const {spawn} = require('child_process');
const path = require('path');
const { cwd } = require('process');


function seep(time) {
    return new Promise((res) => {
        setTimeout(() => {
            res()
        }, time)
    })
}


/**
 * 获取视频截图                                             (目前不可用,不好使)
 * @param {String} filePath 文件绝对路径
 * @param {number} seconds 时间
 * @param {Promise<String>} save 保存绝对路径(含文件名)
 * @returns {Promise<String>} 文件位置(待定)
 */
function getVideoSpecifyTimeImage(filePath, seconds, save) {
    return new Promise((resolve) => {
        const lux = spawn("ffmpeg", ['-ss',`${formatSeconds(seconds)}`,'-i',filePath,'-vframes','1',save],{
            env:{
                path:path.join(cwd(),'./bin/')
            }
        })
        lux.stdout.on('data', (data) => {
            console.log(data)
        });
        lux.on('close', (code) => {
            console.log("结束")
            console.log(code.toString())
            resolve(save)
        });
        lux.stderr.on("data",(err)=>{
            console.log(String(err))
        })
        console.log(lux)
    })
}

/**
 * 获取视频文件信息
 * @param {String}filePath 文件绝对路径
 * @return {Promise<JSON>} videoInfo
 */
function getMediaInfo(filePath) {
    return new Promise((resolve) => {
        const lux = spawn("./bin/MediaInfoCLI/MediaInfo.exe", ['--output=JSON', filePath])
        lux.stdout.on('data', (data) => {
            resolve(JSON.parse(data))
        });
    })
}

/**
 * 制种
 * @param {String}filePath 文件绝对路径
 * @param {String}save 保存绝对路径(含文件名)
 * @return {Promise<String>} 日志
 */
function createTorrent(filePath, save) {
    return new Promise((resolve) => {
        const lux = spawn("./bin/Transmission/transmission-create", [filePath, '-p', '-t https://zmpt.cc/announce.php', '-o', save])
        let response = '';
        lux.stdout.on('data', (data) => {
            response += data
        });
        lux.stdout.on('close', (code) => {
            resolve(response)
        })
    })
}


function dow(info, callback) {
    const lux = spawn("yt-dlp", ['--cookies-from-browser', 'chrome', '-P', info.save, '-o', info.title + '.mp4', info.url],{
        env:{
            path:path.join(cwd(),'./bin/')
        }
    })
    lux.stdout.on('data', (data) => {
        console.log(String(data))
        callback(String(data), false)
    });
    lux.on('close', (code) => {
        console.log("结束")
        callback(code, true)
    });
}

/**
 * 秒到时分秒
 * @param value 秒
 * @return {string|number} 返回时间格式[00:00:00]
 */
function formatSeconds(value) {
    var secondTime = parseInt(value);// 秒
    var minuteTime = 0;// 分
    var hourTime = 0;// 小时
    if (secondTime > 60) {//如果秒数大于60，将秒数转换成整数
        //获取分钟，除以60取整数，得到整数分钟
        minuteTime = parseInt(secondTime / 60);
        //获取秒数，秒数取佘，得到整数秒数
        secondTime = parseInt(secondTime % 60);
        //如果分钟大于60，将分钟转换成小时
        if (minuteTime > 60) {
            //获取小时，获取分钟除以60，得到整数小时
            hourTime = parseInt(minuteTime / 60);
            //获取小时后取佘的分，获取分钟除以60取佘的分
            minuteTime = parseInt(minuteTime % 60);
        }
    }
    var result = "" + secondTime > 10 ? secondTime : '0' + secondTime;

    if (minuteTime > 0) {
        result = "" + minuteTime > 10 ? minuteTime : '0' + minuteTime + ":" + result;
    } else {
        result = "" + "00" + ":" + result;
    }
    if (hourTime > 0) {
        result = "" + hourTime > 10 ? hourTime : '0' + hourTime + ":" + result;
    } else {
        result = "" + "00" + ":" + result;
    }
    return result;
}

module.exports = {
    seep,
    dow,
    getVideoSpecifyTimeImage,
    getMediaInfo,
    createTorrent
}