs);
            else
            {
                var dic = rs.ToDictionary();
                dic.Merge(extend);
                json = OnJsonSerialize(dic);
            }

            return Content(json, "application/json", Encoding.UTF8);
        }

        /// <summary>Json序列化。默认使用FastJson</summary>
        /// <param name="data"></param>
        /// <returns></returns>
        protected virtual String OnJsonSerialize(Object data) => data.ToJson();
        #endregion
    }
}