package com.camilstaps.taize;

import android.content.Context;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewTreeObserver;
import android.widget.TextView;

import com.camilstaps.common.Date;
import com.camilstaps.common.Listener;
import com.camilstaps.common.Sharable;

/**
 * Fragment for displaying one daily reading
 * @author Camil Staps
 */
public class DailyReadingFragment extends Fragment implements Sharable {

    private SharedPreferences.OnSharedPreferenceChangeListener sharedPreferenceChangeListener;
    private ViewTreeObserver.OnScrollChangedListener onScrollChangedListener;
    private View rootView;
    private Context context;

    private Date date;
    private String reading;
    private String bibleText;
    private String reference;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        rootView = inflater.inflate(R.layout.pager_content_dailyreading, container, false);

        context = container.getContext();

        Bundle args = getArguments();
        int dateOffset = args.getInt("dateOffset", 0);

        date = new Date();
        date.addOrSubtractDays(dateOffset);

        setupContent();

        return rootView;
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);

        sharedPreferenceChangeListener = new SharedPreferences.OnSharedPreferenceChangeListener() {
            @Override
            public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
                switch (key) {
                    case "dailyreadings":
                    case "dailyreadingbible":
                        setupContent();
                        break;
                }
            }
        };
        PreferenceManager.getDefaultSharedPreferences(context).registerOnSharedPreferenceChangeListener(sharedPreferenceChangeListener);
    }

    /**
     * Setup all content of the Fragment
     */
    protected void setupContent() {
        setDailyReading();
        setDailyReadingBibleText();
    }

    /**
     * Set the daily reading
     */
    public void setDailyReading() {
        Taize.getDailyReading(context, new Listener<DailyReading>() {
            @Override
            public void success(DailyReading data) {
                ((TextView) rootView.findViewById(R.id.textDailyReading)).setText(data.getTextWithoutReference());
                reading = data.getTextWithoutReference();
                BibleText bt = data.getBibleReference();
                if (bt != null) {
                    ((TextView) rootView.findViewById(R.id.refDailyReadingBibleText)).setText(bt.toString());
                    reference = bt.toString();
                }
            }

            @Override
            public void failure() {
                ((TextView) rootView.findViewById(R.id.textDailyReading)).setText("No reading found.");
            }
        }, date);

        String niceDate = date.toNiceString(context);
        niceDate = niceDate.substring(0,1).toUpperCase() + niceDate.substring(1);
        ((TextView) rootView.findViewById(R.id.dateDailyReading)).setText(niceDate);
    }

    /**
     * Set the Bible text
     */
    public void setDailyReadingBibleText() {
        Taize.getDailyReadingBibleText(context, new Listener<String>() {
            @Override
            public void success(String data) {
                ((TextView) rootView.findViewById(R.id.textDailyReadingBibleText)).setText(data);
                bibleText = data;
            }

            @Override
            public void failure() {
                ((TextView) rootView.findViewById(R.id.textDailyReadingBibleText)).setText("No bible text found.");
            }
        }, date);
    }

    /**
     * The user can choose to share the reading, the Bible text or both
     * @param id the XML id the resource is linked to
     * @return
     */
    @Override
    public Object getItem(int id) {
        switch (id) {
            case R.id.action_share_bibletext:
                return reference + ": " + bibleText;
            case R.id.action_share_reading_with_bibletext:
                return reading + "\n\n" + reference + ": " + bibleText;
            case R.id.action_share_reading:
            default:
                return reading + " (" + reference + ")";
        }
    }

    /**
     * The user can choose to share the reading, the Bible text or both
     * @return
     */
    @Override
    public int getMenuId() {
        return R.menu.share_popup_reading;
    }
}