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

namespace ECPSL.Meeting.Endpoints.MeetingRecording;

/// <summary>Triggers transcription + summarization via GB5Shared.RecordingIntelligence.
/// IAICapabilityService. The default DI registration (NotConfiguredAICapabilityService) always
/// throws — RecordingTranscriptBLL.TranscribeAndSummarizeAsync already catches that specific
/// failure path internally, marks PROCESSINGSTATUS=4/failed with the reason, and returns a normal
/// (non-throwing) result describing the failure. This endpoint's own try/catch only guards
/// against genuinely unexpected failures (e.g. the record not existing), so a not-yet-configured
/// AI capability never surfaces as an unhandled 500.</summary>
public class TranscribeRecording : BaseEndpoint<TranscribeRecordingParameters, ResponseStandardDTO<object>>
{
    private readonly IRecordingTranscriptBLL _bll;

    public TranscribeRecording(IRecordingTranscriptBLL bll) => _bll = bll;

    public override void Configure()
    {
        Post("/MeetingRecording/TranscribeRecording");
        AllowAnonymous();
    }

    // Mutation endpoint — GetCacheKey returns null (base default) per CLAUDE.md's cache rule.

    protected override async Task<ResponseStandardDTO<object>> ExecuteAsync(
        TranscribeRecordingParameters req, LoginDTO login, CancellationToken ct)
    {
        try
        {
            var result = await _bll.TranscribeAndSummarizeAsync(req.RecordingTranscriptId, 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);
        }
    }
}