package gov.uspto.parser.dom4j.keyvalue.config;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class FieldIndex {

	private Map<String, IndexEntry> index;

	public FieldIndex(List<FieldGroup> fieldGroups) {
		this.index = generateFieldIndex(fieldGroups);
	}

	public IndexEntry getEntry(String fieldName) {
		return index.get(fieldName);
	}

	public boolean isAchor(String fieldName) {
		return index.get(fieldName).getField().isAchor();
	}

	public String groupName(String fieldName) {
		return index.get(fieldName).getFieldGroup().getName();
	}

	private Map<String, IndexEntry> generateFieldIndex(List<FieldGroup> fieldGroups) {
		Map<String, IndexEntry> index = new HashMap<String, IndexEntry>();
		for (FieldGroup group : fieldGroups) {
			for (Field field : group.getFields()) {
				if (index.containsKey(field.getName())) {
					System.err.println("Field already defined in another group: " + field.getName() + " : [ "
							+ index.get(field.getName()).getFieldGroup().getName() + ", " + group.getName() + " ]");
				}
				index.put(field.getName(), new IndexEntry(field, group));
			}
		}
		return index;
	}
}