<?php
/**
 * Shared TFE form partial — single source of truth for add, edit, and partage forms.
 *
 * Required variables (set by the including page):
 *   string  $mode                    — 'add' | 'edit' | 'partage'
 *   string  $formAction              — form action URL
 *   string  $hiddenFields            — raw HTML for hidden inputs (csrf, thesis_id, etc.)
 *
 * old/value callables:
 *   callable $oldFn                  — fn(string $key, string $default=''): string (with escaping)
 *   callable $withAutofocusFn        — fn(string $field, array $attrs=[]): array
 *
 * Data shared across fieldsets:
 *   array $formData                  — raw form repopulation data (not pre-escaped)
 *   array $orientations, $apPrograms, $finalityTypes, $languages, $formatTypes, $licenseTypes
 *
 * Jury data:
 *   ?string $juryPromoteur, $juryPromoteurUlb
 *   array   $juryPromoteurs, $juryPromoteursUlb
 *   array   $lecteursInternes, $lecteursExternes
 *   bool    $showPromoteurUlb, $promoteurUlbConditional
 *
 * Licence / access:
 *   bool   $libreEnabled, $interneEnabled, $interditEnabled
 *   string $generalitiesHtml
 *   int    $defaultAccessTypeId
 *
 * Optional flags (all default to false):
 *   bool   $showIntroHelp       — render partage intro help block
 *   bool   $showFlash           — render flash banners (error/warning/success)
 *   bool   $showContact         — Contact checkbox fieldset
 *   bool   $showCoverPreview    — cover image preview + remove checkbox
 *   bool   $showExistingFiles   — existing thesis files list (deletable)
 *   bool   $showBackoffice      — Backoffice fieldset (context_note, jury_points, remarks, baiu_link, exemplaires, contact_interne, is_published)
 *   bool   $showEmailConfirmation — E-mail de confirmation fieldset

 *   string $helpFn              — fn(string $key): string  (for help blocks)
 *   string $helpContent         — current help block content (for help-block renders)
 *   array  $helpBlocks          — all help blocks (for intro)
 *
 * Files mode variables:
 *   string $filesMode           — 'add' | 'edit' (determines which file inputs to show)
 *   ?string $currentCover       — existing cover file info for edit mode
 *   array   $currentFiles       — existing thesis files for edit mode
 *   ?string $currentContextNote — existing context note for edit mode
 *   array   $currentRaw         — raw thesis row for edit mode
 *   ?string $contactPublic  — contact visibility flag for edit mode
 *   ?string $contactInterne — contact email for edit mode
 *
 * Website:
 *   string $existingWebsiteUrl
 *   string $existingWebsiteLabel
 *   array  $checkedFormatsForSiteWeb
 */

// ── Defaults ──────────────────────────────────────────────────────────────────
$mode                    = $mode            ?? 'add';
// In admin add/edit, no field is required (admins can save partial records)
$adminMode               = ($mode === 'add' || $mode === 'edit');
$formAction              = $formAction      ?? '';
$hiddenFields            = $hiddenFields    ?? '';
$formData = $formData ?? [];
$synopsisExtra = $synopsisExtra ?? "";

$juryPromoteur = $juryPromoteur ?? null;
$juryPromoteurs = $juryPromoteurs ?? [];
$juryPromoteurUlb = $juryPromoteurUlb ?? null;
$juryPromoteursUlb = $juryPromoteursUlb ?? [];
$lecteursInternes = $lecteursInternes ?? [];
$lecteursExternes = $lecteursExternes ?? [];
$juryPresident = $juryPresident ?? null;
$showPromoteurUlb = $showPromoteurUlb ?? true;
$promoteurUlbConditional = $promoteurUlbConditional ?? false;

$libreEnabled = $libreEnabled ?? true;
$interneEnabled = $interneEnabled ?? true;
$interditEnabled = $interditEnabled ?? true;
$generalitiesHtml = $generalitiesHtml ?? "";
$defaultAccessTypeId = $defaultAccessTypeId ?? 2;

