<?php

class Notiz_model extends DB_Model
{
	/**
	 * Constructor
	 */
	public function __construct()
	{
		parent::__construct();
		$this->dbTable = 'public.tbl_notiz';
		$this->pk = 'notiz_id';
	}
	
	// ------------------------------------------------------------------------------------------------------
	/**
	 * Get a specialization for a prestudent
	 */
	public function getSpecialization($prestudent_id, $titel)
	{
		// Join with the table public.tbl_notizzuordnung using notiz_id
		$this->addJoin('public.tbl_notizzuordnung', 'notiz_id');
		
		return $this->NotizModel->loadWhere(array('prestudent_id' => $prestudent_id, 'titel' => $titel));
	}
	
	/**
	 * Remove a specialization
	 */
	public function rmSpecialization($notiz_id)
	{
		// Loads model Notizzuordnung_model
		$this->load->model('person/Notizzuordnung_model', 'NotizzuordnungModel');
		
		// Start DB transaction
		$this->db->trans_start(false);
		
		$result = $this->delete(array('notiz_id' => $notiz_id));
		if (isSuccess($result))
		{
			$result = $this->NotizzuordnungModel->delete(array('notiz_id' => $notiz_id));
		}
		
		// Transaction complete!
		$this->db->trans_complete();
		
		// Check if everything went ok during the transaction
		if ($this->db->trans_status() === false || isError($result))
		{
			$this->db->trans_rollback();
			$result = error($result->msg, EXIT_ERROR);
		}
		else
		{
			$this->db->trans_commit();
			$result = success('Specialization successfully removed');
		}
		
		return $result;
	}

	/**
	 * Add a specialization for a prestudent
	 */
	public function addSpecialization($prestudent_id, $titel, $text)
	{
		// Loads model Notizzuordnung_model
		$this->load->model('person/Notizzuordnung_model', 'NotizzuordnungModel');
		
		// Start DB transaction
		$this->db->trans_start(false);
		
		$result = $this->insert(array('titel' => $titel, 'text' => $text, 'erledigt' => true));
		$notiz_id = $result->retval;
		if (isSuccess($result))
		{
			$result = $this->NotizzuordnungModel->insert(array('notiz_id' => $notiz_id, 'prestudent_id' => $prestudent_id));
		}
		
		// Transaction complete!
		$this->db->trans_complete();
		
		// Check if everything went ok during the transaction
		if ($this->db->trans_status() === false || isError($result))
		{
			$this->db->trans_rollback();
			$result = error($result->msg, EXIT_ERROR);
		}
		else
		{
			$this->db->trans_commit();
			$result = success($notiz_id);
		}
		
		return $result;
	}

	/**
	 * Add a Notiz for a given person
	 */
	public function addNotizForPerson($person_id, $titel, $text, $erledigt, $verfasser_uid)
	{
		// Loads model Notizzuordnung_model
		$this->load->model('person/Notizzuordnung_model', 'NotizzuordnungModel');

		// Start DB transaction
		$this->db->trans_start(false);

		$result = $this->insert(array('titel' => $titel, 'text' => $text, 'erledigt' => $erledigt, 'verfasser_uid' => $verfasser_uid,
			"insertvon" => $verfasser_uid));

		if (isSuccess($result))
		{
			$notiz_id = $result->retval;
			$result = $this->NotizzuordnungModel->insert(array('notiz_id' => $notiz_id, 'person_id' => $person_id));
		}

		// Transaction complete!
		$this->db->trans_complete();

