package com.mrane.campusmap;

import android.content.Context;
import android.graphics.Typeface;
import android.graphics.drawable.ColorDrawable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import com.mrane.data.Marker;

import java.util.HashMap;
import java.util.List;

import app.insti.R;
import app.insti.fragment.MapFragment;

public class ExpandableListAdapter extends BaseExpandableListAdapter {

    private Context _context;
    private List<String> _listDataHeader;
    private HashMap<String, List<String>> _listDataChild;

    public ExpandableListAdapter(Context context, List<String> listDataHeader,
                                 HashMap<String, List<String>> listChildData) {
        this._context = context;
        this._listDataHeader = listDataHeader;
        this._listDataChild = listChildData;
    }

    @Override
    public Object getChild(int groupPosition, int childPosititon) {
        return this._listDataChild.get(this._listDataHeader.get(groupPosition))
                .get(childPosititon);
    }

    @Override
    public long getChildId(int groupPosition, int childPosition) {
        return childPosition;
    }

    @Override
    public View getChildView(int groupPosition, final int childPosition,
                             boolean isLastChild, View convertView, ViewGroup parent) {
        String headerTitle = (String) getGroup(groupPosition);
        final String childText = (String) getChild(groupPosition, childPosition);

        if (convertView == null) {
            LayoutInflater infalInflater = (LayoutInflater) this._context
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            convertView = infalInflater.inflate(R.layout.map_list_item, null);
        }

        TextView txtListChild = (TextView) convertView
                .findViewById(R.id.lblListItem);
        View itemGroupColor = (View) convertView.findViewById(R.id.item_group_color);
        int color = Marker.getColor(Marker.getGroupId(headerTitle));
        itemGroupColor.setBackgroundColor(color);
        Typeface regular = Typeface.createFromAsset(_context.getAssets(), MapFragment.FONT_REGULAR);
        txtListChild.setTypeface(regular);
        txtListChild.setText(childText);
        return convertView;
    }

    @Override
    public int getChildrenCount(int groupPosition) {
        return this._listDataChild.get(this._listDataHeader.get(groupPosition))
                .size();
    }

    @Override
    public Object getGroup(int groupPosition) {
        return this._listDataHeader.get(groupPosition);
    }

    @Override
    public int getGroupCount() {
        return this._listDataHeader.size();
    }

    @Override
    public long getGroupId(int groupPosition) {
        return groupPosition;
    }

    @Override
    public View getGroupView(int groupPosition, boolean isExpanded,
                             View convertView, ViewGroup parent) {
        String headerTitle = (String) getGroup(groupPosition);
        if (convertView == null) {
            LayoutInflater infalInflater = (LayoutInflater) this._context
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            convertView = infalInflater.inflate(
                    R.layout.map_expandable_list_header, null);
        }

        TextView lblListHeader = (TextView) convertView
                .findViewById(R.id.lblListHeader);
        Typeface regular = Typeface.createFromAsset(_context.getAssets(), MapFragment.FONT_REGULAR);
        lblListHeader.setTypeface(regular);
        lblListHeader.setText(headerTitle);
        ImageView iconExpand = (ImageView) convertView
                .findViewById(R.id.icon_expand);

        ImageView groupColor = (ImageView) convertView.findViewById(R.id.group_color);
        int color = Marker.getColor(Marker.getGroupId(headerTitle));
        groupColor.setImageDrawable(new ColorDrawable(color));

        if (isExpanded) {
            iconExpand.setImageResource(R.drawable.ic_action_expand);
        } else {
            iconExpand.setImageResource(R.drawable.ic_action_next_item);
        }
        return convertView;
    }

    @Override
    public boolean hasStableIds() {
        return false;
    }

    @Override
    public boolean isChildSelectable(int groupPosition, int childPosition) {
        return true;
    }

}
