/*
 * Southampton University Map App
 * Copyright (C) 2011  Christopher Baines
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

package net.cbaines.suma;

import android.app.Dialog;
import android.content.Context;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.widget.BaseExpandableListAdapter;
import android.widget.CheckBox;
import android.widget.ExpandableListView;
import android.widget.ExpandableListView.OnChildClickListener;
import android.widget.TextView;

class ViewDialog extends Dialog implements OnChildClickListener {

	private final ExpandableListView epView;

	private static final String TAG = "ViewDialog";

	private final MyExpandableListAdapter mAdapter;

	private OnChildClickListener listener;

	private String[] busRoutes;
	private String[] buildingTypes;
	private String[] other;
	private String[] groupHeadings;
	private String[] siteNames;

	protected MapActivity context;

	public ViewDialog(MapActivity context) {
		super(context);

		this.context = context;

		busRoutes = context.getResources().getStringArray(R.array.uniLinkBusRoutes);
		buildingTypes = context.getResources().getStringArray(R.array.buildingTypes);
		other = context.getResources().getStringArray(R.array.utilityOverlays);
		groupHeadings = context.getResources().getStringArray(R.array.preferencesHeadings);
		siteNames = MapActivity.SITE_NAMES; // TODO: Temp hack, should be
											// included in the strings res for
											// translation
		// purposes?

		setContentView(R.layout.view_dialog);
		setTitle("Select the map elements to display");

		WindowManager.LayoutParams lp = new WindowManager.LayoutParams();
		lp.copyFrom(this.getWindow().getAttributes());
		lp.width = WindowManager.LayoutParams.FILL_PARENT;
		lp.height = WindowManager.LayoutParams.FILL_PARENT;

		this.getWindow().setAttributes(lp);

		epView = (ExpandableListView) findViewById(R.id.view_list);
		mAdapter = new MyExpandableListAdapter(context);
		epView.setAdapter(mAdapter);
		epView.setOnChildClickListener(this);

	}

	public void setOnItemClickListener(OnChildClickListener onChildClickListener) {
		Log.i(TAG, "Listener set for dialog");
		listener = onChildClickListener;
	}

	class MyExpandableListAdapter extends BaseExpandableListAdapter implements Preferences {

		private LayoutInflater inflater;

		private static final String TAG = "MyExpandableListAdapter";

		// Bus Stops
		// |_ U1
		// |_ U1N
		// |_ U2
		// |_ U6
		// |_ U9
		// Bus Routes
		// |_ U1
		// |_ U1N
		// |_ U2
		// |_ U6
		// |_ U9
		// Buildings
		// |_ Residential
		// |_ Non-Residential
		// Site Outlines
		// |_ Highfield Campus
		// |_ Boldrewood Campus
		// |_ Avenue Campus
		// |_ Winchester School of Art
		// |_ The University of Southampton Science Park
		// |_ National Oceanography Centre Campus
		// |_ Boat House
		// |_ Southampton General Hospital
		// |_ Royal South Hants Hospital
		// |_ Belgrave Industrial Site
		// |_ Highfield Hall
		// |_ Glen Eyre Hall
		// |_ South Hill Hall
		// |_ Chamberlain Hall
		// |_ Hartley Grove
		// |_ Bencraft Hall
		// |_ Connaught Hall
		// |_ Montefiore Hall
		// |_ Stoneham Hall
		// |_ Erasmus Park
		// Other
		// |_ Scale Bar
		// |_ Compass
		// |_ My Location

		MyExpandableListAdapter(Context context) {
			inflater = LayoutInflater.from(context);
		}

		public Object getChild(int groupPosition, int childPosition) {
			if (groupPosition == 0 || groupPosition == 1) {
				return busRoutes[childPosition];
			} else if (groupPosition == 2) {
				return buildingTypes[childPosition];
			} else if (groupPosition == 3) {
				return siteNames[childPosition];
			} else if (groupPosition == 4) {
				return other[childPosition];
			} else {
				Log.e(TAG, "Unrecognised groupPosition " + groupPosition);
				return null;
			}
		}

		public long getChildId(int groupPosition, int childPosition) {
			return groupPosition * 50 + childPosition;
		}

		public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView,
				ViewGroup parent) {
			View v = null;
			if (convertView != null)
				v = convertView;
			else
				v = inflater.inflate(R.layout.view_child_row, parent, false);
			String c = (String) getChild(groupPosition, childPosition);
			TextView childName = (TextView) v.findViewById(R.id.childname);
			if (childName != null)
				childName.setText(c);
			CheckBox cb = (CheckBox) v.findViewById(R.id.check1);
			cb.setClickable(false);
			cb.setFocusable(false);
			if (context == null) {
				Log.e(TAG, "context == null");
			}
			SharedPreferences activityPrefs = context.getPreferences(0);

