using ECPBLL.Communication.Interfaces;
using ECPSL.Collaboration.Parameters;
using FastEndpoints;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.DTO.Framework.ResponseStandard;
using GB5Shared.FastEndPoint;
using static GB5Shared.GB5Constant.Constant;

namespace ECPSL.Collaboration.Endpoints.CollaborationSpaceDiscussion;

/// <summary>The Team Space "Discussion" tab — the full nested reply tree for one space, via the
/// shared Communication/CommentThread BLL with ObjectTypeId fixed to OBJECTCOLLABORATIONSPACE.
/// No separate Collaboration-owned discussion storage per the plan's explicit scope decision.</summary>
public class GetCollaborationSpaceDiscussion : BaseEndpoint<GetCollaborationSpaceDiscussionParameters, ResponseStandardDTO<object>>
{
    private readonly ICommentThreadBLL _bll;

    public GetCollaborationSpaceDiscussion(ICommentThreadBLL bll) => _bll = bll;

    public override void Configure()
    {
        Get("/CollaborationSpaceDiscussion/GetCollaborationSpaceDiscussion");
        AllowAnonymous();
    }

    protected override string? GetCacheKey(GetCollaborationSpaceDiscussionParameters req, LoginDTO login)
        => KeyGenerator.KeyGeneration(
            $"{EntityConstant.OBJECTCOLLABORATIONSPACE}:{req.CollaborationSpaceId}",
            EntityConstant.OBJECTCOMMENTTHREADLIST,
            CacheKeyLevel.CLIENT_LEVEL,
            login);

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