import { FiatAccountSchema, FiatAccountType } from '@fiatconnect/fiatconnect-types'
import { getObfuscatedAccountNumber } from 'src/fiatconnect'
import { INSTITUTION_NAME_FIELD } from 'src/fiatconnect/fiatAccountSchemas'
import { FiatAccountFormSchema } from 'src/fiatconnect/fiatAccountSchemas/types'
import { FiatAccountSchemaCountryOverrides } from 'src/fiatconnect/types'
import i18n from 'src/i18n'

export const getAccountNumberSchema = (
  implicitParams: {
    country: string
    fiatAccountType: FiatAccountType
  },
  countryOverrides?: FiatAccountSchemaCountryOverrides
): FiatAccountFormSchema<FiatAccountSchema.AccountNumber> => {
  // NOTE: the schema for overrides supports overriding any field's regex or
  // errorMessage, but the below currently applies it to just the
  // `accountNumber` field in the `AccountNumber` schema.
  // This can be extended to support overriding other params and applied more
  // generically if more fields/schemas require it.
  const overrides = countryOverrides?.[implicitParams.country]?.[FiatAccountSchema.AccountNumber]
  const accountNumberValidator = (input: string) => {
    const regex = overrides?.accountNumber?.regex
      ? new RegExp(overrides.accountNumber.regex)
      : /^[0-9]+$/
    const isValid = regex.test(input)
    const errorMessageText = overrides?.accountNumber?.errorString
      ? i18n.t(
          `fiatAccountSchema.accountNumber.${overrides.accountNumber.errorString}`,
          overrides.accountNumber.errorParams
        )
      : i18n.t('fiatAccountSchema.accountNumber.errorMessageDigit')
    return {
      isValid,
      errorMessage: isValid ? undefined : errorMessageText,
    }
  }

  return {
    institutionName: INSTITUTION_NAME_FIELD,
    accountNumber: {
      name: 'accountNumber',
      label: i18n.t('fiatAccountSchema.accountNumber.label'),
      validate: accountNumberValidator,
      placeholderText: i18n.t('fiatAccountSchema.accountNumber.placeholderText'),
      keyboardType: 'number-pad',
    },
    country: { name: 'country', value: implicitParams.country },
    fiatAccountType: { name: 'fiatAccountType', value: FiatAccountType.BankAccount },
    accountName: {
      name: 'accountName',
      computeValue: ({ institutionName, accountNumber }) =>
        `${institutionName} (${getObfuscatedAccountNumber(accountNumber!)})`,
    },
  }
}