<?php

//fetch.php
// id, filename, lens, legende, copyright, title,creator,keywords

$column = array("id", "filename", "lens", "legende", "copyright", "title", "creator", "keywords");

$query = "SELECT * FROM photos ";

if(isset($_POST["search"]["value"]))
{
 $query .= '
 WHERE filename LIKE "%'.$_POST["search"]["value"].'%" 
 OR lens LIKE "%'.$_POST["search"]["value"].'%" 
 OR speed LIKE "%'.$_POST["search"]["value"].'%" 
 ';
}

if(isset($_POST["order"]))
{
 $query .= 'ORDER BY '.$column[$_POST['order']['0']['column']].' '.$_POST['order']['0']['dir'].' ';
}
else
{
 $query .= 'ORDER BY id DESC ';
}
$query1 = '';

if($_POST["length"] != -1)
{
 $query1 = 'LIMIT ' . $_POST['start'] . ', ' . $_POST['length'];
}


$conn = new PDO('sqlite:../db_photo.sqlite3');

$stmt = $conn->prepare($query);
$stmt->execute();
$res = $stmt->fetchAll();
$number_filter_row = count($res);

$stmt = $conn->prepare($query . $query1);
$stmt->execute();
$result = $stmt->fetchAll(PDO::FETCH_ASSOC);
    
    
$data = array();

foreach($result as $row) {
 $sub_array = array();
 $sub_array[] = $row['id'];
 $sub_array[] = $row['filename'];
 $sub_array[] = $row['lens'];
 $sub_array[] = $row['legende'];
 $sub_array[] = $row['copyright'];
 $sub_array[] = $row['title'];
 $sub_array[] = $row['creator'];
 $sub_array[] = $row['keywords'];
 $data[] = $sub_array;
}
// id, filename, lens, legende, copyright, title,creator,keywords

function count_all_data($connect) {
 $connect = new PDO('sqlite:../db_photo.sqlite3');
 $query = "SELECT * FROM photos";
 $statement = $connect->prepare($query);
 $statement->execute();
 return $statement->rowCount();
}

$output = array(
 'draw'   => intval($_POST['draw']),
 'recordsTotal' => count_all_data($conn),
 'recordsFiltered' => $number_filter_row,
 'data'   => $data
);

echo json_encode($output);

?>