// Optional flags
$showIntroHelp = $showIntroHelp ?? false;
$showFlash = $showFlash ?? false;
$showContact = $showContact ?? false;
$showCoverPreview = $showCoverPreview ?? false;
$showExistingFiles = $showExistingFiles ?? false;
$showBannerPreview = false; // Banners merged into covers — field removed
$showBackoffice = $showBackoffice ?? false;
$showEmailConfirmation = $showEmailConfirmation ?? false;

$oldFn                   = $oldFn               ?? (function_exists('old') ? 'old' : fn($k, $d = '') => $d);
$withAutofocusFn = $withAutofocusFn ?? fn($field, $attrs = []) => $attrs;
$filesMode               = $filesMode           ?? 'add';
$existingWebsiteUrl      = $existingWebsiteUrl  ?? '';
$existingWebsiteLabel    = $existingWebsiteLabel ?? '';
$checkedFormatsForSiteWeb = $checkedFormatsForSiteWeb ?? [];
?>

<?php if ($showIntroHelp && isset($helpFn)): ?>
    <?php
    $helpContent = $helpFn("partage_intro");
    $helpKey     = 'partage_intro';
    include APP_ROOT . "/templates/partials/form/form-help-block.php";
    ?>
<?php endif; ?>

<?php if ($showFlash): ?>
    <?php
    $flashError = $_SESSION["_flash_error"] ?? null;
    $flashWarning = $_SESSION["_flash_warning"] ?? null;
    $flashSuccess = $_SESSION["_flash_success"] ?? null;
    $flashContact = $_SESSION["_flash_contact"] ?? false;
    unset(
        $_SESSION["_flash_error"],
        $_SESSION["_flash_warning"],
        $_SESSION["_flash_success"],
        $_SESSION["_flash_contact"],
    );
    ?>
    <?php if ($flashError): ?>
    <div class="flash-error" role="alert"><?= htmlspecialchars(
        $flashError,
    ) ?></div>
    <?php endif; ?>
    <?php if ($flashWarning): ?>
    <div class="flash-warning" id="flash-warning" role="alert" tabindex="-1"><?= htmlspecialchars(
        $flashWarning,
    ) ?></div>
    <script>document.addEventListener('DOMContentLoaded',function(){var el=document.getElementById('flash-warning');if(el){el.scrollIntoView({behavior:'smooth',block:'center'});el.focus();}});</script>
    <?php endif; ?>
    <?php if ($flashContact && $mode === 'partage'): ?>
    <?php require_once APP_ROOT . '/src/EmailObfuscator.php'; ?>
    <div class="flash-info" role="alert">
        Si le problème persiste, envoyez un e-mail à
        <a href="<?= EmailObfuscator::mailto('xamxam@erg.be') ?>"><?= EmailObfuscator::email('xamxam@erg.be') ?></a>.
    </div>
    <?php endif; ?>
    <?php if ($flashSuccess): ?>
    <div class="flash-success" role="alert"><?= htmlspecialchars(
        $flashSuccess,
    ) ?></div>
    <?php endif; ?>
<?php endif; ?>

    <form action="<?= $formAction ?>" method="post" enctype="multipart/form-data" class="admin-form" data-beforeunload-guard data-upload-progress>
        <input type="hidden" name="progress_token" value="<?= bin2hex(random_bytes(8)) ?>">
        <input type="hidden" name="filepond_mode" value="1">
        <?= $hiddenFields ?>

        <?php if (!$adminMode): ?>
        <p class="required-note"><span class="asterisk">*</span> Champs obligatoires</p>
        <?php endif; ?>

        <!-- ═══════════════════ Informations du TFE ═══════════════════ -->
        <?php
        if ($mode === "partage" && isset($helpFn)) {
            $helpContent = $helpFn("fieldset_tfe_info");
            $helpKey     = 'fieldset_tfe_info';
            include APP_ROOT . "/templates/partials/form/form-help-block.php";
        }
        include APP_ROOT . "/templates/partials/form/fieldset-tfe-info.php";
        ?>

