using Serilog;
using Serilog.Core;
using Serilog.Events;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

public static class SerilogHelper
{
    public static void BuildLogger(bool usePID)
    {
        string outputTemplate;
        if (usePID)
            outputTemplate = "{Timestamp:yyyy-MM-dd HH:mm:ss.fff}[线程={ThreadId}][PID={PID}][{Level:u3}]{Message:lj}{NewLine}\t{Exception}";
        else
            outputTemplate = "{Timestamp:yyyy-MM-dd HH:mm:ss.fff}[线程={ThreadId}][{Level:u3}]{Message:lj}{NewLine}\t{Exception}";
        Serilog.Log.Logger = new Serilog.LoggerConfiguration()
            .Enrich.FromLogContext()
            .Enrich.With(new SerilogEnricher(usePID))
            .WriteTo.Console(outputTemplate: outputTemplate)
            .WriteTo.Logger(p => p.Filter.ByIncludingOnly(e => e.Level == Serilog.Events.LogEventLevel.Information)
                .WriteTo.File("Logs\\Info\\.log", rollingInterval: Serilog.RollingInterval.Day, outputTemplate: outputTemplate))
            .WriteTo.Logger(p => p.Filter.ByIncludingOnly(e => e.Level == Serilog.Events.LogEventLevel.Warning)
                .WriteTo.File("Logs\\Warning\\.log", rollingInterval: Serilog.RollingInterval.Day, outputTemplate: outputTemplate))
            .WriteTo.Logger(p => p.Filter.ByIncludingOnly(e => e.Level == Serilog.Events.LogEventLevel.Error)
                .WriteTo.File("Logs\\Error\\.log", rollingInterval: Serilog.RollingInterval.Day, outputTemplate: outputTemplate))
            .CreateLogger();
    }
}
/// <summary>
/// Serilog日志添加线程ID
/// </summary>
public class SerilogEnricher : ILogEventEnricher
{
    private bool useProcessId;
    private string PID;
    public SerilogEnricher(bool useProcessId = false)
    {
        this.useProcessId = useProcessId;
        if (useProcessId)
        {
            this.PID = Process.GetCurrentProcess().Id.ToString("D5");
        }
    }
    /// <summary>
    /// 在日志中添加线程ID
    /// </summary>
    /// <param name="logEvent"></param>
    /// <param name="propertyFactory"></param>
    public void Enrich(LogEvent logEvent, ILogEventPropertyFactory propertyFactory)
    {
        logEvent.AddPropertyIfAbsent(propertyFactory.CreateProperty(
          "ThreadId", Thread.CurrentThread.ManagedThreadId.ToString("D3")));
        if (useProcessId)
        {
            logEvent.AddPropertyIfAbsent(propertyFactory.CreateProperty("PID", PID));
        }
    }

}