const config = require("../etc/config.json");
const helper = require("../src/helper");
const redis_help = require('../src/use_redis');
const mysql = require('mysql2/promise');
const PullDataService = require('../src/PullDataService');
var pullDataService = new PullDataService(redis_help)
const dbConfig = config.isDebug?config.debug_mysql:config.release_mysql
const CMD = {}

async function processTask(){
    let connection  = null
    try{
        const today = helper.getLocalDate();
        let date = today.replace(/-/g, '');
        let table_name = `pull_data_${date}`;
        // 创建数据库连接
        connection = await mysql.createConnection({
            ...dbConfig,
            multipleStatements: true
        });



        // 检查表是否存在
        const [tableCheck] = await connection.execute(
            `SELECT TABLE_NAME 
            FROM information_schema.tables 
            WHERE TABLE_SCHEMA = ? AND TABLE_NAME = ?`,
            [dbConfig.database, table_name]
        );

        if (tableCheck.length === 0) {
            // 表不存在
            console.error(`表 ${table_name} 不存在`);
            throw new Error(`表 ${table_name} 不存在`);
        } else {
            // 表存在，执行查询
            const [rows] = await connection.execute(
                `SELECT * FROM ${table_name} WHERE status = 0 LIMIT 500`
            );
    
            if(rows.length<=0){
                throw "没有数据处理！"
            }
    
            let materialId_list = []
    
            rows.forEach((row, index) => {
                materialId_list.push(row.materialId)
            });
    
            let response =  await pullDataService.get_detail(materialId_list)
            console.log("response:",  response.data.list.length)
            if(response.success){
                for (let index = 0; index < parseInt(response.data.list.length); index++) {
                    const element = response.data.list[index];
                    console.log("element:",element)
                    if(element.videoId){
                        let landingUrl = element.landingUrl == undefined ?"":decodeURIComponent(element.landingUrl)
                        await connection.execute(
                            `UPDATE ${table_name} 
                             SET videoId = ?,
                             status = 1 ,
                             landingUrl = ? ,
                             publishTime = ?
                             WHERE uniqueId = ?`,
                            [element.videoId,landingUrl,new Date(element.publishTime),element.uniqueId]
                        );
                    }
            
                }
            }
        }

 
    }catch(e){
        console.error("processTask error:",e)
    } finally{
        global.setTimeout(processTask, 1000);
        if(connection!=null){
            await connection.end();
        }
    }

}

CMD.init = async function(){
    redis_help.connect((results)=>{
        if(results){
            processTask();
        }
    })

}

CMD.init()