/android/import-contacts

/*

 * ContactsBackend.java

 *

 * Copyright (C) 2012 Tim Marston <tim@ed.am>

 *

 * This file is part of the Import Contacts program (hereafter referred

 * to as "this program"). For more information, see

 * http://ed.am/dev/android/import-contacts

 *

 * 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 3 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, see <http://www.gnu.org/licenses/>.

 */

package am.ed.importcontacts;

import java.util.HashMap;

import java.util.HashSet;

import java.util.Iterator;

import am.ed.importcontacts.ContactsCache.CacheIdentifier;

import am.ed.importcontacts.Importer.ContactData;

import android.app.Activity;

import android.content.ContentUris;

import android.content.ContentValues;

import android.database.Cursor;

import android.net.Uri;

import android.provider.Contacts;

@SuppressWarnings( "deprecation" )

public class ContactsBackend implements Backend

{

	private Activity _activity = null;

	ContactsBackend( Activity activity )

	{

		_activity = activity;

	}

	@Override

	public void populateCache( ContactsCache cache )

	{

		Cursor cur;

		// set of contact ids that we have not yet added

		HashSet< Long > unadded_ids = new HashSet< Long >();

		// notes

		HashMap< Long, String > notes = new HashMap< Long, String >();

		// get all contacts

		cur = _activity.managedQuery( Contacts.People.CONTENT_URI,

			new String[] {

				Contacts.People._ID,

				Contacts.People.NAME,

				Contacts.People.NOTES,

			}, null, null, null );

		while( cur.moveToNext() ) {

			Long id = cur.getLong(

				cur.getColumnIndex( Contacts.People._ID ) );

			String name = cur.getString(

					cur.getColumnIndex( Contacts.People.NAME ) );

			String note = cur.getString(

					cur.getColumnIndex( Contacts.People.NOTES ) );

			// if we can, add a lookup for the contact id by name

			CacheIdentifier cache_identifier = CacheIdentifier.factory(

				CacheIdentifier.Type.NAME, name );

			if( cache_identifier != null ) {

				cache.addLookup( cache_identifier, id );

				// add any associated notes (this would get done at the end but,

				// since it is most common that contacts are identified by name,

				// it is worth doing a special case here

				cache.addAssociatedNote( id, note );

			}

			else

			{

				// record that a lookup for this contact's id still needs to be

				// added by some other means

				unadded_ids.add( id );

				// store this contact's notes, so that they can be added to the

				// cache at the end, after this contact has been added (by

				// whatever identifying means)

				if( note != null && note.length() > 0 )

					notes.put( id, note );

			}

		}

		// get contact organisations, primary ones first

		cur = _activity.managedQuery( Contacts.Organizations.CONTENT_URI,

			new String[] {

				Contacts.Phones.PERSON_ID,

				Contacts.Organizations.COMPANY,

			}, null, null, Contacts.Organizations.ISPRIMARY + " DESC" );

		while( cur.moveToNext() ) {

			Long id = cur.getLong( cur.getColumnIndex(

				Contacts.Organizations.PERSON_ID ) );

			String organisation = cur.getString(

				cur.getColumnIndex( Contacts.Organizations.COMPANY ) );

			// if this is an organisation name for a contact for whom we have

			// not added a lookup, add a lookup for the contact id by

			// organisation

			if( unadded_ids.contains( id ) ) {

				CacheIdentifier cache_identifier = CacheIdentifier.factory(

					CacheIdentifier.Type.ORGANISATION, organisation );

				if( cache_identifier != null ) {

					cache.addLookup( cache_identifier, id );

					unadded_ids.remove( id );

				}

			}

			// add associated data

			cache.addAssociatedOrganisation( id, organisation );

		}

		// get all phone numbers, primary ones first

		cur = _activity.managedQuery( Contacts.Phones.CONTENT_URI,

			new String[] {

				Contacts.Phones.PERSON_ID,

				Contacts.Phones.NUMBER,

			}, null, null, Contacts.Phones.ISPRIMARY + " DESC" );

		while( cur.moveToNext() ) {

			Long id = cur.getLong(

				cur.getColumnIndex( Contacts.Phones.PERSON_ID ) );

