using AnalyticsBLL.Wizard;
using AnalyticsDAL.DTO.Wizard;
using FastEndpoints;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.DTO.Framework.ResponseStandard;
using GB5Shared.FastEndPoint;
using static GB5Shared.GB5Constant.Constant;

namespace AnalyticsSL.EndPoints.Wizard
{
    /// <summary>Read-only schema browsing step of the Analytics Catalog Wizard — never cached
    /// (the underlying schema can change independently of any Analytics-side write, and this is
    /// a low-frequency, admin-driven action).</summary>
    public class DiscoverSchema : BaseEndpoint<DiscoverSchema.DiscoverSchemaParameters, ResponseStandardDTO<object>>
    {
        private readonly IAnalyticsWizardBLL _bll;

        public DiscoverSchema(IAnalyticsWizardBLL bll) => _bll = bll;

        public override void Configure()
        {
            Post("/Analytics/Wizard/DiscoverSchema");
            AllowAnonymous();
        }

        public record DiscoverSchemaParameters(
            [property: FromBody]   WizardDiscoverRequestDTO Request,
            [property: FromHeader] string Login
        );

        protected override string? GetCacheKey(DiscoverSchemaParameters req, LoginDTO login) => null;

        protected override async Task<ResponseStandardDTO<object>> ExecuteAsync(
            DiscoverSchemaParameters req, LoginDTO login, CancellationToken ct)
        {
            try
            {
                var result = await _bll.DiscoverAsync(req.Request, login, ct);
                return await GB5Shared.ResponseStandard.Response.CreateSuccessResponse(result, CacheKeyLevel.NOT_REQUIRED, login);
            }
            catch (Exception ex)
            {
                return await GB5Shared.ResponseStandard.Response.CreateExceptionError<string>(
                    ex, CacheKeyLevel.NOT_REQUIRED, login, ex.Message, 500);
            }
        }
    }
}