package nodomain.freeyourgadget.gadgetbridge.activities.charts;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;
import android.support.v4.content.LocalBroadcastManager;
import android.support.v4.view.ViewPager;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ProgressBar;
import android.widget.TextView;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.Date;

import nodomain.freeyourgadget.gadgetbridge.GBApplication;
import nodomain.freeyourgadget.gadgetbridge.R;
import nodomain.freeyourgadget.gadgetbridge.activities.AbstractFragmentPagerAdapter;
import nodomain.freeyourgadget.gadgetbridge.activities.AbstractGBFragmentActivity;
import nodomain.freeyourgadget.gadgetbridge.activities.ControlCenter;
import nodomain.freeyourgadget.gadgetbridge.impl.GBDevice;
import nodomain.freeyourgadget.gadgetbridge.util.DateTimeUtils;

public class ChartsActivity extends AbstractGBFragmentActivity implements ChartsHost {

    private static final Logger LOG = LoggerFactory.getLogger(ChartsActivity.class);

    private ProgressBar mProgressBar;
    private Button mPrevButton;
    private Button mNextButton;
    private TextView mDateControl;

    private Date mStartDate;
    private Date mEndDate;


    private BroadcastReceiver mReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            String action = intent.getAction();
            switch (action) {
                case ControlCenter.ACTION_QUIT:
                    finish();
                    break;
                case GBDevice.ACTION_DEVICE_CHANGED:
                    GBDevice dev = intent.getParcelableExtra(GBDevice.EXTRA_DEVICE);
                    refreshBusyState(dev);
                    break;
            }
        }
    };
    private GBDevice mGBDevice;
    private ViewGroup dateBar;

    private void refreshBusyState(GBDevice dev) {
        if (dev.isBusy()) {
            mProgressBar.setVisibility(View.VISIBLE);
        } else {
            boolean wasBusy = mProgressBar.getVisibility() != View.GONE;
            if (wasBusy) {
                mProgressBar.setVisibility(View.GONE);
                LocalBroadcastManager.getInstance(this).sendBroadcast(new Intent(REFRESH));
            }
        }
    }

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

        initDates();

        IntentFilter filterLocal = new IntentFilter();
        filterLocal.addAction(ControlCenter.ACTION_QUIT);
        filterLocal.addAction(GBDevice.ACTION_DEVICE_CHANGED);
        LocalBroadcastManager.getInstance(this).registerReceiver(mReceiver, filterLocal);

        Bundle extras = getIntent().getExtras();
        if (extras != null) {
            mGBDevice = extras.getParcelable(GBDevice.EXTRA_DEVICE);
        } else {
            throw new IllegalArgumentException("Must provide a device when invoking this activity");
        }

        // Set up the ViewPager with the sections adapter.
        ViewPager viewPager = (ViewPager) findViewById(R.id.pager);
        viewPager.setAdapter(getPagerAdapter());

        dateBar = (ViewGroup) findViewById(R.id.charts_date_bar);

        mProgressBar = (ProgressBar) findViewById(R.id.charts_progress);
        mPrevButton = (Button) findViewById(R.id.charts_previous);
        mPrevButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                handlePrevButtonClicked();
            }
        });
        mNextButton = (Button) findViewById(R.id.charts_next);
        mNextButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                handleNextButtonClicked();
            }
        });

        mDateControl = (TextView) findViewById(R.id.charts_text_date);
    }

    protected void initDates() {
        setEndDate(new Date());
        setStartDate(DateTimeUtils.shiftByDays(getEndDate(), -1));
    }

    @Override
    public GBDevice getDevice() {
        return mGBDevice;
    }

    @Override
    public void setStartDate(Date startDate) {
        mStartDate = startDate;
    }

    @Override
    public void setEndDate(Date endDate) {
        mEndDate = endDate;
    }

    @Override
    public Date getStartDate() {
        return mStartDate;
    }

    @Override
    public Date getEndDate() {
        return mEndDate;
    }

    private void handleNextButtonClicked() {
        LocalBroadcastManager.getInstance(this).sendBroadcast(new Intent(DATE_NEXT));
    }

    private void handlePrevButtonClicked() {
        LocalBroadcastManager.getInstance(this).sendBroadcast(new Intent(DATE_PREV));
    }

    @Override
    protected void onDestroy() {
        LocalBroadcastManager.getInstance(this).unregisterReceiver(mReceiver);
        super.onDestroy();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        super.onCreateOptionsMenu(menu);
        getMenuInflater().inflate(R.menu.menu_charts, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case R.id.charts_fetch_activity_data:
                GBApplication.deviceService().onFetchActivityData();
                return true;
            default:
                break;
        }

        return super.onOptionsItemSelected(item);
    }

    @Override
    public void setDateInfo(String dateInfo) {
        mDateControl.setText(dateInfo);
    }

    @Override
    protected AbstractFragmentPagerAdapter createFragmentPagerAdapter(FragmentManager fragmentManager) {
        return new SectionsPagerAdapter(fragmentManager);
    }

    @Override
    public ViewGroup getDateBar() {
        return dateBar;
    }

    /**
     * A {@link FragmentStatePagerAdapter} that returns a fragment corresponding to
     * one of the sections/tabs/pages.
     */
    public static class SectionsPagerAdapter extends AbstractFragmentPagerAdapter {

        public SectionsPagerAdapter(FragmentManager fm) {
            super(fm);
        }

        @Override
        public Fragment getItem(int position) {
            // getItem is called to instantiate the fragment for the given page.
            switch (position) {
                case 0:
                    return new ActivitySleepChartFragment();
                case 1:
                    return new SleepChartFragment();
                case 2:
                    return new WeekStepsChartFragment();
                case 3:
                    return new LiveActivityFragment();

            }
            return null;
        }

        @Override
        public int getCount() {
            // Show 3 total pages.
            return 4;
        }
    }
}