			String number = cur.getString(

				cur.getColumnIndex( Contacts.Phones.NUMBER ) );

			// if this is a number for a contact for whom we have not

			// added a lookup, add a lookup for the contact id by phone

			// number

			if( unadded_ids.contains( id ) ) {

				CacheIdentifier cache_identifier = CacheIdentifier.factory(

					CacheIdentifier.Type.PRIMARY_NUMBER, number );

				if( cache_identifier != null ) {

					cache.addLookup( cache_identifier, id );

					unadded_ids.remove( id );

				}

			}

			// add associated data

			cache.addAssociatedNumber( id, number );

		}

		// now get all email addresses, primary ones first, and postal addresses

		cur = _activity.managedQuery( Contacts.ContactMethods.CONTENT_URI,

			new String[] {

				Contacts.ContactMethods.PERSON_ID,

				Contacts.ContactMethods.DATA,

				Contacts.ContactMethods.KIND,

			}, Contacts.ContactMethods.KIND + " IN( ?, ? )",

			new String[] {

				"" + Contacts.KIND_EMAIL,

				"" + Contacts.KIND_POSTAL,

			}, Contacts.ContactMethods.ISPRIMARY + " DESC" );

		while( cur.moveToNext() ) {

			Long id = cur.getLong(

				cur.getColumnIndex( Contacts.ContactMethods.PERSON_ID ) );

			int kind = cur.getInt(

				cur.getColumnIndex( Contacts.ContactMethods.KIND ) );

			if( kind == Contacts.KIND_EMAIL )

			{

				String email = cur.getString(

					cur.getColumnIndex( Contacts.ContactMethods.DATA ) );

				// if this is an email address for a contact for whom we have

				// not added a lookup, add a lookup for the contact id by email

				// address

				if( unadded_ids.contains( id ) ) {

					CacheIdentifier cache_identifier = CacheIdentifier.factory(

						CacheIdentifier.Type.PRIMARY_EMAIL, email );

					if( cache_identifier != null ) {

						cache.addLookup( cache_identifier, id );

						unadded_ids.remove( id );

					}

				}

				// add associated data

				cache.addAssociatedEmail( id, email );

			}

			else if( kind == Contacts.KIND_POSTAL )

			{

				String address = cur.getString(

					cur.getColumnIndex( Contacts.ContactMethods.DATA ) );

				// add associated data

				cache.addAssociatedAddress( id, address );

			}

		}

		// finally, add the notes that we stored earlier (we have to add these

		// at the end because we can't be sure which piece of contact data will

		// cause the contact to be added to the cache

		Iterator< Long > i = notes.keySet().iterator();

		while( i.hasNext() ) {

			Long id = i.next();

			cache.addAssociatedNote( id, notes.get( id ) );

		}

	}

	@Override

	public void deleteContact( Long id )

	{

		Uri contact_uri =

			ContentUris.withAppendedId( Contacts.People.CONTENT_URI, id );

		_activity.getContentResolver().delete( contact_uri, null, null );

	}

	@Override

	public Long addContact( String name ) throws ContactCreationException

	{

		ContentValues values = new ContentValues();

		if( name != null )

			values.put( Contacts.People.NAME, name );

		Uri contact_uri = _activity.getContentResolver().insert(

			Contacts.People.CONTENT_URI, values );

		Long id = ContentUris.parseId( contact_uri );

		if( id == 0 )

			throw new ContactCreationException();

		// try to add them to the "My Contacts" group

		try {

			Contacts.People.addToMyContactsGroup(

				_activity.getContentResolver(), id );

		}

		catch( IllegalStateException e ) {

			// ignore any failure

		}

		return id;

	}

	private int convertTypeToBackendType( Class< ? > cls, int type )

		throws ContactCreationException

	{

		if( cls == Contacts.Phones.class )

		{

			switch( type )

