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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 controllers.land |
| 18 | + |
| 19 | +import connectors.StampDutyLandTaxConnector |
| 20 | +import controllers.actions.* |
| 21 | +import models.land.{CreateLandRequest, LandSessionQuestions, LandTypeOfProperty, UpdateLandRequest} |
| 22 | +import models.{CreateReturnAgentRequest, Land, ReturnVersionUpdateRequest, UpdateReturnAgentRequest, UserAnswers} |
| 23 | +import pages.land.LandTypeOfPropertyPage |
| 24 | +import pages.purchaserAgent.PurchaserAgentOverviewPage |
| 25 | +import play.api.i18n.{I18nSupport, MessagesApi} |
| 26 | +import play.api.libs.json.{JsError, JsSuccess} |
| 27 | +import play.api.mvc.* |
| 28 | +import repositories.SessionRepository |
| 29 | +import uk.gov.hmrc.http.HeaderCarrier |
| 30 | +import uk.gov.hmrc.play.bootstrap.frontend.controller.FrontendBaseController |
| 31 | +import viewmodels.checkAnswers.land.* |
| 32 | +import viewmodels.govuk.all.SummaryListViewModel |
| 33 | +import views.html.land.LandCheckYourAnswersView |
| 34 | + |
| 35 | +import javax.inject.Inject |
| 36 | +import scala.concurrent.{ExecutionContext, Future} |
| 37 | + |
| 38 | +class LandCheckYourAnswersController @Inject()( |
| 39 | + override val messagesApi: MessagesApi, |
| 40 | + identify: IdentifierAction, |
| 41 | + getData: DataRetrievalAction, |
| 42 | + requireData: DataRequiredAction, |
| 43 | + sessionRepository: SessionRepository, |
| 44 | + backendConnector: StampDutyLandTaxConnector, |
| 45 | + val controllerComponents: MessagesControllerComponents, |
| 46 | + view: LandCheckYourAnswersView |
| 47 | + )(implicit ex: ExecutionContext) extends FrontendBaseController with I18nSupport { |
| 48 | + |
| 49 | + |
| 50 | + def onPageLoad: Action[AnyContent] = (identify andThen getData andThen requireData).async { |
| 51 | + implicit request => |
| 52 | + for { |
| 53 | + result <- sessionRepository.get(request.userAnswers.id) |
| 54 | + } yield { |
| 55 | + |
| 56 | + val isDataEmpty = result.exists(_.data.value.isEmpty) |
| 57 | + |
| 58 | + if (isDataEmpty) { |
| 59 | + Redirect(controllers.land.routes.LandBeforeYouStartController.onPageLoad()) |
| 60 | + } else { |
| 61 | + val summaryList = SummaryListViewModel( |
| 62 | + rows = Seq( |
| 63 | + Some(LandTypeOfPropertySummary.row(request.userAnswers)), |
| 64 | + Some(LandInterestTransferredOrCreatedSummary.row(request.userAnswers)), |
| 65 | + Some(LandAddressSummary.row(request.userAnswers)), |
| 66 | + Some(LocalAuthorityCodeSummary.row(request.userAnswers)), |
| 67 | + Some(LandRegisteredHmRegistrySummary.row(request.userAnswers)), |
| 68 | + LandTitleNumberSummary.row(request.userAnswers), |
| 69 | + Some(LandAddNlpgUprnSummary.row(request.userAnswers)), |
| 70 | + LandNlpgUprnSummary.row(request.userAnswers), |
| 71 | + Some(LandSendingPlanByPostSummary.row(request.userAnswers)), |
| 72 | + Some(LandMineralsOrMineralRightsSummary.row(request.userAnswers)), |
| 73 | + if (propertyTypeCheck(request.userAnswers)) AgriculturalOrDevelopmentalLandSummary.row(request.userAnswers) else None, |
| 74 | + if (propertyTypeCheck(request.userAnswers)) DoYouKnowTheAreaOfLandSummary.row(request.userAnswers) else None, |
| 75 | + if (propertyTypeCheck(request.userAnswers)) AreaOfLandSummary.row(request.userAnswers) else None |
