import { isFunction } from '../../../helpers/function.mjs';
import { arrayFilter } from '../../../helpers/array.mjs';
/**
 * Insert new items to the list.
 *
 * @private
 * @param {Array} indexedValues List of values for particular indexes.
 * @param {number} insertionIndex Position inside the actual list.
 * @param {Array} insertedIndexes List of inserted indexes.
 * @param {*} insertedValuesMapping Mapping which may provide value or function returning value for the specific parameters.
 * @returns {Array} List with new mappings.
 */ export function getListWithInsertedItems(indexedValues, insertionIndex, insertedIndexes, insertedValuesMapping) {
    const firstInsertedIndex = insertedIndexes.length ? insertedIndexes[0] : undefined;
    return [
        ...indexedValues.slice(0, firstInsertedIndex),
        ...insertedIndexes.map((insertedIndex, ordinalNumber)=>{
            if (isFunction(insertedValuesMapping)) {
                return insertedValuesMapping(insertedIndex, ordinalNumber);
            }
            return insertedValuesMapping;
        }),
        ...firstInsertedIndex === undefined ? [] : indexedValues.slice(firstInsertedIndex)
    ];
}
/**
 * Filter items from the list.
 *
 * @private
 * @param {Array} indexedValues List of values for particular indexes.
 * @param {Array} removedIndexes List of removed indexes.
 * @returns {Array} Reduced list of mappings.
 */ export function getListWithRemovedItems(indexedValues, removedIndexes) {
    return arrayFilter(indexedValues, (_, index)=>removedIndexes.includes(index) === false);
}