<?php if ($showContact): ?>
        <!-- ═══════════════════ Contact ═══════════════════ -->
        <fieldset>
            <legend>Contact</legend>
            <div class="admin-form-group">
                <label class="admin-checkbox-label">
                    <input type="checkbox" name="contact_public" value="1"
                           <?= !empty($formData["contact_public"]) ||
                           ($contactPublic ?? false)
                               ? "checked"
                               : "" ?>>
                    Rendre le contact visible publiquement sur la fiche du TFE
                </label>
                <small>L'adresse est toujours conservée en interne comme contact de référence.</small>
            </div>
        </fieldset>
<?php endif; ?>

        <!-- ═══════════════════ Langue(s) ═══════════════════ -->
        <?php
        if ($mode === "partage" && isset($helpFn)) {
            $helpContent = $helpFn("fieldset_languages");
            $helpKey     = 'fieldset_languages';
            include APP_ROOT . "/templates/partials/form/form-help-block.php";
        }
        ?>
        <fieldset id="languages-fieldset">
            <legend>Langue(s)</legend>
            <?php
            $name = "languages";
            $label = "Langue(s) du TFE :";
            $options = $languages;
            $checked = $formData["languages"] ?? [];
            $_hasLangAutre = !empty($formData['language_autre']) && is_array($formData['language_autre']) && count(array_filter($formData['language_autre'], fn($l) => is_string($l) && trim($l) !== '')) > 0;
            $required = !$adminMode && !$_hasLangAutre;
            $hxPost   = $mode === 'partage' ? "/partage/language-autre-fragment" : "/admin/language-autre-fragment.php";
            $hxTarget = "#languages-required-asterisk";
            $hxSwap   = "outerHTML";
            $labelHtml = htmlspecialchars($label) . '<span id="languages-required-asterisk">' . ($required ? ' <span class="asterisk">*</span>' : '') . '</span>';
            include APP_ROOT . "/templates/partials/form/checkbox-list.php";
            unset($hxSwap, $_hasLangAutre, $labelHtml);
            ?>
            <?php
            $_langAutreRequired = empty($formData["languages"]);
            // Build selectedLanguages array from form data or current other languages
            $_selectedOtherLangs = [];
            if (!empty($formData['language_autre']) && is_array($formData['language_autre'])) {
                foreach ($formData['language_autre'] as $_l) {
                    if (is_string($_l) && trim($_l) !== '') {
                        $_selectedOtherLangs[] = ['name' => trim($_l)];
                    }
                }
            } elseif (!empty($selectedOtherLanguages) && is_array($selectedOtherLanguages)) {
                $_selectedOtherLangs = array_map(fn($n) => ['name' => $n], $selectedOtherLanguages);
            } else {
                $_langRaw = $formData["language_autre"] ?? '';
                if (is_string($_langRaw) && $_langRaw !== '') {
                    foreach (array_map('trim', explode(',', $_langRaw)) as $_l) {
                        if ($_l !== '') {
                            $_selectedOtherLangs[] = ['name' => $_l];
                        }
                    }
                }
            }
            ?>
            <?php
            $name = "language_autre";
            $label = "Autre(s) langue(s) :";
            $placeholder = "Rechercher une langue…";
            $hint = "Si votre TFE contient une langue absente de la liste, précisez-la ici.";
            $selectedLanguages = $_selectedOtherLangs;
            $required = $_langAutreRequired && !$adminMode;
            $hxPost = ($mode === 'partage') ? "/partage/language-search-fragment" : "/admin/language-search-fragment.php";
            include APP_ROOT . "/templates/partials/form/language-search.php";
            unset($_langAutreRequired, $_selectedOtherLangs, $_langRaw, $_l, $name, $label, $placeholder, $hint, $selectedLanguages, $required, $hxPost);
            ?>
        </fieldset>

