import {
  RelationTypes,
  UITypes,
  dateFormats,
  getRenderAsTextFunForUiType,
  isAIPromptCol,
  isCreatedOrLastModifiedByCol,
  isCreatedOrLastModifiedTimeCol,
  isSystemColumn,
  isValidValue,
  isVirtualCol,
  getLookupColumnType as sdkGetLookupColumnType,
  validateRowFilters as sdkValidateRowFilters,
  timeFormats,
} from 'nocodb-sdk'
import type {
  AIRecordType,
  ButtonType,
  ColumnType,
  FilterType,
  LinkToAnotherRecordType,
  LookupType,
  RollupType,
  TableType,
} from 'nocodb-sdk'
import dayjs from 'dayjs'
import { isColumnRequiredAndNull } from './columnUtils'
import { parseFlexibleDate } from '~/utils/datetimeUtils'

export { isValidValue }

// Core PK extraction from pre-filtered PK columns — avoids re-filtering on every call.
export const extractPkFromPkColumns = (row: Record<string, any>, pkCols: ColumnType[]) => {
  if (!row || !pkCols.length) return null

  // if multiple pk columns, join them with ___ and escape _ in id values with \_ to avoid conflicts
  if (pkCols.length > 1) {
    return pkCols.map((c) => row?.[c.title!]?.toString?.().replaceAll('_', '\\_') ?? null).join('___')
  }

  const id = row?.[pkCols[0].title!] ?? null
  return id === null ? null : `${id}`
}

export const extractPkFromRow = (row: Record<string, any>, columns: ColumnType[]) => {
  if (!row || !columns) return null

  return extractPkFromPkColumns(
    row,
    columns.filter((c: Required<ColumnType>) => c.pk),
  )
}

export const rowPkData = (row: Record<string, any>, columns: ColumnType[]) => {
  const pkData: Record<string, string> = {}
  const pks = columns?.filter((c) => c.pk)
  if (row && pks && pks.length) {
    for (const pk of pks) {
      if (pk.title) pkData[pk.title] = row[pk.title]
    }
  }
  return pkData
}

export const getRowHash = (row: Record<string, any>) => {
  return MD5(JSON.stringify(row))
}

export const extractPk = (columns: ColumnType[]) => {
  if (!columns && !Array.isArray(columns)) return null
  return columns
    .filter((c) => c.pk)
    .map((c) => c.title)
    .join('___')
}

export const findIndexByPk = (pk: Record<string, string>, data: Row[]) => {
  for (const [i, row] of Object.entries(data)) {
    if (Object.keys(pk).every((k) => pk[k] === row.row[k])) {
      return parseInt(i)
    }
  }
  return -1
}

// a function to populate insert object and verify if all required fields are present
export async function populateInsertObject({
  getMeta,
  row,
  meta,
  ltarState,
  throwError,
  undo = false,
  allowNullFieldIds = [],
}: {
  meta: TableType
  ltarState: Record<string, any>
  getMeta: (baseId: string, tableIdOrTitle: string, force?: boolean) => Promise<TableType | null>
  row: Record<string, any>
  throwError?: boolean
  undo?: boolean
  allowNullFieldIds?: string[]
}) {
  const missingRequiredColumns = new Set()
  const insertObj = await meta.columns?.reduce(async (_o: Promise<any>, col) => {
    const o = await _o

    // if column is BT relation then check if foreign key is not_null(required)
    if (
      ltarState &&
      col.uidt === UITypes.LinkToAnotherRecord &&
      (<LinkToAnotherRecordType>col.colOptions).type === RelationTypes.BELONGS_TO
    ) {
      if (ltarState[col.title!] || row[col.title!]) {
        const ltarVal = ltarState[col.title!] || row[col.title!]
        const colOpt = <LinkToAnotherRecordType>col.colOptions
        const childCol = meta.columns!.find((c) => colOpt.fk_child_column_id === c.id)
        const relatedBaseId = (colOpt as any)?.fk_related_base_id || meta.base_id
        const relatedTableMeta = (await getMeta(relatedBaseId!, colOpt.fk_related_model_id!)) as TableType
        if (relatedTableMeta && childCol) {
          o[childCol.title!] = ltarVal[relatedTableMeta!.columns!.find((c) => c.id === colOpt.fk_parent_column_id)!.title!]
          if (o[childCol.title!] !== null && o[childCol.title!] !== undefined) missingRequiredColumns.delete(childCol.title)
        }
      }
    }
    // check all the required columns are not null
    if (isColumnRequiredAndNull(col, row)) {
      missingRequiredColumns.add(col.title)
    }

