package dk.daoas.daoadresseservice.db;


import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import dk.daoas.daoadresseservice.DaekningsType;
import dk.daoas.daoadresseservice.beans.Address;
import dk.daoas.daoadresseservice.beans.ExtendedBean;
import dk.daoas.daoadresseservice.beans.HundredePctBean;
import dk.daoas.daoadresseservice.util.DeduplicateHelper;

public class DatabaseLayer {
	
	public static List<Address> getAllAdresses() throws SQLException {
		
		String sql = "SELECT id,vejnavn,husnr,husnrbogstav,kommunekode,vejkode,postnr,gadeid,upper(distributor) AS distributor,dbkbane,koreliste,rute "
				+ "FROM fulddaekning.adressetabel "
				+ "WHERE gadeid IS NOT NULL "
				//+ "AND postnr = 8700" //DEBUG only
				;
		
		Connection conn = DBConnection.getConnection();		
		Statement stmt = conn.createStatement(java.sql.ResultSet.TYPE_FORWARD_ONLY, java.sql.ResultSet.CONCUR_READ_ONLY);
		stmt.setFetchSize(Integer.MIN_VALUE);
		ResultSet res = stmt.executeQuery(sql);
		
		List<Address> list = new ArrayList<Address>(2600000);//initial capacity 2.6 mio
		
		DeduplicateHelper<String> vejnavne = new DeduplicateHelper<String>();
		DeduplicateHelper<String> distributorer = new DeduplicateHelper<String>();

		
		while (res.next()) {
			
			// Cache String instanserne for vejnavne for at mindske hukommelses forbruget
			String dbVejnavn = res.getString(2);			
			String vejnavn = vejnavne.getInstance(dbVejnavn);

			// Cache String instanserne for distributor for at mindske hukommelses forbruget
			// (De-dubblicate)
			String dbDistributor = res.getString(9);			
			String distributor = distributorer.getInstance(dbDistributor);
			
			Address a = new Address();
			a.id = res.getInt(1);
			a.vejnavn = vejnavn;
			a.husnr = res.getInt(3);
			a.husnrbogstav = res.getString(4);
			a.kommunekode = res.getInt(5);
			a.vejkode = res.getInt(6);
			a.postnr = res.getInt(7);
			a.gadeid = res.getLong(8);
			a.distributor = distributor;
			a.dbkBane = res.getInt(10);
			a.koreliste = res.getString(11);
			a.rute = res.getString(12);
			
			//a.vasketVejnavn = AddressUtils.vaskVejnavn(a.vejnavn);
			
			if (a.rute != null && a.rute.length()> 0) {
				a.daekningsType = DaekningsType.DAEKNING_DIREKTE;
			} else {
				a.daekningsType = DaekningsType.DAEKNING_IKKEDAEKKET;
			}			
			
			list.add(a);
		}
		res.close();
		stmt.close();
		conn.close();
		
		System.out.println("Loaded " + list.size() + " adresses");
		
		return list;
	}
	
	public static List<ExtendedBean> getExtendedAdresslist() throws SQLException {
		
		String sql = "select orgid, a.id as targetid, afstand, LOWER(type) as type from fulddaekning.afstand_anden_rute a " +
					"join odbc.transporttype t " + 
					"on t.Art = 'Transpost' " +
					"and ( (t.Type = 'Cykel' and a.Afstand < 1.001) or (t.Type = 'Scooter' and a.Afstand < 1.201) or (t.Type = 'Bil' and a.Afstand < 2.601) ) " +
					"and t.Rute = a.Rute " + 
					
					"UNION ALL " +
					
					"SELECT orgid, a.id as targetid, afstand,'' as type FROM  fulddaekning.afstand_anden_rute_bk a " +
					"left join bogleveringer.postnummerdistributor d on d.PostNr = a.orgPostnr " + 
					"WHERE d.Distributor <> 10057"
					;
		
		Connection conn = DBConnection.getConnection();		
		Statement stmt = conn.createStatement(java.sql.ResultSet.TYPE_FORWARD_ONLY, java.sql.ResultSet.CONCUR_READ_ONLY);
		stmt.setFetchSize(Integer.MIN_VALUE);
		
		ResultSet res = stmt.executeQuery(sql);
		
		DeduplicateHelper<String> transportTyper = new DeduplicateHelper<String>();
		
		List<ExtendedBean> list = new ArrayList<ExtendedBean>( 350000); //Initial capacity 350K
		while (res.next()) {
			
			String dbTransport = res.getString(4);			
			String transport = transportTyper.getInstance(dbTransport);
			
			ExtendedBean eb = new ExtendedBean();
			eb.orgId = res.getInt(1);
			eb.targetId = res.getInt(2);
			eb.afstand = res.getDouble(3);
			eb.transport = transport;
						
			list.add(eb);
		}
		
		res.close();
		stmt.close();
		conn.close();
		
		System.out.println("Loaded " + list.size() + " extendedbeans");
		
		return list;
	}
	
	public static Map<Integer,HundredePctBean> get100PctList() throws SQLException {
		String sql = "SELECT postnr,UPPER(distributor) as distributor,rute,koreliste,dbkbane " + 
					 "FROM bogleveringer.adresser_udenfor_daekning";
		
		Connection conn = DBConnection.getConnection();		
		Statement stmt = conn.createStatement(java.sql.ResultSet.TYPE_FORWARD_ONLY, java.sql.ResultSet.CONCUR_READ_ONLY);
		ResultSet res = stmt.executeQuery(sql);

		Map<Integer,HundredePctBean> map = new HashMap<Integer,HundredePctBean>();
		
		DeduplicateHelper<String> distributorer = new DeduplicateHelper<String>();
		
		while (res.next()) {
			
			String dbDistributor = res.getString(2);			
			String distributor = distributorer.getInstance(dbDistributor);
			
			HundredePctBean bean = new HundredePctBean();
			bean.postnr = res.getInt(1);
			bean.distributor = distributor;
			bean.rute = res.getString(3);
			bean.koreliste = res.getString(4);
			bean.dbkBane = res.getInt(5);			
						
			map.put(bean.postnr, bean);
		}
		
		res.close();
		stmt.close();
		conn.close();
		
		System.out.println("Loaded " + map.size() + " 100pct beans");
		
		return map;
		
	}
	
}