using FastEndpoints;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.DTO.Framework.ResponseStandard;
using GB5Shared.FastEndPoint;
using TCMSBLL.Interfaces;
using static GB5Shared.GB5Constant.Constant;

namespace TCMSSL.EndPoints.TestEnv;

/// <summary>
/// GET /TCMS/TestEnv/GetSnapshots?serverConfigId={int}
/// Lists existing snapshots for a run DB.
/// SQL Server: queries sys.databases (COW sparse-file snapshots).
/// PostgreSQL: queries pg_database by naming convention {RunDb}_snap_*.
/// Not cached — snapshot state changes frequently.
/// </summary>
public class GetSnapshots : BaseEndpoint<GetSnapshots.Params, ResponseStandardDTO<object>>
{
    private readonly ITCMSTestEnvBLL _Bll;
    public GetSnapshots(ITCMSTestEnvBLL bll) => _Bll = bll;

    public override void Configure()
    {
        Get("/TCMS/TestEnv/GetSnapshots");
        AllowAnonymous();
    }

    public record Params(
        [property: FromHeader] string Login,
        [property: QueryParam] int    ServerConfigId
    );

    protected override string? GetCacheKey(Params req, LoginDTO loginDTO) => null;

    protected override async Task<ResponseStandardDTO<object>> ExecuteAsync(
        Params req, LoginDTO loginDTO, CancellationToken ct)
    {
        var result = await _Bll.GetSnapshotsAsync(req.ServerConfigId, loginDTO, ct);
        return await GB5Shared.ResponseStandard.Response.CreateSuccessResponse(
            result, CacheKeyLevel.NOT_REQUIRED, loginDTO);
    }
}