    if ((!col.ai || undo) && (row?.[col.title as string] !== null || allowNullFieldIds.includes(col.id as string))) {
      o[col.title as string] = row?.[col.title as string]
    }

    return o
  }, Promise.resolve({}))

  if (throwError && missingRequiredColumns.size) {
    throw new Error(`Missing required columns: ${[...missingRequiredColumns].join(', ')}`)
  }

  return { missingRequiredColumns, insertObj }
}

// a function to get default values of row
export const rowDefaultData = (columns: ColumnType[] = []) => {
  const defaultData: Record<string, string> = columns.reduce<Record<string, any>>((acc: Record<string, any>, col: ColumnType) => {
    //  avoid setting default value for system col, virtual col, rollup, formula, barcode, qrcode, links, ltar
    if (
      !isSystemColumn(col) &&
      !isVirtualCol(col) &&
      ![
        UITypes.Attachment,
        UITypes.Rollup,
        UITypes.Lookup,
        UITypes.Formula,
        UITypes.Barcode,
        UITypes.QrCode,
        UITypes.UUID,
      ].includes(col.uidt) &&
      isValidValue(col?.cdf) &&
      !/^\w+\(\)|CURRENT_TIMESTAMP$/.test(col.cdf)
    ) {
      const defaultValue = col.cdf
      acc[col.title!] = typeof defaultValue === 'string' ? defaultValue.replace(/^['"]|['"]$/g, '') : defaultValue
    }
    return acc
  }, {} as Record<string, any>)

  return defaultData
}

export const isRowEmpty = (record: Pick<Row, 'row'>, col: ColumnType): boolean => {
  if (!record || !col || !col.title) return true

  return !isValidValue(record.row[col.title])
}

export function validateRowFilters(
  _filters: FilterType[],
  data: any,
  columns: ColumnType[],
  client: any,
  metas: Record<string, any>,
  baseId?: string,
  options?: {
    currentUser?: {
      id: string
      email: string
    }
    timezone?: string
  },
) {
  return sdkValidateRowFilters({
    filters: _filters,
    data,
    columns,
    client,
    metas,
    baseId,
    options,
  })
}

export const isAllowToRenderRowEmptyField = (col: ColumnType) => {
  if (!col) return false

  if (isAI(col)) {
    return true
  }

  if (isAiButton(col)) {
    return true
  }

  return false
}

// Plain cell value
export const getCheckBoxValue = (modelValue: boolean | string | number | '0' | '1') => {
  return !!modelValue && modelValue !== '0' && modelValue !== 0 && modelValue !== 'false'
}

export const getMultiSelectValue = (modelValue: any, params: ParsePlainCellValueProps['params']): string => {
  const { col, isMysql } = params

  if (!modelValue) {
    return ''
  }

  return modelValue
    ? Array.isArray(modelValue)
      ? modelValue.join(', ')
      : modelValue.toString()
    : isMysql(col.source_id)
    ? modelValue.toString().split(',').join(', ')
    : modelValue.split(', ')
}

export const getDateValue = (modelValue: string | null | number, col: ColumnType) => {
  const dateFormat = parseProp(col.meta)?.date_format ?? 'YYYY-MM-DD'

  if (!modelValue) {
    return ''
  } else if (!dayjs(modelValue).isValid()) {
    const parsedDate = parseFlexibleDate(modelValue)
    if (parsedDate) {
      return parsedDate.format(dateFormat) as string
    }
  } else {
    return dayjs(/^\d+$/.test(String(modelValue)) ? +modelValue : modelValue).format(dateFormat)
  }

  return ''
}

export const getYearValue = (modelValue: string | null) => {
  if (!modelValue) {
    return ''
  } else if (!dayjs(modelValue).isValid()) {
    return ''
  } else {
    return dayjs(modelValue.toString(), 'YYYY').format('YYYY')
  }
}

export const getDateTimeValue = (modelValue: string | null, params: ParsePlainCellValueProps['params']) => {
  const { col, isXcdbBase } = params

