using System.Diagnostics.CodeAnalysis;
using Recyclarr.Common.Extensions;

namespace Recyclarr.Cli.Processors.ErrorHandling;

public class FlurlHttpExceptionHandler(ILogger log) : IFlurlHttpExceptionHandler
{
    [SuppressMessage("Design", "CA1031:Do not catch general exception types")]
    public async Task ProcessServiceErrorMessages(IServiceErrorMessageExtractor extractor)
    {
        switch (extractor)
        {
            case {HttpStatusCode: 401}:
                log.Error("Reason: Recyclarr is unauthorized to talk to the service. Is your `api_key` correct?");
                break;

            case {HttpStatusCode: null}:
                log.Error("Reason: Problem connecting to service. Is your `base_url` correct?");
                break;

            default:
                ProcessBody(await extractor.GetErrorMessage());
                break;
        }
    }

    private void ProcessBody(string responseBody)
    {
        var parser = new ErrorResponseParser(log, responseBody);

        // Try to parse validation errors
        if (parser.DeserializeList(s => s
            .Select(x => x.GetProperty("errorMessage").GetString())
            .NotNull(x => !string.IsNullOrEmpty(x))))
        {
            return;
        }

        // Try to parse single error message
        if (parser.Deserialize(s => s.GetProperty("message").GetString()))
        {
            return;
        }

        // A list of errors with a title
        if (parser.DeserializeServiceErrorList())
        {
            return;
        }

        // Last resort
        log.Error(
            "Reason: Unable to determine. Please report this as a bug and attach your `debug.log` and `verbose.log` files.");
    }
}