/**
 * Copyright (c) 2020-present, Goldman Sachs
 *
 * 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.
 */
import { Multiplicity } from '@finos/legend-graph';
import { UnsupportedOperationError } from '@finos/legend-shared';
import { QueryBuilderAggregateColumnState } from '../../aggregation/QueryBuilderAggregationState.js';
import { QueryBuilderWindowColumnState } from '../../window/QueryBuilderWindowState.js';
import { QueryBuilderSimpleProjectionColumnState } from '../../projection/QueryBuilderProjectionColumnState.js';
export const getColumnMultiplicity = (columnState) => {
    if (columnState instanceof QueryBuilderAggregateColumnState ||
        columnState instanceof QueryBuilderWindowColumnState) {
        return Multiplicity.ONE;
    }
    else if (columnState instanceof QueryBuilderSimpleProjectionColumnState) {
        return columnState.propertyExpressionState.propertyExpression.func.value
            .multiplicity;
    }
    throw new UnsupportedOperationError(`Can't get multiplicity for column`, columnState);
};
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