        <!-- ═══════════════════ Mots-clés ═══════════════════ -->
        <?php
        if ($mode === "partage" && isset($helpFn)) {
            $helpContent = $helpFn("fieldset_keywords");
            $helpKey     = 'fieldset_keywords';
            include APP_ROOT . "/templates/partials/form/form-help-block.php";
        }
        ?>
        <fieldset>
            <legend>Mots-clés</legend>
            <?php
            // Build selectedTags array from form data or thesis keywords
            $_selectedTags = [];
            // If formData has tag as an array (pill-based repopulation), prefer that
            if (!empty($formData['tag']) && is_array($formData['tag'])) {
                foreach ($formData['tag'] as $_t) {
                    if (is_string($_t) && trim($_t) !== '') {
                        $_selectedTags[] = ['name' => trim($_t)];
                    }
                }
            } elseif (!empty($currentTags) && is_array($currentTags)) {
                $_selectedTags = array_map(fn($n) => ['name' => $n], $currentTags);
            } else {
                $_tagsRaw = $formData["tag"] ?? '';
                if (is_string($_tagsRaw) && $_tagsRaw !== '') {
                    foreach (array_map('trim', explode(',', $_tagsRaw)) as $_t) {
                        if ($_t !== '') {
                            $_selectedTags[] = ['name' => $_t];
                        }
                    }
                }
            }

            $name = "tag";
            $label = "Mots-clés :";
            $placeholder = "Rechercher un mot-clé…";
            $hint = "Tapez pour rechercher ou créer des mots-clés.";
            $selectedTags = $_selectedTags;
            $required = !$adminMode;
            $minTags = ($mode === 'partage') ? 3 : 0;
            $hxPost = ($mode === 'partage') ? "/partage/tag-search-fragment" : "/admin/tag-search-fragment.php";
            include APP_ROOT . "/templates/partials/form/tag-search.php";
            unset($_tagsRaw, $_selectedTags, $_t, $name, $label, $placeholder, $hint, $selectedTags, $hxPost, $minTags, $required);
            ?>
        </fieldset>

        <!-- ═══════════════════ Cadre académique ═══════════════════ -->
        <?php
        if ($mode === "partage" && isset($helpFn)) {
            $helpContent = $helpFn("fieldset_academic");
            $helpKey     = 'fieldset_academic';
            include APP_ROOT . "/templates/partials/form/form-help-block.php";
        }
        include APP_ROOT .
            "/templates/partials/form/fieldset-academic.php"; ?>

        <!-- ═══════════════════ Composition du jury ═══════════════════ -->
        <?php
        if ($mode === "partage" && isset($helpFn)) {
            $helpContent = $helpFn("fieldset_jury");
            $helpKey     = 'fieldset_jury';
            include APP_ROOT . "/templates/partials/form/form-help-block.php";
        }
        require APP_ROOT . "/templates/partials/form/jury-fieldset.php";
        ?>

        <!-- ═══════════════════ Format(s) + Fichiers ═══════════════════ -->
<?php if ($filesMode === 'add'): ?>
        <?php
        // Add / partage mode: Format + Fichiers rendered as one HTMX-swappable block.
        // Synthesise POST-like data so fichiers-fragment.php can render the initial state.
        if ($mode === "partage" && isset($helpFn)) {
            $helpContent = $helpFn("fieldset_files");
            $helpKey     = 'fieldset_files';
            include APP_ROOT . "/templates/partials/form/form-help-block.php";
        }
        // Temporarily populate $_POST so the fragment can read formats/website/annexes values.
        $_savedPost = $_POST;
        $_POST['formats']       = $checkedFormatsForSiteWeb;
        $_POST['website_url']   = $existingWebsiteUrl;
        $_POST['website_label'] = $existingWebsiteLabel;
        $_POST['admin_mode']    = $adminMode ? '1' : '0';
        $_POST['has_annexes']   = $formData['has_annexes'] ?? null;

        // Build existing-files JSON for FilePond edit mode
        $existingFilesJsonForTfe = [];
        if (!empty($currentFiles)) {
            foreach ($currentFiles as $f) {
                $ft = $f['file_type'] ?? '';
                $fp = $f['file_path'] ?? '';
                // Skip cover (handled separately) and website/peertube (no actual file)
                if ($ft === 'cover' || str_starts_with($fp, 'http://') || str_starts_with($fp, 'https://') || str_starts_with($fp, 'peertube_ids:')) {
                    continue;
                }
                // Only include files that can be streamed back via load.php
                $existingFilesJsonForTfe[] = [
                    'source'  => (string)((int)$f['id']),
                    'options' => ['type' => 'local'],
                ];
            }
        }

