<?php
header("Content-Type: application/json");
error_reporting(E_ALL);
ini_set('display_errors', 1);

$action = $_GET['action'] ?? null;
$page = (int)($_GET['page'] ?? 1);
$identifier = $_GET['identifier'] ?? null;
$lang = $_GET['lang'] ?? 'ar'; // Default to 'ar' if not provided

if ($action === "homepage") {
    response(400, "Homepage action not allowed");
    exit;
}

require "config.php";

// Set default number of rows per page
$rowsPerPage = 30;
$offset = ($page - 1) * $rowsPerPage;

// Set default fields to select from the news table
$defaultFields = [
    'news.ID',
    'news.pdate',
    'news.title',
    'news.mStatus',
    'news.mCat',
    'news.picture',
    'news.userInserted',
    'news.udate',
    'news.mobilevideo',
    'category_translations.translated_name AS category'
];

// Use a function to handle cache and database queries
function handleRequest($conn, $action, $identifier, $offset, $rowsPerPage, $fields, $lang)
{
    $cacheFile = "s_json/{$action}_{$offset}_{$identifier}_{$lang}.json";
    $cacheTime = 20; // Cache time in seconds

    if ($action === "article" && $identifier < 992000 && file_exists($cacheFile)) {
        echo file_get_contents($cacheFile);
        exit;
    }

    if (file_exists($cacheFile) && (time() - filemtime($cacheFile)) < $cacheTime) {
        echo file_get_contents($cacheFile);
        exit;
    }

    ob_start();

    switch ($action) {
        case "notifications":
            handleNotifications($conn, $identifier);
            break;
        case "appcategory":
            handleAppCategory($conn, $identifier, $offset, $rowsPerPage, $fields, $lang);
            break;
        case "appvideo":
            handleAppVideo($conn, $offset, $rowsPerPage, $fields, $lang);
            break;
        case "apparticle":
            handleAppArticle($conn, $identifier, $fields, $lang);
            break;
        case "appCatBig":
            handleAppCatBig($conn, $identifier, $fields, $lang);
            break;
        case "appcitylist":
            handleAppCityList($conn);
            break;
        case "appNavigation":
            handleAppNavigation($conn);
            break;
        case "apphome":
            handleAppHome($conn, $identifier, $fields, $lang);
            break;
        default:
            response(400, "Action Not Found");
    }

    // Save cache if necessary
    $fp = fopen($cacheFile, 'w');
    fwrite($fp, ob_get_contents());
    fclose($fp);
    ob_end_flush();
}

// Function to handle each action
function handleNotifications($conn, $identifier)
{
    if (!$identifier) {
        response(400, "Identifier Not Found");
        return;
    }

    $query = "SELECT * FROM `notifications` ORDER BY send_date DESC LIMIT 10";
    $result = $conn->query($query);

    if (!$result) {
        echo "MySQL Error: " . $conn->error . "\n";
    }

    $data = [];
    while ($row = $result->fetch_assoc()) {
        $data[] = $row;
    }

    appresponse($data);
}

function handleAppCategory($conn, $identifier, $offset, $rowsPerPage, $fields, $lang)
{
    if (!$identifier) {
        response(400, "Identifier Not Found");
        return;
    }

    // Fetch the category based on the identifier and language
    $query = "SELECT cat.ID, 
                     COALESCE(category_translations.translated_name, cat.Name) AS Name 
              FROM ncategories AS cat
              LEFT JOIN category_translations ON category_translations.category_id = cat.ID AND category_translations.language_code = ?
              WHERE cat.ID = ?";
    
    $stmt = $conn->prepare($query);

    if (!$stmt) {
        echo "MySQL Prepare Error: " . $conn->error . "\n";
        return;
    }

    $stmt->bind_param("si", $lang, $identifier);
    $stmt->execute();

    if ($stmt->errno) {
        echo "MySQL Execute Error: " . $stmt->error . "\n";
    }

    $result = $stmt->get_result();

    if (!$result) {
        echo "MySQL Error: " . $conn->error . "\n";
    }

    if ($row = $result->fetch_assoc()) {
        $data['id'] = $row['ID'];
        $data['title'] = $row['Name'];
        $data['headerDesc'] = $row['sData'];

