<?php
include('include/headscript.php');
header('Content-Type: application/json; charset=utf-8');

$idmescola = isset($_GET['id']) ? (int)$_GET['id'] : 0;
$categoria = $_GET['categoria'] ?? null;

if ($idmescola <= 0) {
    echo json_encode(['success' => false, 'message' => 'ID mescola non valido']);
    exit;
}

$categorie = require __DIR__ . '/config/mescole_file_categories.php';

try {
    $db  = DBHandlerSelect::getInstance();
    $pdo = $db->getConnection();

    $sql = "SELECT id, idmescola, categoria, titolo, filename, original_filename, mime_type, filesize, uploaded_at
            FROM mescole_files
            WHERE idmescola = ?";
    $params = [$idmescola];

    if (!empty($categoria)) {
        $sql .= " AND categoria = ?";
        $params[] = $categoria;
    }

    $sql .= " ORDER BY uploaded_at DESC";

    $stmt = $pdo->prepare($sql);
    $stmt->execute($params);

    $rows = [];
    while ($r = $stmt->fetch(PDO::FETCH_ASSOC)) {
        $r['categoria_label'] = $categorie[$r['categoria']] ?? $r['categoria'];
        $r['url'] = 'uploads/mescole/' . $r['idmescola'] . '/' . $r['filename'];
        $rows[] = $r;
    }

    echo json_encode(['success' => true, 'rows' => $rows, 'categorie' => $categorie]);
} catch (Throwable $e) {
    echo json_encode(['success' => false, 'message' => 'Errore server: ' . $e->getMessage()]);
}