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| 1 | +/* |
| 2 | + * Copyright 2026 HM Revenue & Customs |
| 3 | + * |
| 4 | + * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | + * you may not use this file except in compliance with the License. |
| 6 | + * You may obtain a copy of the License at |
| 7 | + * |
| 8 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | + * |
| 10 | + * Unless required by applicable law or agreed to in writing, software |
| 11 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | + * See the License for the specific language governing permissions and |
| 14 | + * limitations under the License. |
| 15 | + */ |
| 16 | + |
| 17 | +package models.add.partnership |
| 18 | + |
| 19 | +import models.add.{InternationalAddress, TypeOfSubcontractor} |
| 20 | +import models.contact.ContactOptions |
| 21 | +import models.contact.ContactOptions.* |
| 22 | +import models.{InvalidAnswer, MissingAnswer, UserAnswers, Validation, ValidationError} |
| 23 | +import pages.QuestionPage |
| 24 | +import pages.add.TypeOfSubcontractorPage |
| 25 | +import pages.add.partnership.* |
| 26 | +import play.api.libs.json.* |
| 27 | + |
| 28 | +final case class ValidatedPartnership( |
| 29 | + partnershipName: String, |
| 30 | + partnershipAddress: Option[InternationalAddress], |
| 31 | + partnershipContactDetails: ContactOptions, |
| 32 | + partnershipEmail: Option[String], |
| 33 | + partnershipPhone: Option[String], |
| 34 | + partnershipMobile: Option[String], |
| 35 | + partnershipUtr: Option[String], |
| 36 | + partnershipNominatedPartnerName: String, |
| 37 | + partnershipNominatedPartnerUtr: Option[String], |
| 38 | + partnershipNominatedPartnerNino: Option[String], |
| 39 | + partnershipNominatedPartnerCrn: Option[String], |
| 40 | + partnershipWorkRefNumber: Option[String] |
| 41 | +) |
| 42 | + |
| 43 | +object ValidatedPartnership extends Validation { |
| 44 | + def build(answers: UserAnswers): Either[ValidationError, ValidatedPartnership] = |
| 45 | + for { |
| 46 | + _ <- validateType(answers) |
| 47 | + partnershipName <- getPageValue(answers, PartnershipNamePage) |
| 48 | + partnershipAddress <- getOptionalPageValue(answers, PartnershipAddressPage, PartnershipAddressYesNoPage) |
| 49 | + partnershipContactDetails <- getPageValue(answers, PartnershipChooseContactDetailsPage) |
| 50 | + partnershipEmail <- getContactPageValue(answers, PartnershipEmailAddressPage, partnershipContactDetails) |
| 51 | + partnershipPhone <- getContactPageValue(answers, PartnershipPhoneNumberPage, partnershipContactDetails) |
| 52 | + partnershipMobile <- getContactPageValue(answers, PartnershipMobileNumberPage, partnershipContactDetails) |
| 53 | + partnershipUtr <- |
| 54 | + getOptionalPageValue(answers, PartnershipUniqueTaxpayerReferencePage, PartnershipHasUtrYesNoPage) |
| 55 | + partnershipNominatedPartnerName <- getPageValue(answers, PartnershipNominatedPartnerNamePage) |
| 56 | + partnershipNominatedPartnerUtr <- |
| 57 | + getOptionalPageValue(answers, PartnershipNominatedPartnerUtrPage, PartnershipNominatedPartnerUtrYesNoPage) |
| 58 | + partnershipNominatedPartnerNino <- |
| 59 | + getOptionalPageValue(answers, PartnershipNominatedPartnerNinoPage, PartnershipNominatedPartnerNinoYesNoPage) |
| 60 | + partnershipNominatedPartnerCrn <- |
| 61 | + getOptionalPageValue(answers, PartnershipNominatedPartnerCrnPage, PartnershipNominatedPartnerCrnYesNoPage) |
| 62 | + partnershipWorkRefNumber <- |
| 63 | + getOptionalPageValue(answers, PartnershipWorksReferenceNumberPage, PartnershipWorksReferenceNumberYesNoPage) |
| 64 | + |
| 65 | + } yield ValidatedPartnership( |
| 66 | + partnershipName, |
| 67 | + partnershipAddress, |
| 68 | + partnershipContactDetails, |
| 69 | + partnershipEmail, |
| 70 | + partnershipPhone, |
| 71 | + partnershipMobile, |
| 72 | + partnershipUtr, |
| 73 | + partnershipNominatedPartnerName, |
| 74 | + partnershipNominatedPartnerUtr, |
| 75 | + partnershipNominatedPartnerNino, |
| 76 | + partnershipNominatedPartnerCrn, |
| 77 | + partnershipWorkRefNumber |
| 78 | + ) |
| 79 | + |
| 80 | + private def validateType(answers: UserAnswers): Either[ValidationError, Unit] = |
| 81 | + getPageValue(answers, TypeOfSubcontractorPage).flatMap { |
| 82 | + case TypeOfSubcontractor.Partnership => Right(()) |
| 83 | + case _ => Left(InvalidAnswer(TypeOfSubcontractorPage)) |
| 84 | + } |
| 85 | + |
| 86 | + private def getContactPageValue[A]( |
| 87 | + answers: UserAnswers, |
| 88 | + questionPage: QuestionPage[A], |
| 89 | + contactOptions: ContactOptions |
| 90 | + )(implicit reads: Reads[A]): Either[ValidationError, Option[A]] = { |
| 91 | + val expectedPage: Option[QuestionPage[_]] = contactOptions match { |
| 92 | + case Email => Some(PartnershipEmailAddressPage) |
| 93 | + case Phone => Some(PartnershipPhoneNumberPage) |
| 94 | + case Mobile => Some(PartnershipMobileNumberPage) |
| 95 | + case NoDetails => None |
| 96 | + } |
| 97 | + |
| 98 | + if (expectedPage.contains(questionPage)) { |
| 99 | + answers.get(questionPage).toRight(MissingAnswer(questionPage)).map(Some(_)) |
| 100 | + } else if (expectedPage.isDefined) { |
| 101 | + Right(None) |
| 102 | + } else { |
| 103 | + answers |
| 104 | + .get(questionPage) |
| 105 | + .fold(Right(None): Either[ValidationError, Option[A]])(_ => Left(InvalidAnswer(questionPage))) |
| 106 | + } |
| 107 | + } |
| 108 | + |
| 109 | +} |
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