package com.moko.schoolnav;

import java.util.ArrayList;

import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.PolylineOptions;
import android.os.Bundle;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.support.v4.app.FragmentActivity;
import android.widget.Toast;

public class MainActivity extends FragmentActivity {

//Google Maps
GoogleMap googleMap;

//
SQLHelper dbHelper;
Cursor cursor;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

//DB
dbHelper = new SQLHelper(this);
try {
dbHelper.createDataBase();
}
catch (Exception ioe) {
Toast.makeText(getApplicationContext(), "Gagal",

Toast.LENGTH_LONG).show();
}


//BUAT MAP
if(googleMap == null){ //untuk handle jika terjadi old date di hapenya
googleMap = ((SupportMapFragment) getSupportFragmentManager

().findFragmentById(R.id.peta)).getMap();
if(googleMap != null){
googleMap = ((SupportMapFragment)

getSupportFragmentManager().findFragmentById(R.id.peta)).getMap();
}
}


int simpul_awal= 0;
int simpul_tujuan = 3;

//output algoritma
dijkstra algo = new dijkstra();
algo.jalurTerpendek(this, simpul_awal, simpul_tujuan);
Toast.makeText(getBaseContext(), "Jalur terdekat :

"+algo.jalur_terpendek1, Toast.LENGTH_LONG).show();
String[] exp = algo.jalur_terpendek1.split("->");

int start = 0;
//Query DB; Gambar Jalurnya!
dbHelper = new SQLHelper(this);
SQLiteDatabase db = dbHelper.getReadableDatabase();
for(int i = 0; i < exp.length-1; i++){
ArrayList<LatLng> lat_lng = new ArrayList<LatLng>();
cursor = db.rawQuery("SELECT jalur FROM graph where simpul_awal

="+exp[start]+" and simpul_tujuan ="+exp[(++start)], null);
cursor.moveToFirst();
int idx_koord = 0;
String[] exp_koord = cursor.getString(0).split(",");
for(int j = 0; j < exp_koord.length/2; j++){
lat_lng.add( new LatLng(Double.parseDouble

(exp_koord[idx_koord]), Double.parseDouble(exp_koord[++idx_koord])) );
++idx_koord;
}

PolylineOptions jalurBiasa = new PolylineOptions();
jalurBiasa.addAll(lat_lng).width(5).color

(0xff4b9efa).geodesic(true);
googleMap.addPolyline(jalurBiasa);
}

//zoom ke koordinat
cursor = db.rawQuery("SELECT jalur FROM graph where simpul_awal ="+exp

[0]+" and simpul_tujuan ="+exp[1], null);
cursor.moveToFirst();
String[] koord = cursor.getString(0).split(",");
googleMap.moveCamera(CameraUpdateFactory.newLatLngZoom(new

LatLng(Double.parseDouble(koord[0]), Double.parseDouble(koord[1])), 12));

}//oncreate

}