<?php
class Customer extends Person
{
	/*
	Determines if a given person_id is a customer
	*/
	function exists($person_id)
	{
		$this->db->from('pos_ospos_customers');
		$this->db->where('id',$person_id);
		$query = $this->db->get();
		return ($query->num_rows()==1);
	}

	/*
	Returns all the customers
	*/
	function get_all($limit=10000, $offset=0)
	{
		$this->db->from('customers');
		$this->db->join('people','customers.person_id=people.person_id');
		$this->db->where('deleted',0);
		$this->db->order_by("last_name", "asc");
		$this->db->limit($limit);
		$this->db->offset($offset);
		return $this->db->get();
	}

	function count_all()
	{
		$this->db->from('customers');
		$this->db->where('deleted',0);
		return $this->db->count_all_results();
	}

	/*
	Gets information about a particular customer
	*/
	function get_info($customer_id)
	{
		$this->db->from('pos_ospos_customers');
		$this->db->where('id',$customer_id);
		$query = $this->db->get();

		if($query->num_rows()==1)
		{
			return $query->row();
		}
	}
	function get_info_for_edit($customer_id)
	{

		$this->db->from('people');
		$this->db->where('person_id',$customer_id);
		$query = $this->db->get();
		if($query->num_rows()==1)
		{
			return $query->row();
		}
	}
	function country_list()
	{
		$this->db->set_dbprefix('');
		$query = $this->db->query("
                    SELECT SUBSTR(name,1,31) As name
                    FROM pos_countries
                    WHERE inactive=0
					ORDER BY name ASC");
		foreach ($query->result() as $row) {
				$cuntry_list[$row->name] = $row->name;
		}
		$this->db->set_dbprefix('ospos_');

		return $cuntry_list;
	}

	function customer_previous_due($customer_id){
		$this->db->from('pos_ospos_customers');
		$this->db->where('id',$customer_id);
		$by_name = $this->db->get();
		$total_due=0;
		foreach($by_name->result() as $row){
			$total_due=$total_due+$row->previous_due;
		}

		return $total_due;
	}


	/*
	Gets information about multiple customers
	*/
	function get_multiple_info($customer_ids)
	{
		$this->db->from('customers');
		$this->db->join('people', 'people.person_id = customers.person_id');
		$this->db->where_in('customers.person_id',$customer_ids);
		$this->db->order_by("last_name", "asc");
		return $this->db->get();
	}

	/*
	Inserts or updates a customer
	*/
	function save(&$person_data, &$customer_data,$customer_id=false)
	{
		$success=false;
		//Run these queries as a transaction, we want to make sure we do all or nothing
		$this->db->trans_start();

		if(parent::save($person_data,$customer_id))
		{
			if (!$customer_id or !$this->exists($customer_id))
			{
				$customer_data['person_id'] = $person_data['person_id'];
				$success = $this->db->insert('customers',$customer_data);
			}
			else
			{
				$this->db->where('person_id', $customer_id);
				$success = $this->db->update('customers',$customer_data);
			}

		}

		$this->db->trans_complete();
		return $success;
	}

	/*
	Deletes one customer
	*/
	function delete($customer_id)
	{
		$this->db->where('person_id', $customer_id);
		return $this->db->update('customers', array('deleted' => 1));
	}

	/*
	Deletes a list of customers
	*/
	function delete_list($customer_ids)
	{
		$this->db->where_in('person_id',$customer_ids);
		return $this->db->update('customers', array('deleted' => 1));
	}

	/*
	Get search suggestions to find customers
	*/
	function get_search_suggestions($search,$limit=25)
	{
		$suggestions = array();

		$this->db->from('customers');
		$this->db->join('people','customers.person_id=people.person_id');
		$this->db->where("(first_name LIKE '%".$this->db->escape_like_str($search)."%' or
		last_name LIKE '%".$this->db->escape_like_str($search)."%' or 
		CONCAT(`first_name`,' ',`last_name`) LIKE '%".$this->db->escape_like_str($search)."%') and deleted=0");
		$this->db->order_by("last_name", "asc");
		$by_name = $this->db->get();
		foreach($by_name->result() as $row)
		{
			$suggestions[]=$row->first_name.' '.$row->last_name;
		}

		$this->db->from('customers');
		$this->db->join('people','customers.person_id=people.person_id');
		$this->db->where('deleted',0);
		$this->db->like("email",$search);
		$this->db->order_by("email", "asc");
		$by_email = $this->db->get();
		foreach($by_email->result() as $row)
		{
			$suggestions[]=$row->email;
		}

