23443993769

Committed 23 Mar 2026 02:59PM UTC coverage: 98.063% (+0.6%) from 97.457%

Build # 23443993769

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Pull #933

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web-flow

Commit Message

Merge 5b9c8da4b into 90c375ea4

Pull Request Pull Request #933: 896 guestbook review

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/src/sections/shared/form/DatasetMetadataForm/MetadataFieldsHelper.ts

import {
  MetadataBlockInfo,
  MetadataBlockInfoWithMaybeValues,
  MetadataField,
  MetadataFieldWithMaybeValue
} from '../../../../metadata-block-info/domain/models/MetadataBlockInfo'
import {
  DatasetDTO,
  DatasetMetadataBlockValuesDTO,
  DatasetMetadataChildFieldValueDTO
} from '../../../../dataset/domain/useCases/DTOs/DatasetDTO'
import {
  DatasetMetadataBlock,
  DatasetMetadataBlocks,
  DatasetMetadataFields,
  DatasetMetadataSubField,
  defaultLicense
} from '../../../../dataset/domain/models/Dataset'

export type DatasetMetadataFormValues = Record<string, MetadataBlockFormValues>

export type MetadataBlockFormValues = Record<
  string,
  string | PrimitiveMultipleFormValue | VocabularyMultipleFormValue | ComposedFieldValues
>

type VocabularyMultipleFormValue = string[]

type PrimitiveMultipleFormValue = { value: string }[]

type ComposedFieldValues = ComposedSingleFieldValue | ComposedSingleFieldValue[]

export type ComposedSingleFieldValue = Record<string, string>

export type DateLikeKind = 'Y' | 'YM' | 'YMD' | 'AD' | 'BC' | 'BRACKET' | 'TIMESTAMP'

/** Stable error codes for i18n mapping */
export const dateKeyMessageErrorMap = {
  E_EMPTY: 'field.invalid.date.empty',
  E_AD_DIGITS: 'field.invalid.date.adDigits',
  E_AD_RANGE: 'field.invalid.date.adRange',
  E_BC_NOT_NUM: 'field.invalid.date.bcNotNumeric',
  E_BRACKET_NEGATIVE: 'field.invalid.date.bracketNegative',
  E_BRACKET_NOT_NUM: 'field.invalid.date.bracketNotNumeric',
  E_BRACKET_RANGE: 'field.invalid.date.bracketRange',
  E_INVALID_MONTH: 'field.invalid.date.invalidMonth',
  E_INVALID_DAY: 'field.invalid.date.invalidDay',
  E_INVALID_TIME: 'field.invalid.date.invalidTime',
  E_UNRECOGNIZED: 'field.invalid.date.unrecognized'
} as const

export type DateErrorCode = keyof typeof dateKeyMessageErrorMap

type DateValidation =
  | { valid: true; kind: DateLikeKind }
  | { valid: false; errorCode: DateErrorCode }

export class MetadataFieldsHelper {
  public static replaceMetadataBlocksInfoDotNamesKeysWithSlash(
    metadataBlocks: MetadataBlockInfo[]
  ): MetadataBlockInfo[] {
    // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
    const metadataBlocksCopy: MetadataBlockInfo[] = structuredClone(metadataBlocks)

    for (const block of metadataBlocksCopy) {
      if (block.metadataFields) {
        this.metadataBlocksInfoDotReplacer(block.metadataFields)
      }
    }
    return metadataBlocksCopy
  }

  private static metadataBlocksInfoDotReplacer(metadataFields: Record<string, MetadataField>) {
    for (const key in metadataFields) {
      const field = metadataFields[key]
      const fieldReplacedKey = this.replaceDotWithSlash(key)
      if (fieldReplacedKey !== key) {
        // Change the key in the object only if it has changed (i.e., it had a dot)
        metadataFields[fieldReplacedKey] = field
        delete metadataFields[key]
      }
      if (field.name.includes('.')) {
        field.name = this.replaceDotWithSlash(field.name)
      }
      if (field.childMetadataFields) {
        this.metadataBlocksInfoDotReplacer(field.childMetadataFields)
      }
    }
  }

  public static replaceDatasetMetadataBlocksDotKeysWithSlash(
    datasetMetadataBlocks: DatasetMetadataBlock[]
  ): DatasetMetadataBlock[] {
    const dataWithoutKeysWithDots: DatasetMetadataBlock[] = [] as unknown as DatasetMetadataBlock[]