        include APP_ROOT . '/public/partage/fichiers-fragment.php';
        $_POST = $_savedPost;
        unset($_savedPost);
        ?>
<?php else: ?>
        <!-- Edit mode: reuse the same Format + Fichiers HTMX fragment as add/partage -->
        <?php
        // Synthesise POST-like data so fichiers-fragment.php renders the initial state.
        $_savedPost = $_POST;
        $_POST['formats']       = $checkedFormatsForSiteWeb;
        $_POST['website_url']   = $existingWebsiteUrl;
        $_POST['website_label'] = $existingWebsiteLabel;
        $_POST['admin_mode']    = $adminMode ? '1' : '0';
        $_POST['edit_mode']     = '1';
        $_POST['_cover']        = $currentCover['file_path'] ?? null;
        $_POST['has_annexes']   = $formData['has_annexes'] ?? null;

        // Build existing-files JSON for FilePond edit mode
        $existingFilesJsonForTfe = [];
        if (!empty($currentFiles)) {
            foreach ($currentFiles as $f) {
                $ft = $f['file_type'] ?? '';
                $fp = $f['file_path'] ?? '';
                // Skip cover (handled separately) and website/peertube (no actual file)
                if ($ft === 'cover' || str_starts_with($fp, 'http://') || str_starts_with($fp, 'https://') || str_starts_with($fp, 'peertube_ids:')) {
                    continue;
                }
                // Only include files that can be streamed back via load.php
                $existingFilesJsonForTfe[] = [
                    'source'  => (string)((int)$f['id']),
                    'options' => ['type' => 'local'],
                ];
            }
        }

        include APP_ROOT . '/public/partage/fichiers-fragment.php';
        $_POST = $_savedPost;
        unset($_savedPost);
        ?>


<?php endif; ?>

        <!-- ═══════════════════ Métadonnées complémentaires ═══════════════════
        (Durée/Nombre de pages supprimés — redondants avec les fichiers attachés) -->

        <!-- ═══════════════════ Degrés d'ouverture et licences ═══════════════════ -->
        <?php
        if ($mode === "partage" && isset($helpFn)) {
            $helpContent = $helpFn("fieldset_access");
            $helpKey     = 'fieldset_access';
            include APP_ROOT . "/templates/partials/form/form-help-block.php";
        }
        include APP_ROOT .
            "/templates/partials/form/fieldset-licence-explanation.php";
        ?>

<?php if ($showBackoffice): ?>
        <!-- ═══════════════════ Backoffice ═══════════════════ -->
        <fieldset>
            <legend>Backoffice</legend>

            <!-- 1. Note contextuelle -->
            <div class="admin-form-group">
                <label for="context_note">Note contextuelle :</label>
                <div>
                    <textarea id="context_note" name="context_note"
                              rows="4" maxlength="1500"><?= htmlspecialchars(
                                  $currentContextNote ??
                                      ($formData["context_note"] ?? ""),
                              ) ?></textarea>
                    <small>Visible publiquement pour les TFE Interne ou Interdit. Max 1 500 caractères.</small>
                </div>
            </div>

            <!-- 2. Points du jury -->
            <div class="admin-form-group">
                <label for="jury_points">Points du jury :</label>
                <input type="number" id="jury_points" name="jury_points"
                       value="<?= htmlspecialchars(
                           $currentRaw["jury_points"] ??
                               ($formData["jury_points"] ?? ""),
                       ) ?>"
                       step="0.01" min="0" max="20" placeholder="sur 20">
                <small>Note du jury (interne, non visible publiquement).</small>
            </div>

            <!-- 3. Remarques -->
            <div class="admin-form-group">
                <label for="remarks">Remarques :</label>
                <textarea id="remarks" name="remarks" rows="4"><?= htmlspecialchars(
                    $currentRaw["remarks"] ?? ($formData["remarks"] ?? ""),
                ) ?></textarea>
                <small>Notes internes (non visibles publiquement).</small>
            </div>