        // Fetch articles based on the category ID (mCat) and language
        $data['articles'] = fetchNews($conn, $identifier, $offset, $rowsPerPage, $fields, $lang);
        $categoriesQuery = "
        SELECT c.ID, COALESCE(ct.translated_name, c.Name) as Name, c.link 
        FROM ncategories c
        LEFT JOIN category_translations ct ON c.ID = ct.category_id AND ct.language_code = ?
        WHERE c.cmsfilter = 1
        ORDER BY corder ASC
    ";
    $categoriesStmt = $conn->prepare($categoriesQuery);

    if (!$categoriesStmt) {
        echo "MySQL Prepare Error for categories: " . $conn->error . "\n";
        return;
    }

    $categoriesStmt->bind_param("s", $lang);
    $categoriesStmt->execute();

    if ($categoriesStmt->errno) {
        echo "MySQL Execute Error for categories: " . $categoriesStmt->error . "\n";
        return;
    }

    $categoriesResult = $categoriesStmt->get_result();
    $categories = [];
    while ($row = $categoriesResult->fetch_assoc()) {
        if ($row['link'] == 1) {
            // Fetch the single article ID for this category in the specified language
            $articleQuery = "
                SELECT ID 
                FROM news 
                WHERE mCat = ? AND lang = ? 
                LIMIT 1
            ";
            $articleStmt = $conn->prepare($articleQuery);

            if (!$articleStmt) {
                echo "MySQL Prepare Error for article: " . $conn->error . "\n";
                return;
            }

            $articleStmt->bind_param("is", $row['ID'], $lang);
            $articleStmt->execute();

            if ($articleStmt->errno) {
                echo "MySQL Execute Error for article: " . $articleStmt->error . "\n";
                return;
            }

            $articleResult = $articleStmt->get_result();
            if ($articleRow = $articleResult->fetch_assoc()) {
                // Add the article ID to the category row
                $row['articleid'] = $articleRow['ID'];
            }

            $articleStmt->close();
        }

        $categories[] = $row;
    }

	$data['categories']= $categories;
        appresponse($data);
    } else {
        response(400, "Category Not Found");
    }
}

function handleAppVideo($conn, $offset, $rowsPerPage, $fields, $lang)
{
    $query = "SELECT " . implode(", ", $fields) . " FROM news 
              LEFT JOIN ncategories ON ncategories.ID = news.mCat
              LEFT JOIN category_translations ON category_translations.category_id = news.mCat AND category_translations.language_code = ?
              WHERE news.mStatus=1 AND news.mobilevideo != '' AND news.lang = ?
              ORDER BY news.ID DESC 
              LIMIT ?, ?";
    $stmt = $conn->prepare($query);

    if (!$stmt) {
        echo "MySQL Prepare Error: " . $conn->error . "\n";
        return;
    }

    $stmt->bind_param("ssii", $lang, $lang, $offset, $rowsPerPage);
    $stmt->execute();

    if ($stmt->errno) {
        echo "MySQL Execute Error: " . $stmt->error . "\n";
    }

    $result = $stmt->get_result();

    if (!$result) {
        echo "MySQL Error: " . $conn->error . "\n";
    }

    $data['videos'] = [];
    while ($row = $result->fetch_assoc()) {
        $row['picture'] =  $row['picPath'] . $row['picture'];
        if ($row['mobilevideo']) {
            $row['mobilevideo'] = "https://cdn.alarab.com/h264/" . $row['mobilevideo'] . "_,48,24,0p.mp4.urlset/playlist.m3u8";
        }
        $data['videos'][] = $row;
    }

    appresponse($data);
}
function handleAppArticle($conn, $identifier, $fields, $lang)
{
    // Fetch the main article first to get its mCat
    $query = "SELECT news.ID, news.pdate, news.title, news.fData,news.mStatus, news.mCat, news.picture, news.userInserted, news.udate, news.mobilevideo, category_translations.translated_name AS category 
              FROM news 
              LEFT JOIN ncategories ON ncategories.ID = news.mCat 
              LEFT JOIN category_translations ON category_translations.category_id = news.mCat AND category_translations.language_code = ? 
              WHERE news.ID = ?";
    
    $stmt = $conn->prepare($query);

    if (!$stmt) {
        echo "MySQL Prepare Error: " . $conn->error . "\n";
        return;
    }

    // Corrected to bind the two parameters (lang and identifier)
    $stmt->bind_param("si", $lang, $identifier);
    $stmt->execute();

    if ($stmt->errno) {
        echo "MySQL Execute Error: " . $stmt->error . "\n";
        return;
    }