		// Check if everything went ok during the transaction
		if ($this->db->trans_status() === false || isError($result))
		{
			$this->db->trans_rollback();
			$result = error($result->msg, EXIT_ERROR);
		}
		else
		{
			$this->db->trans_commit();
			$result = success($notiz_id);
		}

		return $result;
	}

	/**
	 * Add a Notiz with Notizuordnung for a given type
	 * @param type type of id for Notizzuordnung (example: person, prestudent, mitarbeiter, projekt, projektphase, projekttask,
	 *        bestellung, lehreinheit, anrechnung)
	 * @param id for Dokumentzuordnung (person_id, prestudent_id, uid, projekt_id...)
	 * @param titel, text, start, ende, erledigt, verfasser_uid, bearbeiter_uid, insertvon Parameter for notiz
	 */
	public function addNotizForType($type, $id, $titel, $text, $insertvon, $dms_id=null, $start=null, $ende=null, $erledigt=false, $verfasser_uid=null, $bearbeiter_uid=null)
	{
		// Loads model Notizzuordnung_model
		$this->load->model('person/Notizzuordnung_model', 'NotizzuordnungModel');

		// Start DB transaction
		$this->db->trans_start(false);

		$result = $this->insert(array('titel' => $titel, 'text' => $text, 'erledigt' => $erledigt, 'verfasser_uid' => $verfasser_uid,
			"insertvon" => $insertvon, 'start' => $start, 'ende' => $ende, 'bearbeiter_uid' => $bearbeiter_uid));

		if (isSuccess($result))
		{
			//cases für alle types

			$notiz_id = $result->retval;

			if($dms_id)
			{
				// Loads model Notizdokument_model
				$this->load->model('person/Notizdokument_model', 'NotizdokumentModel');
				//Todo(manu) change for multiple files
				foreach ($dms_id as $file)
				{
					$result = $this->NotizdokumentModel->insert(array('notiz_id' => $notiz_id, 'dms_id' => $file));
				}

				//single File
				//$result = $this->NotizdokumentModel->insert(array('notiz_id' => $notiz_id, 'dms_id' => $dms_id));
			}

			if ($type == 'person')
				$result = $this->NotizzuordnungModel->insert(array('notiz_id' => $notiz_id, 'person_id' => $id));
			elseif ($type == 'prestudent')
				$result = $this->NotizzuordnungModel->insert(array('notiz_id' => $notiz_id, 'prestudent_id' => $id));
			else
				$result = error($result->msg, "Type nicht vorhanden");
		}

		// Transaction complete!
		$this->db->trans_complete();

		// Check if everything went ok during the transaction
		if ($this->db->trans_status() === false || isError($result))
		{
			$this->db->trans_rollback();
			$result = error($result->msg, EXIT_ERROR);
		}
		else
		{
			$this->db->trans_commit();
			$result = success($notiz_id);
		}

		return $result;
	}

	/**
	 * Add a Notiz for a given person with DMS_id
	 */
	//TODO(manu) add type for Notizzuordnung
	public function addNotizForPersonWithDoc($person_id, $titel, $text, $erledigt, $verfasser_uid, $von, $bis, $dms_id=null)
	{
		// Loads model Notizzuordnung_model
		$this->load->model('person/Notizzuordnung_model', 'NotizzuordnungModel');

		// Start DB transaction
		$this->db->trans_start(false);

		$result = $this->insert(array('titel' => $titel, 'text' => $text, 'erledigt' => $erledigt, 'verfasser_uid' => $verfasser_uid,
			"insertvon" => $verfasser_uid, 'start' => $von, 'ende' => $bis));

		if (isSuccess($result))
		{
			$notiz_id = $result->retval;
			$result = $this->NotizzuordnungModel->insert(array('notiz_id' => $notiz_id, 'person_id' => $person_id));

			if($dms_id)
			{
				// Loads model Notizdokument_model
				$this->load->model('person/Notizdokument_model', 'NotizdokumentModel');
				//Todo(manu) change for multiple files
				$result = $this->NotizdokumentModel->insert(array('notiz_id' => $notiz_id, 'dms_id' => $dms_id));
			}
		}

		// Transaction complete!
		$this->db->trans_complete();