    for (const block of datasetMetadataBlocks) {
      const newBlockFields: DatasetMetadataFields =
        this.datasetMetadataBlocksCurrentValuesDotReplacer(block.fields)

      const newBlock = {
        name: block.name,
        fields: newBlockFields
      }

      dataWithoutKeysWithDots.push(newBlock)
    }

    return dataWithoutKeysWithDots
  }

  private static datasetMetadataBlocksCurrentValuesDotReplacer(
    datasetMetadataFields: DatasetMetadataFields
  ): DatasetMetadataFields {
    const datasetMetadataFieldsNormalized: DatasetMetadataFields = {}

    for (const key in datasetMetadataFields) {
      const newKey = key.includes('.') ? this.replaceDotWithSlash(key) : key

      const value = datasetMetadataFields[key]

      // Case of DatasetMetadataSubField
      if (typeof value === 'object' && !Array.isArray(value)) {
        const nestedKeysMapped = Object.entries(value).reduce((acc, [nestedKey, nestedValue]) => {
          const newNestedKey = nestedKey.includes('.')
            ? this.replaceDotWithSlash(nestedKey)
            : nestedKey

          acc[newNestedKey] = nestedValue
          return acc
        }, {} as DatasetMetadataSubField)

        datasetMetadataFieldsNormalized[newKey] = nestedKeysMapped
      } else if (
        Array.isArray(value) &&
        (value as readonly (string | DatasetMetadataSubField)[]).every((v) => typeof v === 'object')
      ) {
        // Case of DatasetMetadataSubField[]
        const nestedKeysMapped = value.map((subFields) => {
          return Object.entries(subFields).reduce((acc, [nestedKey, nestedValue]) => {
            const newNestedKey = nestedKey.includes('.')
              ? this.replaceDotWithSlash(nestedKey)
              : nestedKey

            acc[newNestedKey] = nestedValue
            return acc
          }, {} as DatasetMetadataSubField)
        })
        datasetMetadataFieldsNormalized[newKey] = nestedKeysMapped
      } else {
        datasetMetadataFieldsNormalized[newKey] = value
      }
    }

    return datasetMetadataFieldsNormalized
  }

  public static getFormDefaultValues(
    metadataBlocks: MetadataBlockInfoWithMaybeValues[]
  ): DatasetMetadataFormValues {
    const formDefaultValues: DatasetMetadataFormValues = {}

    for (const block of metadataBlocks) {
      const blockValues: MetadataBlockFormValues = {}

      for (const field of Object.values(block.metadataFields)) {
        const fieldName = field.name
        const fieldValue = field.value

        if (field.typeClass === 'compound') {
          const childFieldsWithEmptyValues: Record<string, string> = {}

          if (field.childMetadataFields) {
            for (const childField of Object.values(field.childMetadataFields)) {
              if (childField.typeClass === 'primitive') {
                childFieldsWithEmptyValues[childField.name] = ''
              }

              if (childField.typeClass === 'controlledVocabulary') {
                childFieldsWithEmptyValues[childField.name] = ''
              }
            }
          }

          if (fieldValue) {
            const castedFieldValue = fieldValue as
              | DatasetMetadataSubField
              | DatasetMetadataSubField[]

            let fieldValues: ComposedFieldValues

            if (Array.isArray(castedFieldValue)) {
              const subFieldsWithValuesPlusEmptyOnes = castedFieldValue.map((subFields) => {
                const fieldsValueNormalized: Record<string, string> = Object.entries(
                  subFields
                ).reduce((acc, [key, value]) => {
                  if (value !== undefined) {
                    acc[key] = value
                  }
                  return acc
                }, {} as Record<string, string>)

                return {
                  ...childFieldsWithEmptyValues,
                  ...fieldsValueNormalized
                }
              })

              fieldValues = subFieldsWithValuesPlusEmptyOnes
            } else {
              const fieldsValueNormalized: Record<string, string> = Object.entries(
                castedFieldValue
              ).reduce((acc, [key, value]) => {
                if (value !== undefined) {
                  acc[key] = value
                }
                return acc
              }, {} as Record<string, string>)

              fieldValues = {
                ...childFieldsWithEmptyValues,
                ...fieldsValueNormalized
              }
            }

