package dk.daoas.daoadresseservice;

import java.sql.SQLException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

import dk.daoas.daoadresseservice.AddressUtils.SplitResult;
import dk.daoas.daoadresseservice.SearchResult.Status;
import dk.daoas.daoadresseservice.db.DatabaseLayer;

public class AdressSearch {

	Map<Integer, Map<String,Long>> searchPostnrVejnavnGadeid;	
	Map<Long,  Map<String,Address>> searchGadeidentAdresser;

	List<Address> alleAdresser;
	
	/* Mapper mellem db Row ID og adresse noden */
	Map<Integer,Address> idAddressMap;
	
	
	public SearchResult search(String postnrStr, String adresse)  {
		int postnr=0;
		
		try {
			postnr = Integer.parseInt(postnrStr);
		} catch (Exception E) {
			return new SearchResult(Status.ERROR_UNKNOWN_POSTAL);
		}		
		
		Map<String,Long> postnrVeje = searchPostnrVejnavnGadeid.get(postnr);			
		
		if (postnrVeje == null) {
			return new SearchResult(Status.ERROR_UNKNOWN_POSTAL);
		}
		
		SplitResult split = AddressUtils.splitAdresse(adresse);
		String vasketVejnavn = AddressUtils.vaskVejnavn( split.vej );
		
		if (split.husnr.length() == 0) {
			return new SearchResult(Status.ERROR_MISSING_HOUSENUMBER);			
		}
		
		Long gadeident =  postnrVeje.get(vasketVejnavn);
		if (gadeident == null) {
			return new SearchResult(Status.ERROR_UNKNOWN_STREETNAME);
		}	
		
		Map<String, Address> gade =  searchGadeidentAdresser.get(gadeident); //Denne søgning må ikke fejle
		
		
		String husnrSearch = "" + split.husnr + split.litra;
		Address addr = gade.get(husnrSearch);
		if (addr == null) {
			return new SearchResult(Status.ERROR_UNKNOWN_ADDRESSPOINT);
		}
				
		
		return new SearchResult(addr);
	}
	
	
	public void buildSearchStructures() throws SQLException{
		searchPostnrVejnavnGadeid = new HashMap<Integer, Map<String,Long>>();
		searchGadeidentAdresser = new HashMap<Long,  Map<String,Address>>();
		idAddressMap = new HashMap<Integer,Address>();
		
		alleAdresser = DatabaseLayer.getAllAdresses();
		for (Address a : alleAdresser) {
			idAddressMap.put(a.id, a);
			
			Map<String,Long> postnrVeje = searchPostnrVejnavnGadeid.get(a.postnr);		
			
			if (postnrVeje == null) {
				postnrVeje = new ConcurrentHashMap<String,Long>();
				searchPostnrVejnavnGadeid.put(a.postnr, postnrVeje);
			}
			
			Long gadeident = postnrVeje.get(a.vasketVejnavn);
			if (gadeident == null) {
				postnrVeje.put(a.vasketVejnavn, a.gadeid);
			}
			
			Map<String, Address> gade =  searchGadeidentAdresser.get(a.gadeid); 
			if (gade == null) {
				gade = new HashMap<String, Address>();
				searchGadeidentAdresser.put(a.gadeid, gade);
			}
			String husnrSearch = "" + a.husnr + a.husnrbogstav;
			gade.put(husnrSearch, a);
									
			
		}
		
	}
	
}