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//
// Copyright (c) 2016-2024 Deephaven Data Labs and Patent Pending
//
package io.deephaven.server.table.ops;

import com.google.rpc.Code;
import io.deephaven.auth.codegen.impl.TableServiceContextualAuthWiring;
import io.deephaven.base.verify.Assert;
import io.deephaven.engine.table.Table;
import io.deephaven.engine.util.TableTools;
import io.deephaven.proto.backplane.grpc.BatchTableRequest;
import io.deephaven.proto.backplane.grpc.EmptyTableRequest;
import io.deephaven.proto.util.Exceptions;
import io.deephaven.server.session.SessionState;
import io.grpc.StatusRuntimeException;

import javax.inject.Inject;
import javax.inject.Singleton;
import java.util.List;

@Singleton
public class EmptyTableGrpcImpl extends GrpcTableOperation {

    @Inject()
    public EmptyTableGrpcImpl(final TableServiceContextualAuthWiring authWiring) {
        super(authWiring::checkPermissionEmptyTable, BatchTableRequest.Operation::getEmptyTable,
                EmptyTableRequest::getResultId);
    }

    @Override
    public void validateRequest(final EmptyTableRequest request) throws StatusRuntimeException {
        if (request.getSize() < 0) {
            throw Exceptions.statusRuntimeException(Code.INVALID_ARGUMENT, "Size must be greater than zero");
        }
    }

    @Override
    public Table create(final EmptyTableRequest request,
            final List> sourceTables) {
        Assert.eq(sourceTables.size(), "sourceTables.size()", 0);
        return TableTools.emptyTable(request.getSize());
    }
}