<?php
require_once('Models/FacilityDataSet.php');
require_once("Models/Paginator.php");
// If page loads empty, set initial headers
if(!isset($_GET['page']) || !(isset($_GET['dir'])) || !(isset($_GET['sort']))) {
    header("Location: ?sort=1&dir=asc&page=0");
    exit;
}

$filterArray = [
    0 => "",
    1 => "",
    2 => "",
    3 => "",
    4 => "",
    5 => "",
    6 => "",
    7 => "",
    8 => ""
];
$sortArray = [
    0 => "",
    1 => "",
    2 => "",
    3 => "",
    4 => "",
    5 => "",
    6 => "",
    7 => "",
    8 => ""
];

$rowLimit = 5;

$filterArray[$_GET['category'] ?? null] = $_GET['term'] ?? null;
$sortArray[$_GET['sort'] ?? null] = $_GET['dir'] ?? null;

$facilityDataSet = new FacilityDataSet();
if(isset($_POST['paginatorButton'])) {
    var_dump($_POST);
}
if ((isset($_POST['filter']) && isset($_POST['filterCat']) && (isset($_POST['dir'])) && (isset($_POST['sort'])))) {
    $filter = filter_input(INPUT_POST, 'filter', FILTER_SANITIZE_FULL_SPECIAL_CHARS) ?? '';
    $filterKey = filter_input(INPUT_POST, 'filterCat', FILTER_SANITIZE_FULL_SPECIAL_CHARS) ?? '';
    $direction = filter_input(INPUT_POST, 'dir', FILTER_SANITIZE_FULL_SPECIAL_CHARS) ?? 'asc'; // Default to 'asc'
    $sortKey = filter_input(INPUT_POST, 'sort', FILTER_SANITIZE_FULL_SPECIAL_CHARS) ?? '1'; // Default to 'title'
    $page = filter_input(INPUT_POST, 'paginationButton', FILTER_SANITIZE_NUMBER_INT) ?? 0; // Default page to 0 on new filter
    $filterArray[$filterKey] = $filter;
    $sortArray[$sortKey] = $direction;
    var_dump($filterArray);
    //redirect($filter, $filterArray, $direction, $sortArray, $page);
}
function redirect($filter, $filterArray, $direction, $sortArray, $page) : void {
    // Set the filter and generate the new URI
    //$filterSet = $facilityDataSet->setFilterUri($applyFilters, array_search($applyFilters, $filterArray));
    $filterSet = setUri($filter, array_search($filter, $filterArray), $direction, array_search($direction, $sortArray), $page);
    // Parse the existing query string
    $queryParams = [];
    parse_str($filterSet["newUri"], $queryParams);

    // Add or overwrite the 'page' parameter
    $queryParams['page'] = filter_input(INPUT_GET, 'page', FILTER_VALIDATE_INT, [
        'options' => ['default' => 0, 'min_range' => 0] // Default to 0 for the first page
    ]);

    // Build the updated query string
    $newQueryString = http_build_query($queryParams);

    // Redirect with the updated URI
    //var_dump("Redirecting to: {$filterSet["path"]}?{$newQueryString}");
    header("Location: {$filterSet["path"]}?{$newQueryString}");
    exit;
}

$view->pageData = $facilityDataSet->fetchAll($filterArray, $sortArray);
var_dump($filterArray, $sortArray);
$view->paginator = new Paginator($rowLimit, $view->pageData);

// Initialize paginator
$view->pageNumber = $view->paginator->getPageFromUri();
$view->pageData = $view->paginator->getPage($view->pageNumber);

// Send result count to view
$view->dbMessage = $view->paginator->countPageResults($view->pageNumber) == 0
    ? "No results"
    : $view->paginator->countPageResults($view->pageNumber) . " result(s)";

function setUri($filter, $category, $direction, $sort, $page)
{
    $uri = $_SERVER['REQUEST_URI'];
    $uriComp = parse_url($uri);
    $params = [];

    // Parse existing query parameters
    if (isset($uriComp['query'])) {
        parse_str($uriComp['query'], $params);
    } else {
        $params = array();
    }
    // Avoid unnecessary redirection if sort and filter is already correct
    if (
        (isset($params['sort']) && $params['sort'] === (string)$sort && isset($params['dir']) && $params['dir'] === $direction) &&
        (isset($params['category']) && $params['category'] === (string)$category && isset($params['term']) && $params['term'] === $filter)
    ) {
        exit;
    }

    // Update parameters
    if (!empty($category)) {
        $params['category'] = $category;
    }
    if (!empty($filter)) {
        $params['term'] = $filter;
    }
    if (!empty($sort)) {
        $params['sort'] = $sort;
    }
    if (!empty($direction)) {
        $params['dir'] = $direction;
    }
    if (!empty($filter)) {
        $params['page'] = $page;
    }

    // Rebuild the query string
    $newUri = http_build_query($params);
    var_dump($newUri);
    // Redirect to the updated URI
    // Use the current path or root
    return
        [
            'newUri' => $newUri,
            'path' => $uriComp['path'] ?? '/'
        ];
}