using Tiobon.Core.Extensions;
using Tiobon.Core.Https;
using Microsoft.AspNetCore.Http;
using Serilog;
using Serilog.Events;

namespace Tiobon.Core.Serilog.Utility;

public class SerilogRequestUtility
{
	public const string HttpMessageTemplate =
		"HTTP {RequestMethod} {RequestPath} QueryString:{QueryString} Body:{Body}  responded {StatusCode} in {Elapsed:0.0000} ms";

	private static readonly List<string> _ignoreUrl = new()
	{
		"/job",
	};

	private static LogEventLevel DefaultGetLevel(HttpContext ctx,
		double _,
		Exception? ex)
	{
		return ex is null && ctx.Response.StatusCode <= 499 ? LogEventLevel.Information : LogEventLevel.Error;
	}

	public static LogEventLevel GetRequestLevel(HttpContext ctx, double _, Exception? ex) =>
		ex is null && ctx.Response.StatusCode <= 499 ? IgnoreRequest(ctx) : LogEventLevel.Error;

	private static LogEventLevel IgnoreRequest(HttpContext ctx)
	{
		var path = ctx.Request.Path.Value;
		if (path.IsNullOrEmpty())
		{
			return LogEventLevel.Information;
		}

		return _ignoreUrl.Any(s => path.StartsWith(s)) ? LogEventLevel.Verbose : LogEventLevel.Information;
	}

	/// <summary>
	/// 从Request中增加附属属性
	/// </summary>
	/// <param name="diagnosticContext"></param>
	/// <param name="httpContext"></param>
	public static void EnrichFromRequest(IDiagnosticContext diagnosticContext, HttpContext httpContext)
	{
		var request = httpContext.Request;

		diagnosticContext.Set("RequestHost", request.Host);
		diagnosticContext.Set("RequestScheme", request.Scheme);
		diagnosticContext.Set("Protocol", request.Protocol);
		diagnosticContext.Set("RequestIp", httpContext.GetRequestIp());

		if (request.Method == HttpMethods.Get)
		{
			diagnosticContext.Set("QueryString", request.QueryString.HasValue ? request.QueryString.Value : string.Empty);
			diagnosticContext.Set("Body", string.Empty);
		}
		else
		{
			diagnosticContext.Set("QueryString", request.QueryString.HasValue ? request.QueryString.Value : string.Empty);
			diagnosticContext.Set("Body", request.ContentLength > 0 ? request.GetRequestBody() : string.Empty);
		}

		diagnosticContext.Set("ContentType", httpContext.Response.ContentType);

		var endpoint = httpContext.GetEndpoint();
		if (endpoint != null)
		{
			diagnosticContext.Set("EndpointName", endpoint.DisplayName);
		}
	}
}