| 76 | + ).flatten |
| 77 | + ) |
| 78 | + |
| 79 | + Ok(view(summaryList)) |
| 80 | + } |
| 81 | + } |
| 82 | + } |
| 83 | + |
| 84 | + def onSubmit(): Action[AnyContent] = (identify andThen getData andThen requireData).async { implicit request => |
| 85 | + |
| 86 | + sessionRepository.get(request.userAnswers.id).flatMap { |
| 87 | + case Some(userAnswers) => |
| 88 | + (userAnswers.data \ "LandCurrent").validate[LandSessionQuestions] match { |
| 89 | + case JsSuccess(sessionData, _) => |
| 90 | + request.userAnswers.get(PurchaserAgentOverviewPage).map { returnAgentId => |
| 91 | + updateLand(userAnswers) |
| 92 | + }.getOrElse(createLand(userAnswers)) |
| 93 | + |
| 94 | + case JsError(_) => |
| 95 | + Future.successful( |
| 96 | + Redirect(controllers.land.routes.LandCheckYourAnswersController.onPageLoad()) |
| 97 | + ) |
| 98 | + } |
| 99 | + |
| 100 | + case None => |
| 101 | + Future.successful(Redirect(controllers.routes.JourneyRecoveryController.onPageLoad())) |
| 102 | + } |
| 103 | + } |
| 104 | + |
| 105 | + private def updateLand(userAnswers: UserAnswers)(implicit hc: HeaderCarrier, request: Request[_]): Future[Result] = { |
| 106 | + for { |
| 107 | + land <- Land.from(userAnswers) |
| 108 | + updateReturnVersionRequest <- ReturnVersionUpdateRequest.from(userAnswers) |
| 109 | + updateReturnVersionReturn <- backendConnector.updateReturnVersion(updateReturnVersionRequest) |
| 110 | + updateLandRequest <- UpdateLandRequest.from(userAnswers, land) if updateReturnVersionReturn.newVersion.isDefined |
| 111 | + updateLandReturn <- backendConnector.updateLand(updateLandRequest) if updateReturnVersionReturn.newVersion.isDefined |
| 112 | + } yield { |
| 113 | + if (updateLandReturn.updated) { |
| 114 | + Redirect(controllers.vendor.routes.VendorOverviewController.onPageLoad()) |
| 115 | + .flashing("landUpdated" -> FullName.fullName(updateLandRequest.forename1, updateVendorRequest.forename2, updateVendorRequest.name)) |
| 116 | + } else { |
| 117 | + Redirect(controllers.land.routes.LandCheckYourAnswersController.onPageLoad()) |
| 118 | + } |
| 119 | + } |
| 120 | + } |
| 121 | + |
| 122 | + private def createLand(userAnswers: UserAnswers)(implicit hc: HeaderCarrier, request: Request[_]): Future[Result] = { |
| 123 | + for { |
| 124 | + land <- Land.from(userAnswers) |
| 125 | + createLandRequest <- CreateLandRequest.from(userAnswers, land) |
| 126 | + createLandReturn <- backendConnector.createLand(createLandRequest) |
| 127 | + } yield { |
| 128 | + if (createLandReturn.landId.nonEmpty) { |
| 129 | + Redirect(controllers.vendor.routes.VendorOverviewController.onPageLoad()) |
| 130 | + .flashing("LandCreated" -> FullName.fullName(createVendorRequest.forename1, createVendorRequest.forename2, createVendorRequest.name)) |
| 131 | + } else { |
| 132 | + Redirect(controllers.land.routes.LandCheckYourAnswersController.onPageLoad()) |
| 133 | + } |
| 134 | + } |
| 135 | + } |
| 136 | + |
| 137 | + private def propertyTypeCheck(userAnswers: UserAnswers): Boolean = { |
| 138 | + userAnswers.get(LandTypeOfPropertyPage) match { |
| 139 | + case Some(LandTypeOfProperty.Mixed | LandTypeOfProperty.NonResidential) => true |
| 140 | + case _ => false |
| 141 | + } |
| 142 | + } |
| 143 | +} |
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