<?php

namespace bizGhs\shop\classes;

use bizGhs\base\classes\BaseClass;
use common\components\util;
use Yii;
use yii\db\Expression;

/**
 * 批发端通知公告业务类
 */
class GhsNoticeClass extends BaseClass
{
    public static $baseFile = '\bizGhs\shop\models\GhsNotice';

    /** 展示位置：分类菜单 */
    const POSITION_CATEGORY = 1;
    /** 展示位置：订单提交 */
    const POSITION_ORDER = 2;

    /**
     * 展示位置文案映射
     */
    public static function getPositionMap(): array
    {
        return [
            self::POSITION_CATEGORY => '分类菜单',
            self::POSITION_ORDER => '订单提交',
        ];
    }

    /**
     * 客户端公告列表（不分页）
     */
    public static function getClientNoticeList(int $mainId, int $position = 0): array
    {
        if ($mainId <= 0) {
            return [];
        }
        $query = self::getModel()::find()
            ->where(['mainId' => $mainId, 'isDel' => 0, 'status' => 1]);
        if ($position > 0) {
            $query->andWhere(new Expression('FIND_IN_SET(:position, [[position]])', [':position' => (string)$position]));
        }
        $list = $query->orderBy('sort DESC, id DESC')->asArray()->all();
        return self::groupBaseInfo($list);
    }

    /**
     * 客户端公告详情（仅校验公告本身有效）
     */
    public static function getClientDetail(int $id): array
    {
        $info = self::getById($id);
        if (empty($info) || intval($info['isDel']) === 1 || intval($info['status']) !== 1) {
            util::fail('公告不存在');
        }
        return self::getDetail($id);
    }

    /**
     * 通用列表查询，供管理端与客户端复用
     */
    public static function searchList(array $params): array
    {
        $get = Yii::$app->request->get();
        $page = isset($get['page']) ? max(1, intval($get['page'])) : 1;
        $pageSize = !empty($get['pageSize']) ? intval($get['pageSize']) : Yii::$app->params['pageSize'];

        $query = self::getModel()::find()->where(['mainId' => intval($params['mainId'])]);

        if (isset($params['isDel'])) {
            $query->andWhere(['isDel' => intval($params['isDel'])]);
        }
        if (isset($params['status'])) {
            $query->andWhere(['status' => intval($params['status'])]);
        }
        if (!empty($params['title'])) {
            $query->andWhere(['like', 'title', trim($params['title'])]);
        }
        if (!empty($params['position'])) {
            $position = intval($params['position']);
            $query->andWhere(new Expression('FIND_IN_SET(:position, [[position]])', [':position' => (string)$position]));
        }

        $order = !empty($params['order']) ? $params['order'] : 'id DESC';
        $totalNum = (int)$query->count();
        $totalPage = $pageSize > 0 ? (int)ceil($totalNum / $pageSize) : 0;
        $list = $query->orderBy($order)
            ->offset(($page - 1) * $pageSize)
            ->limit($pageSize)
            ->asArray()
            ->all();

        return [
            'totalNum' => $totalNum,
            'totalPage' => $totalPage,
            'moreData' => $page < $totalPage ? 1 : 0,
            'list' => self::groupBaseInfo($list),
        ];
    }

    /**
     * 组装列表展示字段
     */
    public static function groupBaseInfo(array $list): array
    {
        $positionMap = self::getPositionMap();
        foreach ($list as $key => $item) {
            $positions = self::formatPositionToArr($item['position'] ?? '');
            $labels = [];
            foreach ($positions as $pos) {
                if (isset($positionMap[$pos])) {
                    $labels[] = $positionMap[$pos];
                }
            }
            $list[$key]['positions'] = $positions;
            $list[$key]['positionLabels'] = $labels;
        }
        return $list;
    }

    /**
     * 多选位置转逗号分隔字符串
     */
    public static function formatPositionToStr($positions): string
    {
        if (is_string($positions)) {
            $positions = array_filter(array_map('trim', explode(',', $positions)));
        }
        if (!is_array($positions)) {
            return '';
        }
        $valid = array_keys(self::getPositionMap());
        $positions = array_values(array_unique(array_map('intval', $positions)));
        $positions = array_values(array_intersect($positions, $valid));
        sort($positions);
        return implode(',', $positions);
    }

