<?php
require_once __DIR__ . '/../../bootstrap.php';
require_once __DIR__ . '/../../src/AdminAuth.php';
require_once __DIR__ . '/../../src/Form/FormBootstrap.php';
AdminAuth::requireLogin();

if (empty($_SESSION['csrf_token'])) {
    $_SESSION['csrf_token'] = bin2hex(random_bytes(32));
}

$thesisId = isset($_GET['id']) ? intval($_GET['id']) : 0;
if ($thesisId <= 0) {
    die('ID invalide');
}

require_once __DIR__ . '/../../src/Controllers/ThesisEditController.php';

$formData      = [];
$siteSettings  = Database::getInstance()->getAllSettings();
$helpBlocks    = Database::getInstance()->getAllFormHelpBlocks();

try {
    $ctrl = ThesisEditController::create();
    $view = $ctrl->load($thesisId);
    extract($view);
} catch (Exception $e) {
    error_log('Error loading edit page: ' . $e->getMessage());
    die('Erreur lors du chargement: ' . $e->getMessage());
}

// Merge flash repopulation data (from redirects after validation errors)
// with current thesis data so old() can fall back to DB values.
$formData = array_merge($formData, [
    'titre'            => $thesis['title'],
    'subtitle'         => $thesis['subtitle'] ?? '',
    'auteurice'        => $thesis['authors'] ?? '',
    'mail'             => $contactInterne ?? '',
    'contact_visible'  => $currentContactVisible ?? '',
    'synopsis'         => $thesis['synopsis'] ?? '',
    'tag'              => $thesis['keywords'] ?? '',
    'année'            => $thesis['year'],
    'orientation'      => $thesis['orientation'],
    'ap'               => $thesis['ap_program'],
    'finality'         => $thesis['finality_type'],
    'lien'             => $thesis['baiu_link'] ?? '',
    'contact_public'   => $contactPublic ?? false,
    'contact_interne'  => $contactInterne ?? '',
]);

// Build jury arrays
$juryPromoteurs    = [];
$juryPromoteursUlb = [];
$lecteursInternes  = [];
$lecteursExternes  = [];
$juryPromoteur     = null;
$juryPromoteurUlb  = null;

foreach ($jury as $jm) {
    if ($jm['role'] === 'president') continue;
    if ($jm['role'] === 'promoteur') {
        if (($jm['is_ulb'] ?? 0) == 1) {
            $juryPromoteursUlb[] = $jm;
        } else {
            $juryPromoteurs[] = $jm;
        }
    } elseif ($jm['role'] === 'lecteur') {
        if (($jm['is_external'] ?? 0) == 1) {
            $lecteursExternes[] = $jm;
        } else {
            $lecteursInternes[] = $jm;
        }
    }
}
if (!empty($juryPromoteurs) && $juryPromoteur === null) $juryPromoteur = $juryPromoteurs[0]['name'];
if (!empty($juryPromoteursUlb) && $juryPromoteurUlb === null) $juryPromoteurUlb = $juryPromoteursUlb[0]['name'];

// Build existing website URL / label from current files
$existingWebsiteUrl   = '';
$existingWebsiteLabel = '';
foreach ($currentFiles as $f) {
    if ($f['file_type'] === 'website') {
        $existingWebsiteUrl   = $f['file_path'] ?? '';
        $existingWebsiteLabel = $f['display_label'] ?? '';
        break;
    }
}

// Languages — either from flash repopulation or current thesis data
$formData['languages'] = $formData['languages'] ?? $currentLanguages ?? [];

// Compute "other" languages (not in the predefined checkbox list)
$predefinedLangIds = array_column($languages, 'id');
$otherLangIds = array_diff($currentLanguages ?? [], $predefinedLangIds);
$selectedOtherLanguages = [];
if (!empty($otherLangIds)) {
    $allLangs = Database::getInstance()->getAllLanguages();
    $allLangMap = [];
    foreach ($allLangs as $al) {
        $allLangMap[(int)$al['id']] = $al['name'];
    }
    foreach ($otherLangIds as $lid) {
        $lid = (int)$lid;
        if (isset($allLangMap[$lid])) {
            $selectedOtherLanguages[] = $allLangMap[$lid];
        }
    }
    sort($selectedOtherLanguages, SORT_NATURAL | SORT_FLAG_CASE);
}

// Tags — either from flash repopulation or current thesis data
$keywordsStr = $thesis['keywords'] ?? '';
$currentTags = $keywordsStr !== '' ? array_map('trim', explode(',', $keywordsStr)) : [];
if (!empty($formData['tag']) && is_array($formData['tag'])) {
    $currentTags = $formData['tag'];
}

// Formats — either from flash repopulation or current thesis data
$checkedFormats = $formData['formats'] ?? $currentFormats ?? [];
$formData['formats'] = $checkedFormats;

// Shared form variables from the bootstrap helper
extract(FormBootstrap::adminFormVariables(
    mode:         'edit',
    formAction:   '/admin/actions/edit.php',
    hiddenFields:
        '<input type="hidden" name="csrf_token" value="' . htmlspecialchars($_SESSION['csrf_token']) . '">'
        . '<input type="hidden" name="thesis_id" value="' . $thesisId . '">',
    formData:     $formData,
    siteSettings: $siteSettings,
    helpBlocks:   $helpBlocks,
    options: [
        'filesMode'             => 'edit',
        'existingWebsiteUrl'    => $existingWebsiteUrl,
        'existingWebsiteLabel'  => $existingWebsiteLabel,
        'checkedFormats'        => $checkedFormats,
        'juryPromoteurs'        => $juryPromoteurs,
        'juryPromoteursUlb'     => $juryPromoteursUlb,
        'lecteursInternes'      => $lecteursInternes,
        'lecteursExternes'      => $lecteursExternes,
        'juryPromoteur'         => $juryPromoteur,
        'juryPromoteurUlb'      => $juryPromoteurUlb,
        'currentRaw'            => $currentRaw ?? [],
        'currentCover'          => $currentCover ?? null,
        'currentFiles'          => $currentFiles ?? [],
        'currentContextNote'    => $currentContextNote ?? null,
        'currentContactVisible' => $currentContactVisible ?? null,
        'contactInterne'        => $contactInterne ?? null,
        'contactPublic'         => $contactPublic ?? false,
        'showCoverPreview'      => true,
        'showExistingFiles'     => true,
        'defaultAccessTypeId'   => $currentAccessTypeId ?? 2,
    ],
));

// Inject thesis-derived values into formData for the template
$formData['access_type_id'] = $currentAccessTypeId;
$formData['license_id']     = $currentLicenseId;
$formData['license_custom'] = $currentRaw['license_custom'] ?? '';
$formData['cc2r']           = $currentRaw['cc2r'] ?? false;

// Asset arrays and page chrome
$isAdmin        = true;
$bodyClass      = 'admin-body';
extract(FormBootstrap::adminAssetArrays());
require_once APP_ROOT . '/templates/head.php';
include APP_ROOT . '/templates/header.php';
include APP_ROOT . '/templates/admin/edit.php';
require_once APP_ROOT . '/templates/admin/footer.php';