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package com.avaje.ebeaninternal.server.querydefn;

import com.avaje.ebean.OrderBy;
import com.avaje.ebean.RawSql;
import com.avaje.ebeaninternal.api.BindParams;
import com.avaje.ebeaninternal.api.CQueryPlanKey;
import com.avaje.ebeaninternal.api.HashQueryPlanBuilder;
import com.avaje.ebeaninternal.api.SpiExpression;
import com.avaje.ebeaninternal.api.SpiQuery;
import com.avaje.ebeaninternal.server.deploy.TableJoin;

/**
 * Query plan key for ORM queries.
 */
public class OrmQueryPlanKey implements CQueryPlanKey {

  private final TableJoin includeTableJoin;
  private final String orderByAsSting;
  private final OrmQueryDetail detail;
  private final SpiExpression where;
  private final SpiExpression having;
  private final RawSql.Key rawSqlKey;
  private final boolean hasIdValue;
  private final SpiQuery.Type type;
  private final int maxRows;
  private final int firstRow;
  private final boolean disableLazyLoading;
  private final String query;
  private final boolean distinct;
  private final boolean sqlDistinct;
  private final String mapKey;
  private final SpiQuery.TemporalMode temporalMode;
  private final boolean forUpdate;
  private final String rootTableAlias;
  private final OrmUpdateProperties updateProperties;

  private final int planHash;
  private final int bindCount;

  public OrmQueryPlanKey(TableJoin includeTableJoin, SpiQuery.Type type, OrmQueryDetail detail, int maxRows, int firstRow, boolean disableLazyLoading, OrderBy orderBy, String query, boolean distinct, boolean sqlDistinct, String mapKey, Object id, BindParams bindParams, SpiExpression whereExpressions, SpiExpression havingExpressions, SpiQuery.TemporalMode temporalMode, boolean forUpdate, String rootTableAlias, RawSql rawSql, OrmUpdateProperties updateProperties) {

    this.includeTableJoin = includeTableJoin;
    this.type = type;
    this.detail = detail;
    this.maxRows = maxRows;
    this.firstRow = firstRow;
    this.disableLazyLoading = disableLazyLoading;
    this.orderByAsSting = (orderBy == null) ? null : orderBy.toStringFormat();
    this.query = query;
    this.distinct = distinct;
    this.sqlDistinct = sqlDistinct;
    this.mapKey = mapKey;
    this.hasIdValue = (id != null);
    this.where = (whereExpressions == null) ? null : whereExpressions.copyForPlanKey();
    this.having = (havingExpressions == null) ? null : havingExpressions.copyForPlanKey();
    this.temporalMode = temporalMode;
    this.forUpdate = forUpdate;
    this.rootTableAlias = rootTableAlias;
    this.updateProperties = updateProperties;
    this.rawSqlKey = (rawSql == null) ? null : rawSql.getKey();

    // exclude bind values and things unrelated to the sql being generated
    HashQueryPlanBuilder builder = new HashQueryPlanBuilder();

    builder.add((type == null ? 0 : type.ordinal() + 1));
    builder.add(distinct).add(sqlDistinct).add(query);
    builder.add(firstRow).add(maxRows);
    builder.add(orderBy).add(forUpdate);
    builder.add(mapKey);
    builder.add(disableLazyLoading);
    builder.add(hasIdValue);
    builder.add(temporalMode);
    builder.add(rawSqlKey == null ? 0 : rawSqlKey.hashCode());
    builder.add(includeTableJoin != null ? includeTableJoin.queryHash() : 0);
    builder.add(rootTableAlias);

    if (detail != null) {
      detail.queryPlanHash(builder);
    }
    if (bindParams != null) {
      bindParams.buildQueryPlanHash(builder);
    }
    if (where != null) {
      where.queryPlanHash(builder);
    }
    if (having != null) {
      having.queryPlanHash(builder);
    }
    if (updateProperties != null) {
      updateProperties.buildQueryPlanHash(builder);
    }

    this.planHash = builder.getPlanHash();
    this.bindCount = builder.getBindCount();
  }

  @Override
  public String getPartialKey() {
    return planHash + "_" + bindCount;
  }

  @Override
  public int hashCode() {
    return planHash;
  }

  @Override
  public boolean equals(Object o) {
    if (this == o) return true;
    if (o == null || getClass() != o.getClass()) return false;

    OrmQueryPlanKey that = (OrmQueryPlanKey) o;

    if (planHash != that.planHash) return false;
    if (bindCount != that.bindCount) return false;
    if (maxRows != that.maxRows) return false;
    if (firstRow != that.firstRow) return false;
    if (disableLazyLoading != that.disableLazyLoading) return false;
    if (distinct != that.distinct) return false;
    if (sqlDistinct != that.sqlDistinct) return false;
    if (forUpdate != that.forUpdate) return false;
    if (hasIdValue != that.hasIdValue) return false;
    if (type != that.type) return false;
    if (temporalMode != that.temporalMode) return false;
    if (includeTableJoin != null ? !includeTableJoin.equals(that.includeTableJoin) : that.includeTableJoin != null) return false;
    if (orderByAsSting != null ? !orderByAsSting.equals(that.orderByAsSting) : that.orderByAsSting != null) return false;
    if (where != null ? !where.isSameByPlan(that.where) : that.where != null) return false;
    if (having != null ? !having.isSameByPlan(that.having) : that.having != null) return false;
    if (updateProperties != null ? !updateProperties.isSameByPlan(that.updateProperties) : that.updateProperties != null) return false;
    if (rawSqlKey != null ? !rawSqlKey.equals(that.rawSqlKey) : that.rawSqlKey != null) return false;

//    if (detail != null ? !detail.equals(that.detail) : that.detail != null) return false;

    if (query != null ? !query.equals(that.query) : that.query != null) return false;
    if (mapKey != null ? !mapKey.equals(that.mapKey) : that.mapKey != null) return false;
    return rootTableAlias != null ? rootTableAlias.equals(that.rootTableAlias) : that.rootTableAlias == null;
  }
}