<?php

namespace Code\Module;

use App;
use Code\Web\Controller;
use Code\Lib\Apps;
use Code\Lib\Channel;
use Code\Lib\PermissionDescription;
use Code\Lib\Libacl;
use Code\Render\Theme;

    
require_once('include/taxonomy.php');
require_once('include/conversation.php');

class Editpost extends Controller
{

    public function get()
    {

        $output = EMPTY_STR;

        if (!local_channel()) {
            notice(t('Permission denied.') . EOL);
            return '';
        }

        $post_id = ((argc() > 1) ? intval(argv(1)) : 0);

        if (!$post_id) {
            notice(t('Item not found') . EOL);
            return '';
        }

        $item = q(
            "SELECT * FROM item WHERE id = %d AND ( owner_xchan = '%s' OR author_xchan = '%s' ) LIMIT 1",
            intval($post_id),
            dbesc(get_observer_hash()),
            dbesc(get_observer_hash())
        );

        // don't allow web editing of potentially binary content (item_obscured = 1)

        if ((!$item) || $item[0]['verb'] === 'Question' || intval($item[0]['item_obscured'])) {
            notice(t('Item is not editable') . EOL);
            return '';
        }

        $item = array_shift($item);

        $owner_uid = intval($item['uid']);
        $owner = Channel::from_id($owner_uid);

        if ($item['resource_type'] === 'photo' && $item['resource_id'] && $owner) {
            goaway(z_root() . '/photos/' . $owner['channel_address'] . '/image/' . $item['resource_id'] . '?expandform=1');
        }

        if ($item['resource_type'] === 'event' && $item['resource_id']) {
            goaway(z_root() . '/events/' . $item['resource_id'] . '?expandform=1');
        }


        $channel = App::get_channel();

        $category = '';
        $hidden_mentions = '';
        $collections = [];
        $catsenabled = ((Apps::system_app_installed($owner_uid, 'Categories')) ? 'categories' : '');

        // we have a single item, but fetch_post_tags expects an array. Convert it before and after.
        $arr = fetch_post_tags([$item]);
        $item = array_shift($arr);

        if ($catsenabled) {
            $cats = get_terms_oftype($item['term'], TERM_CATEGORY);

            if ($cats) {
                foreach ($cats as $cat) {
                    if (strlen($category)) {
                        $category .= ', ';
                    }
                    $category .= $cat['term'];
                }
            }
        }

        $clcts = get_terms_oftype($item['term'], TERM_PCATEGORY);
        if ($clcts) {
            foreach ($clcts as $clct) {
                $collections[] = $clct['term'];
            }
        }

        $mentions = get_terms_oftype($item['term'], TERM_MENTION);
        if ($mentions) {
            foreach ($mentions as $mention) {
                if (strlen($hidden_mentions) && !str_contains($item['body'], $mention['url'])) {
                    $hidden_mentions .= ', ';
                }
                $hidden_mentions .= '@{' . $mention['url'] . '}';
            }
        }

        if ($item['attach']) {
            $j = json_decode($item['attach'], true);
            if ($j) {
                foreach ($j as $jj) {
                    if (!str_starts_with($jj['type'],'application/ld+json')) {
                        $r = q("select hash from attach where display_path = '%s'",
                            dbesc(str_replace(z_root() . '/cloud/' . $channel['channel_address'] . '/','',$jj['href']))
                        );
                        $hash = $r ? $r[0]['hash'] : $jj['href'];
                        $item['body'] .= "\n" . '[attachment]' . $hash . ',' . $jj['revision'] . '[/attachment]' . "\n";
                    }
                }
            }
        }
        $matches = [];

        if (preg_match_all("/\[share(.*?)message_id='(.*?)'(.*?)\[\/share]/ism",$item['body'], $matches, PREG_SET_ORDER)) {
            foreach ($matches as $match) {
                $r = q("select * from item where mid = '%s' and uid = %d",
                    dbesc($match[2]),
                    intval($item['uid'])
                );
                if ($r) {
                    $item['body'] = str_replace($match[0], '[share=' . $r[0]['id'] . '][/share]', $item['body']);
                }
            }
        }

        if (intval($item['item_unpublished'])) {
            // clear the old creation date if editing a saved draft. These will always show as just created.
            unset($item['created']);
        }

        if ($item['summary']) {
            $item['body'] = '[summary]' . $item['summary'] . '[/summary]' . "\n\n" . $item['body'];
        }

        $x = [
            'nickname' => $channel['channel_address'],
            'item' => $item,
            'editor_autocomplete' => true,
            'bbco_autocomplete' => 'bbcode',
            'return_path' => $_SESSION['return_url'],
            'button' => t('Submit'),
            'hide_voting' => true,
            'hide_future' => true,
            'hide_location' => true,
            'is_draft' => (bool)intval($item['item_unpublished']),
            'parent' => (($item['mid'] === $item['parent_mid']) ? 0 : $item['parent']),
            'mimetype' => $item['mimetype'],
            'ptyp' => $item['obj_type'],
            'body' => htmlspecialchars_decode(undo_post_tagging($item['body']), ENT_COMPAT),
            'post_id' => $post_id,
            'defloc' => $channel['channel_location'],
            'visitor' => true,
            'title' => htmlspecialchars_decode($item['title'], ENT_COMPAT),
            'category' => $category,
            'hidden_mentions' => $hidden_mentions,
            'showacl' => (bool) $item['item_unpublished'] && $item['mid'] === $item['parent_mid'],
            'lockstate' => (($item['allow_cid'] || $item['allow_gid'] || $item['deny_cid'] || $item['deny_gid']) ? 'lock' : 'unlock'),
            'acl' => Libacl::populate($item, true, PermissionDescription::fromGlobalPermission('view_stream'), Libacl::get_post_aclDialogDescription(), 'acl_dialog_post'),
            'bang' => EMPTY_STR,
            'permissions' => $item,
            'profile_uid' => $owner_uid,
            'catsenabled' => $catsenabled,
            'collections' => $collections,
            'jotnets' => true,
            'hide_expire' => true,
            'bbcode' => true,
            'checkin' => ($item['verb'] === 'Arrive'),
            'checkout' => ($item['verb'] === 'Leave'),
        ];

        $editor = status_editor($x);

        $output .= replace_macros(
            Theme::get_template('edpost_head.tpl'),
            ['$title' => t('Edit post'), '$cancel' => t('Cancel'), '$editor' => $editor]
        );

        return $output;
    }
}