            blockValues[fieldName] = fieldValues
          } else {
            blockValues[fieldName] = field.multiple
              ? [childFieldsWithEmptyValues]
              : childFieldsWithEmptyValues
          }
        }

        if (field.typeClass === 'primitive') {
          blockValues[fieldName] = this.getPrimitiveFieldDefaultFormValue(field)
        }

        if (field.typeClass === 'controlledVocabulary') {
          blockValues[fieldName] = this.getControlledVocabFieldDefaultFormValue(field)
        }
      }

      formDefaultValues[block.name] = blockValues
    }

    return formDefaultValues
  }

  private static getPrimitiveFieldDefaultFormValue(
    field: MetadataFieldWithMaybeValue
  ): string | PrimitiveMultipleFormValue {
    if (field.multiple) {
      const castedFieldValue = field.value as string[] | undefined

      if (!castedFieldValue) return [{ value: '' }]

      return castedFieldValue.map((stringValue) => ({ value: stringValue }))
    }
    const castedFieldValue = field.value as string | undefined
    return castedFieldValue ?? ''
  }

  private static getControlledVocabFieldDefaultFormValue(
    field: MetadataFieldWithMaybeValue
  ): string | VocabularyMultipleFormValue {
    if (field.multiple) {
      const castedFieldValue = field.value as string[] | undefined

      if (!castedFieldValue) return []

      return castedFieldValue
    }
    const castedFieldValue = field.value as string | undefined
    return castedFieldValue ?? ''
  }

  public static replaceSlashKeysWithDot(obj: DatasetMetadataFormValues): DatasetMetadataFormValues {
    const formattedNewObject: DatasetMetadataFormValues = {}

    for (const key in obj) {
      const blockKey = this.replaceSlashWithDot(key)
      const metadataBlockFormValues = obj[key]

      formattedNewObject[blockKey] = {}

      Object.entries(metadataBlockFormValues).forEach(([fieldName, fieldValue]) => {
        const newFieldName = this.replaceSlashWithDot(fieldName)

        if (
          this.isPrimitiveFieldValue(fieldValue) ||
          this.isVocabularyMultipleFieldValue(fieldValue) ||
          this.isPrimitiveMultipleFieldValue(fieldValue)
        ) {
          formattedNewObject[blockKey][newFieldName] = fieldValue
          return
        }

        if (this.isComposedSingleFieldValue(fieldValue)) {
          formattedNewObject[blockKey][newFieldName] = {}
          Object.entries(fieldValue).forEach(([nestedFieldName, nestedFieldValue]) => {
            const newNestedFieldName = this.replaceSlashWithDot(nestedFieldName)
            const parentOfNestedField = formattedNewObject[blockKey][
              newFieldName
            ] as ComposedSingleFieldValue

            parentOfNestedField[newNestedFieldName] = nestedFieldValue
          })
          return
        }

        if (this.isComposedMultipleFieldValue(fieldValue)) {
          formattedNewObject[blockKey][newFieldName] = fieldValue.map((composedFieldValues) => {
            const composedField: ComposedSingleFieldValue = {}

            Object.entries(composedFieldValues).forEach(([nestedFieldName, nestedFieldValue]) => {
              const newNestedFieldName = this.replaceSlashWithDot(nestedFieldName)

              composedField[newNestedFieldName] = nestedFieldValue
            })

            return composedField
          })
        }
      })
    }

    return formattedNewObject
  }

  public static formatFormValuesToDatasetDTO(
    formValues: DatasetMetadataFormValues,
    mode: 'create' | 'edit'
  ): DatasetDTO {
    const metadataBlocks: DatasetDTO['metadataBlocks'] = []

    for (const metadataBlockName in formValues) {
      const formattedMetadataBlock: DatasetMetadataBlockValuesDTO = {
        name: metadataBlockName,
        fields: {}
      }
      const metadataBlockFormValues = formValues[metadataBlockName]

