<?php

use Nickyeoman\Validation;
use Novaconium\Services\TagManager;

$v = new Nickyeoman\Validation\Validate();

$url_error = '/novaconium/page/edit/' . $post->get('id'); // fallback for errors

// -------------------------
// Check login
// -------------------------
if (empty($session->get('username'))) {
    $messages->error('You are not logged in');
    $redirect->url('/novaconium/login');
    makeitso();
}

// -------------------------
// Check CSRF token
// -------------------------
if ($session->get('token') != $post->get('token')) {
    $messages->error('Invalid Token');
    $redirect->url('/novaconium/pages');
    makeitso();
}

// -------------------------
// Gather POST data
// -------------------------
$id          = $post->get('id');
$title       = $_POST['title'] ?? '';
$heading     = $_POST['heading'] ?? '';
$description = $_POST['description'] ?? '';
$keywords    = $_POST['keywords'] ?? '';
$author      = $_POST['author'] ?? '';
$slug        = $_POST['slug'] ?? '';
$path        = $_POST['path'] ?? null;
$intro       = $_POST['intro'] ?? '';
$body        = $_POST['body'] ?? '';
$notes       = $_POST['notes'] ?? '';
$draft       = !empty($post->get('draft')) ? 1 : 0;
$changefreq  = $_POST['changefreq'] ?? 'monthly';
$priority    = $_POST['priority'] ?? 0.0;
$tags_json   = $_POST['tags_json'] ?? '[]';

// -------------------------
// Decode & sanitize tags
// -------------------------
$tags = json_decode($tags_json, true);
if (!is_array($tags)) $tags = [];
$tags = array_map('trim', $tags);
$tags = array_filter($tags, fn($t) => $t !== '');
$tags = array_unique($tags);

// -------------------------
// Validate required fields
// -------------------------
if (empty($title) || empty($slug) || empty($body)) {
    $messages->error('Title, Slug, and Body are required.');
    $redirect->url($url_error);
    makeitso();
}

try {
    $tagManager = new TagManager();

    if ($id == 'newpage') {
        // -------------------------
        // Create new page
        // -------------------------
        $query = "INSERT INTO `pages`
                    (`title`, `heading`, `description`, `keywords`, `author`,
                     `slug`, `path`, `intro`, `body`, `notes`,
                     `draft`, `changefreq`, `priority`, `created`)
                  VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, NOW())";
        $params = [
            $title, $heading, $description, $keywords, $author,
            $slug, $path, $intro, $body, $notes,
            $draft, $changefreq, $priority
        ];
        $db->query($query, $params);
        $id = $db->lastid;
        $messages->notice('Page Created');

    } else {
        // -------------------------
        // Update existing page
        // -------------------------
        $query = "UPDATE `pages` SET
                    `title` = ?, `heading` = ?, `description` = ?, `keywords` = ?, `author` = ?,
                    `slug` = ?, `path` = ?, `intro` = ?, `body` = ?, `notes` = ?,
                    `draft` = ?, `changefreq` = ?, `priority` = ?, `updated` = NOW()
                  WHERE `id` = ?";
        $params = [
            $title, $heading, $description, $keywords, $author,
            $slug, $path, $intro, $body, $notes,
            $draft, $changefreq, $priority, $id
        ];
        $db->query($query, $params);
        $messages->notice('Page Updated');
    }

    // -------------------------
    // Save tags (for both new and existing pages)
    // -------------------------
    $tagManager->setTagsForPage($id, $tags);

} catch (Exception $e) {
    $messages->error($e->getMessage());
    $redirect->url($url_error);
    makeitso();
}

// Redirect back to edit page
$redirect->url('/novaconium/page/edit/' . $id);