<?php

	namespace database\repo;
	use \database\core\Repo_i;

	class emergency extends Repo_i{


		/* (1) Return all emergencies in database
		*
		* @limit<int>							Nb max voulu
		*
		* @return emergencies<array>			The emergency list
		*										FALSE on error
		*
		---------------------------------------------------------*/
		public function getAll(int $limit){

			/* (1) Statement */
			$st = $this->pdo->query("SELECT * FROM `emergency` ORDER BY `timestamp` DESC LIMIT $limit");

			/* (2) Fetched data */
			return $st->fetchAll();

		}


		/* (2) Return a emergency by its `id_emergency`
		*
		* @id_emergency<int>				The emergency UID
		*
		* @return emergency<array>			The emergency if found
		*									FALSE on error
		*
		---------------------------------------------------------*/
		public function getById(int $id_emergency){

			/* (1) Prepare Statement */
			$pst = $this->pdo->prepare("SELECT * FROM `emergency` WHERE `id_emergency` = :id_emergency LIMIT 1");

			/* (2) Bind variables */
			$pst->bindParam(':id_emergency', $id_emergency, \PDO::PARAM_INT);

			/* (3) Execute */
			if( !$pst->execute() ) return false; // if error -> send FALSE

			/* (4) Fetched data */
			return $pst->fetch();

		}


		/* (3) Creates a new emergency
		*
		* @id_user<int|null>					The user ID if defined
		* @name<String>							The user name (if not connected)
		* @message<String>						The message content
		* @type<int>							The message type
		* @latitude<int>						Sender latitude
		* @longitude<int>						Sender longitude
		* @dep<int>								Departement id
		*
		* @return id_created<int>		UID of the created emergency
		* 								FALSE on error
		*
		---------------------------------------------------------*/
		public function create($id_user, String $name, String $message, int $type, float $latitude, float $longitude, $dep){

			/* (2) Create the emergency
			---------------------------------------------------------*/
			/* (1) Prepare Statement */
			$pst = $this->pdo->prepare("INSERT INTO `emergency`(`id_emergency`, `id_user`, `timestamp`, `name`, `message`, `type`, `latitude`, `longitude`, `dep`)
														 VALUES(DEFAULT,        :id_user,   DEFAULT,    :name,  :message,  :type,  :latitude,  :longitude,  :dep)");

			/* (3) Bind variables */
			$pst->bindParam(':id_user',   $id_user,   \PDO::PARAM_INT);
			$pst->bindParam(':name',      $name,      \PDO::PARAM_STR, 50);
			$pst->bindParam(':message',   $message,   \PDO::PARAM_STR);
			$pst->bindParam(':type',      $type,      \PDO::PARAM_INT);
			$pst->bindParam(':latitude',  $latitude,  \PDO::PARAM_STR);
			$pst->bindParam(':longitude', $longitude, \PDO::PARAM_STR);
			$pst->bindParam(':dep',       $dep,       \PDO::PARAM_STR, 2);

			/* (4) Execute -> if error return FALSE */
			if( !$pst->execute() ) return false;


			/* (2) Get the id
			---------------------------------------------------------*/
			/* (1) Get last inserted id */
			return $this->pdo->lastInsertId();

		}


		/* (4) Updates an emergency
		*
		* @id_emergency<int>					The emergency UID
		* @new_msg<String>						New message content
		*
		* @return updated<bool>					True if updated
		*
		---------------------------------------------------------*/
		public function update(int $id_emergency, String $new_msg){

			/* (1) Update the emergency
			---------------------------------------------------------*/
			/* (1) Prepare Statement */
			$pst = $this->pdo->prepare("UPDATE `emergency` SET `message` = :new_msg WHERE `id_emergency` = :id_emergency");

			/* (3) Bind variables */
			$pst->bindParam(':id_emergency', $id_emergency, \PDO::PARAM_INT);
			$pst->bindParam(':new_msg',      $new_msg,      \PDO::PARAM_STR);

			/* (4) Execute -> if error return FALSE */
			return $pst->execute();

		}


		/* (5) Removes an emergency
		*
		* @id_emergency<int>					The emergency UID
		*
		* @return removed<bool>					True has been removed
		*
		---------------------------------------------------------*/
		public function remove(int $id_emergency){

			/* (1) Update the emergency
			---------------------------------------------------------*/
			/* (1) Prepare Statement */
			$pst = $this->pdo->prepare("DELETE FROM `emergency` WHERE `id_emergency` = :id_emergency");

			/* (2) Bind variables */
			$pst->bindParam(':id_emergency', $id_emergency, \PDO::PARAM_INT);

			/* (3) Execute -> if error return FALSE */
			return $pst->execute();

		}


	}