/*
    * MoneyWise: Finance Application
    * Copyright 2012-2026. Tony Washer
    *
    * Licensed under the Apache License, Version 2.0 (the "License"); you may not
    * use this file except in compliance with the License.  You may obtain a copy
    * of the License at
    *
    *   http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
   * License for the specific language governing permissions and limitations under
   * the License.
   */
  package io.github.tonywasher.joceanus.moneywise.data.validate;
  
  import io.github.tonywasher.joceanus.metis.field.MetisFieldRequired;
  import io.github.tonywasher.joceanus.moneywise.data.basic.MoneyWiseBasicDataType;
  import io.github.tonywasher.joceanus.moneywise.data.basic.MoneyWiseCash;
  import io.github.tonywasher.joceanus.moneywise.data.basic.MoneyWiseCashCategory;
  import io.github.tonywasher.joceanus.moneywise.data.basic.MoneyWiseCashInfo;
  import io.github.tonywasher.joceanus.moneywise.data.basic.MoneyWiseCashInfoSet;
  import io.github.tonywasher.joceanus.moneywise.data.basic.MoneyWiseDepositInfoSet;
  import io.github.tonywasher.joceanus.moneywise.data.basic.MoneyWisePayee;
  import io.github.tonywasher.joceanus.moneywise.data.basic.MoneyWisePayee.MoneyWisePayeeList;
  import io.github.tonywasher.joceanus.moneywise.data.basic.MoneyWiseTransCategory;
  import io.github.tonywasher.joceanus.moneywise.data.basic.MoneyWiseTransCategory.MoneyWiseTransCategoryList;
  import io.github.tonywasher.joceanus.moneywise.data.statics.MoneyWiseAccountInfoClass;
  import io.github.tonywasher.joceanus.moneywise.data.statics.MoneyWiseCurrency;
  import io.github.tonywasher.joceanus.moneywise.data.statics.MoneyWiseTransCategoryClass;
  import io.github.tonywasher.joceanus.oceanus.base.OceanusException;
  import io.github.tonywasher.joceanus.oceanus.decimal.OceanusMoney;
  import io.github.tonywasher.joceanus.prometheus.data.PrometheusDataInfoClass;
  import io.github.tonywasher.joceanus.prometheus.data.PrometheusDataItem;
  import io.github.tonywasher.joceanus.prometheus.validate.PrometheusValidateInfoSet;
  
  import java.util.Currency;
  import java.util.Iterator;
  
  /**
   * Validate CashInfoSet.
   */
  public class MoneyWiseValidateCashInfoSet
          extends PrometheusValidateInfoSet<MoneyWiseCashInfo> {
      /**
       * ClosedPayee Error string.
       */
      private static final String ERROR_PAYEECLOSED = "AutoPayee is closed for non-closed autoCash";
  
      @Override
      public MoneyWiseCash getOwner() {
          return (MoneyWiseCash) super.getOwner();
      }
  
      @Override
      public MoneyWiseCashInfoSet getInfoSet() {
          return (MoneyWiseCashInfoSet) super.getInfoSet();
      }
  
      @Override
      public MetisFieldRequired isClassRequired(final PrometheusDataInfoClass pClass) {
          /* Access details about the Cash */
          final MoneyWiseCash myCash = getOwner();
          final MoneyWiseCashCategory myCategory = myCash.getCategory();
  
          /* If we have no Category, no class is allowed */
          if (myCategory == null) {
              return MetisFieldRequired.NOTALLOWED;
          }
  
          /* Switch on class */
          return switch ((MoneyWiseAccountInfoClass) pClass) {
              /* Allowed set */
              case NOTES -> MetisFieldRequired.CANEXIST;
              case OPENINGBALANCE -> myCash.isAutoExpense()
                      ? MetisFieldRequired.NOTALLOWED
                      : MetisFieldRequired.CANEXIST;
              case AUTOPAYEE, AUTOEXPENSE -> myCash.isAutoExpense()
                      ? MetisFieldRequired.MUSTEXIST
                      : MetisFieldRequired.NOTALLOWED;
  
              /* Disallowed Set */
              default -> MetisFieldRequired.NOTALLOWED;
          };
      }
  
      @Override
      public void validateClass(final MoneyWiseCashInfo pInfo,
                                final PrometheusDataInfoClass pClass) {
          /* Switch on class */
          switch ((MoneyWiseAccountInfoClass) pClass) {
              case OPENINGBALANCE:
                  validateOpeningBalance(pInfo);
                  break;
              case AUTOEXPENSE:
                  validateAutoExpense(pInfo);
                  break;
             case AUTOPAYEE:
                 validateAutoPayee(pInfo);
                 break;
             case NOTES:
                 validateNotes(pInfo);
                 break;
             default:
                 break;
         }
     }
 
     /**
      * Validate the opening balance.
      *
      * @param pInfo the info
      */
     private void validateOpeningBalance(final MoneyWiseCashInfo pInfo) {
         final OceanusMoney myBalance = pInfo.getValue(OceanusMoney.class);
         if (!myBalance.getCurrency().equals(getOwner().getCurrency())) {
             getOwner().addError(MoneyWiseDepositInfoSet.ERROR_CURRENCY, MoneyWiseCashInfoSet.getFieldForClass(MoneyWiseAccountInfoClass.OPENINGBALANCE));
         }
     }
 
