/*
    * 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.MoneyWiseDepositInfoSet;
  import io.github.tonywasher.joceanus.moneywise.data.basic.MoneyWiseLoanInfoSet;
  import io.github.tonywasher.joceanus.moneywise.data.basic.MoneyWiseRegion;
  import io.github.tonywasher.joceanus.moneywise.data.basic.MoneyWiseRegion.MoneyWiseRegionList;
  import io.github.tonywasher.joceanus.moneywise.data.basic.MoneyWiseSecurity;
  import io.github.tonywasher.joceanus.moneywise.data.basic.MoneyWiseSecurity.MoneyWiseSecurityList;
  import io.github.tonywasher.joceanus.moneywise.data.basic.MoneyWiseSecurityInfo;
  import io.github.tonywasher.joceanus.moneywise.data.basic.MoneyWiseSecurityInfoSet;
  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.MoneyWiseSecurityClass;
  import io.github.tonywasher.joceanus.oceanus.base.OceanusException;
  import io.github.tonywasher.joceanus.oceanus.decimal.OceanusPrice;
  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 SecurityInfoSet.
   */
  public class MoneyWiseValidateSecurityInfoSet
          extends PrometheusValidateInfoSet<MoneyWiseSecurityInfo> {
      /**
       * New Symbol name.
       */
      private static final String NAME_NEWSYMBOL = "SYMBOL";
  
      @Override
      public MoneyWiseSecurity getOwner() {
          return (MoneyWiseSecurity) super.getOwner();
      }
  
      @Override
      public MetisFieldRequired isClassRequired(final PrometheusDataInfoClass pClass) {
          /* Access details about the Security */
          final MoneyWiseSecurity mySec = getOwner();
          final MoneyWiseSecurityClass myType = mySec.getCategoryClass();
  
          /* If we have no Type, no class is allowed */
          if (myType == null) {
              return MetisFieldRequired.NOTALLOWED;
          }
          /* Switch on class */
          return switch ((MoneyWiseAccountInfoClass) pClass) {
              /* Allowed set */
              case NOTES -> MetisFieldRequired.CANEXIST;
  
              /* Symbol */
              case SYMBOL -> myType.needsSymbol()
                      ? MetisFieldRequired.MUSTEXIST
                      : MetisFieldRequired.NOTALLOWED;
  
              /* Region */
              case REGION -> myType.needsRegion()
                      ? MetisFieldRequired.MUSTEXIST
                      : MetisFieldRequired.NOTALLOWED;
  
              /* Options */
              case UNDERLYINGSTOCK, OPTIONPRICE -> myType.isOption()
                      ? MetisFieldRequired.MUSTEXIST
                      : MetisFieldRequired.NOTALLOWED;
  
              /* Not Allowed */
              default -> MetisFieldRequired.NOTALLOWED;
          };
      }
  
      @Override
      public void validateClass(final MoneyWiseSecurityInfo pInfo,
                                final PrometheusDataInfoClass pClass) {
          /* Switch on class */
          switch ((MoneyWiseAccountInfoClass) pClass) {
              case NOTES:
                  validateNotes(pInfo);
                  break;
              case SYMBOL:
                 validateSymbol(pInfo);
                 break;
             case UNDERLYINGSTOCK:
                 validateUnderlyingStock(pInfo);
                 break;
             case OPTIONPRICE:
                 validateOptionPrice(pInfo);
                 break;
             default:
                 break;
         }
     }
 
     /**
      * Validate the Notes info.
      *
      * @param pInfo the info
      */
     private void validateNotes(final MoneyWiseSecurityInfo pInfo) {
         final char[] myArray = pInfo.getValue(char[].class);
         if (myArray.length > MoneyWiseAccountInfoClass.NOTES.getMaximumLength()) {
             getOwner().addError(PrometheusDataItem.ERROR_LENGTH, MoneyWiseSecurityInfoSet.getFieldForClass(MoneyWiseAccountInfoClass.NOTES));
         }
     }
 
