<?php
/**
 * File input partial.
 *
 * Variables consumed:
 *   string      $name      — input name attribute (used for id too unless $id set)
 *   string      $label     — visible label text
 *   string      $accept    — MIME types / extensions for the accept attribute (e.g. 'image/jpeg,image/png')
 *   string|null $hint      — optional hint shown in <small> below the input
 *   bool        $required  — whether the field is required; default false
 *   bool        $multiple  — whether to allow multiple file selection; default false
 *   string|null $id        — override the id attribute (defaults to $name)
 *   string|null $fieldName — validation field name for HTMX inline validation ('couverture', 'note_intention', 'tfe', 'annexes')
 */

$accept    = $accept    ?? '';
$hint      = $hint      ?? null;
$hintRaw   = $hintRaw   ?? false; // when true, $hint is emitted as raw HTML
$required  = $required  ?? false;
$multiple  = $multiple  ?? false;
$id        = $id        ?? $name;
$fieldName = $fieldName ?? $name; // validation field name
$previewId = 'fp-' . htmlspecialchars($id);

// Determine HTMX POST endpoint for inline file validation
if (defined('ADMIN_MODE') && ADMIN_MODE) {
    $validateUrl = '/admin/validate-file-fragment.php';
} else {
    $validateUrl = '/partage/validate-file-fragment';
}
?>
<div>
    <label for="<?= htmlspecialchars($id) ?>"><?= htmlspecialchars($label) ?><?= $required ? ' <span class="asterisk">*</span>' : '' ?></label>
    <!-- HTMX validation: scoped to this field -->
    <form class="admin-file-input file-validation-form"
         hx-post="<?= htmlspecialchars($validateUrl) ?>"
         hx-encoding="multipart/form-data"
         hx-trigger="change from:input[type='file']"
         hx-target="find .file-validation-msg"
         hx-swap="innerHTML"
         hx-sync="replace">
        <input type="hidden" name="field_name" value="<?= htmlspecialchars($fieldName) ?>">
        <input type="hidden" name="admin_mode" value="<?= ($adminMode ?? false) ? '1' : '0' ?>">
        <input type="file"
               id="<?= htmlspecialchars($id) ?>"
               name="<?= htmlspecialchars($name) ?><?= $multiple ? '[]' : '' ?>"
               <?= $accept   ? 'accept="'   . htmlspecialchars($accept)  . '"' : '' ?>
               <?= $multiple ? 'multiple' : '' ?>
               <?= $required ? 'required' : '' ?>
               data-preview="<?= $previewId ?>">
        <div class="file-validation-msg" aria-live="polite"></div>
        <div id="<?= $previewId ?>" class="file-preview-list" aria-live="polite"></div>
        <?php if ($hint): ?>
        <small><?= $hintRaw ? $hint : htmlspecialchars($hint) ?></small>
        <?php endif; ?>
    </form>
</div>
<?php
unset($accept, $hint, $hintRaw, $required, $multiple, $id, $fieldName, $previewId, $validateUrl);
