package logic

import (
	"context"
	"errors"

	deliverentity "spark-server/internal/module/deliver/entity"
	"spark-server/internal/pkg/errs"
)

const cmdDelete uint16 = 15

func (s *Service) DeleteMessage(ctx context.Context, userID int64, deviceID uint64, msgID int64) error {
	if !s.ready() || userID <= 0 {
		return errs.ErrUnauthorized
	}
	if msgID <= 0 {
		return errs.ErrInvalidArgument
	}
	msg, err := s.repo.GetByID(ctx, msgID)
	if err != nil {
		return err
	}
	if _, err := s.chats.GetMember(ctx, msg.ConversationID, userID); err != nil {
		if errors.Is(err, errs.ErrNotFound) {
			return errs.ErrForbidden
		}
		return err
	}
	if err := s.repo.HideForUser(ctx, userID, msg); err != nil {
		return err
	}
	if s.queue == nil {
		return nil
	}
	jobID, err := s.ids.NextID()
	if err != nil {
		return err
	}
	return s.queue.Push(ctx, &deliverentity.Job{
		MsgID: jobID, Cmd: cmdDelete, ConversationID: msg.ConversationID,
		FromUserID: userID, FromDeviceID: deviceID, ExcludeDevice: deviceID,
		ToUserIDs: []int64{userID}, NotPush: true,
		Payload: controlBytes(msg.ID, msg.ConversationID),
	})
}