     /**
      * Validate the Symbol info.
      *
      * @param pInfo the info
      */
     private void validateSymbol(final MoneyWiseSecurityInfo pInfo) {
         final String mySymbol = pInfo.getValue(String.class);
         if (mySymbol.length() > MoneyWiseAccountInfoClass.SYMBOL.getMaximumLength()) {
             getOwner().addError(PrometheusDataItem.ERROR_LENGTH, MoneyWiseSecurityInfoSet.getFieldForClass(MoneyWiseAccountInfoClass.SYMBOL));
         }
     }
 
     /**
      * Validate the UnderlyingStock info.
      *
      * @param pInfo the info
      */
     private void validateUnderlyingStock(final MoneyWiseSecurityInfo pInfo) {
         final MoneyWiseSecurity myStock = pInfo.getValue(MoneyWiseSecurity.class);
         if (!myStock.getCategoryClass().isShares()) {
             getOwner().addError("Invalid underlying stock", MoneyWiseSecurityInfoSet.getFieldForClass(MoneyWiseAccountInfoClass.UNDERLYINGSTOCK));
         }
         if (!myStock.getCurrency().equals(getOwner().getCurrency())) {
             getOwner().addError(MoneyWiseDepositInfoSet.ERROR_CURRENCY, MoneyWiseLoanInfoSet.getFieldForClass(MoneyWiseAccountInfoClass.UNDERLYINGSTOCK));
         }
     }
 
     /**
      * Validate the OptionPrice info.
      *
      * @param pInfo the info
      */
     private void validateOptionPrice(final MoneyWiseSecurityInfo pInfo) {
         final OceanusPrice myPrice = pInfo.getValue(OceanusPrice.class);
         if (myPrice.isZero()) {
             getOwner().addError(PrometheusDataItem.ERROR_ZERO, MoneyWiseSecurityInfoSet.getFieldForClass(MoneyWiseAccountInfoClass.OPTIONPRICE));
         } else if (!myPrice.isPositive()) {
             getOwner().addError(PrometheusDataItem.ERROR_NEGATIVE, MoneyWiseSecurityInfoSet.getFieldForClass(MoneyWiseAccountInfoClass.OPTIONPRICE));
         }
         if (!myPrice.getCurrency().equals(getOwner().getCurrency())) {
             getOwner().addError(MoneyWiseDepositInfoSet.ERROR_CURRENCY, MoneyWiseLoanInfoSet.getFieldForClass(MoneyWiseAccountInfoClass.OPTIONPRICE));
         }
     }
 
     @Override
     protected void setDefault(final PrometheusDataInfoClass pClass) throws OceanusException {
         /* Switch on the class */
         switch ((MoneyWiseAccountInfoClass) pClass) {
             case SYMBOL:
                 getInfoSet().setValue(pClass, getUniqueSymbol());
                 break;
             case REGION:
                 getInfoSet().setValue(pClass, getDefaultRegion());
                 break;
             case UNDERLYINGSTOCK:
                 getInfoSet().setValue(pClass, getDefaultUnderlyingStock());
                 break;
             case OPTIONPRICE:
                 getInfoSet().setValue(pClass, getDefaultOptionPrice());
                 break;
             default:
                 break;
         }
     }
 
     /**
      * Obtain unique symbol for new tag.
      *
      * @return The new symbol
      */
     private String getUniqueSymbol() {
         /* Access the security list */
         final MoneyWiseSecurityList mySecurities = getOwner().getList();
 
         /* Set up base constraints */
         final String myBase = NAME_NEWSYMBOL;
         int iNextId = 1;
 
         /* Loop until we found a symbol */
         String mySymbol = myBase;
         while (true) {
             /* try out the symbol */
             if (mySecurities.findItemBySymbol(mySymbol) == null) {
                 return mySymbol;
             }
 
             /* Build next symbol */
             mySymbol = myBase.concat(Integer.toString(iNextId++));
         }
     }
 