  if (!modelValue || !dayjs(modelValue).isValid()) {
    return ''
  }

  const columnMeta = parseProp(col.meta)
  const dateFormat = columnMeta?.date_format ?? dateFormats[0]
  const timeFormat = columnMeta?.time_format ?? timeFormats[0]
  const dateTimeFormat = `${dateFormat} ${timeFormat}`
  const timezone = isEeUI && columnMeta?.timezone ? getTimeZoneFromName(columnMeta?.timezone) : undefined
  const { timezonize } = withTimezone(timezone?.name)
  const displayTimezone = timezone && columnMeta?.isDisplayTimezone ? ` (${timezone.abbreviation})` : ''

  const isXcDB = isXcdbBase(col.source_id)

  if (!isXcDB) {
    return timezonize(dayjs(/^\d+$/.test(modelValue) ? +modelValue : modelValue))?.format(dateTimeFormat) + displayTimezone
  }

  return timezonize(dayjs(modelValue))?.format(dateTimeFormat) + displayTimezone
}

export const getTimeValue = (modelValue: string | null, col: ColumnType) => {
  const timeFormat = parseProp(col?.meta)?.is12hrFormat ? 'hh:mm A' : 'HH:mm'

  if (!modelValue) {
    return ''
  }
  let time = dayjs(modelValue)

  if (!time.isValid()) {
    time = dayjs(modelValue, 'HH:mm:ss')
  }
  if (!time.isValid()) {
    time = dayjs(`1999-01-01 ${modelValue}`)
  }
  if (!time.isValid()) {
    return ''
  }

  return time.format(timeFormat)
}

export const getDurationValue = (modelValue: string | null, col: ColumnType) => {
  const durationType = parseProp(col.meta)?.duration || 0
  return convertMS2Duration(modelValue, durationType)
}

export const getPercentValue = (modelValue: string | null) => {
  return modelValue ? `${modelValue}%` : ''
}

export const getCurrencyValue = (modelValue: string | number | null | undefined, col: ColumnType): string => {
  const currencyMeta = {
    currency_locale: 'en-US',
    currency_code: 'USD',
    ...parseProp(col.meta),
  }

  try {
    if (modelValue === null || modelValue === undefined || isNaN(modelValue)) {
      return modelValue === null || modelValue === undefined ? '' : (modelValue as string)
    }
    return new Intl.NumberFormat(currencyMeta.currency_locale || 'en-US', {
      style: 'currency',
      currency: currencyMeta.currency_code || 'USD',
    }).format(+modelValue)
  } catch (e) {
    return modelValue as string
  }
}

export const getUserValue = (modelValue: string | string[] | null | Array<any>, params: ParsePlainCellValueProps['params']) => {
  const { meta, baseUsers: baseUsersMap = new Map() } = params
  if (!modelValue) {
    return ''
  }
  const baseUsers = meta?.base_id ? baseUsersMap.get(meta?.base_id) || [] : []

  if (typeof modelValue === 'string') {
    const idsOrMails = modelValue.split(',')

    return idsOrMails
      .map((idOrMail) => {
        const user = baseUsers.find((u) => u.id === idOrMail || u.email === idOrMail)
        return user ? user.display_name || user.email : idOrMail.id
      })
      .join(', ')
  } else {
    if (Array.isArray(modelValue)) {
      return modelValue
        .map((idOrMail) => {
          const user = baseUsers.find((u) => u.id === idOrMail.id || u.email === idOrMail.email)
          return user ? user.display_name || user.email : idOrMail.id
        })
        .join(', ')
    } else {
      return modelValue ? modelValue.display_name || modelValue.email : ''
    }
  }
}

export const getDecimalValue = (modelValue: string | null | number, col: ColumnType) => {
  if ((!ncIsNumber(modelValue) && !modelValue) || isNaN(Number(modelValue))) {
    return ''
  }
  const columnMeta = parseProp(col.meta)

  return Number(modelValue).toFixed(columnMeta?.precision ?? 1)
}

export const getIntValue = (modelValue: string | null | number) => {
  if ((!ncIsNumber(modelValue) && !modelValue) || isNaN(Number(modelValue))) {
    return ''
  }
  return Number(modelValue).toString()
}

export const getTextAreaValue = (modelValue: string | null, col: ColumnType) => {
  const isRichMode = parseProp(col.meta).richMode
  if (isRichMode) {
    return modelValue?.replace(/[*_~\[\]]|<\/?[^>]+(>|$)/g, '') || ''
  }

  if (isAIPromptCol(col)) {
    return (modelValue as AIRecordType)?.value || ''
  }

  return modelValue || ''
}

export const getRollupValue = (modelValue: string | null | number, params: ParsePlainCellValueProps['params']) => {
  const { col, meta, metas } = params

  const colOptions = col.colOptions as RollupType
  const relationColumnOptions = colOptions.fk_relation_column_id
    ? (meta?.columns?.find((c) => c.id === colOptions.fk_relation_column_id)?.colOptions as LinkToAnotherRecordType)
    : null

