<?php
require_once __DIR__ . '/../includes/db.php';
require_once __DIR__ . '/../includes/auth.php';

auth_check();
header('Content-Type: application/json');

$rows = db()->query(
    'SELECT sf.id, sf.title, sf.sender, sf.date_processing, a.username,
            GROUP_CONCAT(f.id, ":", f.file_name, ":", f.path ORDER BY f.id SEPARATOR "|") as files
     FROM source_file sf
     LEFT JOIN accounts a ON sf.account_id = a.id
     LEFT JOIN files f ON sf.id = f.source_file_id
     GROUP BY sf.id ORDER BY sf.date_processing DESC'
)->fetchAll();

$toDelete = []; // source_file ids à supprimer

foreach ($rows as $key => &$r) {
    $r['files_list'] = [];

    if ($r['files']) {
        $allGone = true;
        foreach (explode('|', $r['files']) as $f) {
            [$fid, $fname, $fpath] = array_pad(explode(':', $f, 3), 3, '');
            if (file_exists($fpath)) {
                $allGone = false;
                $r['files_list'][] = ['id' => (int)$fid, 'name' => $fname, 'exists' => true];
            } else {
                // Fichier supprimé du SMB — retire l'entrée files en BDD
                db()->prepare('DELETE FROM files WHERE id = ?')->execute([(int)$fid]);
            }
        }
        // Si tous les fichiers ont disparu, supprime la ligne source
        if ($allGone) {
            $toDelete[] = $r['id'];
            unset($rows[$key]);
            continue;
        }
    } else {
        // Pas de fichiers associés — supprime la ligne source aussi
        $toDelete[] = $r['id'];
        unset($rows[$key]);
        continue;
    }

    unset($r['files']);
}

// Supprime les source_file orphelins
foreach ($toDelete as $id) {
    db()->prepare('DELETE FROM source_file WHERE id = ?')->execute([$id]);
}

echo json_encode(array_values($rows));