<?php
namespace app\wechat\controller;

use think\Controller;
use think\Db;
use app\common\QrCodeImage;

/**
 * @title 文章接口
 * @description 文章接口
 * @group 文章接口
 */
class Article extends Controller
{

    public function __construct(\think\Request $request = null) {

        parent::__construct($request);
    }

    /**
     * @title 获取文章信息
     * @param article_id 文章ID
     */
    public function getArticle(){

        //获取参数
        $aParam = $this->request->post();
        $iArticleId = empty($aParam['article_id']) ? '' :$aParam['article_id'] ;
        if(empty($iArticleId)){
            return json_encode(array('status' => 2,'msg' => 'Please select an article'));
        }

        //查询文章
        $aWhere = ['article_id' => $iArticleId,'state' => 0];
        $aArticle = Db::name('article')->field('article_id,title,abstract,journal_id,journal_stage_id,abbr,npp,doi,icon as article_icon,related')->where($aWhere)->find();
        if(empty($aArticle)){
            return json_encode(array('status' => 3,'msg' => 'Article not found' ));
        }
        
        //文章内容
        $aMain = $this->_main($iArticleId);

        //查询文章所属期刊信息
        $aJournal = $this->_journal($aArticle['journal_id']);

        //获取文章所属分期信息
        $aJournalStage = $this->_journalStage($aArticle['journal_stage_id']);

        //获取通讯作者
        $aAuthor = $this->_author($iArticleId);


        return json_encode(array('status' => 1,'msg' => 'Successfully obtained AI generated article content','data' => ['article' => $aArticle,'journal' => $aJournal,'journal_stage' => $aJournalStage,'author' => $aAuthor,'main' => $aMain]));
    }


    /**
     * 获取文章的内容
     * @param article_id 文章ID
     */
    private function _main($iArticleId = 0){
        $aWhere['article_id'] = $iArticleId;
        $aWhere['content'] =['<>',''];
        $aWhere['state'] = 0;
        $aMain = Db::name('article_main')->where($aWhere)->column('content');
        return $aMain;
    }

    /**
     * 获取文章的所属期刊信息
     * @param article_id 文章ID
     */
    private function _journal($iJournalId = 0){
        $aWhere = ['journal_id' => $iJournalId,'state' => 0];
        $aJournal = Db::name('journal')->field('journal_id,title as journal_title,icon as journal_icon,usx as journal_usx,abstract as journal_content,jabbr,email as journal_email,issn')->where($aWhere)->find();
        return $aJournal;
    }

    /**
     * 获取文章的所属期刊信息
     * @param article_id 文章ID
     */
    private function _journalStage($iJournalStageId = 0){
        $aWhere = ['journal_stage_id' => $iJournalStageId,'state' => 0];
        $aJournalStage = Db::name('journal_stage')->field('stage_year,stage_vol,stage_no,stage_pagename,stage_page,stage_name,stage_icon')->where($aWhere)->find();
        return $aJournalStage;
    }

    /**
     * 获取文章的通讯作者
     * @param article_id 文章ID
     */
    private function _author($iArticleId = 0){

        $aWhere = ['article_id' => $iArticleId,'state' => 0,'is_report' => 1];
        $aAuthor = Db::name('article_author')->field('article_author_id,first_name,last_name,author_country,email,article_id')->where($aWhere)->select();
        if(empty($aAuthor)){
            return [];
        }

        //查询文章作者机构
        $aAuthorId = array_column($aAuthor, 'article_author_id');
        $aWhere = ['article_id' => $iArticleId,'state' => 0,'article_author_id' => ['in',$aAuthorId]];
        $aAuthorOrgan = Db::name('article_author_to_organ')->where($aWhere)->column('article_author_id,article_organ_id');

        //查询组织机构名称
        if(!empty($aAuthorOrgan)){
            $aAuthorOrganId = array_values($aAuthorOrgan);
            $aWhere = ['article_id' => $iArticleId,'state' => 0,'article_organ_id' => ['in',$aAuthorOrganId]];
            $aOrgan = Db::name('article_organ')->where($aWhere)->column('article_organ_id,organ_name');
        }

        //数据整合
        $aAuthorInfo = [];
        foreach($aAuthor as $key => $value){
            //作者姓名
            $sAuthorName = $value['last_name'].$value['first_name'];
            
            //所属机构ID
            $iOrganId = empty($aAuthorOrgan[$value['article_author_id']]) ? 0 : $aAuthorOrgan[$value['article_author_id']];
            if(empty($iOrganId)){
                $aAuthorInfo[] = ['author_name' => $sAuthorName,'email' => $value['email'],'article_id' => $value['article_id']];
                continue;
            }
            //获取所属机构名称
            $sOrganName = empty($aOrgan[$iOrganId]) ? '' : $aOrgan[$iOrganId];
            if(empty($sOrganName)){
                $aAuthorInfo[] = ['author_name' => $sAuthorName,'email' => $value['email'],'article_id' => $value['article_id']];
                continue;
            }
            $sOrganName = empty($sOrganName) ? '' : $sOrganName;
            $aAuthorInfo[] = ['company' => $sOrganName,'author_name' => $sAuthorName,'email' => $value['email'],'article_id' => $value['article_id']];
        }
        return $aAuthorInfo;
    }

}