using Microsoft.Extensions.Logging;
using System;

namespace DBHelper
{
    public class EfLoggerProvider : ILoggerProvider
    {
        public ILogger CreateLogger(string categoryName) => new EfLogger(categoryName);

        public void Dispose()
        { }
    }

    public class EfLogger : ILogger
    {
        private readonly string _categoryName;

        public EfLogger(string categoryName) => this._categoryName = categoryName;

        public bool IsEnabled(LogLevel logLevel) => true;

        public void Log<TState>(LogLevel logLevel, EventId eventId, TState state, Exception exception, Func<TState, Exception, string> formatter)
        {
            //ef core执行数据库查询时的categoryName为Microsoft.EntityFrameworkCore.Database.Command,日志级别为Information
            if (_categoryName != "Microsoft.EntityFrameworkCore.Database.Command" ||
                logLevel != LogLevel.Information) return;
            var logContent = formatter(state, exception);

            //TODO: 拿到日志内容想怎么玩就怎么玩吧
            //Console.WriteLine();
            //Console.ForegroundColor = ConsoleColor.Green;
            //Console.WriteLine(logContent);
            //Console.ResetColor();
        }

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