package ru.wadman.smsrightsound.db;

/**
 * Created by wadman on 14.06.2016.
 */
import android.content.Context;
import android.database.Cursor;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;

public abstract class QuickAdapter extends BaseAdapter {

    private final DataSource mDataSource;
    private int mSize = 0;
    private Cursor mRowIds = null;
    private final Context mContext;

    public QuickAdapter(final Context context, final DataSource dataSource) {
        mDataSource = dataSource;
        mContext = context;
        doQuery();
    }

    private void doQuery() {
        if (mRowIds != null) {
            mRowIds.close();
        }
        mRowIds = mDataSource.getRowIds();
        if (mRowIds != null) {
            mSize = mRowIds.getCount();
        } else {
            mSize = 0;
        }
    }

    @Override
    public void notifyDataSetChanged() {
        doQuery();
        super.notifyDataSetChanged();
    }

    @Override
    public int getCount() {
        return mSize;
    }

    @Override
    public Object getItem(final int position) {
        if (mSize > 0 && mRowIds.moveToPosition(position)) {
            long rowId = mRowIds.getLong(0);
            return mDataSource.getRowById(rowId);
        } else {
            return null;
        }
    }

    @Override
    public long getItemId(final int position) {
        if (mSize > 0 && mRowIds.moveToPosition(position)) {
            return mRowIds.getLong(0);
        } else {
            return 0;
        }
    }

    @Override
    public View getView(final int position, final View convertView, final ViewGroup parent) {
        View v = null;
        Cursor cursor = (Cursor)getItem(position);
        if (cursor != null && cursor.moveToFirst()) {
            if (convertView == null) {
                v = newView(position, mContext, cursor, parent);
            } else {
                v = convertView;
            }
            bindView(position, v, mContext, cursor);
        }
        return (v == null ? convertView : v);
    }

    public abstract View newView(final int position, Context context, Cursor cursor, ViewGroup parent);

    public abstract void bindView(final int position, View view, Context context, Cursor cursor);

    public interface DataSource {
        Cursor getRowIds();

        Cursor getRowById(long rowId);
    }

}

    class RuleQuickAdapter extends QuickAdapter {

        public RuleQuickAdapter(Context context, DataSource dataSource) {
            super(context, dataSource);
        }

        @Override
        public View newView(final int position, Context context, Cursor cursor, ViewGroup parent) {
            View view = getLayoutInflater().inflate(R.layout.rule_item, null);
            RuleHolder rh = new RuleHolder();
            rh.pos = position;
            rh.tv1 = (TextView)view.findViewById(R.id.textView1);
            rh.tv2 = (TextView)view.findViewById(R.id.textView2);
            rh.iv = (ImageView)view.findViewById(R.id.imageView);
            rh.up = (Button)view.findViewById(R.id.buttonMoveUp);
            rh.down = (Button)view.findViewById(R.id.buttonMoveDown);
            rh.up.setTag(rh);
            rh.down.setTag(rh);
            rh.up.setOnClickListener(BrowseActivity.this);
            rh.down.setOnClickListener(BrowseActivity.this);
            view.setTag(rh);
            return view;
        }

        @Override
        public void bindView(final int position, View view, Context context, Cursor cursor) {
            RuleHolder rh = (RuleHolder)view.getTag();
            if (rh != null) {
                rh.rule = new Rule(cursor);
                rh.tv1.setText(rh.rule.getName());
                rh.tv2.setText(rh.rule.getNote(BrowseActivity.this));
                rh.up.setEnabled((rh.rule.getRuleType() != Rule.RULE_TYPE_DEFAULT) && (position > 0) && (mAdapter.getCount() > 0));
                rh.down.setEnabled((rh.rule.getRuleType() != Rule.RULE_TYPE_DEFAULT) && (position < mAdapter.getCount()-(rule == null ? 2 : 1)));
                switch (rh.rule.getRuleType()) {
                    case Rule.RULE_TYPE_FOLDER: {
                        rh.iv.setImageResource(R.drawable.ic_folder_white_18dp);
                        break;
                    }
                    default: {
                        rh.iv.setImageResource(R.drawable.ic_forum_white_18dp);
                        break;
                    }
                }
                if (rh.rule.getActive()) {
                    rh.tv1.setPaintFlags((rh.tv1.getPaintFlags() & (~Paint.STRIKE_THRU_TEXT_FLAG)));
                } else {
                    rh.tv1.setPaintFlags(rh.tv1.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG);
                }
            }
        }
    }

    class RuleDataSource implements QuickAdapter.DataSource {

        @Override
        public Cursor getRowIds() {
            if (rule == null) {
                return Helper.getDb().getWritableDatabase().rawQuery(Helper.rowIdsAll,null);
            } else {
                return Helper.getDb().getWritableDatabase().rawQuery(Helper.rowIds, new String[]{Long.toString(rule.getId())});
            }
        }

        @Override
        public Cursor getRowById(long rowId) {
            return Helper.getDb().getWritableDatabase().rawQuery(Helper.rowById, new String[]{Long.toString(rowId)});
        }
    }

    class RuleHolder {
        int pos;
        TextView tv1, tv2;
        Button up, down;
        ImageView iv;
        Rule rule;
    }