		// Check if everything went ok during the transaction
		if ($this->db->trans_status() === false || isError($result))
		{
			$this->db->trans_rollback();
			$result = error($result->msg, EXIT_ERROR);
		}
		else
		{
			$this->db->trans_commit();
			$result = success($notiz_id);
		}

		return $result;
	}

	/**
	 * gets all Notizen for a person
	 * @param $person_id
	 */
	public function getNotiz($person_id)
	{
		$this->addSelect('public.tbl_notiz.*');
		$this->addJoin('public.tbl_notizzuordnung', 'notiz_id');

		return $this->loadWhere(array('person_id' => $person_id));
	}

	/**
	 * gets all Notizen with Documententries for a certain type and type_id
	 * @param $person_id
	 */
	//Todo(Manu) rewrite in CI-Style
	public function getNotizWithDocEntries($id)
	{
	$type = 'writeFunction';
		//$type_id = 'z.person_id';


		$qry = "
			SELECT 
			    	n.*, count(dms_id) as countDoc, z.notizzuordnung_id
			FROM
			    	public.tbl_notiz n
			JOIN 
			    	    public.tbl_notizzuordnung z USING (notiz_id)
			LEFT JOIN 
			    	    public.tbl_notiz_dokument dok USING (notiz_id)
			LEFT JOIN 
			    	    campus.tbl_dms_version USING (dms_id)
			WHERE 
			   z.person_id = ?
			GROUP BY 
			    notiz_id, z.notizzuordnung_id
		";

		return $this->execQuery($qry, array($id));

	}

	/**
	 * gets all Notizen for a person with a specific title
	 * @param $person_id
	 * @param $titel
	 */
	public function getNotizByTitel($person_id, $titel)
	{
		$this->addSelect('public.tbl_notiz.insertamum as insertnotiz, *');
		// Join with the table public.tbl_notizzuordnung using notiz_id
		$this->addJoin('public.tbl_notizzuordnung', 'notiz_id');
		$this->addJoin('public.tbl_prestudent', 'prestudent_id', 'LEFT');
		$this->addJoin('public.tbl_studiengang', 'studiengang_kz', 'LEFT');
		$this->addOrder('public.tbl_notiz.insertamum', 'DESC');

		return $this->loadWhere(array('public.tbl_notizzuordnung.person_id' => $person_id, 'titel LIKE' => $titel));
	}
	
	/**
	 * Add a Notiz for a given Anrechnung
	 * @param $anrechnung_id
	 * @param $titel
	 * @param $text
	 * @param $verfasser_uid
	 * @return array
	 */
	public function addNotizForAnrechnung($anrechnung_id, $titel, $text, $verfasser_uid)
	{
		// Loads model Notizzuordnung_model
		$this->load->model('person/Notizzuordnung_model', 'NotizzuordnungModel');
		
		// Start DB transaction
		$this->db->trans_start(false);
		
		$result = $this->insert(array(
			'titel' => $titel,
			'text' => $text,
			'erledigt' => true,
			'verfasser_uid' => $verfasser_uid,
			"insertvon" => $verfasser_uid
		));
		
		if (isSuccess($result))
		{
			$notiz_id = $result->retval;
			$result = $this->NotizzuordnungModel->insert(array('notiz_id' => $notiz_id, 'anrechnung_id' => $anrechnung_id));
		}
		
		// Transaction complete!
		$this->db->trans_complete();
		
		// Check if everything went ok during the transaction
		if ($this->db->trans_status() === false || isError($result))
		{
			$this->db->trans_rollback();
			$result = error($result->msg, EXIT_ERROR);
		}
		else
		{
			$this->db->trans_commit();
			$result = success($notiz_id);
		}
		
		return $result;
	}
	
	/**
	 * Get Notizen by Anrechnung and title ordered last first
	 *
	 * @param $anrechnung_id
	 * @return array
	 */
	public function getNotizByAnrechnung($anrechnung_id, $titel = null)
	{
		$this->addJoin('public.tbl_notizzuordnung', 'notiz_id');
		$this->addOrder('insertamum', 'DESC');
		
		if (is_string($titel))
		{
			return $this->loadWhere(array(
				'anrechnung_id' => $anrechnung_id,
				'titel'         => $titel
			));
		}
		
		return $this->loadWhere(array('anrechnung_id' => $anrechnung_id));
	}
	// ------------------------------------------------------------------------------------------------------

}