      Object.entries(metadataBlockFormValues).forEach(([fieldName, fieldValue]) => {
        if (this.isPrimitiveFieldValue(fieldValue)) {
          if (fieldValue !== '' || mode === 'edit') {
            formattedMetadataBlock.fields[fieldName] = fieldValue
            return
          }
          return
        }
        if (this.isVocabularyMultipleFieldValue(fieldValue)) {
          if (fieldValue.length > 0 || mode === 'edit') {
            formattedMetadataBlock.fields[fieldName] = fieldValue
            return
          }
          return
        }

        if (this.isPrimitiveMultipleFieldValue(fieldValue)) {
          const primitiveMultipleFieldValues = fieldValue
            .map((primitiveField) => primitiveField.value)
            .filter((v) => v !== '')

          if (primitiveMultipleFieldValues.length > 0 || mode === 'edit') {
            formattedMetadataBlock.fields[fieldName] = primitiveMultipleFieldValues
            return
          }
          return
        }

        if (this.isComposedSingleFieldValue(fieldValue)) {
          const formattedMetadataChildFieldValue: DatasetMetadataChildFieldValueDTO = {}

          Object.entries(fieldValue).forEach(([nestedFieldName, nestedFieldValue]) => {
            if (nestedFieldValue !== '' || mode === 'edit') {
              formattedMetadataChildFieldValue[nestedFieldName] = nestedFieldValue
            }
          })
          if (Object.keys(formattedMetadataChildFieldValue).length > 0) {
            formattedMetadataBlock.fields[fieldName] = formattedMetadataChildFieldValue
            return
          }
          return
        }

        if (this.isComposedMultipleFieldValue(fieldValue)) {
          const formattedMetadataChildFieldValues: DatasetMetadataChildFieldValueDTO[] = []

          fieldValue.forEach((composedFieldValues) => {
            const composedField: DatasetMetadataChildFieldValueDTO = {}
            Object.entries(composedFieldValues).forEach(([nestedFieldName, nestedFieldValue]) => {
              if (nestedFieldValue !== '' || mode === 'edit') {
                composedField[nestedFieldName] = nestedFieldValue
              }
            })
            if (Object.keys(composedField).length > 0 || mode === 'edit') {
              formattedMetadataChildFieldValues.push(composedField)
            }
          })
          if (formattedMetadataChildFieldValues.length > 0 || mode === 'edit') {
            formattedMetadataBlock.fields[fieldName] = formattedMetadataChildFieldValues
          }

          return
        }
      })

      metadataBlocks.push(formattedMetadataBlock)
    }
    return { licence: defaultLicense, metadataBlocks }
  }

  public static addFieldValuesToMetadataBlocksInfo(
    normalizedMetadataBlocksInfo: MetadataBlockInfo[],
    normalizedDatasetMetadaBlocksCurrentValues: DatasetMetadataBlock[]
  ): MetadataBlockInfoWithMaybeValues[] {
    // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
    const normalizedMetadataBlocksInfoCopy: MetadataBlockInfoWithMaybeValues[] = structuredClone(
      normalizedMetadataBlocksInfo
    )

    const normalizedCurrentValuesMap: Record<string, DatasetMetadataFields> =
      normalizedDatasetMetadaBlocksCurrentValues.reduce((map, block) => {
        map[block.name] = block.fields
        return map
      }, {} as Record<string, DatasetMetadataFields>)

    normalizedMetadataBlocksInfoCopy.forEach((block) => {
      const currentBlockValues = normalizedCurrentValuesMap[block.name]

      if (currentBlockValues) {
        Object.keys(block.metadataFields).forEach((fieldName) => {
          const field = block.metadataFields[fieldName]

          if (this.replaceDotWithSlash(fieldName) in currentBlockValues) {
            field.value = currentBlockValues[this.replaceDotWithSlash(fieldName)]
          }
        })
      }
    })

    return normalizedMetadataBlocksInfoCopy
  }

  private static replaceDotWithSlash = (str: string) => str.replace(/\./g, '/')
  public static replaceSlashWithDot = (str: string) => str.replace(/\//g, '.')

  /*
   * To define the field name that will be used to register the field in the form
   * Most basic could be: metadataBlockName.name eg: citation.title
   * If the field is part of a compound field, the name will be: metadataBlockName.compoundParentName.name eg: citation.author.authorName
   * If the field is part of an array of fields, the name will be: metadataBlockName.fieldsArrayIndex.name.value eg: citation.alternativeTitle.0.value
   * If the field is part of a compound field that is part of an array of fields, the name will be: metadataBlockName.compoundParentName.fieldsArrayIndex.name eg: citation.author.0.authorName
   */
  public static defineFieldName(
    name: string,
    metadataBlockName: string,
    compoundParentName?: string,
    fieldsArrayIndex?: number
  ) {
    if (fieldsArrayIndex !== undefined && !compoundParentName) {
      return `${metadataBlockName}.${name}.${fieldsArrayIndex}.value`
    }
    if (fieldsArrayIndex !== undefined && compoundParentName) {
      return `${metadataBlockName}.${compoundParentName}.${fieldsArrayIndex}.${name}`
    }

