using FastEndpoints;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.DTO.Framework.ResponseStandard;
using GB5Shared.FastEndPoint;
using MMBLL.MMHead;

namespace MMSL.EndPoints.MMHead
{
    // Ported from GB4's MMHead.svc.cs Delete(DocumentId, CancelApplicable) — hard-deletes a
    // Draft MMHead document and its own detail/charges/schedule/addon/parameter/warranty/lot
    // rows, and unlinks (not deletes) any other document that referenced it. See MMHeadBLL.
    // DeleteMMHeadAsync / DeleteMMHeadQB for the exact scope and guard checks.
    public class DeleteMMHead : BaseEndpoint<DeleteMMHead.DeleteMMHeadParameters, object>
    {
        private readonly IMMHeadBLL _mmHeadBll;

        public DeleteMMHead(IMMHeadBLL mmHeadBll)
        {
            _mmHeadBll = mmHeadBll;
        }

        public override void Configure()
        {
            Delete("/MMHead/DeleteMMHead");
            AllowAnonymous();
        }

        public record DeleteMMHeadParameters(
            [property: QueryParam] int DocumentId,
            [property: FromHeader] string Login
        );

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

        protected override async Task<ResponseStandardDTO<object>> ExecuteAsync(
            DeleteMMHeadParameters req, LoginDTO login, CancellationToken ct)
        {
            try
            {
                var result = await _mmHeadBll.DeleteMMHeadAsync(req.DocumentId, login, ct);
                return await GB5Shared.ResponseStandard.Response.CreateSuccessResponse(result, GB5Shared.GB5Constant.Constant.CacheKeyLevel.NOT_REQUIRED, login);
            }
            catch (ArgumentException ex)
            {
                return await GB5Shared.ResponseStandard.Response.CreateExceptionError<string>(ex, GB5Shared.GB5Constant.Constant.CacheKeyLevel.NOT_REQUIRED, login, ex.Message, 400);
            }
            catch (InvalidOperationException ex)
            {
                return await GB5Shared.ResponseStandard.Response.CreateExceptionError<string>(ex, GB5Shared.GB5Constant.Constant.CacheKeyLevel.NOT_REQUIRED, login, ex.Message, 409);
            }
            catch (Exception ex)
            {
                return await GB5Shared.ResponseStandard.Response.CreateExceptionError<string>(ex, GB5Shared.GB5Constant.Constant.CacheKeyLevel.NOT_REQUIRED, login, "An unexpected error occurred. Please try again.", 500);
            }
        }
    }
}