			String str = MapActivity.PREFERENCES_GROUPS[groupPosition]
					+ MapActivity.PREFERENCES_CHILDREN[groupPosition][childPosition];

			if (groupPosition == 0) {
				cb.setChecked(activityPrefs.getBoolean(str, MapActivity.UNI_LINK_BUS_STOP_OVERLAY_ENABLED_BY_DEFAULT));
			} else if (groupPosition == 1) {
				cb.setChecked(activityPrefs.getBoolean(str, MapActivity.BUS_ROUTE_OVERLAYS_ENABLED_BY_DEFAULT));
			} else if (groupPosition == 2) {
				if (childPosition == 0) {
					cb.setChecked(activityPrefs.getBoolean(str,
							MapActivity.RESIDENTIAL_BUILDING_OVERLAY_ENABLED_BY_DEFAULT));
				} else {
					cb.setChecked(activityPrefs.getBoolean(str,
							MapActivity.NON_RESIDENTIAL_BUILDING_OVERLAY_ENABLED_BY_DEFAULT));
				}
			} else if (groupPosition == 3) {
				cb.setChecked(activityPrefs.getBoolean(str, MapActivity.SITE_OVERLAYS_ENABLED_BY_DEFAULT));
			} else if (groupPosition == 4) {
				if (childPosition == 0) {
					cb.setChecked(activityPrefs.getBoolean(str, MapActivity.SCALE_BAR_OVERLAY_ENABLED_BY_DEFAULT));
				} else if (childPosition == 1) {
					cb.setChecked(activityPrefs.getBoolean(str,
							MapActivity.MY_LOCATION_OVERLAY_COMPASS_ENABLED_BY_DEFAULT));
				} else if (childPosition == 2) {
					cb.setChecked(activityPrefs.getBoolean(str, MapActivity.MY_LOCATION_OVERLAY_ENABLED_BY_DEFAULT));
				}
			}
			return v;
		}

		public int getChildrenCount(int groupPosition) {
			if (groupPosition == 0 || groupPosition == 1) {
				return busRoutes.length;
			} else if (groupPosition == 2) {
				return buildingTypes.length;
			} else if (groupPosition == 3) {
				return siteNames.length;
			} else if (groupPosition == 4) {
				return other.length;
			}
			return 0;
		}

		public Object getGroup(int groupPosition) {
			return groupHeadings[groupPosition];
		}

		public int getGroupCount() {
			return groupHeadings.length;
		}

		public long getGroupId(int groupPosition) {
			return groupPosition * 5;
		}

		public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
			View v = null;
			if (convertView != null)
				v = convertView;
			else
				v = inflater.inflate(R.layout.view_group_row, parent, false);
			String gt = (String) getGroup(groupPosition);
			TextView colorGroup = (TextView) v.findViewById(R.id.childname);
			if (gt != null)
				colorGroup.setText(gt);
			return v;
		}

		public boolean hasStableIds() {
			return true;
		}

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

	}

	public boolean onChildClick(ExpandableListView parent, View v, int groupPosition, int childPosition, long id) {
		Log.i(TAG, "Got view dialog click at " + groupPosition + ":" + childPosition);

		SharedPreferences activityPrefs = context.getPreferences(0);

		Editor editor = activityPrefs.edit();

		CheckBox cb = (CheckBox) v.findViewById(R.id.check1);

		String str = MapActivity.PREFERENCES_GROUPS[groupPosition]
				+ MapActivity.PREFERENCES_CHILDREN[groupPosition][childPosition];

		Log.i(TAG, "Putting " + str + " to " + (!cb.isChecked()));
		editor.putBoolean(str, !cb.isChecked());

		editor.commit();

		mAdapter.notifyDataSetInvalidated();

		if (listener != null) {
			listener.onChildClick(parent, v, groupPosition, childPosition, id);
		}

		return true;
	}

}