    if (compoundParentName) {
      return `${metadataBlockName}.${compoundParentName}.${name}`
    }
    return `${metadataBlockName}.${name}`
  }

  private static isPrimitiveFieldValue = (value: unknown): value is string => {
    return typeof value === 'string'
  }
  private static isPrimitiveMultipleFieldValue = (
    value: unknown
  ): value is PrimitiveMultipleFormValue => {
    return Array.isArray(value) && value.every((v) => typeof v === 'object' && 'value' in v)
  }
  private static isVocabularyMultipleFieldValue = (
    value: unknown
  ): value is VocabularyMultipleFormValue => {
    return Array.isArray(value) && value.every((v) => typeof v === 'string')
  }
  private static isComposedSingleFieldValue = (
    value: unknown
  ): value is ComposedSingleFieldValue => {
    return typeof value === 'object' && !Array.isArray(value)
  }
  private static isComposedMultipleFieldValue = (
    value: unknown
  ): value is ComposedSingleFieldValue[] => {
    return Array.isArray(value) && value.every((v) => typeof v === 'object')
  }

  /**
   * To define the metadata blocks info that will be used to render the form.
   * In create mode, if a template is provided, it adds the fields and values from the template to the metadata blocks info.
   * In edit mode, it adds the current dataset values to the metadata blocks info.
   * Normalizes field names by replacing dots with slashes to avoid issues with react-hook-form. (e.g. coverage.Spectral.MinimumWavelength -> coverage/Spectral/MinimumWavelength)
   * Finally, it orders the fields by display order.
   */
  public static defineMetadataBlockInfo(
    mode: 'create' | 'edit',
    metadataBlocksInfoForDisplayOnCreate: MetadataBlockInfo[],
    metadataBlocksInfoForDisplayOnEdit: MetadataBlockInfo[],
    datasetMetadaBlocksCurrentValues: DatasetMetadataBlocks | undefined,
    templateMetadataBlocks: DatasetMetadataBlock[] | undefined
  ): MetadataBlockInfo[] {
    // Replace field names with dots to slashes, to avoid issues with the form library react-hook-form
    const normalizedMetadataBlocksInfoForDisplayOnCreate =
      this.replaceMetadataBlocksInfoDotNamesKeysWithSlash(metadataBlocksInfoForDisplayOnCreate)

    const normalizedMetadataBlocksInfoForDisplayOnEdit =
      this.replaceMetadataBlocksInfoDotNamesKeysWithSlash(metadataBlocksInfoForDisplayOnEdit)

    // CREATE MODE
    if (mode === 'create') {
      // If we have no template, we just return the metadata blocks info for create with normalized field names
      if (!templateMetadataBlocks) {
        return normalizedMetadataBlocksInfoForDisplayOnCreate
      }

      // 1) Normalize dataset template fields
      const normalizedDatasetTemplateMetadataBlocksValues =
        this.replaceDatasetMetadataBlocksDotKeysWithSlash(templateMetadataBlocks)

      // 2) Add missing fields from the template to the metadata blocks info for create
      const metadataBlocksInfoWithAddedFieldsFromTemplate =
        this.addFieldsFromTemplateToMetadataBlocksInfoForDisplayOnCreate(
          normalizedMetadataBlocksInfoForDisplayOnCreate,
          normalizedMetadataBlocksInfoForDisplayOnEdit,
          normalizedDatasetTemplateMetadataBlocksValues
        )

      // 3) Add the values from the template to the metadata blocks info for create
      const metadataBlocksInfoWithValuesFromTemplate = this.addFieldValuesToMetadataBlocksInfo(
        metadataBlocksInfoWithAddedFieldsFromTemplate,
        normalizedDatasetTemplateMetadataBlocksValues
      )

      // 4) Order fields by display order
      const metadataBlocksInfoOrdered = this.orderFieldsByDisplayOrder(
        metadataBlocksInfoWithValuesFromTemplate
      )

      return metadataBlocksInfoOrdered
    } else {
      // EDIT MODE
      const datasetCurrentValues = datasetMetadaBlocksCurrentValues as DatasetMetadataBlocks // In edit mode we always have current values

