using FastEndpoints;
using FrameworkBLL.Taxonomy;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.DTO.Framework.ResponseStandard;
using GB5Shared.FastEndPoint;
using static GB5Shared.GB5Constant.Constant;

namespace FrameworkSL.Endpoints.Taxonomy.Course
{
    public class GetCourse : BaseEndpoint<GetCourse.GetCourseParameters, ResponseStandardDTO<object>>
    {
        private readonly ICourseBLL _CourseBLL;

        public GetCourse(ICourseBLL courseBLL)
        {
            _CourseBLL = courseBLL;
        }

        public override void Configure()
        {
            Get("/TaxonomyCourse/GetCourse");
            AllowAnonymous();
        }

        public record GetCourseParameters(
            [property: QueryParam] int CourseId,
            [property: FromHeader] string Login
        );

        protected override string? GetCacheKey(GetCourseParameters req, LoginDTO loginDTO)
            => KeyGenerator.KeyGeneration(req.CourseId, EntityConstant.OBJECTCOURSE, CacheKeyLevel.CLIENT_LEVEL, loginDTO);

        protected override async Task<ResponseStandardDTO<object>> ExecuteAsync(GetCourseParameters req, LoginDTO loginDTO, CancellationToken ct)
        {
            try
            {
                var result = await _CourseBLL.GetCourse(req.CourseId, loginDTO!);
                return await GB5Shared.ResponseStandard.Response.CreateSuccessResponse(result, CacheKeyLevel.CLIENT_LEVEL, loginDTO);
            }
            catch (Exception ex)
            {
                return await GB5Shared.ResponseStandard.Response.CreateExceptionError<string>(ex, CacheKeyLevel.CLIENT_LEVEL, loginDTO, ex.Message, 500);
            }
        }
    }
}