			{

			case ContactData.TYPE_HOME:

				return Contacts.Phones.TYPE_HOME;

			case ContactData.TYPE_WORK:

				return Contacts.Phones.TYPE_WORK;

			case ContactData.TYPE_MOBILE:

				return Contacts.Phones.TYPE_MOBILE;

			case ContactData.TYPE_FAX_HOME:

				return Contacts.Phones.TYPE_FAX_HOME;

			case ContactData.TYPE_FAX_WORK:

				return Contacts.Phones.TYPE_FAX_WORK;

			case ContactData.TYPE_PAGER:

				return Contacts.Phones.TYPE_PAGER;

			}

		}

		else if( cls == Contacts.ContactMethods.class )

		{

			switch( type )

			{

			case ContactData.TYPE_HOME:

				return Contacts.ContactMethods.TYPE_HOME;

			case ContactData.TYPE_WORK:

				return Contacts.ContactMethods.TYPE_WORK;

			}

		}

		// still here?

		throw new ContactCreationException();

	}

	@Override

	public void addContactPhone( Long id, String number,

		ContactData.PreferredDetail data ) throws ContactCreationException

	{

		Uri contact_phones_uri = Uri.withAppendedPath(

			ContentUris.withAppendedId( Contacts.People.CONTENT_URI, id ),

			Contacts.People.Phones.CONTENT_DIRECTORY );

		ContentValues values = new ContentValues();

		values.put( Contacts.Phones.TYPE,

			convertTypeToBackendType( Contacts.Phones.class,

				data.getType() ) );

		values.put( Contacts.Phones.NUMBER, number );

		if( data.isPreferred() )

			values.put( Contacts.Phones.ISPRIMARY, 1 );

		_activity.getContentResolver().insert( contact_phones_uri, values );

	}

	@Override

	public void addContactEmail( Long id, String email,

		ContactData.PreferredDetail data ) throws ContactCreationException

	{

		Uri contact_contact_methods_uri = Uri.withAppendedPath(

			ContentUris.withAppendedId( Contacts.People.CONTENT_URI, id ),

			Contacts.People.ContactMethods.CONTENT_DIRECTORY );

		ContentValues values = new ContentValues();

		values.put( Contacts.ContactMethods.KIND, Contacts.KIND_EMAIL );

		values.put( Contacts.ContactMethods.DATA, email );

		values.put( Contacts.ContactMethods.TYPE,

			convertTypeToBackendType( Contacts.ContactMethods.class,

				data.getType() ) );

		if( data.isPreferred() )

			values.put( Contacts.ContactMethods.ISPRIMARY, 1 );

		_activity.getContentResolver().insert( contact_contact_methods_uri,

			values );

	}

	@Override

	public void addContactAddresses( Long id, String address,

		ContactData.TypeDetail data ) throws ContactCreationException

	{

		Uri contact_contact_methods_uri = Uri.withAppendedPath(

			ContentUris.withAppendedId( Contacts.People.CONTENT_URI, id ),

			Contacts.People.ContactMethods.CONTENT_DIRECTORY );

		ContentValues values = new ContentValues();

		values.put( Contacts.ContactMethods.KIND, Contacts.KIND_POSTAL );

		values.put( Contacts.ContactMethods.DATA, address );

		values.put( Contacts.ContactMethods.TYPE,

			convertTypeToBackendType( Contacts.ContactMethods.class,

				data.getType() ) );

		_activity.getContentResolver().insert( contact_contact_methods_uri,

			values );

	}

	@Override

	public void addContactOrganisation( Long id, String organisation,

		ContactData.ExtraDetail data ) throws ContactCreationException

	{

		ContentValues values = new ContentValues();

		values.put( Contacts.Organizations.PERSON_ID, id );

		values.put( Contacts.Organizations.COMPANY, organisation );

		values.put( Contacts.ContactMethods.TYPE,

			Contacts.OrganizationColumns.TYPE_WORK );

		if( data.getExtra() != null )

			values.put( Contacts.Organizations.TITLE, data.getExtra() );

		_activity.getContentResolver().insert(

			Contacts.Organizations.CONTENT_URI, values );

	}

	@Override

	public void addContactNote( Long id, String note )

		throws ContactCreationException

	{

		ContentValues values = new ContentValues();

		values.put( Contacts.People.NOTES, note );

		_activity.getContentResolver().update(

			ContentUris.withAppendedId( Contacts.People.CONTENT_URI, id ),

			values, null, null );

	}

}