    $result = $stmt->get_result();

    if (!$result) {
        echo "MySQL Error: " . $conn->error . "\n";
        return;
    }

    if ($row = $result->fetch_assoc()) {
        $mCat = $row['mCat'];  // Capture the mCat of the selected article
        $row['picture'] = "http://comark-light.localhost/". $row['picture'];
        $data['article'] = $row;

        // Fetch related images
        $data['article']['gallery'] = fetchGallery($conn, $identifier);

        // Fetch related news using the mCat of the current article
        $data['article']['related'] = fetchRelatedNews($conn, $mCat, $identifier, $lang);

        $categoriesQuery = "
        SELECT c.ID, COALESCE(ct.translated_name, c.Name) as Name, c.link 
        FROM ncategories c
        LEFT JOIN category_translations ct ON c.ID = ct.category_id AND ct.language_code = ?
        WHERE c.cmsfilter = 1
        ORDER BY corder ASC
    ";
    $categoriesStmt = $conn->prepare($categoriesQuery);

    if (!$categoriesStmt) {
        echo "MySQL Prepare Error for categories: " . $conn->error . "\n";
        return;
    }

    $categoriesStmt->bind_param("s", $lang);
    $categoriesStmt->execute();

    if ($categoriesStmt->errno) {
        echo "MySQL Execute Error for categories: " . $categoriesStmt->error . "\n";
        return;
    }

    $categoriesResult = $categoriesStmt->get_result();
    $categories = [];
    while ($row = $categoriesResult->fetch_assoc()) {
        if ($row['link'] == 1) {
            // Fetch the single article ID for this category in the specified language
            $articleQuery = "
                SELECT ID 
                FROM news 
                WHERE mCat = ? AND lang = ? 
                LIMIT 1
            ";
            $articleStmt = $conn->prepare($articleQuery);

            if (!$articleStmt) {
                echo "MySQL Prepare Error for article: " . $conn->error . "\n";
                return;
            }

            $articleStmt->bind_param("is", $row['ID'], $lang);
            $articleStmt->execute();

            if ($articleStmt->errno) {
                echo "MySQL Execute Error for article: " . $articleStmt->error . "\n";
                return;
            }

            $articleResult = $articleStmt->get_result();
            if ($articleRow = $articleResult->fetch_assoc()) {
                // Add the article ID to the category row
                $row['articleid'] = $articleRow['ID'];
            }

            $articleStmt->close();
        }

        $categories[] = $row;
    }
	$data['categories']= $categories;
	appresponse($data);

    } else {
        response(400, "Article Not Found");
    }
}

// Adjust fetchRelatedNews to use mCat instead of smallcat
function fetchRelatedNews($conn, $mCat, $newsId, $lang)
{
    $query = "SELECT news.ID, news.title, news.picture 
              FROM news 
              LEFT JOIN ncategories ON ncategories.ID = news.mCat
              LEFT JOIN category_translations ON category_translations.category_id = news.mCat AND category_translations.language_code = ?
              WHERE  news.ID < ? AND news.mCat = ? AND news.lang = ?
              ORDER BY ID DESC LIMIT 5";
    $stmt = $conn->prepare($query);

    if (!$stmt) {
        echo "MySQL Prepare Error: " . $conn->error . "\n";
        return;
    }
    $stmt->bind_param("siii", $lang, $newsId, $mCat, $lang);
    $stmt->execute();

    if ($stmt->errno) {
        echo "MySQL Execute Error: " . $stmt->error . "\n";
    }

    $result = $stmt->get_result();

    if (!$result) {
        echo "MySQL Error: " . $conn->error . "\n";
    }
    $related = [];
    while ($row = $result->fetch_assoc()) {
        $row['picture'] = "http://comark-light.localhost/". $row['picture'] . "?aspect_ratio=1:1&width=500";
        $related[] = $row;
    }

    return $related;
}

function handleAppCatBig($conn, $identifier, $fields, $lang)
{
    if (!$identifier) {
        response(400, "Identifier Not Found");
        return;
    }

