<?php

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */

/**
 * Description of author
 *
 * @author may
 */
class author {
    //put your code here
   protected $PDO;
   

   private static function _cleanCitation (&$citation) {
       // make sure it is in form Surname, N. no leading/trailing whitespaces, no double whitespaces,...)
       // also remove dot (and add it again, later)
       $t = trim ($citation, " \n\r\t\v\0.");
       $parts = explode (",", $t);
       
       foreach ($parts as $off=>$part) {
           $parts[$off] = trim ($part,  " \n\r\t\v\0.");
       }
       
       $citation = $parts[0] .', ' .$parts[1] .'.';
   }
   
   // check if we have author from the citation
   public static function isAuthor($citation) {
       global $PDO;
       
       author::_cleanCitation($citation);
       
       try {
            $stmt = $PDO->prepare("SELECT id FROM l_person where citation=:citation");
            $stmt->execute(array($citation));
            
            // this instead of rowCount to make in compatible with non-mysql DB
            if ($r = $stmt->fetch(PDO::FETCH_NUM)) {
                    return $r[0];
            }
            return false;

       }
       catch (exception $ex) {
          common::except ('Err: ' .$ex .' in ' .__DIR__ .'/' .__FILE__ .':' .__LINE__);
       }  
       return false;
    }
   
   public static function findOrAdd ($name1="", $name2="", $surname1="", $surname2="", $citation="") {
       
       $id = author::isAuthorByName($name1, $name2, $surname1, $surname2, $citation);
       
       if ($id == false) {
           $id = author::insertAuthorDetailed ($name1, $name2, $surname1, $surname2, $citation);
       }
       
       return $id;
   }
    
    
/**
 * check if we have an author by this name, surname, name2, surname2, citation
 * 
 * @param type $name1
 * @param type $name2
 * @param type $surname1
 * @param type $surname2
 * @param type $citation
 * @return boolean
 */
   public static function isAuthorByName($name1="", $name2="", $surname1="", $surname2="", $citation="") {
       
       global $PDO;
       
       $citation = trim ($citation);
       
       try {
            $stmt = $PDO->prepare("SELECT id FROM l_person where first_name=:name1 AND middle_name=:name2 AND last_name=:surname1 AND last_name_2=:surname2 AND citation=:citation");
            $stmt->execute(array('name1' => $name1, 'name2' => $name2, 'surname1' => $surname1, 'surname2' => $surname2, 'citation' => $citation));
            
            // this instead of rowCount to make in compatible with non-mysql DB
            if ($r = $stmt->fetch(PDO::FETCH_NUM)) {
                    return $r[0];
            }
            else {
                unset ($stmt);
                // maybe citation is off?
                $stmt = $PDO->prepare("SELECT id FROM l_person where first_name=:name1 AND middle_name=:name2 AND last_name=:surname1 AND last_name_2=:surname2");
                $stmt->execute(array('name1' => $name1, 'name2' => $name2, 'surname1' => $surname1, 'surname2' => $surname2));

                // this instead of rowCount to make in compatible with non-mysql DB
                if ($r = $stmt->fetch(PDO::FETCH_NUM)) {
                    return $r[0];
                }                
            }
            return false;

       }
       catch (exception $ex) {
          common::except ('Err: ' .$ex .' in ' .__DIR__ .'/' .__FILE__ .':' .__LINE__);
       }  
       return false;
    }    
    
/**
 * Insert author by name, surname, name2, surname2, citation (email later :))
 * 
 * @param type $name1 first name
 * @param type $name2 middle name
 * @param type $surname1 last name
 * @param type $surname2 last name 2
 * @param type $citation citation
 * @return boolean
 */    
    public static function insertAuthorDetailed ($name1, $name2, $surname1, $surname2, $citation) {
        global $PDO; 
        
        $citation = trim ($citation);
        
        try {
            $stmt = $PDO->prepare("INSERT INTO l_person (first_name, middle_name, last_name, last_name_2, citation) VALUES (:first_name, :middle_name, :last_name, :last_name_2, :citation)");
            $stmt->execute(array(
                'first_name' => $name1,
                'middle_name' => $name2,
                'last_name' => $surname1,
                'last_name_2' => $surname2,
                'citation' => $citation
            ));
            
            return $PDO->lastInsertId();

        }
        catch (exception $ex) {
            common::except ('Err: ' .$ex .' in ' .__DIR__ .'/' .__FILE__ .':' .__LINE__);
            return false;
        }          
    }
        
    // $author is short version from citation
    public static function insertAuthor ($citation) {
        global $PDO; 
        
        author::_cleanCitation($citation);
        $nameSurname = explode (",", $citation);
        
        try {
            $stmt = $PDO->prepare("INSERT INTO l_person (citation, last_name, first_name, editMe) VALUES (:citation, :last_name, :first_name, 'Y')");
            $stmt->execute(array(
                'citation' => $citation,
                'last_name' => trim($nameSurname[0]),
                'first_name' => trim($nameSurname[1])
            ));
            
            return $PDO->lastInsertId();

        }
        catch (exception $ex) {
            common::except ('Err: ' .$ex .' in ' .__DIR__ .'/' .__FILE__ .':' .__LINE__);
            return false;
        }  
    }
    
    
}