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import { filterOutParams } from './filter-out-params.js'
import { FlattenParams } from './flat.types.js'
import { get } from './get.js'
import { set } from './set.js'
import { pathToParts } from './path-to-parts.js'
import { DELIMITER } from './constants.js'
/**
* @load ./remove-path.doc.md
* @memberof module:flat
* @param {FlattenParams} params
* @param {...string} properties
* @returns {FlattenParams}
*/
const removePath = (params: FlattenParams, path: string): FlattenParams => {
// by default simply filter out elements from the object
let filtered = filterOutParams(params, path)
// reverse means that we iterate from the closes parent
const parentPaths = pathToParts(path).reverse()
// but if one of the parent is an array
parentPaths.find((parentPath, parentIndex) => {
const parent = get(params, parentPath)
if (Array.isArray(parent)) {
// previous element is stringified index like 'property.1'
const previousPaths = parentPaths[parentIndex - 1].split(DELIMITER)
// so this is the index: 1
const previousPathIndex = previousPaths[previousPaths.length - 1]
parent.splice(+previousPathIndex, 1)
filtered = set(params, parentPath, parent)
// this works just for the firstly found array item, because in case of removing the last one
// it leaves `[]` as a value.
return true
}
return false
})
return filtered
}
export { removePath }
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