MainActivity.java

package by.fksis.schedule.app;

import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.v4.view.ViewPager;
import android.util.Log;
import android.widget.TextView;
import by.fksis.schedule.API;
import by.fksis.schedule.Preferences;
import by.fksis.schedule.R;
import by.fksis.schedule.Util;
import by.fksis.schedule.adapters.WeekPagerAdapter;
import by.fksis.schedule.async.SynchronizationTask;
import by.fksis.schedule.dal.ScheduleClass;
import com.WazaBe.HoloEverywhere.sherlock.SFragmentActivity;
import com.actionbarsherlock.view.Menu;
import com.actionbarsherlock.view.MenuItem;
import com.danikula.aibolit.Aibolit;
import com.danikula.aibolit.annotation.InjectView;
import com.viewpagerindicator.TitlePageIndicator;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Iterator;
import java.util.List;

public class MainActivity extends SFragmentActivity {
    private DateFormat sdf_all = new SimpleDateFormat("yyyy-MM-dd hh:mm");
    private DateFormat sdf_date = new SimpleDateFormat("yyyy-MM-dd");

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Aibolit.doInjections(this);

        getSupportActionBar().setTitle(R.string.schedule);
        getSupportActionBar().setIcon(R.drawable.logo);

        API.loadCredentials(this);

        if (!API.credentialsPresent()) {
            startActivity(new Intent(this, LoginActivity.class));
            finish();
        }

        viewPager.setAdapter(new WeekPagerAdapter(getSupportFragmentManager(), this));
        indicator.setViewPager(viewPager);
        indicator.setFooterIndicatorStyle(TitlePageIndicator.IndicatorStyle.Underline);
        indicator.setTextColor(0xff888888);
        //indicator.setTextSize(20);
        indicator.setSelectedColor(0xff444444);
        indicator.setSelectedBold(false);

        viewPager.setCurrentItem(WeekPagerAdapter.NOW_PAGE);

        if (new Preferences(this).getAutoReload())
            new SynchronizationTask(this, false).execute();

        currentClass.setText(getString(R.string.no_classes));
        nextClass.setText(getString(R.string.no_classes));
        handler.sendEmptyMessage(0);

    }

    private Handler handler = new Handler() {
        @Override
        public void dispatchMessage(Message msg) {

            Calendar time = Calendar.getInstance();
            time.setTimeInMillis(System.currentTimeMillis());
            time.set(Calendar.HOUR, 0);
            time.set(Calendar.MINUTE, 00);
            time.set(Calendar.AM_PM, Calendar.AM);
            time.add(Calendar.DATE, 1);

            List<ScheduleClass> classes = ScheduleClass.get(ScheduleClass.class)
                    .filter("weeks%", "%" + Util.getScheduleWeek(Calendar.getInstance().getTime()) + "%")
                    .filter("day", Util.getDayOfWeekIndex(Calendar.getInstance()))
                    .filter("studentGroup", new Preferences(MainActivity.this).getGroup())
                    .filter("subgroups%", "%" + new Preferences(MainActivity.this).getSubgroupString() + "%")
                    .list();

            boolean found = false;
            for (ScheduleClass clazz : classes) {
                Date dateStart = null, dateEnd = null;
                try {
                    dateStart = sdf_all.parse(sdf_date.format(Calendar.getInstance().getTime()) + " " + getResources().getStringArray(R.array.timeSlotStart)[clazz.timeSlot]);
                    dateEnd = sdf_all.parse(sdf_date.format(Calendar.getInstance().getTime()) + " " + getResources().getStringArray(R.array.timeSlotEnd)[clazz.timeSlot]);
                } catch (Exception e) {
                    Log.e(DayScheduleFragment.class.getSimpleName(), e.getMessage());
                }
                if ((dateStart.getTime() <= Calendar.getInstance().getTime().getTime())
                        && (dateEnd.getTime() >= Calendar.getInstance().getTime().getTime())) {
                    currentClass.setText(clazz.name + " " + clazz.room + "\n" +
                            Util.defaultValue(clazz.type, "") + " " + Util.defaultValue(clazz.teacher, ""));
                    time.setTime(dateEnd);
                    if ((classes.size() - 1) > classes.lastIndexOf(clazz)) {
                        ScheduleClass l_next = classes.get(classes.lastIndexOf(clazz) + 1);
                        nextClass.setText(l_next.name + " " + Util.defaultValue(l_next.room, "") + "\n" +
                                Util.defaultValue(l_next.type, "") + " " + Util.defaultValue(l_next.teacher, ""));
                    } else {
                        nextClass.setText(getString(R.string.no_classes));
                    }
                    found = true;
                }
            }
            if (!found) {
                found = false;
                for (Iterator<ScheduleClass> i = classes.iterator(); i.hasNext() && !found; ) {
                    ScheduleClass l = i.next();
                    Date dateStart = null, dateEnd;
                    try {
                        dateStart = sdf_all.parse(sdf_date.format(Calendar.getInstance().getTime()) + " " + getResources().getStringArray(R.array.timeSlotStart)[l.timeSlot]);
                    } catch (Exception e) {
                        Log.e(DayScheduleFragment.class.getSimpleName(), e.getMessage());
                    }
                    if (dateStart.getTime() > Calendar.getInstance().getTime().getTime()) {
                        found = true;
                        currentClass.setText(getString(R.string.no_classes));
                        nextClass.setText(l.name + " " + Util.defaultValue(l.room, "") + "\n" + Util.defaultValue(l.type, "") + " " + Util.defaultValue(l.teacher, ""));
                        time.setTime(dateStart);
                    }
                }
            }
            handler.sendMessageAtTime(new Message(), time.getTimeInMillis());
        }
    };

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        {
            String[] specialRoles = getResources().getStringArray(R.array.specialRoles);
            String userRole = new Preferences(this).getUserRole();
            for (String role : specialRoles) {
                if (role.equals(userRole)) {
                    MenuItem menuItem = menu.add(R.string.group_message);
                    menuItem.setIcon(R.drawable.ic_message);
                    menuItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
                    menuItem.setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
                        @Override
                        public boolean onMenuItemClick(MenuItem item) {
                            startActivity(new Intent(MainActivity.this, BroadcastSubmissionActivity.class));
                            return true;
                        }
                    });
                    break;
                }
            }
        }

        {
            MenuItem menuItem = menu.add(R.string.refresh);
            menuItem.setIcon(R.drawable.ic_reload);
            menuItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
            menuItem.setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
                @Override
                public boolean onMenuItemClick(MenuItem item) {
                    new SynchronizationTask(MainActivity.this, true).execute();
                    return true;
                }
            });
        }

        {
            MenuItem menuItem = menu.add(R.string.preferences);
            menuItem.setIcon(R.drawable.ic_settings);
            menuItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
            menuItem.setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
                @Override
                public boolean onMenuItemClick(MenuItem item) {
                    startActivity(new Intent(MainActivity.this, PreferenceActivity.class));
                    return true;
                }
            });
        }
        return true;
    }

    @Override
    protected void onStop() {
        super.onStop();
        finish();
    }

    @InjectView(R.id.indicator)
    private TitlePageIndicator indicator;

    @InjectView(R.id.pager)
    private ViewPager viewPager;

    @InjectView(R.id.current_class)
    private TextView currentClass;

    @InjectView(R.id.next_class)
    private TextView nextClass;
}