using Serilog;
using Serilog.Formatting.Compact;

namespace SeriLoog.Extensions;

public static class SerilogBuilderExtensions
{
	/// <summary>
	/// Configures Serilog (console, file and MongoDB sinks) plus request logging,
	/// and registers <see cref="LogStoreOptions"/> and <see cref="Services.LogQueryService"/>.
	/// </summary>
	public static WebApplicationBuilder AddSerilogRequestLogging(this WebApplicationBuilder builder)
	{
		var configuration = builder.Configuration;

		var mongoConnectionString = configuration.GetConnectionString("MongoDb") ?? "mongodb://localhost:27017";
		var mongoDatabase = configuration["MongoDb:DatabaseName"] ?? "SeriLoog";
		var mongoCollection = configuration["MongoDb:Collections:Logs"] ?? "logs";
		var logFilePath = configuration["MongoDb:LogFilePath"];

		builder.Services.AddHttpContextAccessor();

		builder.Host.UseSerilog((context, services, loggerConfiguration) =>
		{
			loggerConfiguration
				.MinimumLevel.Verbose()
				.MinimumLevel.Override("Microsoft.AspNetCore", Serilog.Events.LogEventLevel.Warning)
				.Enrich.FromLogContext()
				.Enrich.WithProperty("Application", "SeriLoog")
				.Enrich.With(new HttpContextEnricher(services.GetRequiredService<IHttpContextAccessor>()))
				.WriteTo.Console()
				.WriteTo.MongoDB(
					$"{mongoConnectionString}/{mongoDatabase}",
					collectionName: mongoCollection);

			if (!string.IsNullOrWhiteSpace(logFilePath))
			{
				loggerConfiguration.WriteTo.File(
					formatter: new CompactJsonFormatter(),
					path: logFilePath,
					rollingInterval: RollingInterval.Day,
					retainedFileCountLimit: 14,
					shared: true);
			}
		});

		builder.Services.AddSingleton(new LogStoreOptions
		{
			MongoConnectionString = mongoConnectionString,
			MongoDatabase = mongoDatabase,
			MongoCollection = mongoCollection,
			LogFilePath = logFilePath
		});

		builder.Services.AddSingleton<Services.LogQueryService>();

		return builder;
	}
}