  // Use fk_related_base_id for cross-base relationships
  const relatedBaseId = relationColumnOptions?.fk_related_base_id || meta?.base_id
  const relatedTableMeta = relationColumnOptions?.fk_related_model_id
    ? (relatedBaseId ? metas?.[`${relatedBaseId}:${relationColumnOptions.fk_related_model_id}`] : null) ||
      metas?.[relationColumnOptions.fk_related_model_id as string]
    : null

  let childColumn = relatedTableMeta?.columns.find((c: ColumnType) => c.id === colOptions.fk_rollup_column_id) as
    | ColumnType
    | undefined

  if (!childColumn) return modelValue?.toString() ?? ''
  // may use deepClone
  childColumn = { ...childColumn }

  const renderAsTextFun = getRenderAsTextFunForUiType((childColumn.uidt ?? UITypes.SingleLineText) as UITypes)

  childColumn.meta = {
    ...parseProp(childColumn?.meta),
    ...parseProp(col?.meta),
  }

  if (renderAsTextFun.includes(colOptions.rollup_function ?? '')) {
    childColumn.uidt = UITypes.Decimal
  }

  // eslint-disable-next-line @typescript-eslint/no-use-before-define
  return parsePlainCellValue(modelValue, { ...params, col: childColumn }) as string
}

export const getLookupValue = (modelValue: string | null | number | Array<any>, params: ParsePlainCellValueProps['params']) => {
  const { col, meta, metas } = params

  const colOptions = col.colOptions as LookupType
  const relationColumnOptions = colOptions.fk_relation_column_id
    ? (meta?.value ?? meta)?.columns?.find((c) => c.id === colOptions.fk_relation_column_id)?.colOptions
    : col.colOptions

  // Use fk_related_base_id for cross-base relationships
  const relatedBaseId = (relationColumnOptions as LinkToAnotherRecordType)?.fk_related_base_id || (meta?.value ?? meta)?.base_id
  const relatedTableMeta = relationColumnOptions?.fk_related_model_id
    ? (relatedBaseId ? metas?.[`${relatedBaseId}:${relationColumnOptions.fk_related_model_id}`] : null) ||
      metas?.[relationColumnOptions.fk_related_model_id as string]
    : null

  const childColumn = relatedTableMeta?.columns.find(
    (c: ColumnType) => c.id === (colOptions?.fk_lookup_column_id ?? relatedTableMeta?.columns.find((c) => c.pv).id),
  ) as ColumnType | undefined

  // When the value is a record object (from Lookup of LTAR), extract the child column's
  // field value before recursing — otherwise the object reaches a primitive column parser
  // and stringifies as [object Object]
  const resolveRecordValue = (v: any) => {
    if (v && typeof v === 'object' && !Array.isArray(v) && childColumn?.title) {
      return v[childColumn.title] ?? v[childColumn.id] ?? v
    }

    return v
  }

  if (Array.isArray(modelValue)) {
    return modelValue
      .map((v) => {
        // eslint-disable-next-line @typescript-eslint/no-use-before-define
        return parsePlainCellValue(resolveRecordValue(v), { ...params, col: childColumn! })
      })
      .join(', ')
  }

  // when childColumn not found (external base or nested links, simply return the modelValue
  if (!childColumn) {
    if (typeof modelValue === 'string') {
      return modelValue
    } else {
      return modelValue?.toString() ?? ''
    }
  }