     /**
      * Obtain default region for security.
      *
      * @return the default region
      */
     private MoneyWiseRegion getDefaultRegion() {
         /* Access the region list */
         final MoneyWiseRegionList myRegions
                 = getEditSet().getDataList(MoneyWiseBasicDataType.REGION, MoneyWiseRegionList.class);
 
         /* loop through the regions */
         final Iterator<MoneyWiseRegion> myIterator = myRegions.iterator();
         while (myIterator.hasNext()) {
             final MoneyWiseRegion myRegion = myIterator.next();
 
             /* Return first non-deleted region */
             if (!myRegion.isDeleted()) {
                 return myRegion;
             }
         }
 
         /* Return no region */
         return null;
     }
 
     /**
      * Obtain default underlying stock.
      *
      * @return the default underlying stock
      */
     private MoneyWiseSecurity getDefaultUnderlyingStock() {
         /* Access the security list */
         final MoneyWiseSecurityList mySecurities = getOwner().getList();
 
         /* loop through the securities */
         final Iterator<MoneyWiseSecurity> myIterator = mySecurities.iterator();
         while (myIterator.hasNext()) {
             final MoneyWiseSecurity mySecurity = myIterator.next();
 
             /* Ignore deleted securities */
             if (mySecurity.isDeleted()) {
                 continue;
             }
 
             /* Ignore securities that are the wrong class */
             if (mySecurity.getCategoryClass().isShares()) {
                 return mySecurity;
             }
         }
 
         /* Return no security */
         return null;
     }
 
     /**
      * Obtain default option price.
      *
      * @return the default underlying stock
      */
     private OceanusPrice getDefaultOptionPrice() {
         /* Obtain the underlying stock */
         final MoneyWiseSecurity myUnderlying = getOwner().getUnderlyingStock();
 
         /* If there is no underlying stock, then there is no price */
         if (myUnderlying == null) {
             return null;
         }
 
         final MoneyWiseCurrency myCurrency = myUnderlying.getAssetCurrency();
         return OceanusPrice.getWholeUnits(1, myCurrency.getCurrency());
     }
 
     @Override
     protected void autoCorrect(final PrometheusDataInfoClass pClass) throws OceanusException {
         /* Switch on class */
         switch ((MoneyWiseAccountInfoClass) pClass) {
             case UNDERLYINGSTOCK:
                 autoCorrectUnderlyingStock();
                 break;
             case OPTIONPRICE:
                 autoCorrectOptionPrice();
                 break;
             default:
                 break;
         }
     }
 
     /**
      * AutoCorrect underlying stock.
      *
      * @throws OceanusException on error
      */
     private void autoCorrectUnderlyingStock() throws OceanusException {
         /* Obtain the existing value */
         MoneyWiseSecurity myStock = getOwner().getUnderlyingStock();
 
         /* If the stock is not the correct currency */
         if (!myStock.getCurrency().equals(getOwner().getCurrency())) {
             /* Reset to new default */
             myStock = getDefaultUnderlyingStock();
             getInfoSet().setValue(MoneyWiseAccountInfoClass.UNDERLYINGSTOCK, myStock);
         }
     }
 
     /**
      * AutoCorrect option price.
      *
      * @throws OceanusException on error
      */
     private void autoCorrectOptionPrice() throws OceanusException {
         /* Obtain the existing value */
         OceanusPrice myPrice = getOwner().getOptionPrice();
         final MoneyWiseCurrency myAssetCurrency = getOwner().getAssetCurrency();
         final Currency myCurrency = myAssetCurrency.getCurrency();
 
         /* If the price is not the correct currency */
         if (!myPrice.getCurrency().equals(myCurrency)) {
             myPrice = myPrice.changeCurrency(myCurrency);
             getInfoSet().setValue(MoneyWiseAccountInfoClass.OPTIONPRICE, myPrice);
         }
     }
 }