using System;
using System.Diagnostics;
using System.Linq;
using System.Text;
using Hncore.Infrastructure.Common;
using Hncore.Infrastructure.Extension;
using Microsoft.AspNetCore.Http;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Logging;
using Hncore.Infrastructure.Core.Web;

namespace Hncore.Infrastructure.EF
{
    public class TraceLogger : ILogger
    {
        private readonly string categoryName;
        private IHttpContextAccessor _httpContextAccessor;

        public TraceLogger(string categoryName, IHttpContextAccessor httpContextAccessor)
        {
            this.categoryName = categoryName;
            this._httpContextAccessor = httpContextAccessor;
        }

        public bool IsEnabled(LogLevel logLevel) => true;

        public void Log<TState>(
            LogLevel logLevel,
            EventId eventId,
            TState state,
            Exception exception,
            Func<TState, Exception, string> formatter)
        {
            if (logLevel == LogLevel.Information && categoryName == "Microsoft.EntityFrameworkCore.Database.Command")
            {
                Console.WriteLine($"{DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")} 执行sql：");

                if (exception != null)
                {
                    Console.WriteLine("发生异常：\n" + exception);
                }
                else
                {
                    if (state.GetType().Name == "LogValues`6")
                    {
                        var paramText = state.GetType().GetField("_value1").GetValue(state).ToString();
                        var sql = state.GetType().GetField("_value5").GetValue(state).ToString();

                        var paramList = paramText.RegexMatches("@__.*?='.*?'");

                        paramList.ForEach(param =>
                        {
                            var arr = param.Split('=');

                            sql = sql.Replace(arr[0], arr[1]);
                        });

                        Console.WriteLine(sql);

                        if (_httpContextAccessor?.HttpContext?.Request?.Headers != null
                            && _httpContextAccessor.HttpContext.Request.Headers
                                .ContainsKey("enable-ef-log").ToBool())
                        {
                            StringBuilder log = new StringBuilder();

                            log.Append("请求URL：" + _httpContextAccessor.HttpContext.Request.GetAbsoluteUri() + "");
                            log.Append("\nMethod：" + _httpContextAccessor.HttpContext.Request.Method + "\n");
                            if (_httpContextAccessor.HttpContext.Request.Method.ToLower() != "get")
                            {
                                log.Append("Body：\n" + _httpContextAccessor.HttpContext.Items["___requestbody"] +
                                           "\n------------------------\n");
                            }
                            else
                            {
                                log.Append("\n------------------------\n");
                            }

                            log.Append(sql);

                            LogHelper.Debug("efcore日志", log.ToString());
                        }
                    }
                }

                //Console.WriteLine($"{DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")} {logLevel} {eventId.Id} {this.categoryName}");
                //Console.WriteLine(formatter(state, exception));
            }
        }

        public IDisposable BeginScope<TState>(TState state) => null;
    }

    public class TraceLoggerProvider : ILoggerProvider
    {
        private IHttpContextAccessor _httpContextAccessor;

        public TraceLoggerProvider(IHttpContextAccessor httpContextAccessor)
        {
            _httpContextAccessor = httpContextAccessor;
        }

        public ILogger CreateLogger(string categoryName) => new TraceLogger(categoryName, _httpContextAccessor);

        public void Dispose()
        {
        }
    }


    public static class DebugLog
    {
        public static void EnableDebugTrace(this DbContextOptionsBuilder optionsBuilder,
            IHttpContextAccessor httpContextAccessor)
        {
            LoggerFactory loggerFactory = new LoggerFactory();
            loggerFactory.AddProvider(new TraceLoggerProvider(httpContextAccessor));
            optionsBuilder.UseLoggerFactory(loggerFactory);
            optionsBuilder.EnableSensitiveDataLogging();
        }
    }
}