  // eslint-disable-next-line @typescript-eslint/no-use-before-define
  return parsePlainCellValue(resolveRecordValue(modelValue), { ...params, col: childColumn })
}

export function getLookupColumnType(
  col: ColumnType,
  meta: { columns: ColumnType[]; base_id?: string },
  metas: Record<string, any>,
  visitedIds = new Set<string>(),
): UITypes | null | undefined {
  return sdkGetLookupColumnType({
    col,
    meta,
    metas,
    baseId: meta.base_id,
    visitedIds,
  })
}

export const getAttachmentValue = (modelValue: string | null | number | Array<any>) => {
  if (Array.isArray(modelValue)) {
    return modelValue.map((v) => `${v.title}`).join(', ')
  }
  return modelValue as string
}

export const getLinksValue = (modelValue: string, params: ParsePlainCellValueProps['params']) => {
  const { col, t } = params

  if (typeof col?.meta === 'string') {
    col.meta = JSON.parse(col.meta)
  }

  const parsedValue = +modelValue || 0
  if (!parsedValue) {
    return `0 ${col?.meta?.plural || t('general.links')}`
  } else if (parsedValue === 1) {
    return `1 ${col?.meta?.singular || t('general.link')}`
  } else {
    return `${parsedValue} ${col?.meta?.plural || t('general.links')}`
  }
}

export const parsePlainCellValue = (
  value: ParsePlainCellValueProps['value'],
  params: ParsePlainCellValueProps['params'],
): string => {
  const { col, abstractType, isUnderLookup } = params

  if (!col) {
    return ''
  }

  if (isGeoData(col)) {
    const [latitude, longitude] = ((value as string) || '').split(';')
    return latitude && longitude ? `${latitude}; ${longitude}` : value
  }
  if (isTextArea(col)) {
    return getTextAreaValue(value, col)
  }
  if (isBoolean(col, abstractType)) {
    return getCheckBoxValue(value) ? 'Checked' : 'Unchecked'
  }
  if (isMultiSelect(col)) {
    return getMultiSelectValue(value, params)
  }
  if (isDate(col, abstractType)) {
    return getDateValue(value, col)
  }
  if (isYear(col, abstractType)) {
    return getYearValue(value)
  }
  if (isDateTime(col, abstractType)) {
    return getDateTimeValue(value, params)
  }
  if (isTime(col, abstractType)) {
    return getTimeValue(value, col)
  }
  if (isDuration(col)) {
    return getDurationValue(value, col)
  }
  if (isPercent(col)) {
    return getPercentValue(value)
  }
  if (isCurrency(col)) {
    return getCurrencyValue(value, col)
  }
  if (isUser(col)) {
    return getUserValue(value, params)
  }
  if (isDecimal(col)) {
    return getDecimalValue(value, col)
  }
  if (isRating(col)) {
    return value ? `${value}` : '0'
  }

  if (isInt(col, abstractType)) {
    return getIntValue(value)
  }
  if (isJSON(col)) {
    try {
      if (isUnderLookup) {
        return typeof value === 'string' ? JSON.stringify(JSON.parse(value)) : JSON.stringify(value)
      } else {
        return JSON.stringify(JSON.parse(value), null, 2)
      }
    } catch {
      return value
    }
  }
  if (isRollup(col)) {
    return getRollupValue(value, params)
  }
  if (isLink(col)) {
    return getLinksValue(value, params)
  }
  if (isLookup(col) || isLTAR(col.uidt, col.colOptions)) {
    return getLookupValue(value, params)
  }
  if (isCreatedOrLastModifiedTimeCol(col)) {
    return getDateTimeValue(value, params)
  }
  if (isCreatedOrLastModifiedByCol(col)) {
    return getUserValue(value, params)
  }
  if (isAttachment(col)) {
    return getAttachmentValue(value)
  }

  if (isFormula(col)) {
    if (col?.meta?.display_type) {
      const childColumn = {
        uidt: col?.meta?.display_type,
        ...col?.meta?.display_column_meta,
      }

      return parsePlainCellValue(value, { ...params, col: childColumn })
    } else {
      const url = replaceUrlsWithLink(value, true)

      if (url && ncIsString(url)) {
        return url
      }
    }
  }

  if (isButton(col)) {
    if ((col.colOptions as ButtonType).type === 'url') return value
    else return col.colOptions?.label
  }

  return value as unknown as string
}

// Utility to stringify filter or sort array, if the array is empty return undefined
export const stringifyFilterOrSortArr = (arr: any[]) => {
  if (!arr || (Array.isArray(arr) && !arr.length)) return undefined

  return JSON.stringify(arr)
}