/*
    * Prometheus: Application Framework
    * 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.prometheus.maps;
  
  import io.github.tonywasher.joceanus.metis.data.MetisDataItem.MetisDataFieldId;
  import io.github.tonywasher.joceanus.metis.field.MetisFieldItem;
  import io.github.tonywasher.joceanus.metis.field.MetisFieldSet;
  import io.github.tonywasher.joceanus.metis.list.MetisListKey;
  import io.github.tonywasher.joceanus.oceanus.format.OceanusDataFormatter;
  import io.github.tonywasher.joceanus.prometheus.data.PrometheusDataItem;
  
  import java.util.LinkedHashMap;
  import java.util.Map;
  import java.util.function.Function;
  
  /**
   * InstanceMaps for DataSet.
   */
  public class PrometheusMapsDataSetInstance
          implements MetisFieldItem, PrometheusMapsListHolder {
      /**
       * Report fields.
       */
      private static final MetisFieldSet<PrometheusMapsDataSetInstance> FIELD_DEFS
              = MetisFieldSet.newFieldSet(PrometheusMapsDataSetInstance.class);
  
      /*
       * Declare Fields.
       */
      static {
          FIELD_DEFS.declareLocalField(PrometheusMapsResource.MAPS_INSTANCEMAP, PrometheusMapsDataSetInstance::getMap);
      }
  
      /**
       * The item.
       */
      private final Map<MetisListKey, PrometheusMapsListInstance> theMap;
  
      /**
       * Constructor.
       */
      PrometheusMapsDataSetInstance() {
          theMap = new LinkedHashMap<>();
      }
  
      /**
       * Constructor.
       *
       * @param pSource the source dataset map
       */
      PrometheusMapsDataSetInstance(final PrometheusMapsDataSetInstance pSource) {
          this();
  
          /* Recreate underlying maps */
          for (PrometheusMapsListInstance myMap : pSource.getMap().values()) {
              /* Create a new ListMap */
              theMap.put(myMap.getListKey(), new PrometheusMapsListInstance(this, myMap));
          }
      }
  
      @Override
      public MetisFieldSetDef getDataFieldSet() {
          return FIELD_DEFS;
      }
  
      @Override
      public String formatObject(final OceanusDataFormatter pFormatter) {
          return PrometheusMapsDataSetInstance.class.getSimpleName();
      }
  
      /**
       * Obtain the map.
       *
       * @return the map
       */
      private Map<MetisListKey, PrometheusMapsListInstance> getMap() {
          return theMap;
      }
  
      @Override
      public PrometheusMapsListInstance getList(final MetisListKey pKey) {
          return theMap.get(pKey);
      }
  
      /**
      * Declare fieldId map.
      *
      * @param pListKey the listKey
      * @param pFieldId the fieldId
      */
     void declareFieldIdMap(final MetisListKey pListKey,
                            final MetisDataFieldId pFieldId) {
         final PrometheusMapsListInstance myMap = theMap.computeIfAbsent(pListKey, PrometheusMapsListInstance::new);
         myMap.declareFieldIdMap(pFieldId);
     }
 
     /**
      * Declare fieldId map.
      *
      * @param pListKey the listKey
      * @param pFieldId the fieldId
      * @param pFilter  the filter
      */
     void declareFieldIdMap(final MetisListKey pListKey,
                            final MetisDataFieldId pFieldId,
                            final Function<PrometheusDataItem, Boolean> pFilter) {
         final PrometheusMapsListInstance myMap = theMap.computeIfAbsent(pListKey, PrometheusMapsListInstance::new);
         myMap.declareFieldIdMap(pFieldId, pFilter);
     }
 
     /**
      * Declare shared fieldId map.
      *
      * @param pListKey   the listKey
      * @param pFieldId   the fieldId
      * @param pSharedKey the shared listKey
      */
     void declareFieldIdMap(final MetisListKey pListKey,
                            final MetisDataFieldId pFieldId,
                            final MetisListKey pSharedKey) {
         final PrometheusMapsListInstance myMap = theMap.computeIfAbsent(pListKey, PrometheusMapsListInstance::new);
         final PrometheusMapsListInstance mySharedMap = theMap.get(pSharedKey);
         myMap.declareFieldIdMap(pFieldId, mySharedMap);
     }
 
     /**
      * Declare dateId map.
      *
      * @param pListKey   the listKey
      * @param pOwnerId   the ownerId
      * @param pDateId    the dateId
      * @param pAllowNull do we allow null value?
      */
     void declareDateIdMap(final MetisListKey pListKey,
                           final MetisDataFieldId pOwnerId,
                           final MetisDataFieldId pDateId,
                           final boolean pAllowNull) {
         final PrometheusMapsListInstance myMap = theMap.computeIfAbsent(pListKey, PrometheusMapsListInstance::new);
         myMap.declareDateIdMap(pOwnerId, pDateId, pAllowNull);
     }
 
     /**
      * add item to map.
      *
      * @param pItem the item
      */
     void addItemToMaps(final PrometheusDataItem pItem) {
         final PrometheusMapsListInstance myMap = theMap.get(pItem.getItemType());
         if (myMap != null) {
             myMap.addItemToMaps(pItem);
         }
     }
 
     /**
      * Is the key duplicate?
      *
      * @param pFieldId the fieldId
      * @param pItem    the item
      * @return true/false
      */
     boolean isKeyDuplicate(final MetisDataFieldId pFieldId,
                            final PrometheusDataItem pItem) {
         final PrometheusMapsListInstance myMap = theMap.get(pItem.getItemType());
         return myMap != null && myMap.isKeyDuplicate(pFieldId, pItem);
     }
 
     /**
      * Is the key available?
      *
      * @param pListKey the listKey
      * @param pFieldId the fieldId
      * @param pKey     the key
      * @return true/false
      */
     boolean isKeyAvailable(final MetisListKey pListKey,
                            final MetisDataFieldId pFieldId,
                            final Object pKey) {
         final PrometheusMapsListInstance myMap = theMap.get(pListKey);
         return myMap == null || myMap.isKeyAvailable(pFieldId, pKey);
     }
 
     /**
      * Obtain the item for the key.
      *
      * @param pListKey the listKey
      * @param pFieldId the fieldId
      * @param pKey     the key
      * @return the item
      */
     PrometheusDataItem getItemForKey(final MetisListKey pListKey,
                                      final MetisDataFieldId pFieldId,
                                      final Object pKey) {
         final PrometheusMapsListInstance myMap = theMap.get(pListKey);
         return myMap == null ? null : myMap.getItemForKey(pFieldId, pKey);
     }
 
     /**
      * Reset Maps.
      */
     void resetMaps() {
         /* Reset each map */
         for (PrometheusMapsListInstance myMap : theMap.values()) {
             myMap.resetMaps();
         }
     }
 }