using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Runtime.Serialization.Json;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System.Web.Services.Protocols;
using System.Security.Cryptography;
using System.Text;
using System.Web.SessionState;
using System.Data;
using System.IO.Compression;
using System.Data.SqlClient;
using Dapper;
using Dapper.Contrib.Extensions;

namespace abbott_2024_event.BackEnd.api
{
    /// <summary>
    /// ipList 的摘要描述
    /// </summary>
    public class ipList : IHttpHandler, IReadOnlySessionState
    {
        SqlConnection conn = new SqlConnection(globalClass.appsettings("DBConnectionString"));
        public void ProcessRequest(HttpContext context)
        {
            result objRet = new result();
            DataContractJsonSerializer json = new DataContractJsonSerializer(objRet.GetType());
            context.Response.ContentType = "application/json;charset=utf-8";
            context.Response.AddHeader("Access-Control-Allow-Origin", "*");

            string acceptEncoding = context.Request.Headers["Accept-Encoding"].ToString().ToUpperInvariant();
            if (!String.IsNullOrEmpty(acceptEncoding))
            {
                if (acceptEncoding.Contains("GZIP"))
                {
                    //输出流头部GZIP压缩
                    context.Response.AppendHeader("Content-encoding", "gzip");
                    context.Response.Filter = new GZipStream(context.Response.Filter, CompressionMode.Compress);
                }
                else if (acceptEncoding.Contains("DEFLATE"))
                {
                    //输出流头部DEFLATE压缩
                    context.Response.AppendHeader("Content-encoding", "deflate");
                    context.Response.Filter = new DeflateStream(context.Response.Filter, CompressionMode.Compress);
                }
            }

            authToken objAuth = new authToken();

            string allowAnyIP = (context.Request["allow"] == null) ? "" : context.Request["allow"].ToString();
            string iplist = (context.Request["iplist"] == null) ? "[]" : context.Request["iplist"].ToString();
            string method = (context.Request["method"] == null) ? "" : context.Request["method"].ToString();

            if (!objAuth.user_isLogin)
            {
                objRet.ret = "no";
                objRet.err_code = "0001";
                objRet.message = "尚未登入，請登入後使用";
                json.WriteObject(context.Response.OutputStream, objRet);
                return;
            }

            if (method == "")
            {
                objRet.ret = "no";
                objRet.err_code = "0003";
                objRet.message = "無method";
                json.WriteObject(context.Response.OutputStream, objRet);
                return;
            }

            if (method == "get") {
                List<ipTable> ipTables = conn.Query<ipTable>("select * from ipTable").ToList();

                foreach (ipTable ipTable in ipTables) {
                    objRet.ipList.Add(ipTable.ipTable_address);
                }
                objRet.ret = "yes";
                json.WriteObject(context.Response.OutputStream, objRet);
                return; 
            }

            if (method == "edit") {
                dynamic ipJsonObj;

                ipJsonObj = JValue.Parse(iplist);

                conn.Execute("delete ipTable");

                foreach (string item in ipJsonObj)
                {
                    if (item != "") { 
                        ipTable newIp = new ipTable();
                        newIp.ipTable_address = item;
                        newIp.ipTable_create_user_uid = "admin";
                        conn.Insert<ipTable>(newIp);
                    }
                }

                objRet.ret = "yes";
                json.WriteObject(context.Response.OutputStream, objRet);
                return;
            }
        }

        public class result
        {
            public string ret = "no";
            public string err_code = "0000";
            public string message = "";
            public string allowAnyIP = "N";
            public List<string> ipList = new List<string>();
        }

        public bool IsReusable
        {
            get
            {
                return false;
            }
        }
    }
}