import cfg from "../../../config.json";
import sql from "../sql.mjs";
import lib from "../lib.mjs";
import { getLevel } from "../admin.mjs";

import fs from "fs";
import { exec as _exec } from "child_process";
import { promisify } from "util";
const exec = promisify(_exec);

const regex = /https?:\/\/[\w\S(\.|:|/)]+/gi;

export default async bot => {

  return [{
    name: "parser",
    call: regex,
    active: true,
    f: e => {
      const links = e.message.match(regex)?.filter(link => !link.includes("f0ck.me")) || [];

      if(e.photo)
        links.push(e.photo);

      if(links.length === 0)
        return false;
      
      if(e.message.match(/(!|-)ignore/))
        return false;

      if(!e.channel.includes("f0ck") && !e.message.match(/(!|-)f0ck/i))
        return false;

      console.log(`parsing ${links.length} link${links.length > 1 ? "s" : ""}...`);

      links.forEach(async link => {
        // check repost (link)
        const q_repost = await sql.query("select id from items where src = ?", [ link ]);
        if(q_repost.length > 0)
          return e.reply(`repost motherf0cker (link): ${cfg.main.url}/${q_repost[0].id}`);

        // generate uuid
        const uuid = (await sql.query("select left(uuid(), 8) as uuid"))[0].uuid;

        const maxfilesize = (getLevel(e.user).level > 50 ? cfg.main.maxfilesize * 2.5 : cfg.main.maxfilesize) / 1024;

        let meta;
        // read metadata
        try {
          meta = JSON.parse((await exec(`youtube-dl -f "bestvideo[ext=mp4,filesize<${maxfilesize}k][width<2000][height<=1200]+bestaudio[ext=m4a,filesize<${maxfilesize}k]/bestvideo[width<2000][height<=1200]+bestaudio/best[width<2000][height<=1200]/best"  --skip-download --dump-json "${link}"`)).stdout);
          //meta = JSON.parse((await exec(`youtube-dl -f "bestvideo[ext=mp4,filesize<${maxfilesize}k]+bestaudio/best" --skip-download --dump-json "${link}"`)).stdout);
        }
        catch(err) {
          //e.reply("(╯° °）╯︵ ┻━┻)");
          console.error(err);
          return;
        }

        let filename = `${uuid}.${meta.ext}`;

        //e.reply(`downloading ${uuid}...`);
        e.reply(`[charging the f0cker] downloading: ${uuid}`);

        // download data
        const start = new Date();
        let source;
        if(meta.ext === "mp4") {
          //source = (await exec(`youtube-dl "${link}" --max-filesize ${maxfilesize}k -f "bestvideo[ext=mp4,filesize<${maxfilesize}k]+bestaudio/best" --merge-output-format mp4 -o ./tmp/${filename}`)).stdout.trim();
          source = (await exec(`youtube-dl "${link}" --max-filesize ${maxfilesize}k -f "bestvideo[ext=mp4,filesize<${maxfilesize}k][width<2000][height<=1200]+bestaudio[ext=m4a,filesize<${maxfilesize}k]/bestvideo[width<2000][height<=1200]+bestaudio/best[width<2000][height<=1200]/best" --merge-output-format mp4 -o ./tmp/${filename}`)).stdout.trim();
          console.log("mp4 lol");
        }
        else {
          //source = (await exec(`youtube-dl "${link}" --max-filesize ${maxfilesize}k -f "bestvideo[filesize<${maxfilesize}k][width<2000][height<=1200]+bestaudio[ext=${meta.ext},filesize<${maxfilesize}k]/bestvideo[width<2000][height<=1200]+bestaudio/best[ext=${meta.ext},width<2000][height<=1200]/best" --merge-output-format ${meta.ext} -o ./tmp/${filename}`)).stdout.trim();
          source = (await exec(`youtube-dl "${link}" --max-filesize ${maxfilesize}k -f "bestvideo[filesize<${maxfilesize}k][width<2000][height<=1200][ext=${meta.ext}]+bestaudio[filesize<${maxfilesize}k][ext=${meta.ext}]/best" -o ./tmp/${filename}`)).stdout.trim();
          //source = (await exec(`youtube-dl "${link}" --max-filesize ${maxfilesize}k -f "bestvideo[ext=mp4,filesize<${maxfilesize}k][width<2000][height<=1200]+bestaudio[ext=m4a,filesize<${maxfilesize}k]/bestvideo[width<2000][height<=1200]+bestaudio/best[width<2000][height<=1200]/best" -o ./tmp/${filename}`)).stdout.trim();
          //source = (await exec(`youtube-dl "${link}" --max-filesize ${maxfilesize}k -f "bestvideo[ext=mp4,filesize<${maxfilesize}k]+bestaudio/best" -o ./tmp/${filename}`)).stdout.trim();
          console.log("alles andere lol");
        }
        console.log(source);

        if(source.match(/larger than/))
          return e.reply("too large lol");
        const end = ~~((new Date() - start) / 1e3);
        