		$this->db->from('customers');
		$this->db->join('people','customers.person_id=people.person_id');
		$this->db->where('deleted',0);
		$this->db->like("phone_number",$search);
		$this->db->order_by("phone_number", "asc");
		$by_phone = $this->db->get();
		foreach($by_phone->result() as $row)
		{
			$suggestions[]=$row->phone_number;
		}

		$this->db->from('customers');
		$this->db->join('people','customers.person_id=people.person_id');
		$this->db->where('deleted',0);
		$this->db->like("account_number",$search);
		$this->db->order_by("account_number", "asc");
		$by_account_number = $this->db->get();
		foreach($by_account_number->result() as $row)
		{
			$suggestions[]=$row->account_number;
		}

		//only return $limit suggestions
		if(count($suggestions > $limit))
		{
			$suggestions = array_slice($suggestions, 0,$limit);
		}
		return $suggestions;
	}

	/*
	Get search suggestions to find customers
	*/
	function get_customer_search_suggestions($search,$limit=25)
	{
		$suggestions = array();

		$this->db->from('customers');
		$this->db->join('people','customers.person_id=people.person_id');
		$this->db->where("(first_name LIKE '%".$this->db->escape_like_str($search)."%' or
		last_name LIKE '%".$this->db->escape_like_str($search)."%' or 
		CONCAT(`first_name`,' ',`last_name`) LIKE '%".$this->db->escape_like_str($search)."%') and deleted=0");
		$this->db->order_by("last_name", "asc");
		$by_name = $this->db->get();
		foreach($by_name->result() as $row)
		{
			$suggestions[]=$row->person_id.'|'.$row->first_name.' '.$row->last_name;
		}

		$this->db->from('customers');
		$this->db->join('people','customers.person_id=people.person_id');
		$this->db->where('deleted',0);
		$this->db->like("account_number",$search);
		$this->db->order_by("account_number", "asc");
		$by_account_number = $this->db->get();
		foreach($by_account_number->result() as $row)
		{
			$suggestions[]=$row->person_id.'|'.$row->account_number;
		}

		//only return $limit suggestions
		if(count($suggestions > $limit))
		{
			$suggestions = array_slice($suggestions, 0,$limit);
		}
		return $suggestions;

	}
	function get_customer_search_suggestions_shawpon($search,$limit=25)
	{
		$suggestions = array();

		$this->db->from('pos_ospos_customers');
		$this->db->where("(first_name LIKE '%".$this->db->escape_like_str($search)."%' or last_name LIKE '%".$this->db->escape_like_str($search)."%' or CONCAT(`first_name`,' ',`last_name`) LIKE '%".$this->db->escape_like_str($search)."%' or phone_number LIKE '%".$this->db->escape_like_str($search)."%' or gs_card_no LIKE '%".$this->db->escape_like_str($search)."%') and deleted=0 AND status=2");
		$this->db->order_by("last_name", "asc");




		$by_name = $this->db->get();
		foreach($by_name->result() as $row)
		{
			if(trim($row->gs_card_no)){
				$suggestions[]=$row->id.'|'.$row->first_name.' '.$row->last_name.' ('.$row->phone_number.') CARD: '.trim($row->gs_card_no);
			}else{
				$suggestions[]=$row->id.'|'.$row->first_name.' '.$row->last_name.' </br>('.$row->phone_number.') CARD: XXXXXX';
			}
		}
		//only return $limit suggestions
		if(count($suggestions > $limit))
		{
			$suggestions = array_slice($suggestions, 0,$limit);
		}
		return $suggestions;

	}
	/*
	Preform a search on customers
	*/
	function search($search)
	{
		$this->db->from('customers');
		$this->db->join('people','customers.person_id=people.person_id');
		$this->db->where("(first_name LIKE '%".$this->db->escape_like_str($search)."%' or
		last_name LIKE '%".$this->db->escape_like_str($search)."%' or 
		email LIKE '%".$this->db->escape_like_str($search)."%' or 
		phone_number LIKE '%".$this->db->escape_like_str($search)."%' or 
		account_number LIKE '%".$this->db->escape_like_str($search)."%' or 
		CONCAT(`first_name`,' ',`last_name`) LIKE '%".$this->db->escape_like_str($search)."%') and deleted=0");		
		$this->db->order_by("last_name", "asc");

		return $this->db->get();
	}

	function get_user_points($userId){
		$this->db->select_sum('point');
		$this->db->from('pos_ospos_customers');
		$this->db->where('id', $userId);
		$query = $this->db->get();
		return $query->row();
	}

}
?>
