<?php

class ParTCP_Data_Object {
	
	public $rootDir;
	public $objectName;
	public $dirName;
	public $baseDir = '';


	public function __construct( $rootDir, $objectName, $dirName ){
		$this->rootDir = $rootDir;
		$this->objectName = $objectName;
		$this->dirName = $dirName;
	}


	public function set_base_dir( $dir ){
		$this->baseDir = $dir;
	}


	public function get_dir( $id, $absolute = FALSE ){
		$dir = ( $this->baseDir ? "{$this->baseDir}/" : '' ) . "{$this->dirName}/{$id}";
		return $absolute ? "{$this->rootDir}/{$dir}" : $dir;
	}


	public function get_list(){
		$dir = ( $this->baseDir ? "{$this->baseDir}/" : '' ) . $this->dirName;
		if ( ! file_exists( $dir ) ){
			return array ();
		}
		$listing = scandir( $dir );
		$objectList = array ();
		foreach ( $listing as $objectId ){
			if ( $objectId[0] != '.' ){
				$objectId = ( $this->baserDir ? "{$this->baserDir}/" : '' ) . $objectId;
				if ( $data = $this->get_data( $objectId ) ){
					$objectList[] = $data;
				}
			}
		}
		return $objectList;
	}


	public function get_data( $id ){
		$dir = $this->get_dir( $id, TRUE );
		if ( ! is_dir( $dir ) ){
			return FALSE;
		}
		$listing = glob( "{$dir}/[0-9]*", GLOB_NOSORT );
		if ( empty( $listing ) ){
			return FALSE;
		}
		rsort( $listing );
		$receipt = yaml_parse( file_get_contents( "{$listing[0]}" ) );
		$element = "{$this->objectName}-Data";
		if ( empty( $receipt[ $element ] ) ){
			return FALSE;
		}
		$data = $receipt[ $element ];
		if ( method_exists( $this, 'update_calculated_fields' ) ){
			call_user_func( [ $this, 'update_calculated_fields' ], $data );
		}
		return $data;
	}


	public function purge_data( $data ){
		$validKeys = [
			'id' => 0,
			'name' => 0,
			'date' => 0,
			'client_data' => 0,
			'estimated_turnout' => 0,
			'naming_rules' => 0,
			'credential_rules' => 0,
			'lot_code_rules' => 0,
		];
		return array_intersect_key( $data, $validKeys );
	}

}

// end of file lib/data_objects.class.php