            <!-- 4. Lien BAIU -->
            <?php
            $name = 'lien'; $label = 'Lien BAIU :'; $value = $oldFn('lien');
            $type = 'url'; $placeholder = 'https://...'; $hint = '';
            include APP_ROOT . '/templates/partials/form/text-field.php';
            ?>

            <!-- 5. Exemplaire BAIU -->
            <div class="admin-form-group">
                <label class="admin-checkbox-label">
                    <input type="checkbox" name="exemplaire_baiu" value="1"
                           <?= !empty(
                               $currentRaw["exemplaire_baiu"] ??
                                   ($formData["exemplaire_baiu"] ?? false)
                           )
                               ? "checked"
                               : "" ?>>
                    Exemplaire physique BAIU
                </label>
                <small>Case logistique : cocher si un exemplaire physique est disponible à la BAIU.</small>
            </div>

            <!-- 6. Exemplaire ERG -->
            <div class="admin-form-group">
                <label class="admin-checkbox-label">
                    <input type="checkbox" name="exemplaire_erg" value="1"
                           <?= !empty(
                               $currentRaw["exemplaire_erg"] ??
                                   ($formData["exemplaire_erg"] ?? false)
                           )
                               ? "checked"
                               : "" ?>>
                    Exemplaire physique ERG
                </label>
                <small>Case logistique : cocher si un exemplaire physique est disponible à l'ERG.</small>
            </div>

            <!-- 7. Contact interne -->
            <div class="admin-form-group">
                <label for="contact_interne">Contact interne :</label>
                <input type="email" id="contact_interne" name="contact_interne"
                       value="<?= htmlspecialchars($contactInterne ?? $formData['contact_interne'] ?? '') ?>"
                       placeholder="ton.email@exemple.be">
                <small>Adresse de contact interne (non visible publiquement). Peut être laissé vide.</small>
            </div>

            <!-- 8. Publication -->
            <div class="admin-form-group">
                <label class="admin-checkbox-label">
                    <input type="checkbox" name="is_published" value="1"
                           <?= !empty($currentRaw["is_published"] ?? false)
                               ? "checked"
                               : "" ?>>
                    Publier ce TFE sur le site public
                </label>
                <small>Si coché, la fiche apparaîtra dans les résultats de recherche du site public.</small>
            </div>
        </fieldset>
<?php endif; ?>

<?php if ($showEmailConfirmation): ?>
        <!-- ═══════════════════ E-mail de confirmation ═══════════ -->
        <fieldset>
            <legend>E-mail de confirmation</legend>
            <?php if ($mode === "partage" && isset($helpFn)): ?>
            <?php
            $helpContent = $helpFn("fieldset_email");
            $helpKey     = 'fieldset_email';
            include APP_ROOT . "/templates/partials/form/form-help-block.php";
            ?>
            <?php endif; ?>
            <?php
            $name = "confirmation_email";
            $label = "Adresse e-mail :";
            $value = $oldFn("confirmation_email");
            $type = "email";
            $required = !$adminMode;
            $placeholder = "ton.email@exemple.be";
            $hint =
                "Nécessaire pour recevoir le récapitulatif de ta soumission.";
            include APP_ROOT . "/templates/partials/form/text-field.php";
            ?>
        </fieldset>
<?php endif; ?>

        <div class="form-footer admin-form-footer">
            <fieldset id="upload-progress-wrap" style="display:none;">
                <legend><span id="upload-progress-label">Téléversement en cours…</span></legend>
                <progress id="upload-progress-bar" value="0" max="100"></progress>
                <p id="upload-progress-file" style="font-size:var(--step--1);color:var(--text-secondary);margin:var(--space-2xs) 0 0 0;"></p>
                <small style="display:block;color:var(--text-tertiary);margin-top:var(--space-2xs);">Cette opération peut prendre plusieurs minutes selon la taille des fichiers. Ne fermez pas la page.</small>
            </fieldset>
            <button type="submit" name="go" class="btn btn--primary"><?= $mode === 'edit' ? 'Enregistrer' : 'Soumettre' ?></button>
<?php if ($mode === 'add' || $mode === 'edit'): ?>
            <a href="/admin/" class="btn btn--secondary">Annuler</a>
<?php endif; ?>
        </div>

    </form>