      // 1) Normalize dataset current values
      const normalizedDatasetMetadaBlocksCurrentValues =
        this.replaceDatasetMetadataBlocksDotKeysWithSlash(datasetCurrentValues)

      // 2) Add current values to the metadata blocks info for edit
      const metadataBlocksInfoWithCurrentValues = this.addFieldValuesToMetadataBlocksInfo(
        normalizedMetadataBlocksInfoForDisplayOnEdit,
        normalizedDatasetMetadaBlocksCurrentValues
      )

      // 3) Order fields by display order
      const metadataBlocksInfoOrdered = this.orderFieldsByDisplayOrder(
        metadataBlocksInfoWithCurrentValues
      )

      return metadataBlocksInfoOrdered
    }
  }

  public static addFieldsFromTemplateToMetadataBlocksInfoForDisplayOnCreate(
    metadataBlocksInfoForDisplayOnCreate: MetadataBlockInfo[],
    metadataBlocksInfoForDisplayOnEdit: MetadataBlockInfo[],
    templateBlocks: DatasetMetadataBlock[] | undefined
  ): MetadataBlockInfo[] {
    if (!templateBlocks || templateBlocks.length === 0) {
      return metadataBlocksInfoForDisplayOnCreate
    }

    const createCopy: MetadataBlockInfo[] = structuredClone(metadataBlocksInfoForDisplayOnCreate)

    const createMap = createCopy.reduce<Record<string, MetadataBlockInfo>>((acc, block) => {
      acc[block.name] = block
      return acc
    }, {})

    const editMap = metadataBlocksInfoForDisplayOnEdit.reduce<Record<string, MetadataBlockInfo>>(
      (acc, block) => {
        acc[block.name] = block
        return acc
      },
      {}
    )

    for (const tBlock of templateBlocks) {
      const blockName = tBlock.name
      const editBlock = editMap[blockName]

      // Could be the case that the template block is returned from the API but it has no fields, so we skip it.
      const templateBlockHasFields: boolean = Object.keys(tBlock.fields ?? {}).length > 0

      if (!templateBlockHasFields) continue

      if (!editBlock) {
        // We don't know how this block looks in "edit", we can't copy its shape. So we skip it.
        continue
      }

      // We ensure the block exists in the "create" array
      let createBlock = createMap[blockName]

      if (!createBlock) {
        createBlock = {
          id: editBlock.id,
          name: editBlock.name,
          displayName: editBlock.displayName,
          metadataFields: {},
          displayOnCreate: editBlock.displayOnCreate
        }
        createMap[blockName] = createBlock
        createCopy.push(createBlock)
      }

      const createFields = createBlock.metadataFields
      const editFields = editBlock.metadataFields

      // For each field that the template brings with value, if it doesn't exist in "create", we copy it from "edit"
      const templateBlockFields = tBlock.fields ?? {}
      for (const fieldName of Object.keys(templateBlockFields)) {
        if (createFields[fieldName]) continue

        const fieldFromEdit = editFields[fieldName]
        if (!fieldFromEdit) {
          // The field doesn't exist in "edit" either: there's no way to know its shape; we skip it
          continue
        }

        const clonedField = structuredClone(fieldFromEdit)

        createFields[fieldName] = clonedField
      }
    }

    return createCopy
  }

  private static orderFieldsByDisplayOrder(
    metadataBlocksInfo: MetadataBlockInfo[]
  ): MetadataBlockInfo[] {
    // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
    const metadataBlocksInfoCopy: MetadataBlockInfo[] = structuredClone(metadataBlocksInfo)

    for (const block of metadataBlocksInfoCopy) {
      if (block.metadataFields) {
        const fieldsArray = Object.values(block.metadataFields)
        fieldsArray.sort((a, b) => a.displayOrder - b.displayOrder)

        const orderedFields: Record<string, MetadataField> = {}
        for (const field of fieldsArray) {
          orderedFields[field.name] = field
        }
        block.metadataFields = orderedFields
      }
    }
    return metadataBlocksInfoCopy
  }

