adminjs-upload/src/features/upload-file/utils/validate-properties.ts

import { DuplicateOccurrence } from '../constants'
import { FeatureInvocation, UploadOptions, UploadOptionsWithDefault } from '../types/upload-options.type'

const invocationPrefix = (index) => (
  `__invocation__${index}__`
)

/**
 * Checks if values for properties given by the user are different
 *
 * @private
 */
export const hasDuplicatedProperties = (
  properties: Partial<UploadOptions['properties']>,
): false | Array<DuplicateOccurrence> => {
  // counting how many occurrences of given value are in the keys.
  const mappedFields = Object.keys(properties).reduce((memo, key) => {
    const realKey = key.replace(new RegExp(invocationPrefix('\\d+')), '')
    const keys = memo[properties[key]] ? [...memo[properties[key]].keys, realKey] : [realKey]
    const property = properties[key] ? {
      [properties[key]]: {
        keys,
        value: properties[key],
      } } : {}
    return {
      ...memo,
      ...property,
    }
  }, {} as Record<string, DuplicateOccurrence>)

  const duplicated = Object.values(mappedFields).filter((value) => value.keys.length > 1)

  if (duplicated.length) {
    return duplicated
  }
  return false
}

/**
 * Checks if all properties have uniq names
 */
export const validatePropertiesGlobally = (
  globalContext: Array<FeatureInvocation>,
): false | Array<DuplicateOccurrence> => {
  // eslint-disable-next-line no-param-reassign
  globalContext = globalContext || []

  const allInvocationProperties = globalContext.reduce(
    (memo, invocation, index) => ({
      ...(memo),
      ...Object.keys(invocation.properties).reduce((props, key) => (
        {
          ...props,
          [`${invocationPrefix(index)}${key}`]: invocation.properties[key],
        }
      ), {}),
    }),
    {} as UploadOptionsWithDefault['properties'],
  )

  return hasDuplicatedProperties(allInvocationProperties)
}