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 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
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package org.apache.cayenne.dbsync.merge.token.model;

import org.apache.cayenne.dbsync.merge.context.MergerContext;
import org.apache.cayenne.dbsync.merge.factory.MergerTokenFactory;
import org.apache.cayenne.dbsync.merge.token.MergerToken;
import org.apache.cayenne.map.DbAttribute;
import org.apache.cayenne.map.DbEntity;
import org.apache.cayenne.map.event.AttributeEvent;

import java.util.Collection;
import java.util.HashSet;
import java.util.Set;

public class SetPrimaryKeyToModel extends AbstractToModelToken.Entity {

    private Collection<DbAttribute> primaryKeyOriginal;
    private Collection<DbAttribute> primaryKeyNew;
    private String detectedPrimaryKeyName;
    private Set<String> primaryKeyNewAttributeNames = new HashSet<String>();

    public SetPrimaryKeyToModel(DbEntity entity,
            Collection<DbAttribute> primaryKeyOriginal,
            Collection<DbAttribute> primaryKeyNew, String detectedPrimaryKeyName) {
        super("Set Primary Key", 105, entity);
        
        this.primaryKeyOriginal = primaryKeyOriginal;
        this.primaryKeyNew = primaryKeyNew;
        this.detectedPrimaryKeyName = detectedPrimaryKeyName;
        
        for (DbAttribute attr : primaryKeyNew) {
            primaryKeyNewAttributeNames.add(attr.getName().toUpperCase());
        }
    }

    @Override
    public MergerToken createReverse(MergerTokenFactory factory) {
        return factory.createSetPrimaryKeyToDb(
                getEntity(),
                primaryKeyNew,
                primaryKeyOriginal,
                detectedPrimaryKeyName);
    }

    @Override
    public void execute(MergerContext mergerContext) {
        DbEntity e = getEntity();

        for (DbAttribute attr : e.getAttributes()) {

            boolean wasPrimaryKey = attr.isPrimaryKey();
            boolean willBePrimaryKey = primaryKeyNewAttributeNames.contains(attr
                    .getName()
                    .toUpperCase());

            if (wasPrimaryKey != willBePrimaryKey) {
                attr.setPrimaryKey(willBePrimaryKey);
                e.dbAttributeChanged(new AttributeEvent(this, attr, e));
                mergerContext.getDelegate().dbAttributeModified(attr);
            }
        }
    }
}