using MediatR;
using mws.backend.dotnet.application.Common;
using mws.backend.dotnet.application.Permissions;

namespace mws.backend.dotnet.application.Audit;

public record GetActionLogsQuery(Guid ActorUserId, ActionLogFilter Filter, int Page, int PageSize)
    : IRequest<PagedResult<ActionLogDto>>;

public class GetActionLogsHandler(IUnitOfWork uow, IPermissionService permissions)
    : IRequestHandler<GetActionLogsQuery, PagedResult<ActionLogDto>>
{
    public async Task<PagedResult<ActionLogDto>> Handle(GetActionLogsQuery query, CancellationToken ct)
    {
        await permissions.EnsureAsync(query.ActorUserId, "actionlogs", PermissionAction.View, ct);

        var page = await uow.ActionLogs.SearchAsync(query.Filter, query.Page, query.PageSize, ct);
        return new PagedResult<ActionLogDto>
        {
            Items = page.Items.Select(x => new ActionLogDto
            {
                Id = x.Id,
                ActorUserId = x.ActorUserId,
                ActorUsername = x.ActorUsername,
                Action = x.Action,
                EntityType = x.EntityType,
                EntityId = x.EntityId,
                EntityName = x.EntityName,
                IpAddress = x.IpAddress,
                UserAgent = x.UserAgent,
                CreatedAt = x.CreatedAt,
            }).ToList(),
            TotalCount = page.TotalCount,
            Page = page.Page,
            PageSize = page.PageSize,
        };
    }
}