        // generate checksum
        const checksum = (await exec(`sha256sum ./tmp/${filename}`)).stdout.trim().split(" ")[0];
        const size = fs.statSync(`./tmp/${filename}`).size;

        // mime check
        const mime = (await exec(`file --mime-type -b ./tmp/${filename}`)).stdout.trim();
        if(!cfg.allowed.includes(mime))
          return e.reply(`lol, go f0ck yourself (${mime})`);
        
        if(!cfg.ext.includes(meta.ext)) {
          let tmpext = "";
          if(mime === "image/png")
            tmpext = "png";
          else if(mime === "video/webm")
            tmpext = "webm";
          else if(mime === "image/gif")
            tmpext = "gif";
          else if(mime === "image/jpeg")
            tmpext = "jpg";
          else if(mime === "video/mp4" || mime === "video/quicktime")
            tmpext = "mp4";
          else if(mime === "audio/mpeg")
            tmpext = "mp3";
          else if(mime === "audio/ogg")
            tmpext = "ogg";
          else if(mime === "audio/flac" || mime === "audio/x-flac")
            tmpext = "flac";
          
          fs.renameSync(`./tmp/${filename}`, `./tmp/${uuid}.${tmpext}`);
          filename = `${uuid}.${tmpext}`;
        }

        // check repost (checksum)
        const q_repostc = await sql.query("select id from items where checksum = ?", [ checksum ]);
        if(q_repostc.length > 0)
          return e.reply(`repost motherf0cker (checksum): ${cfg.main.url}/${q_repostc[0].id}`);

        await fs.promises.copyFile(`./tmp/${filename}`, `./public/b/${filename}`);
        await fs.promises.unlink(`./tmp/${filename}`).catch(_=>{});

        const insertq = await sql.query(
          "insert into items (src, dest, mime, size, checksum, username, userchannel, usernetwork, stamp, active) values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
          [ e.photo ? "" : link, filename, mime, size, checksum, e.user.nick || e.user.username, e.channel, e.network, ~~(new Date() / 1000), 1 ]
        );

        // generate thumbnail
        try {
          let thumb_orig = (await exec(`youtube-dl -f "bestvideo[ext=mp4]+bestaudio[ext=m4a]/best[ext=mp4]/best" --get-thumbnail "${link}"`)).stdout.trim();
          if(!thumb_orig.startsWith("http")) {
            if(mime.startsWith("image") && mime !== "image/gif")
              thumb_orig = `./public/b/${filename}`;
            else if(!mime.startsWith("audio")) {
              await exec(`ffmpegthumbnailer -i./public/b/${filename} -s1024 -o./tmp/${insertq.insertId}`);
              thumb_orig = `./tmp/${insertq.insertId}`;
            }
            else if(mime.startsWith("audio")) {
              await exec(`ffmpeg -i ./public/b/${filename} -update 1 -map 0:v -map 0:1 -c copy ./tmp/${insertq.insertId}.png`)
              await exec(`cp ./tmp/${insertq.insertId}.png ./public/ca/${insertq.insertId}.png`)
              thumb_orig = `./tmp/${insertq.insertId}.png`;
            }
          }
          await exec(`convert "${thumb_orig}" -resize "200x200^" -gravity center -crop 128x128+0+0 +repage ./public/t/${insertq.insertId}.png`);
          await fs.promises.unlink(`./tmp/${insertq.insertId}`).catch(_=>{});
        } catch(err) {
          e.reply("\x033>no thumb lol");
          console.error(err);
        }

        let speed = lib.calcSpeed(size, end);
        speed = !Number.isFinite(speed) ? "yes" : `${speed.toFixed(2)} Mbit/s`;

        e.reply([
          //`title: ${meta.fulltitle}`,
          `link: ${cfg.main.url}/${insertq.insertId} | size: ${lib.formatSize(size)} | speed: ${speed}`
          //`link: ${cfg.main.url}/${insertq.insertId}`
        ]);

      });
    }
  }];
};