<?php
namespace app\admin\model\cms;

use app\admin\model\general\Lang as LangModel;
use think\Exception;
use think\facade\Cache;
use think\facade\Db;
use think\Model;

class Category extends Model
{
    protected $name = 'cms_category';
    protected static $arrparent;
    protected static $arrchild;

    public function getSettingAttr($value, $data)
    {
        return is_array($value) ? $value : (array) json_decode($data['setting'], true);
    }

    public function setSettingAttr($value)
    {
        return is_array($value) ? json_encode($value, JSON_UNESCAPED_UNICODE) : $value;
    }

    public static function onAfterWrite($row)
    {
        $cmsConfig = get_addon_config('cms');
        if (isset($cmsConfig['site_weburlpush']) && $cmsConfig['site_weburlpush']) {
            hook('weburlpush', buildCatUrl($row->id, '', true, true));
        }
        if (isset($row['priv_groupid'])) {
            CategoryPriv::update_priv($row->id, $row->priv_groupid, 0);
        }
        Cache::set('Category', null);
    }

    public static function onAfterInsert($row)
    {
        $defaultLang = LangModel::getDefaultMark();
        self::saveTranslation($row->id, [
            'catname' => $row->catname,
            'description' => $row->description,
            'meta_title' => $row->setting['meta_title'] ?? '',
            'meta_keywords' => $row->setting['meta_keywords'] ?? '',
            'meta_description' => $row->setting['meta_description'] ?? '',
        ], $defaultLang);

        if ($row['type'] == 1) {
            (new Page)->savePage([
                'catid' => $row->id,
                'title' => $row->catname,
            ], $defaultLang);
        }
    }

    public static function onBeforeUpdate($row)
    {
        if (isset($row['template_child']) && $row['template_child']) {
            $setting['category_template'] = $row['setting']['category_template'] ?? '';
            $setting['list_template'] = $row['setting']['list_template'] ?? '';
            $setting['show_template'] = $row['setting']['show_template'] ?? '';
            $setting['page_template'] = $row['setting']['page_template'] ?? '';
            $idstr = self::get_arrchildid($row->id);
            $children = Category::where('id', 'in', $idstr)->select();
            foreach ($children as $child) {
                $child->setting = array_merge($child->setting, $setting);
                $child->save();
            }
        }
    }

    public static function onAfterUpdate($row)
    {
        $changedData = $row->getChangedData();
        if ($row['type'] == 1 && isset($changedData['type'])) {
            (new Page)->savePage([
                'catid' => $row->id,
                'title' => $row->catname,
            ], LangModel::getDefaultMark());
        }
        getCategory($row->id, '', true);
    }

    public static function onBeforeDelete($row)
    {
        if (self::where('parentid', $row->id)->find()) {
            throw new Exception('栏目含有子栏目，不得删除！');
        }
        $catInfo = self::find($row->id);
        if ($catInfo['modelid'] && $catInfo['type'] == 2) {
            $tbname = getModel($catInfo['modelid'], 'tablename');
            if ($tbname && Db::name($tbname)->where(['catid' => $row->id])->find()) {
                throw new Exception('栏目含有信息，不得删除！');
            }
        } else {
            Page::where(['catid' => $row->id])->delete();
        }
        Db::name('cms_category_data')->where('catid', $row->id)->delete();
        Cache::set('Category', null);
    }

    public static function saveTranslation($catid, array $data, $lang)
    {
        $payload = [
            'catname' => $data['catname'] ?? '',
            'description' => $data['description'] ?? '',
            'meta_title' => $data['meta_title'] ?? '',
            'meta_keywords' => $data['meta_keywords'] ?? '',
            'meta_description' => $data['meta_description'] ?? '',
        ];
        $row = CategoryData::where(['catid' => $catid, 'lang' => $lang])->find();
        if ($row) {
            $row->save($payload);
        } else {
            $payload['catid'] = $catid;
            $payload['lang'] = $lang;
            CategoryData::create($payload);
        }
    }

    public static function getTranslate($catid, $lang = null)
    {
        $lang = $lang ?: LangModel::getDefaultMark();
        $defaultLang = LangModel::getDefaultMark();
        $translate = CategoryData::where(['catid' => $catid, 'lang' => $lang])->find();
        if (!$translate && $lang !== $defaultLang) {
            $translate = CategoryData::where(['catid' => $catid, 'lang' => $defaultLang])->find();
        }
        return $translate;
    }

    public static function get_arrparentid($catid, $withself = false)
    {
        static $tree;
        if (!$tree) {
            $tree = \util\Tree::instance();
            $tree->init(Category::order('id asc')->field('id,parentid,catname')->select()->toArray(), 'parentid');
        }
        $parentIds = $tree->getParentsIds($catid, $withself);
        return implode(',', $parentIds);
    }

    public static function get_arrchildid($catid, $withself = false)
    {
        static $tree;
        if (!$tree) {
            $tree = \util\Tree::instance();
            $tree->init(Category::order('id asc')->field('id,parentid,catname')->select()->toArray(), 'parentid');
        }
        $childIds = $tree->getChildrenIds($catid, $withself);
        return implode(',', $childIds);
    }
}