const request = require('request-promise-native');
const m3u8 = require('m3u8');
const ffmpeg = require('fluent-ffmpeg');
const fs = require('fs');

function parse_aa(file){
        const parser = m3u8.createStream();
        const ffile = fs.createReadStream(file);
        ffile.pipe(parser);
        return new Promise((resolve, reject)=>{
                parser.on('error',reject);
                parser.on('m3u',resolve);
        });
}

parse_aa('sample_0').then(items=>{
        return new Promise((resolve, reject)=>{
                items.forEach((item,index)=>{
                        ffmpeg.ffprobe(item.uri, (err, metadata)=>{
                                if(err){
                                        items.splice(index,1);
                                }
                        });
                        resolve(items);
                });
        });
}).then(a=>console.log(a));


// error : items.forEach < is not a function ?