package dk.daoas.adressevedligehold;

import java.io.IOException;

import org.apache.commons.fileupload.FileItem;

import dk.daoas.adressevedligehold.AddressSourceEntry.EntryType;

public class AddressSourceNS extends AbstractAddressSource {
	
	enum NextUgedag {
		MANDAG,TIRSDAG,ONSDAG,TORSDAG,FREDAG,LORDAG,SONDAG
	}
		
	String parts[];
	
	
	NextUgedag nextUgedag = NextUgedag.MANDAG;
		
	public AddressSourceNS(FileItem file) throws Exception {
		super(file);
	}

	
	@Override
	public void validate() throws IOException {
		super.validatNoHeaderLine(22, ',');
	}

	//TODO: Skal csv parsning klares med Apache Commons CSV ?

	@Override
	public AddressSourceEntry getNextEntry() throws IOException {
		if (nextUgedag == NextUgedag.MANDAG) {
			String line = br.readLine();
			if (line == null) // end of file
				return null;
			
			if (line.trim().equals(""))
				return null;
			parts = line.split(",");
			
			if (parts.length != 22) {
				throw new IOException("Not enough fields in line " + line);
			}
		}
		
		
		
		
		AddressSourceEntry entry = new AddressSourceEntry( EntryType.TypeAddressRange );
		entry.distributor = "NS";
		
		
		entry.gadeid = Integer.parseInt( parts[0] );
		entry.vejnavn = parts[1].replace("\"", "");
		//stednavn = parts[2];
		//ukendtt = parts[3];
		entry.postnr = Short.parseShort( parts[4] );
		entry.rute = dirigeringsCache.getInstance( parts[5].replace("\"", "") );
		entry.husnr = Short.parseShort( parts[6] );
		entry.litra = parts[7].replace("\"", "");
		entry.tilHusnr = Short.parseShort( parts[8] );
		entry.tilLitra = parts[9].replace("\"", "");
		//sekvens = parts[10]
		//fradato = parts[11]
		//tildato = parts[12]
		//distributor = parts[13]
		//inspektorkode = parts[21]
		
		switch (nextUgedag) {		
		case MANDAG:
			entry.koreliste = dirigeringsCache.getInstance( parts[14] );
			entry.ugedage = EntryUgedage.MAN;
			nextUgedag = NextUgedag.TIRSDAG;
			break;
		case TIRSDAG:
			entry.koreliste = dirigeringsCache.getInstance( parts[15] );
			entry.ugedage = EntryUgedage.TIR;
			nextUgedag = NextUgedag.ONSDAG;
			break;
		case ONSDAG:
			entry.koreliste = dirigeringsCache.getInstance( parts[16] );
			entry.ugedage = EntryUgedage.ONS;
			nextUgedag = NextUgedag.TORSDAG;
			break;
		case TORSDAG:
			entry.koreliste = dirigeringsCache.getInstance( parts[17] );
			entry.ugedage = EntryUgedage.TOR;
			nextUgedag = NextUgedag.FREDAG;
			break;
		case FREDAG:
			entry.koreliste = dirigeringsCache.getInstance( parts[18] );
			entry.ugedage = EntryUgedage.FRE;
			nextUgedag = NextUgedag.LORDAG;
			break;
		case LORDAG:
			entry.koreliste = dirigeringsCache.getInstance( parts[19] );
			entry.ugedage = EntryUgedage.LOR;
			nextUgedag = NextUgedag.SONDAG;
			break;
		case SONDAG:
			entry.koreliste = dirigeringsCache.getInstance( parts[20] );
			entry.ugedage = EntryUgedage.SON;
			nextUgedag = NextUgedag.MANDAG;
			break;
		default:
			throw new IOException("Ukendt ugedag:" + nextUgedag);
		}

		
		lineCount++;
		
		return entry;
	}
	
	@Override
	public String getDistributor() {
		return "NS";
	}

}