#!/usr/bin/env python3
import argparse
import re
from urllib.parse import urlencode, urlparse

from bs4 import BeautifulSoup
from dns import rdatatype, resolver
from requests import Session, adapters
from urllib3.util.connection import HAS_IPV6

BLACKLIST_WORDS = ["dvd", "iso"]


parser = argparse.ArgumentParser()
parser.add_argument("-u", "--uploader", action="append")
parser.add_argument("-y", "--year", type=int)
parser.add_argument("-s", "--size", type=int, default=10)
parser.add_argument("query")
args = parser.parse_args()


def parse_size(size):
    units = {"o": 1, "Ko": 10**3, "Mo": 10**6, "Go": 10**9, "To": 10**12}
    match = re.search("([0-9.]+)([^0-9]+)", size)
    number = match.group(1).strip()
    unit = match.group(2).strip()
    return int(float(number) * units[unit])


DNS_RESOLVER = resolver.Resolver()
DNS_RESOLVER.cache = resolver.LRUCache()  # type: ignore


class DNSAdapter(adapters.HTTPAdapter):
    def __init__(self, nameservers):
        self.nameservers = nameservers
        super().__init__()

    def resolve(self, host, nameservers):
        DNS_RESOLVER.nameservers = nameservers

        if HAS_IPV6:
            try:
                answers_v6 = DNS_RESOLVER.query(host, rdatatype.AAAA)
                for rdata_v6 in answers_v6:
                    return f"[{str(rdata_v6)}]"
            except resolver.NoAnswer:
                pass

        answers_v4 = DNS_RESOLVER.query(host, rdatatype.A)
        for rdata_v4 in answers_v4:
            return str(rdata_v4)

    def send(self, request, **kwargs):
        connection_pool_kwargs = self.poolmanager.connection_pool_kw
        result = urlparse(request.url)
        resolved_ip = self.resolve(result.hostname, self.nameservers)
        request.url = request.url.replace(result.hostname, resolved_ip)
        request.headers["Host"] = result.hostname
        request.headers[
            "User-Agent"
        ] = "Googlebot/2.1 (+http://www.google.com/bot.html)"

        if result.scheme == "https":
            connection_pool_kwargs["server_hostname"] = result.hostname
            connection_pool_kwargs["assert_hostname"] = result.hostname

        return super().send(request, **kwargs)


session = Session()
session.mount("http://", DNSAdapter(["1.1.1.1"]))
session.mount("https://", DNSAdapter(["1.1.1.1"]))


def get_files(id):
    req = session.get(
        "https://www5.yggtorrent.fi/engine/get_files", params={"torrent": id}
    )
    files = req.json()
    html = BeautifulSoup(files["html"], "html.parser")
    trs = html.select("tr")
    return len(trs)


def search_ygg(query, multi):
    ygg_params = {
        "name": f"{query} {args.year}",
        "description": "",
        "file": "",
        "uploader": "",
        "category": "2145",
        "sub_category": "2183",
        "do": "search",
        "order": "asc",
        "sort": "publish_date",
    }

    if multi:
        ygg_params["option_langue"] = ["4"]

    req = session.get("https://www5.yggtorrent.fi/engine/search", params=ygg_params)
    html = BeautifulSoup(req.text, "html.parser")
    trs = html.select("table.table tr")

    if len(trs) > 1:
        for i, tr in enumerate(trs):
            if not i:
                continue

            tds = tr.find_all("td")
            size = tds[5].get_text()
            name = tds[1].get_text().lower().strip()

            if parse_size(size) > parse_size(f"{args.size}Go"):
                continue

            if any(word.lower() in name for word in BLACKLIST_WORDS):
                continue

            if args.uploader and not any(
                uploader.lower() in name for uploader in args.uploader
            ):
                continue

            link = tds[1].a["href"]
            id = link.split("/")[-1].split("-")[0]

            if get_files(id) > 1:
                continue

            print(f"{name} {args.year} {link}")
            exit(0)


query_string = {"query": args.query, "filters": "type:movie"}

if args.year:
    query_string["filters"] += f" AND year:{args.year}"

tvdb = session.post(
    "https://tvshowtime-dsn.algolia.net/1/indexes/TVDB/query",
    params={
        "x-algolia-application-id": "tvshowtime",
        "x-algolia-api-key": "c9d5ec1316cec12f093754c69dd879d3",
    },
    json={"params": urlencode(query_string)},
)

tvdata = tvdb.json()

if not tvdata["nbHits"] > 0:
    print("Can't find query on TheTVDB")
    exit(1)

eng = tvdata["hits"][0]["name"]

fra = (
    tvdata["hits"][0]["translations"]["fra"]
    if "fra" in tvdata["hits"][0]["translations"]
    else args.query
)


search_ygg(args.query, True)
search_ygg(fra, True)
search_ygg(eng, True)
search_ygg(args.query, False)
search_ygg(fra, False)
search_ygg(eng, False)

print("No results :(")