<?php

namespace app\common\service;

use app\common\model\MessageNotice;
use app\common\model\Post;
use app\common\model\PostLike;
use app\common\validate\PostFavoriteValidate;
use app\common\traits\crud\CrudServiceTrait;
use app\common\model\PostFavorite;
use support\Request;

class PostFavoriteService
{

    use CrudServiceTrait;

    /**
     * 指定当前要操作的模型
     */
    protected string $modelClass = PostFavorite::class;

    /**
     * 验证器
     */
    protected $validator = PostFavoriteValidate::class;

    /**
     * 获取验证器
     */
    public function getValidator()
    {
        return  new $this->validator;
    }

    /** 分页列表 */
    public function serviceSelfList(Request $request, string $scene = 'self')
    {
        $result = $this->cqyProcess(ucfirst($scene), $request);
        if ($result === false) {
            $config = $this->buildQueryConfig($request, $scene);
            $limit = (int)$request->get('size', 15);
            $page  = (int)$request->get('current',  1);
            $result = $this->logicList($config, $limit, $page);
        }
        return $this->postProcess(ucfirst($scene), $result);
    }

    public function complexQueryIndex1(Request $request)
    {
        $param = $request->all();
        $limit = (int)$request->get('size', 15);
        $page  = (int)$request->get('current',  1);
        $query = PostFavorite::with(['post'])
            ->where('user_id',$request->user->uid)
            ->whereHas('post', function ($q) use ($param) {
                $q->where('status', 1);

                // 关键字过滤（如果存在）
                if (!empty($param['keyword'])) {
                    $q->where('content', 'like', "%{$param['keyword']}%");
                }
            });

//        if (empty($param['order'])) {
//            $param['order'] = 'desc';
//        }
//        if (isset($param['sort_by']) && $param['sort_by'] == 'favorite') {
//            $query->orderBy('post.favorite', $param['order']);
//        } elseif (isset($param['sort_by']) && $param['sort_by'] == 'browse') {
//            $query->orderBy('post.browse', $param['order']);
//        } else {
//            $query->orderBy('post.id', $param['order']);
//        }
        return $query->paginate($limit, ['*'], 'page', $page);
    }

    public function complexQueryIndex(Request $request)
    {
        $param = $request->all();
        $size = $param['size'] ?? 10;
        $current = $param['current'] ?? 1;
        $orderField = $param['sort_by'] ?? 'post_favorites.created_at'; // 默认按收藏时间
        $orderType = in_array($param['order'],['desc','asc']) ? $param['order'] :'desc'; // 默认倒序

        // 构建基础查询
        $query = PostFavorite::select('post_favorite.*') // 明确选择主表字段
        ->join('post', 'post_favorite.post_id', '=', 'post.id') // 连接posts表
        ->where('post_favorite.user_id', $request->user->uid)
            ->where('post.status', 1); // 固定帖子状态过滤

        // 关键字过滤
        if (!empty($param['keyword'])) {
            $query->where('post.content', 'like', "%{$param['keyword']}%");
        }

        // 动态排序逻辑
        switch ($orderField) {
            case 'id':
            case 'browse':
            case 'created_at':
                // 直接使用posts表的字段排序
                $orderBy = 'post.'.$orderField;
                break;
            case 'post_favorite.created_at':
            default:
                // 默认使用收藏表的创建时间
                $orderBy = 'post_favorite.created_at';
                break;
        }
        $query->orderBy($orderBy, $orderType);

// 执行分页查询

        $paginator = $query->paginate($size, ['*'], 'page', $current);

// 由于使用了join，需要重新手动加载关联的post数据
        $paginator->getCollection()->transform(function ($item) {
            $item->post = Post::find($item->post_id); // 或者用 Post::select(...)->find()
            return $item;
        });

        $res = ['records' => $paginator->items(),
            'current' => $current ?? 1,
            'size' => $size,
            'total' => $query->count(),
        ];
        return $res;
    }

    /**
     * 构造 CrudUtil 查询配置
     */
    protected function buildQueryConfig(Request $request, string $scene = 'default'): array
    {
        $p = $request->all();

        $config = [];
        $config['model'] = $this->modelClass;
        switch ($scene) {
            case 'default':
                $config['order']['id'] = 'desc';
                break;
            case 'self':
                $config['where']['user_id'] = $request->user->uid;
                $config['order']['id'] = 'desc';
                break;
            case 'index':
                $config['order']['id'] = 'desc';
                break;
            case 'show':
                $config['where']['id'] = $p['id'];
                $config['where']['status'] = 1;
                break;
            case 'store':
                break;
            case 'update':
                $config['where']['id'] = $p['id'];
                break;
            case 'destroy':
                $config['where']['id'] = $p['id'];
                break;
        }

        return $config;
    }


    /**
     * 添加前置处理
     */
    public function beforeServiceStore($data, Request $request)
    {
        $data['user_id'] = $request->user->uid;;
        return $data;
    }

    /**
     * 添加后置处理
     */
    public function afterServiceStore($res)
    {
        $data = [];
        $data['post_id'] = $res['post_id'];
        $data['receiver_user_id'] = Post::where(['id' => $data['post_id']])->value('user_id');
        $data['sender_user_id'] = $res['user_id'];
        $data['type'] = 2;
        MessageNotice::create($data);
        $post = Post::where(['id' => $data['post_id']])->first();
        $post['favorite'] = $post['favorite']+1;
        $post->save();
    }


    /**
     * 添加后置处理
     */
    public function serviceDelete(Request $request)
    {
        $param = $request->all();

        if (empty($param['post_id']) && empty($param['user_id'])) {
            throw new \Exception("参数错误");
        }

        $where = [];
        $where['post_id'] = $param['post_id'];
        $where['user_id'] = $request->user->uid;
        $count = PostFavorite::where($where)->delete();

        if ($count) {
            $post = Post::where(['id' => $param['post_id']])->first();
            $post['favorite'] = $post['favorite']-1;
            $post['favorite'] = $post['favorite']<0?0:$post['favorite'];
            $post->save();
        }

        return $count;
    }
}