using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Filters;

namespace Backend.Middleware;

public sealed class GlobalExceptionFilter : IExceptionFilter
{
	private readonly ILogger<GlobalExceptionFilter> _logger;

	public GlobalExceptionFilter(ILogger<GlobalExceptionFilter> logger)
	{
		_logger = logger;
	}

	public void OnException(ExceptionContext context)
	{
		_logger.LogError(context.Exception, "Unhandled exception on {Method} {Path}",
			context.HttpContext.Request.Method,
			context.HttpContext.Request.Path);

		if (context.Exception is ArgumentException)
		{
			context.Result = new BadRequestObjectResult(context.Exception.Message);
			context.ExceptionHandled = true;
			return;
		}

		context.Result = new ObjectResult(new { error = context.Exception.ToString() })
		{
			StatusCode = 500
		};
		context.ExceptionHandled = true;
	}
}