  /**
   * Extracts the invalid value from the error message, removing 'Validation Failed:' and everything after '(Invalid value:'
   * @param errorMessage
   * @returns the invalid value or null if it can't be extracted
   * @example
   * getValidationFailedFieldError("Validation Failed: Point of Contact E-mail test@test.c  is not a valid email address. (Invalid value:edu.harvard.iq.dataverse.DatasetFieldValueValue[ id=null ]).java.util.stream.ReferencePipeline$3@561b5200")
   * // returns "Point of Contact E-mail test@test.c is not a valid email address."
   */

  public static getValidationFailedFieldError(errorMessage: string): string | null {
    const validationFailedKeyword = 'Validation Failed:'
    const invalidValueKeyword = '(Invalid value:'

    const validationFailedKeywordIndex = errorMessage.indexOf(validationFailedKeyword)
    const invalidValueKeywordIndex = errorMessage.indexOf(invalidValueKeyword)

    if (validationFailedKeywordIndex !== -1 && invalidValueKeywordIndex !== -1) {
      const start = validationFailedKeywordIndex + validationFailedKeyword.length
      const end = invalidValueKeywordIndex
      const extractedValue = errorMessage.slice(start, end).trim()

      return extractedValue
    }

    return null
  }

  /**
   * This is for validating date type fields in the edit/create dataset form.
   * It replicates as much as possible the validation in the Dataverse backend
   * https://github.com/IQSS/dataverse/blob/42a2904a83fa3ed990c13813b9bc2bec166bfd4b/src/main/java/edu/harvard/iq/dataverse/DatasetFieldValueValidator.java#L99
   */

  public static isValidDateFormat(input: string): DateValidation {
    if (!input) return this.err('E_EMPTY')

    const s = input.trim()

    // 1) yyyy-MM-dd, yyyy-MM, yyyy
    if (this.isValidDateAgainstPattern(s, 'yyyy-MM-dd')) return this.ok('YMD')
    if (this.isValidDateAgainstPattern(s, 'yyyy-MM')) return this.ok('YM')
    if (this.isValidDateAgainstPattern(s, 'yyyy')) return this.ok('Y')

    // 2) Bracketed: starts "[" ends "?]" and not "[-"
    if (s.startsWith('[') && s.endsWith('?]')) {
      if (s.startsWith('[-')) return this.err('E_BRACKET_NEGATIVE')

      const core = s
        .replace(/\[|\?\]|-|(?:AD|BC)/g, ' ')
        .trim()
        .replace(/\s+/g, ' ')

      if (s.includes('BC')) {
        // BC: must be purely numeric
        if (!/^\d+$/.test(core)) return this.err('E_BRACKET_NOT_NUM')
        return this.ok('BRACKET')
      } else {
        // AD/unspecified: numeric, 1–4 digits, 0..9999
        if (!/^\d+$/.test(core)) return this.err('E_BRACKET_NOT_NUM')

        if (!this.isValidDateAgainstPattern(core, 'yyyy')) return this.err('E_BRACKET_RANGE')
        return this.ok('BRACKET')
      }
    }

    /// 3) AD: strip AD (with or without space)
    if (s.includes('AD')) {
      const before = s.substring(0, s.indexOf('AD')).trim()

      if (!/^\d+$/.test(before)) return this.err('E_AD_DIGITS')

      if (!this.isValidDateAgainstPattern(before, 'yyyy')) return this.err('E_AD_RANGE')

      return this.ok('AD')
    }

    // 4) BC: strip BC, numeric only (no explicit max in JSF)
    if (s.includes('BC')) {
      const before = s.substring(0, s.indexOf('BC')).trim()
      if (!/^\d+$/.test(before)) return this.err('E_BC_NOT_NUM')
      return this.ok('BC')
    }

    // 5) Timestamp fallbacks (temporary)
    if (this.isValidDateAgainstPattern(s, "yyyy-MM-dd'T'HH:mm:ss")) return this.ok('TIMESTAMP')
    if (this.isValidDateAgainstPattern(s, "yyyy-MM-dd'T'HH:mm:ss.SSS")) return this.ok('TIMESTAMP')
    if (this.isValidDateAgainstPattern(s, 'yyyy-MM-dd HH:mm:ss')) return this.ok('TIMESTAMP')

    // ---------- Targeted error mapping (ORDER MATTERS) ----------

    // Numeric but longer than 4 → AD range-style error
    if (/^\d+$/.test(s) && s.length > 4) return this.err('E_AD_RANGE')

