package com.example.simpledownloader.sharable;

import java.util.Timer;
import java.util.Vector;

import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.net.ConnectivityManager;
import android.os.Handler;
import android.util.Log;

import com.example.simpledownloader.adapter.TaskAdapter;
import com.example.simpledownloader.scheduler.Scheduler;
import com.example.simpledownloader.sql.TaskDAO;
import com.example.simpledownloader.task.Task;

public class Sharable {
    public static Context cx = null;
    public static Vector<Task> downloads = null;
    public static int networkOption = 1;
    public static TaskDAO taskDAO = null;
    public static SQLiteDatabase db = null;
    public static ConnectivityManager connMgr = null;
    public static TaskAdapter adapter = null;
    public static Timer schedulerTimer = null;
    public static Scheduler schedulerTask = null;
    private static boolean shouldLook = true;
    public static Handler handler = null;
//--------------------------------------------------------------------------------
    public Sharable(Context con){
        cx = con; // Pass application context and not activity context
        taskDAO = new TaskDAO(con); // Make connection to database
        db = taskDAO.getWritableDatabase(); // get a reference to database
        db.enableWriteAheadLogging(); // allow multiple threads writing to database
        downloads = Sharable.getTasks(); // get the tasks
        adapter = new TaskAdapter(con);
        schedulerTimer = new Timer("Scheduler", true); // Must be started later by another activity
        schedulerTask = new Scheduler();
        connMgr = (ConnectivityManager) cx.getSystemService(Context.CONNECTIVITY_SERVICE); // get network and wifi service
    }
//--------------------------------------------------------------------------------
    private static Vector<Task> getTasks() {
        String query = "SELECT name, url, contentlength, byteswritten FROM tasks";
        Cursor resultSet = db.rawQuery(query, null); // select all rows from the table
        Vector<Task> tasks = new Vector<Task>(); // make a vector
        resultSet.moveToFirst(); // move to the first row
        if(resultSet.getCount() == 0){ // if the result has zero rows
            Log.v("SHARABLE", "EMPTY");
            return tasks;  // return empty task
        }else{
            while(resultSet.moveToNext()){ // else we must populate the vector
                String name = resultSet.getString(0); // get the name of the file
                String url = resultSet.getString(1); // get the URL for the file
                long contentLength = resultSet.getLong(2); // get its length, from HTTP connection
                long bytesWritten = resultSet.getLong(3); // get the bytes written
                Task temp = new Task(name, url, contentLength, bytesWritten); // create a Task object
                if(temp.getProgress() != 100){
                    tasks.add(temp); // add it to vector
                    temp.setReadiness(true);
                    Log.v("SHARABLE", temp.toString());
                }
            }
            return tasks;
        }
    }
//--------------------------------------------------------------------------------
    public static synchronized boolean getShouldLook(){
        return shouldLook;
    }
//--------------------------------------------------------------------------------
    public static void setShouldLook(boolean look){
        shouldLook = look;
    }
//--------------------------------------------------------------------------------
}