<?php
// +----------------------------------------------------------------------
// | YwxApp [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2026-2036 http://ywxapp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Author: ywxapp<admin@ywxapp.cn>
// +----------------------------------------------------------------------
declare (strict_types = 1);

namespace addon\blog\controller;
use ywxapp\controller\FrontendBase;

use addon\blog\model\BlogArticle as ArticleModel;
use addon\blog\model\BlogLike as LikeModel;
use addon\blog\model\BlogFavorite as FavoriteModel;
use think\facade\Request;

/**
 * Interaction 类
 *
 * @author ywxapp <admin@ywxapp.cn>
 */
class Interaction extends FrontendBase
{
    /**
     * 公开访问（登录校验由方法内部通过 $this->auth 处理，会员统一以 uid 标识）
     * @var array
     */
    protected $noNeedLogin = ['*'];

    /**
     * 点赞/取消点赞
     */
    public function like()
    {
        $article_id = Request::param('article_id');
        if (! $article_id) {
            return json(['code' => 0, 'msg' => '参数错误']);
        }
        if (! $this->auth->isLogin) {
            return json(['code' => 0, 'msg' => '请先登录']);
        }
        $uid = $this->auth->model->uid;

        $article = ArticleModel::find($article_id);
        if (! $article) {
            return json(['code' => 0, 'msg' => '文章不存在']);
        }

        $like = LikeModel::where('uid', $uid)
            ->where('aid', $article_id)
            ->find();

        if ($like) {
            $like->delete();
            $article->like_count = max(0, $article->like_count - 1);
            $action              = 'cancel';
        } else {
            $like              = new LikeModel();
            $like->uid          = $uid;
            $like->aid          = $article_id;
            $like->save();
            $article->like_count += 1;
            $action               = 'add';
        }

        $article->save();

        return json([
            'code'   => 1,
            'msg'    => $action == 'add' ? '点赞成功' : '已取消点赞',
            'count'  => $article->like_count,
            'action' => $action,
        ]);
    }

    /**
     * 收藏/取消收藏
     */
    public function favorite()
    {
        $article_id = Request::param('article_id');
        if (! $article_id) {
            return json(['code' => 0, 'msg' => '参数错误']);
        }
        if (! $this->auth->isLogin) {
            return json(['code' => 0, 'msg' => '请先登录']);
        }
        $uid = $this->auth->model->uid;

        $article = ArticleModel::find($article_id);
        if (! $article) {
            return json(['code' => 0, 'msg' => '文章不存在']);
        }

        $favorite = FavoriteModel::where('uid', $uid)
            ->where('aid', $article_id)
            ->find();

        if ($favorite) {
            $favorite->delete();
            $article->favorite_count = max(0, $favorite->favorite_count - 1);
            $action                  = 'cancel';
        } else {
            $favorite              = new FavoriteModel();
            $favorite->uid         = $uid;
            $favorite->aid         = $article_id;
            $favorite->save();
            $article->favorite_count += 1;
            $action                   = 'add';
        }

        $article->save();

        return json([
            'code'   => 1,
            'msg'    => $action == 'add' ? '收藏成功' : '已取消收藏',
            'count'  => $article->favorite_count,
            'action' => $action,
        ]);
    }

    /**
     * 分享计数 +1（无需登录）
     */
    public function share()
    {
        $article_id = Request::param('article_id');
        $article   = ArticleModel::find($article_id);
        if (! $article) {
            return json(['code' => 0, 'msg' => '文章不存在']);
        }

        $article->share_count += 1;
        $article->save();

        return json([
            'code'  => 1,
            'msg'   => '已记录分享',
            'count' => $article->share_count,
        ]);
    }

    /**
     * 获取用户互动状态
     */
    public function getUserInteractions($article_id)
    {
        $interactions = [
            'liked'     => false,
            'favorited' => false,
        ];

        if ($this->auth->isLogin) {
            $uid = $this->auth->model->uid;
            $interactions['liked'] = LikeModel::where('uid', $uid)
                ->where('aid', $article_id)
                ->count() > 0;

            $interactions['favorited'] = FavoriteModel::where('uid', $uid)
                ->where('aid', $article_id)
                ->count() > 0;
        }

        return json([
            'code' => 1,
            'data' => $interactions,
        ]);
    }

    /**
     * 获取热门互动文章
     */
    public function getHotInteractions()
    {
        $type  = Request::param('type', 'like');
        $limit = Request::param('limit', 10);

        $field = $type == 'like' ? 'like_count' : 'favorite_count';

        $articles = ArticleModel::with(['user', 'category'])
            ->where('status', 1)
            ->order($field, 'desc')
            ->limit($limit)
            ->select();

        return json([
            'code' => 1,
            'data' => $articles,
        ]);
    }
}