import {default as fetch, cookieJar, Cookie} from "flumm-fetch-cookies";
import cfg from "../../../cfg/config.json";

const apis = {
  reverse: "https://pr0gramm.com/api/items/get?flags=15&tags=!p:",
  list: "https://pr0gramm.com/api/items/get?flags=15&id=",
  item: "https://pr0gramm.com/api/items/info?flags=15&itemId="
};

const color = new Proxy({}, {
  get: (_, prop) => s => `[color=${prop}]${s}[/color]`
});

const flags = {
  1: color.green("sfw"),
  2: color.magenta("nsfw"),
  4: color.red("nsfl"),
  8: color.blue("nsfp")
};

const regex = {
  normal: /pr0gramm\.com\/.+\/(\d+)(?:\s|$)/i,
  direct: /(full|img|vid)\.pr0gramm\.com\/((?:\d+){4}\/(?:\d+){2}(?:\/(?:\d+){2})?\/(?:\w{1,20})\.(gif|png|jpg|mp4))/i
};

cookieJar.addCookie(Cookie.fromObject(cfg.kekse.me));
cookieJar.addCookie(Cookie.fromObject(cfg.kekse.pp));

export default async bot => {

  return [{
    name: "pr0gag",
    call: /pr0gramm\.com\/.+\/.+/i,
    set: "uwe",
    f: async e => {
      let matches, id, link, list;
      if(matches = e.message.match(regex.direct)) {
        const path = matches[1] === "full" && matches[3] === "png"
                    ? matches[2].slice(0, -3) + "jpg"
                    : matches[2];
        const response = await (await fetch(apis.reverse + path)).json();
        if(response.error || !response.items.length)
          throw "reverse lookup error";
        list = response.items[0];
        id = list.id;
        link = "https://pr0gramm.com/" + (list.promoted ? "top" : "new") + "/" + id;
      }
      else if(matches = e.message.match(regex.normal)) {
        id = matches[1];
        link = "https://" + matches[0];
        list = (await (await fetch(apis.list + id)).json())
                .items
                .filter(item => item.id == id)[0];
      }
      else
        return;

      let info = await (await fetch(apis.item + id)).json();

      if(!info || !Array.isArray(info.tags) || !Array.isArray(info.comments))
        throw "item lookup error";

      const toptags = info.tags
        .sort((a, b) => b.confidence - a.confidence)
        .slice(0, 3)
        .map(tag => tag.tag)
        .join(", ");

      const voteRatio = list.up / (list.up + list.down);

      const voteRatioColors = [
        "red",
        "brown",
        "orange",
        "yellow",
        "green",
        "lightgreen",
      ];

      const voteRatioColor = voteRatioColors[~~Math.min(voteRatio * voteRatioColors.length, voteRatioColors.length - 1)];

      e.reply([
        link,
        `${list.up - list.down} (${color.green(list.up)} / ${color.red(list.down)} = ${color[voteRatioColor]((voteRatio * 100).toFixed(1))}${color.magenta("%")})`,
        "user: " + list.user,
        "comments: " + info.comments.length,
        `toptags: ${toptags} (${flags[list.flags]})`
      ].join(" - "));
    }
  }];
};