     /**
      * Validate the autoExpense info.
      *
      * @param pInfo the info
      */
     private void validateAutoExpense(final MoneyWiseCashInfo pInfo) {
         final MoneyWiseTransCategory myExpense = pInfo.getEventCategory();
         final MoneyWiseTransCategoryClass myCatClass = myExpense.getCategoryTypeClass();
         if (!myCatClass.isExpense() || myCatClass.canParentCategory()) {
             getOwner().addError(MoneyWiseCashInfoSet.ERROR_AUTOEXP, MoneyWiseCashInfoSet.getFieldForClass(MoneyWiseAccountInfoClass.AUTOEXPENSE));
         }
     }
 
     /**
      * Validate the autoPayee info.
      *
      * @param pInfo the info
      */
     private void validateAutoPayee(final MoneyWiseCashInfo pInfo) {
         final MoneyWisePayee myPayee = pInfo.getPayee();
         if (myPayee.isClosed() && !getOwner().isClosed()) {
             getOwner().addError(ERROR_PAYEECLOSED, MoneyWiseCashInfoSet.getFieldForClass(MoneyWiseAccountInfoClass.AUTOPAYEE));
         }
     }
 
     /**
      * Validate the Notes info.
      *
      * @param pInfo the info
      */
     private void validateNotes(final MoneyWiseCashInfo pInfo) {
         final char[] myArray = pInfo.getValue(char[].class);
         if (myArray.length > MoneyWiseAccountInfoClass.NOTES.getMaximumLength()) {
             getOwner().addError(PrometheusDataItem.ERROR_LENGTH, MoneyWiseCashInfoSet.getFieldForClass(MoneyWiseAccountInfoClass.NOTES));
         }
     }
 
     @Override
     protected void setDefault(final PrometheusDataInfoClass pClass) throws OceanusException {
         /* Switch on the class */
         switch ((MoneyWiseAccountInfoClass) pClass) {
             case AUTOEXPENSE:
                 getInfoSet().setValue(pClass, getDefaultAutoExpense());
                 break;
             case AUTOPAYEE:
                 getInfoSet().setValue(pClass, getDefaultAutoPayee());
                 break;
             default:
                 break;
         }
     }
 
     /**
      * Obtain default expense for autoExpense cash.
      *
      * @return the default expense
      */
     private MoneyWiseTransCategory getDefaultAutoExpense() {
         /* Access the category list */
         final MoneyWiseTransCategoryList myCategories
                 = getEditSet().getDataList(MoneyWiseBasicDataType.TRANSCATEGORY, MoneyWiseTransCategoryList.class);
 
         /* loop through the categories */
         final Iterator<MoneyWiseTransCategory> myIterator = myCategories.iterator();
         while (myIterator.hasNext()) {
             final MoneyWiseTransCategory myCategory = myIterator.next();
 
             /* Ignore deleted categories */
             if (myCategory.isDeleted()) {
                 continue;
             }
 
             /* Ignore categories that are the wrong class */
             final MoneyWiseTransCategoryClass myCatClass = myCategory.getCategoryTypeClass();
             if (myCatClass.isExpense() && !myCatClass.canParentCategory()) {
                 return myCategory;
             }
         }
 
         /* Return no category */
         return null;
     }
 
     /**
      * Obtain default payee for autoExpense cash.
      *
      * @return the default payee
      */
     private MoneyWisePayee getDefaultAutoPayee() {
         /* Access the payee list */
         final MoneyWisePayeeList myPayees
                 = getEditSet().getDataList(MoneyWiseBasicDataType.PAYEE, MoneyWisePayeeList.class);
 
         /* loop through the payees */
         final Iterator<MoneyWisePayee> myIterator = myPayees.iterator();
         while (myIterator.hasNext()) {
             final MoneyWisePayee myPayee = myIterator.next();
 
             /* Ignore deleted and closed payees */
             if (!myPayee.isDeleted() && Boolean.TRUE.equals(!myPayee.isClosed())) {
                 return myPayee;
             }
         }
 
         /* Return no payee */
         return null;
     }
 
     @Override
     protected void autoCorrect(final PrometheusDataInfoClass pClass) throws OceanusException {
         /* If the info is Opening balance */
         if (MoneyWiseAccountInfoClass.OPENINGBALANCE.equals(pClass)) {
             /* Access the value */
             final MoneyWiseCash myOwner = getOwner();
             OceanusMoney myOpening = myOwner.getOpeningBalance();
             final MoneyWiseCurrency myAssetCurrency = myOwner.getAssetCurrency();
             final Currency myCurrency = myAssetCurrency.getCurrency();
 
             /* If we need to change currency */
             if (!myCurrency.equals(myOpening.getCurrency())) {
                 myOpening = myOpening.changeCurrency(myCurrency);
                 getInfoSet().setValue(pClass, myOpening);
             }
         }
     }
 }