import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Point;
import java.awt.event.MouseEvent;
import java.io.*;
import java.util.*;

//import GUI.Move;

public class Mapper extends GUI {

    List<Segment> outSegs = new ArrayList<Segment>();
    List<Segment> inSegs = new ArrayList<Segment>();
    List<Node> nodes = new ArrayList<Node>();
    List<Segment> segments = new ArrayList<Segment>();
    Map<Integer, Road> roads = new HashMap<>();

    Location origin = Location.newFromLatLon(Location.CENTRE_LAT, Location.CENTRE_LON-1);
    double lat_shift = 5;
    double long_shift = 5;
    double scale = 5;

    public Mapper() {
        // TODO Auto-generated constructor stub
    }

    @Override
    protected void redraw(Graphics g) {
        // draw nodes
        for (Node n : nodes) {
            Location loc = Location.newFromLatLon(n.latitude, n.longitude);
            Point point = loc.asPoint(origin, scale);
            g.fillOval(point.x, point.y, 1, 1);
        }
    }

    @Override
    protected void onClick(MouseEvent e) {
        System.out.println(e.getX());
        System.out.println(e.getY());
        System.out.println("onClick");
    }

    @Override
    protected void onSearch() {
        String search = getSearchBox().getText();
        System.out.print(search);
    }

    @Override
    protected void onMove(Move m) {
        if ( m == Move.EAST ) {
            Location neworigin = origin.moveBy(lat_shift, 0);
            origin = neworigin;
            getTextOutputArea().setText("MOVE EAST");
        } else if ( m == Move.WEST ) {
            Location neworigin = origin.moveBy(-lat_shift, 0);
            origin = neworigin;
            getTextOutputArea().setText("MOVE WEST");
        } else if ( m == Move.NORTH ) {
            Location neworigin = origin.moveBy(0, -long_shift);
            origin = neworigin;
            getTextOutputArea().setText("MOVE NORTH");
        } else if ( m == Move.SOUTH ) {
            Location neworigin = origin.moveBy(0, long_shift);
            origin = neworigin;
            getTextOutputArea().setText("MOVE SOUTH");
        } else if ( m == Move.ZOOM_IN ) {
            Dimension area = getDrawingAreaDimension();
            double oldscale = scale;
            scale += 0.5;
//          double midx = area.getWidth() / 2;
//          double midy = area.getHeight() / 2;
//          Location midpoint = new Location(midx, midy);
//          double distance = origin.distance(midpoint);
            double dx = ( area.getWidth() - ( area.getWidth() * ( oldscale / scale ) ) ) / 2;
            double dy = ( area.getHeight() - ( area.getHeight() * ( oldscale / scale ) ) ) / 2;
            System.out.println(dx);
            System.out.println(dy);
//          Point point = new Point(area.height, area.width);
            Location neworigin = origin.moveBy(origin.x + dx, origin.y + dy);
            origin = neworigin;
            getTextOutputArea().setText("ZOOM IN");
        } else if ( m == Move.ZOOM_OUT ) {
            scale--;
            Dimension area = getDrawingAreaDimension();
            double dx = ( area.width + ( area.width * scale ) ) / 2;
            double dy = ( area.height + ( area.height * scale ) ) / 2;
            Location neworigin = origin.moveBy(origin.x - dx, origin.y - dy);
            origin = neworigin;
            getTextOutputArea().setText("ZOOM OUT");
        }
    }

    @Override
    protected void onLoad(File nodesfile, File roadsfile, File segmentsfile, File polygonsfile) {
        BufferedReader nodesIn = null;
        //BufferedReader roadsIn = null;
        //BufferedReader segmentsIn = null;

        // Get nodes (intersections)
        try {
            nodesIn = new BufferedReader(new FileReader(nodesfile));
            String ln = nodesIn.readLine();
            int nodeID;
            double latitude, longitude;
            while (ln != null) {
                String[] splitln = ln.split("\\t"); // split line at tabs
                nodeID = Integer.parseInt(splitln[0]);
                latitude = Double.parseDouble(splitln[1]);
                longitude = Double.parseDouble(splitln[2]);
                Node n = new Node(nodeID, latitude, longitude);
                nodes.add(n);
                ln = nodesIn.readLine();
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                if ( nodesIn != null) {
                    nodesIn.close();
                }
            } catch (IOException s) {
                System.out.print(s);
            }
        }

//      // Get roads
//      try {
//          roadsIn = new BufferedReader(new FileReader(roadsfile));
//          String ln = roadsIn.readLine();
//          int nodeID;
//          double latitude, longitude;
//          while (ln != null) {
//              String[] splitln = ln.split("\\t"); // split line at tabs
//              nodeID = Integer.parseInt(splitln[0]);
//              latitude = Double.parseDouble(splitln[1]);
//              longitude = Double.parseDouble(splitln[2]);
//              Node n = new Node(nodeID, latitude, longitude);
//              nodes.add(n);
//              ln = roadsIn.readLine();
//          }
//      } catch (IOException e) {
//          e.printStackTrace();
//      } finally {
//          try {
//              if ( roadsIn != null) {
//                  roadsIn.close();
//              }
//          } catch (IOException s) {
//              System.out.print(s);
//          }
//      }
//
        // Get segments
//      try {
//          segmentsIn = new BufferedReader(new FileReader(segmentsfile));
//          segmentsIn.readLine(); // headings line
//          String ln = segmentsIn.readLine();
//          int roadID, nodeID1, nodeID2;
//          double length;
//          double[][] coords;
//          while (ln != null) {
//              String[] splitln = ln.split("\\t"); // split line at tabs
//              roadID = Integer.parseInt(splitln[0]);
//              length = Double.parseDouble(splitln[1]);
//              nodeID1 = Integer.parseInt(splitln[2]);
//              nodeID2 = Integer.parseInt(splitln[3]);
//              for (int i=4; i<splitln.length; i+2){
//                  double latitude = Double.parseDouble(splitln[4]);
//                  double long
//              }
//              Node n = new Node(nodeID, latitude, longitude);
//              nodes.add(n);
//              ln = segmentsIn.readLine();
//          }
//      } catch (IOException e) {
//          e.printStackTrace();
//      } finally {
//          try {
//              if ( segmentsIn != null) {
//                  segmentsIn.close();
//              }
//          } catch (IOException s) {
//              System.out.print(s);
//          }
//      }
    }

    public static void main(String[] args) {
        new Mapper();
    }

}