    $query = "SELECT " . implode(", ", $fields) . " FROM news 
              LEFT JOIN ncategories ON ncategories.ID = news.mCat
              LEFT JOIN category_translations ON category_translations.category_id = news.mCat AND category_translations.language_code = ?
              WHERE news.mStatus=1 AND news.mCat = ? AND news.lang = ?
              ORDER BY news.ID DESC 
              LIMIT ?, ?";
    $stmt = $conn->prepare($query);

    if (!$stmt) {
        echo "MySQL Prepare Error: " . $conn->error . "\n";
        return;
    }

    $stmt->bind_param("sissi", $lang, $identifier, $lang, $offset, $rowsPerPage);
    $stmt->execute();

    if ($stmt->errno) {
        echo "MySQL Execute Error: " . $stmt->error . "\n";
    }

    $result = $stmt->get_result();

    if (!$result) {
        echo "MySQL Error: " . $conn->error . "\n";
    }

    $data['mainnews'] = [];
    while ($row = $result->fetch_assoc()) {
        $row['picture'] =  $row['picPath'] . $row['picture']. "?aspect_ratio=1:1&width=500";
        $data['mainnews'][] = $row;
    }

    appresponse($data);
}

function handleAppCityList($conn)
{
    $query = "SELECT id, erea FROM `erea`";
    $result = $conn->query($query);

    if (!$result) {
        echo "MySQL Error: " . $conn->error . "\n";
    }

    $data['citylist'] = [];
    while ($row = $result->fetch_assoc()) {
        $data['citylist'][] = $row;
    }

    appresponse($data);
}

function handleAppNavigation($conn)
{
    $query = "SELECT * FROM navigation ORDER BY display_order ASC";
    $result = $conn->query($query);

    if (!$result) {
        echo "MySQL Error: " . $conn->error . "\n";
    }

    $data['Menu'] = [];
    while ($row = $result->fetch_assoc()) {
        $data['Menu'][] = $row;
    }

    appresponse($data);
}

function handleAppHome($conn, $identifier, $fields, $lang)
{
    // Fetch categories for the specific language
    $categoriesQuery = "
        SELECT c.ID, COALESCE(ct.translated_name, c.Name) as Name, c.link 
        FROM ncategories c
        LEFT JOIN category_translations ct ON c.ID = ct.category_id AND ct.language_code = ?
        WHERE c.cmsfilter = 1
        ORDER BY corder ASC
    ";
    $categoriesStmt = $conn->prepare($categoriesQuery);

    if (!$categoriesStmt) {
        echo "MySQL Prepare Error for categories: " . $conn->error . "\n";
        return;
    }

    $categoriesStmt->bind_param("s", $lang);
    $categoriesStmt->execute();

    if ($categoriesStmt->errno) {
        echo "MySQL Execute Error for categories: " . $categoriesStmt->error . "\n";
        return;
    }

    $categoriesResult = $categoriesStmt->get_result();
    $categories = [];
    while ($row = $categoriesResult->fetch_assoc()) {
        if ($row['link'] == 1) {
            // Fetch the single article ID for this category in the specified language
            $articleQuery = "
                SELECT ID, fData
                FROM news 
                WHERE mCat = ? AND lang = ? 
                LIMIT 1
            ";
            $articleStmt = $conn->prepare($articleQuery);

            if (!$articleStmt) {
                echo "MySQL Prepare Error for article: " . $conn->error . "\n";
                return;
            }

            $articleStmt->bind_param("is", $row['ID'], $lang);
            $articleStmt->execute();

            if ($articleStmt->errno) {
                echo "MySQL Execute Error for article: " . $articleStmt->error . "\n";
                return;
            }

            $articleResult = $articleStmt->get_result();
            if ($articleRow = $articleResult->fetch_assoc()) {
                // Add the article ID to the category row
                $row['articleid'] = $articleRow['ID'];
                if($row['ID'] == 46 ){
                $aboutustext= $articleRow['fData'];
                 $data['aboutus'] = $aboutustext;
                }
               
            }

            $articleStmt->close();
        }

        $categories[] = $row;
    }

    $categoriesStmt->close();

    // Fetch the last 3 articles for the specific language
    $articlesQuery = "
        SELECT ID, title, pdate, picture 
        FROM news 
        WHERE lang = ? AND mCat=45
        ORDER BY ID DESC 
    ";
    $articlesStmt = $conn->prepare($articlesQuery);

    if (!$articlesStmt) {
        echo "MySQL Prepare Error for articles: " . $conn->error . "\n";
        return;
    }

