using System.Text;
using System.Web;
using Common;
using Extensions;
using Infrastructure;
using Infrastructure.Model;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Filters;
using Services;

//本命名空间暂时先不改，改动比较大2023年9月2日
namespace Filters
{
    /// <summary>
    /// </summary>
    public class AuthorizationFilter : IAuthorizationFilter
    {
        

        public AuthorizationFilter()
        {
        }

        /// <summary>
        /// </summary>
        /// <param name="context"></param>
        public void OnAuthorization(AuthorizationFilterContext context)
        {
            var request = context.HttpContext.Request;
            string content = "";
            if(context.HttpContext.Request.Method.ToLower() == "get")
            {
                content = context.HttpContext.GetQueryString();
                content = GetParam(content);
                if(!string.IsNullOrEmpty(content))
                {
                    Dictionary<string, object> dic = Newtonsoft.Json.JsonConvert.DeserializeObject<Dictionary<string, object>>(content);

                    string queryString = "";
                    var parameters = context.ActionDescriptor.Parameters;
                    foreach(var parameter in parameters)
                    {
                        string parameterName = parameter.Name;
                        Type objectType = parameter.ParameterType;
                        if(objectType.FullName != "System.String")
                        {
                            System.Reflection.Assembly assembly = System.Reflection.Assembly.GetAssembly(objectType);
                            var entry = assembly.CreateInstance(objectType.FullName);
                            Type type = entry.GetType();
                            System.Reflection.PropertyInfo[] propertyInfos = type.GetProperties();
                            for (int i = 0; i < propertyInfos.Length; i++)
                            {
                                foreach (string key in dic.Keys)
                                {
                                    if (propertyInfos[i].Name == key)
                                    {
                                        object value = dic[key];
                                        string ParameterType = propertyInfos[i].GetMethod.ReturnParameter.ParameterType.Name;
                                        if (ParameterType == "Int32")
                                        {
                                            if(value == null || value == "") value = "0";
                                            value = Convert.ToInt32(value);
                                        }
                                        else if (ParameterType == "Decimal")
                                        {
                                            if(value == null || value == "") value = "0";
                                            value = Convert.ToDecimal(value);
                                        }
                                        else if (ParameterType == "Int64[]")
                                        {
                                            value = Tools.SpitLongArrary(Newtonsoft.Json.JsonConvert.SerializeObject(value).Replace("[", "").Replace("]", "").Trim('"'), ',');
                                        }
                                        else if (ParameterType == "Int32[]")
                                        {
                                            value = Tools.SpitIntArrary(Newtonsoft.Json.JsonConvert.SerializeObject(value).Replace("[", "").Replace("]", "").Trim('"'), ',');
                                        }
                                        else if (ParameterType == "List`1")
                                        {
                                            string val = Newtonsoft.Json.JsonConvert.SerializeObject(value).Replace("[", "").Replace("]", "").Trim('"');
                                            value = Tools.SpitLongArrary(val, ',').ToList();
                                        }
                                        if(value.ToString() == "-1") value = -1;
                                        if(value.ToString() == "[]") value = "";
                                        queryString += key + "=" + value.ToString() + "&";
                                        break;
                                    }
                                }
                            }
                        }
                    }

                    request.QueryString = new QueryString("?" + queryString.TrimEnd('&'));
                }
            }
            else if(context.HttpContext.Request.Method.ToLower() == "delete")
            {
                string path = request.Path.Value;
                string value = path.Substring(path.LastIndexOf("/") + 1);
                path = path.Substring(0, path.LastIndexOf("/") + 1);
                path += value;
                request.Path = new PathString(path);
                request.RouteValues["id"] = value;
            }
            else
            {
                content = context.HttpContext.GetBody();
                if(!string.IsNullOrEmpty(content))
                {
                    Dictionary<string, object> dic = Newtonsoft.Json.JsonConvert.DeserializeObject<Dictionary<string, object>>(content);

                    string queryString = "{";
                    var parameters = context.ActionDescriptor.Parameters;
                    foreach(var parameter in parameters)
                    {
                        string parameterName = parameter.Name;
                        Type objectType = parameter.ParameterType;
                        if(objectType.FullName != "System.String")
                        {
                            System.Reflection.Assembly assembly = System.Reflection.Assembly.GetAssembly(objectType);
                            var entry = assembly.CreateInstance(objectType.FullName);
                            Type type = entry.GetType();
                            System.Reflection.PropertyInfo[] propertyInfos = type.GetProperties();
                            for (int i = 0; i < propertyInfos.Length; i++)
                            {
                                foreach (string key in dic.Keys)
                                {
                                    if (propertyInfos[i].Name == key)
                                    {
                                        object value = dic[key];
                                        string ParameterType = propertyInfos[i].GetMethod.ReturnParameter.ParameterType.Name;
                                        if (ParameterType == "Int32")
                                        {
                                            if(value == null || value == "") value = "0";
                                            value = Convert.ToInt32(value);
                                        }
                                        else if (ParameterType == "Decimal")
                                        {
                                            if(value == null || value == "") value = "0";
                                            value = Convert.ToDecimal(value);
                                        }
                                        else if (ParameterType == "Int64[]")
                                        {
                                            value = Tools.SpitLongArrary(Newtonsoft.Json.JsonConvert.SerializeObject(value).Replace("[", "").Replace("]", "").Trim('"'), ',');
                                        }
                                        else if (ParameterType == "Int32[]")
                                        {
                                            value = Tools.SpitIntArrary(Newtonsoft.Json.JsonConvert.SerializeObject(value).Replace("[", "").Replace("]", "").Trim('"'), ',');
                                        }
                                        else if (ParameterType == "List`1")
                                        {
                                            string val = Newtonsoft.Json.JsonConvert.SerializeObject(value).Replace("[", "").Replace("]", "").Trim('"');
                                            value = Tools.SpitLongArrary(val, ',').ToList();
                                        }
                                        if(value.ToString() == "-1") value = -1;
                                        if(value.ToString() == "[]") value = "";
                                        queryString += "\"" + key + "\":\"" + value.ToString() + "\",";
                                        break;
                                    }
                                }
                            }
                        }
                    }
                    queryString = queryString.TrimEnd(',');
                    queryString += "}";
                    request.Body = new MemoryStream(Encoding.UTF8.GetBytes(queryString));
                }
            }
        }

        // public string Decrypt(string str)
        // {
        //     str = str.Trim('"');
        //     str = Encoding.UTF8.GetString(Convert.FromBase64String(str));
        //     return Dbconn.AesDecrypt(str, Base.GlobalConstant.ApiKey, Base.GlobalConstant.ApiIv);
        // }

        public string GetParam(string content)
        {
            string result = "{";
            if(content.StartsWith("?")) content = content.Substring(1);
            string[] data = content.Split('&');
            foreach(string sub in data)
            {
                string[] subData = sub.Split('=');
                result += "\"" + subData[0] + "\":\"" + subData[1] + "\",";
            }
            result += "}";
            return result;
        }
    }
}