<?php
namespace app\controller;

use think\facade\Db;

class Article
{
    public function plus()
    {
        $post = $GLOBALS['data']['data'];
        $userid = $GLOBALS['data']['userid'];
        if(empty($userid)){
            return show("请登录后再发布！",NEED_LOGIN);
        }
        if(empty($post['content'])){
            return show("内容不能为空！");
        }

        if(empty($post['imgs'])){
            return show("图片不能为空！");
        }

        Db::name("app_article")->insert([
            "text"=>$post['content'],
            "imgs"=>$post['imgs'],
            "userid"=>$userid,
            "createtime"=>time(),
            "click"=>0
        ]);
        Db::name("student")->inc("article_count",1)->where("id",$userid)->update();
        return show("发布成功！",SUCCESS_CODE,[]);
    }

    public function delete(){
        $userid = $GLOBALS['data']['userid'];
        if(empty($userid)){
            return show("请登录后操作！",NEED_LOGIN);
        }
        $article_id = $GLOBALS['data']['data']["article_id"];
        if(empty($article_id)){
            return show("请上输入动态ID");
        }

        $info = Db::name("app_article")->where("id",$article_id)->find();
        if(empty($info) || $info['userid']!=$userid){
            return show("找不到该动态信息！");
        }
        Db::name("app_article")->where("id",$article_id)->delete();
        return show("删除成功!",SUCCESS_CODE,[]);
    }

    public function lists(){
        $userid = $GLOBALS['data']['userid'];
        if(empty($userid)){
            return show("请登录后操作！",NEED_LOGIN);
        }
        $lastIndex = empty($GLOBALS['data']['data']["lastindex"])?0:$GLOBALS['data']['data']["lastindex"];
        if($lastIndex == 0){
            $where = "userid={$userid} and id>0";
        }else{
            $where = "userid={$userid} and id<".$lastIndex;
        }
        $result["lastIndex"] = 0;
        $list = Db::name("app_article")->where($where)->order("id desc")->order('id desc')->limit(env("page_count"))->select()->toArray();
        foreach($list as $vo){
            $result['lastIndex'] = $vo['id'];
            $result["list"][] = $vo;
        }
        if(count($list)<env("PAGE_COUNT")){
            $result["lastIndex"] = 0;
        }
        return show(SUCCESS_MESSAGE,SUCCESS_CODE,$result);
    }

    public function detail(){
        if(empty($GLOBALS['data']['data']['article_id'])){
            return show("请上传动态ID！");
        }
        $article_id = $GLOBALS['data']['data']['article_id'];
        $info = Db::name('app_article')->where("id",$article_id)->find();
        if(empty($info)) return show("找不到该动态信息！");
        return show(SUCCESS_MESSAGE,SUCCESS_CODE,$info);
    }

    public function getlists(){
        $userid = $GLOBALS['data']['userid'];
        if(empty($userid)){
            return show("请登录后操作！");
        }
        if(empty($GLOBALS['data']['data']['student_userid'])){
            return show("请输入用户ID！");
        }
        $student_userid = $GLOBALS['data']['data']['student_userid'];

        $student = Db::name("student")->field("id")->where("id",$student_userid)->find();

        if(empty($student)) return show("找不到用户信息！");

        $lastIndex = empty($GLOBALS['data']['data']["lastindex"])?0:$GLOBALS['data']['data']["lastindex"];
        if($lastIndex == 0){
            $where = "userid={$student_userid} and id>0";
        }else{
            $where = "userid={$student_userid} and id<".$lastIndex;
        }
        $result["lastIndex"] = 0;
        $list = Db::name("app_article")->where($where)->order("id desc")->order('id desc')->limit(env("page_count"))->select()->toArray();
        foreach($list as $vo){
            $result['lastIndex'] = $vo['id'];
            $result["list"][] = $vo;
        }
        if(count($list)<env("PAGE_COUNT")){
            $result["lastIndex"] = 0;
        }
        return show(SUCCESS_MESSAGE,SUCCESS_CODE,$result);
    }
}