    $articlesStmt->bind_param("s", $lang);
    $articlesStmt->execute();

    if ($articlesStmt->errno) {
        echo "MySQL Execute Error for articles: " . $articlesStmt->error . "\n";
        return;
    }

    $articlesResult = $articlesStmt->get_result();
    $articles = [];
    while ($row = $articlesResult->fetch_assoc()) {
        $row['picture'] = "https://www.bayt.org.il/". $row['picture']. "?class=thumb";
        $articles[] = $row;
    }

    $articlesStmt->close();

    // Prepare the response
    $response = [
        'categories' => $categories,
        'articles' => $articles,
        'aboutus' => $aboutustext
    ];

    // Send the response
    appresponse($response);
}


// Fetch news from the database
function fetchNews($conn, $mCat, $offset, $rowsPerPage, $fields, $lang)
{
    $query = "SELECT " . implode(", ", $fields) . " 
              FROM news 
              LEFT JOIN ncategories ON ncategories.ID = news.mCat
              LEFT JOIN category_translations ON category_translations.category_id = ncategories.ID AND category_translations.language_code = ?
              WHERE news.mCat = ? AND news.lang = ?
              ORDER BY news.ID ASC
              LIMIT ?, ?";

    $stmt = $conn->prepare($query);
    
    if (!$stmt) {
        echo "MySQL Prepare Error: " . $conn->error . "\n";
        return [];
    }

    // Bind all five parameters
    $stmt->bind_param("sisii", $lang, $mCat, $lang, $offset, $rowsPerPage);
    $stmt->execute();

    if ($stmt->errno) {
        echo "MySQL Execute Error: " . $stmt->error . "\n";
        return [];
    }

    $result = $stmt->get_result();

    if (!$result) {
        echo "MySQL Error: " . $conn->error . "\n";
        return [];
    }

    $articles = [];
    while ($row = $result->fetch_assoc()) {
        $row['picture'] =  $row['picPath'] . $row['picture'];
        $articles[] = $row;
    }

    return $articles;
}


// Fetch categories from the database
function fetchCategories($conn, $lang)
{
    $query = "SELECT ncategories.ID, category_translations.translated_name AS Name
              FROM ncategories
              LEFT JOIN category_translations ON category_translations.category_id = ncategories.ID AND category_translations.language_code = ?
              WHERE ncategories.cmsfilter=1 
              ORDER BY ncategories.ID ASC";
    $stmt = $conn->prepare($query);

    if (!$stmt) {
        echo "MySQL Prepare Error: " . $conn->error . "\n";
        return;
    }

    $stmt->bind_param("s", $lang);
    $stmt->execute();

    if ($stmt->errno) {
        echo "MySQL Execute Error: " . $stmt->error . "\n";
    }

    $result = $stmt->get_result();

    if (!$result) {
        echo "MySQL Error: " . $conn->error . "\n";
    }

    $categories = [];
    while ($row = $result->fetch_assoc()) {
        $categories[] = $row;
    }

    return $categories;
}

// Fetch gallery images from the database
function fetchGallery($conn, $newsId)
{
    $query = "SELECT * FROM images WHERE newsid = ?";
    $stmt = $conn->prepare($query);

    if (!$stmt) {
        echo "MySQL Prepare Error: " . $conn->error . "\n";
        return;
    }

    $stmt->bind_param("i", $newsId);
    $stmt->execute();

    if ($stmt->errno) {
        echo "MySQL Execute Error: " . $stmt->error . "\n";
    }

    $result = $stmt->get_result();

    if (!$result) {
        echo "MySQL Error: " . $conn->error . "\n";
    }

    $gallery = [];
    while ($pic = $result->fetch_assoc()) { 
        $gallery[] = [
            "src" => "https://images.alarab.com/" . $pic['file_name'],
            "width" => $pic['width'],
            "height" => $pic['height'],
            "title" => $pic['title']
        ];
    }
    
    return $gallery;
}


// JSON response functions
function response($status, $message, $data = null)
{
    echo json_encode([
        'status' => $status,
        'message' => $message,
        'data' => $data
    ], JSON_UNESCAPED_UNICODE);
    exit;
}

function appresponse($data)
{
    response(200, "Success", $data);
}

// Handle the request based on the action
if (!empty($action)) {
    handleRequest($conn, $action, $identifier, $offset, $rowsPerPage, $defaultFields, $lang);
} else {
    response(400, "Action Not Found");
}

mysqli_close($conn);