<?php

namespace app\index\controller;

use app\model\Category;
use app\model\Post;
use app\model\PostCategory;
use think\facade\Cache;
use think\facade\Session;
use think\facade\View;
use think\Request;

class Index extends Common
{
    /**
     * 显示资源列表
     *
     * @return \think\Response
     */
    public function index()
    {

        $page_cache_key = md5($this->request->url());

        $content = Cache::get($page_cache_key);

        if (!env('app_debug') && !empty($content)) {
            return $content;
        }

        //
        $sub_category = [];
        $current_category = [];

        $category_id = $this->request->param('category_id');

        if (!empty($category_id)) {
            $sub_category = Category::where('pid', $category_id)->where('type', 3)->order('sort asc')->select();
            $current_category = Category::find($category_id);
            if (empty($this->request->param('sub_category_id'))) {
                $categorys = [$category_id];

                $categorys = array_merge($categorys, array_column((array)Category::getListLevel($category_id), 3));

                $categorys_where = PostCategory::whereIn('category_id', $categorys);

                $model_post = Post::hasWhere('categorys', $categorys_where)->where('status', 1)->order('id desc');
            } else {
                $model_post = Post::hasWhere('categorys', ['category_id' => $this->request->param('sub_category_id')])->where('status', 1)->order('id desc');
            }
        } else {

            $model_post = Post::where('status', 1)->order('id desc');
        }

        $model_post->where('type', 3);

        $keywords = $this->request->param('keywords');

        if (!empty($keywords)) {
            $model_post->whereLike('title|desc', "%$keywords%");
        }


        $list_post = $model_post->paginate([
            'url' => 'Index/index',
            'query' => $this->request->get(),
            'list_rows' => 10
        ]);

        View::assign('current_category', $current_category);
        View::assign('sub_category', $sub_category);

        View::assign('list_post', $list_post);

        $content = View::fetch();

        Cache::tag('page_cache')->set($page_cache_key, $content);

        return $content;
    }


    public function logout()
    {
        Session::clear();

        $back_url = $this->request->param('back_url', '/');
        return $this->success('退出成功', $back_url);
    }

    /**
     * 显示创建资源表单页.
     *
     * @return \think\Response
     */
    public function create()
    {
        //
    }

    /**
     * 保存新建的资源
     *
     * @param  \think\Request  $request
     * @return \think\Response
     */
    public function save(Request $request)
    {
        //
    }

    /**
     * 显示指定的资源
     *
     * @param  int  $id
     * @return \think\Response
     */
    public function read($id)
    {
        //
    }

    /**
     * 显示编辑资源表单页.
     *
     * @param  int  $id
     * @return \think\Response
     */
    public function edit($id)
    {
        //
    }

    /**
     * 保存更新的资源
     *
     * @param  \think\Request  $request
     * @param  int  $id
     * @return \think\Response
     */
    public function update(Request $request, $id)
    {
        //
    }

    /**
     * 删除指定资源
     *
     * @param  int  $id
     * @return \think\Response
     */
    public function delete($id)
    {
        //
    }
}