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/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.trino.spi.function.table;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import io.trino.spi.Experimental;
import io.trino.spi.expression.ConnectorExpression;
import io.trino.spi.type.RowType;

import java.util.List;

import static java.util.Objects.requireNonNull;

/**
 * This class represents the table argument passed to a Table Function.
 * 
 * This representation should be considered experimental. Eventually, {@link ConnectorExpression}
 * should be extended to include this kind of argument.
 */
@Experimental(eta = "2022-10-31")
public class TableArgument
        extends Argument
{
    private final RowType rowType;
    private final List partitionBy;
    private final List orderBy;

    @JsonCreator
    public TableArgument(
            @JsonProperty("rowType") RowType rowType,
            @JsonProperty("partitionBy") List partitionBy,
            @JsonProperty("orderBy") List orderBy)
    {
        this.rowType = requireNonNull(rowType, "rowType is null");
        this.partitionBy = requireNonNull(partitionBy, "partitionBy is null");
        this.orderBy = requireNonNull(orderBy, "orderBy is null");
    }

    @JsonProperty
    public RowType getRowType()
    {
        return rowType;
    }

    @JsonProperty
    public List getPartitionBy()
    {
        return partitionBy;
    }

    @JsonProperty
    public List getOrderBy()
    {
        return orderBy;
    }

    public static Builder builder()
    {
        return new Builder();
    }

    public static final class Builder
    {
        private RowType rowType;
        private List partitionBy = List.of();
        private List orderBy = List.of();

        private Builder() {}

        public Builder rowType(RowType rowType)
        {
            this.rowType = rowType;
            return this;
        }

        public Builder partitionBy(List partitionBy)
        {
            this.partitionBy = partitionBy;
            return this;
        }

        public Builder orderBy(List orderBy)
        {
            this.orderBy = orderBy;
            return this;
        }

        public TableArgument build()
        {
            return new TableArgument(rowType, partitionBy, orderBy);
        }
    }
}