    // Distinguish month vs day precisely
    const ymd = /^(\d{4})-(\d{2})-(\d{2})$/.exec(s)
    if (ymd) {
      const [, yStr, mStr, dStr] = ymd
      const year = Number(yStr)
      const month = Number(mStr)
      const day = Number(dStr)

      if (month < 1 || month > 12) return this.err('E_INVALID_MONTH')
      const dim = this.daysInMonth(year, month)
      if (day < 1 || day > dim) return this.err('E_INVALID_DAY')
      // If we get here, something else was invalid earlier, fall through.
    }

    // Pure year-month (yyyy-MM) → invalid month
    if (/^\d{4}-(\d{2})$/.test(s)) return this.err('E_INVALID_MONTH')

    // Looks like datetime → invalid time
    if (/^\d{4}-\d{2}-\d{2}T/.test(s) || /^\d{4}-\d{2}-\d{2} /.test(s))
      return this.err('E_INVALID_TIME')

    return this.err('E_UNRECOGNIZED')
  }

  public static isValidDateAgainstPattern(dateString: string, pattern: string): boolean {
    if (!dateString) return false
    const s = dateString.trim()
    if (s.length > pattern.length) return false

    switch (pattern) {
      case 'yyyy': {
        if (!/^\d{1,4}$/.test(s)) return false
        const year = Number(s)
        return year >= 0 && year <= 9999 // AD cap
      }
      case 'yyyy-MM': {
        const m = /^(\d{1,4})-(\d{1,2})$/.exec(s)
        if (!m) return false
        const month = Number(m[2])
        return month >= 1 && month <= 12
      }
      case 'yyyy-MM-dd': {
        const m = /^(\d{1,4})-(\d{1,2})-(\d{1,2})$/.exec(s)
        if (!m) return false
        const year = Number(m[1])
        const month = Number(m[2])
        const day = Number(m[3])

        if (!(month >= 1 && month <= 12)) return false
        const dim = this.daysInMonth(year, month)
        return day >= 1 && day <= dim
      }
      case "yyyy-MM-dd'T'HH:mm:ss": {
        const m = /^(\d{1,4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2})$/.exec(s)
        if (!m) return false
        const [, y, mo, d, hh, mm, ss] = m
        if (!this.isValidDateAgainstPattern(`${y}-${mo}-${d}`, 'yyyy-MM-dd')) return false
        return this.isValidHMS(hh, mm, ss)
      }
      case "yyyy-MM-dd'T'HH:mm:ss.SSS": {
        const m = /^(\d{1,4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2})\.(\d{3})$/.exec(s)
        if (!m) return false
        const [, y, mo, d, hh, mm, ss, ms] = m
        if (!this.isValidDateAgainstPattern(`${y}-${mo}-${d}`, 'yyyy-MM-dd')) return false
        return this.isValidHMS(hh, mm, ss) && /^\d{3}$/.test(ms)
      }
      case 'yyyy-MM-dd HH:mm:ss': {
        const m = /^(\d{1,4})-(\d{2})-(\d{2}) (\d{2}):(\d{2}):(\d{2})$/.exec(s)
        if (!m) return false
        const [, y, mo, d, hh, mm, ss] = m
        if (!this.isValidDateAgainstPattern(`${y}-${mo}-${d}`, 'yyyy-MM-dd')) return false
        return this.isValidHMS(hh, mm, ss)
      }
      default:
        return false
    }
  }

  public static isValidHMS(hh: string, mm: string, ss: string): boolean {
    const H = Number(hh),
      M = Number(mm),
      S = Number(ss)
    return H >= 0 && H <= 23 && M >= 0 && M <= 59 && S >= 0 && S <= 59
  }

  // prettier-ignore
  public static daysInMonth(y: number, m: number): number {
    switch (m) {
      case 1: case 3: case 5: case 7: case 8: case 10: case 12: return 31
      case 4: case 6: case 9: case 11: return 30
      case 2: return this.isLeapYear(y) ? 29 : 28
      default: return 0
    }
  }

  public static isLeapYear(y: number): boolean {
    return (y % 4 === 0 && y % 100 !== 0) || y % 400 === 0
  }

  private static ok(kind: DateLikeKind): DateValidation {
    return { valid: true, kind }
  }
  private static err(code: DateErrorCode): DateValidation {
    return { valid: false, errorCode: code }
  }
}

IQSS / dataverse-frontend / 23443993769

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