tuplo/dynoexpr

import type { IFilterInput } from "src/dynoexpr.d";

import {
    buildConditionAttributeNames,
    buildConditionAttributeValues,
    buildConditionExpression,
} from "./helpers";

export function getFilterExpression(params: IFilterInput = {}) {
    if (!params.Filter) {
        return params;
    }

    const { Filter, FilterLogicalOperator, ...restOfParams } = params;

    const FilterExpression = buildConditionExpression({
        Condition: Filter,
        LogicalOperator: FilterLogicalOperator,
    });

    const ExpressionAttributeNames = buildConditionAttributeNames(Filter, params);

    const ExpressionAttributeValues = buildConditionAttributeValues(
        Filter,
        params
    );

    return {
        ...restOfParams,
        FilterExpression,
        ExpressionAttributeNames,
        ExpressionAttributeValues,
    };
}