    /**
     * 逗号分隔字符串转位置数组
     */
    public static function formatPositionToArr(string $position): array
    {
        if ($position === '') {
            return [];
        }
        $positions = array_filter(array_map('trim', explode(',', $position)));
        return array_values(array_map('intval', $positions));
    }

    /**
     * 校验公告表单数据
     */
    public static function validateNoticeData(array $data): array
    {
        $title = trim($data['title'] ?? '');
        $summary = trim($data['summary'] ?? '');
        if ($title === '') {
            util::fail('请输入公告标题');
        }
        if (mb_strlen($title) > 20) {
            util::fail('标题不能超过20个字');
        }
        if ($summary === '') {
            util::fail('请输入公告简介');
        }
        if (mb_strlen($summary) > 70) {
            util::fail('公告简介不能超过70个字');
        }

        $position = self::formatPositionToStr($data['position'] ?? '');
        if ($position === '') {
            util::fail('请选择展示位置');
        }

        $content = $data['content'] ?? '';
        if ($content === '' || $content === '[]') {
            util::fail('请添加公告内容');
        }
        if (is_string($content)) {
            $contentArr = json_decode($content, true);
            if (!is_array($contentArr) || empty($contentArr)) {
                util::fail('公告内容格式不正确');
            }
        }

        return [
            'title' => $title,
            'summary' => $summary,
            'content' => is_string($content) ? $content : json_encode($content, JSON_UNESCAPED_UNICODE),
            'position' => $position,
            'sort' => intval($data['sort'] ?? 0),
            'status' => intval($data['status'] ?? 1) === 1 ? 1 : 0,
        ];
    }

    /**
     * 新增公告
     */
    public static function addNotice(array $data): int
    {
        $noticeData = self::validateNoticeData($data);
        if (!empty($data['mainId'])) {
            $noticeData['mainId'] = intval($data['mainId']);
        }
        if (!empty($data['staffId'])) {
            $noticeData['staffId'] = intval($data['staffId']);
        }
        if ($noticeData['status'] === 1) {
            $noticeData['publishTime'] = date('Y-m-d H:i:s');
        }
        $result = self::add($noticeData);
        return is_array($result) ? intval($result['id'] ?? 0) : intval($result);
    }

    /**
     * 更新公告
     */
    public static function updateNotice(int $id, array $data): void
    {
        $noticeData = self::validateNoticeData($data);
        $info = self::getById($id);
        if (empty($info)) {
            util::fail('公告不存在');
        }
        if (!empty($data['staffId'])) {
            $noticeData['staffId'] = intval($data['staffId']);
        }
        self::updateById($id, $noticeData);
    }

    /**
     * 公告详情
     */
    public static function getDetail(int $id): array
    {
        $info = self::getById($id);
        if (empty($info)) {
            util::fail('公告不存在');
        }
        $list = self::groupBaseInfo([$info]);
        return current($list);
    }

    /**
     * 软删除公告
     */
    public static function deleteNotice(int $id, int $staffId = 0): void
    {
        $updateData = ['isDel' => 1];
        if ($staffId > 0) {
            $updateData['staffId'] = $staffId;
        }
        self::updateById($id, $updateData);
    }

    /**
     * 上下架公告
     */
    public static function updateStatus(int $id, int $status, int $staffId = 0): void
    {
        $status = $status === 1 ? 1 : 0;
        $updateData = ['status' => $status];
        if ($status === 1) {
            $updateData['publishTime'] = date('Y-m-d H:i:s');
        }
        if ($staffId > 0) {
            $updateData['staffId'] = $staffId;
        }
        self::updateById($id, $updateData);
    }

    /**
     * 校验公告归属权限
     */
    public static function valid(array $info, int $mainId): void
    {
        if (empty($info) || intval($info['mainId']) !== intval($mainId)) {
            util::fail('没有权限操作该公告');
        }
        if (intval($info['isDel']) === 1) {
            util::fail('公告已删除');
        }
    }
}