#!/usr/bin/python3
"""
Interface en ligne de commande pour interagir avec https://adventofcode.com/
Prérequis: fichier ~/.aoc-cookie contenant le cookie de connexion au site
Suggéré: alias aoc="$CHEMIN_VERS_CE_REPO/utils/cli.py"
"""
from optparse import OptionParser
from pathlib import Path
import datetime
import os

import requests
from bs4 import BeautifulSoup



home = str(Path.home())
with open(os.path.join(home, ".aoc-cookie"), "r", encoding='utf8') as file:
    cookie = file.read()

session = requests.Session()
session.cookies["session"] = cookie


def download_input(year, day):
    """Télécharge la donnée d'entrée correspondant à un certain jour"""
    request = session.get(f"https://adventofcode.com/{year}/day/{int(day)}/input")
    with open(f"{year}/inputs/day{str(day).zfill(2)}.txt", "w", encoding='utf8') as file:
        file.write(request.content.decode())
    print("ok")


def show_puzzle(year, day, part=None):
    """Affiche l'énoncé du jour demandé"""
    request = session.get(f"https://adventofcode.com/{year}/day/{int(day)}")
    soup = BeautifulSoup(request.content, "html.parser")
    day_desc = soup.find_all("article", {"class": "day-desc"})
    if part is None:
        for i in range(len(day_desc)):
            print(day_desc[i].text)
        return
    if part > len(day_desc) or part <= 0:
        print(f"Partie {part} non disponible")
        return
    print(day_desc[part - 1].text)


def submit(year, day, answer, level=1):
    """Soumet une réponse à validation"""
    request = session.post(
        f"https://adventofcode.com/{year}/day/{int(day)}/answer",
        data={"answer": answer, "level": level},
    )
    known_msgs = [
        "That's the right answer!",
        "That's not the right answer",
        "You gave an answer too recently",
        "You don't seem to be solving the right level.  Did you already complete it?",
    ]
    for msg in known_msgs:
        if msg in request.text:
            print(msg)
            return
    with open(f"answer-test-{year}-{int(day)}-{level}", "w", encoding='utf8') as file:
        file.write(request.content.decode())

    print("ok ?")


def __main__(options, args):
    """Fonction principale"""
    if len(args) == 0:
        print("Une action doit être spécifiée")
        return
    if args[0] == "download" or args[0] == "dl":
        download_input(options.year, options.day)
    elif args[0] == "show" or args[0] == "sh":
        if options.level == "":
            options.level = None
        else:
            options.level = int(options.level)
        show_puzzle(options.year, options.day, options.level)
    elif args[0] == "submit" or args[0] == "sb":
        if len(args) < 2:
            answer = input("Answer ?\n>> ")
        else:
            answer = args[1]
        if options.level == "":
            options.level = 1
        submit(options.year, options.day, answer, options.level)
    else:
        print(f"Invalid action {args[0]}")


today = datetime.datetime.now()

USAGE = "usage: %prog (download|dl|show|sh|submit|sb) [options]"
parser = OptionParser(usage=USAGE)
parser.add_option(
    "-y",
    "--year",
    dest="year",
    help="Année",
    action="store",
    default=today.year
)

parser.add_option(
    "-d",
    "--day",
    dest="day",
    help="Jour",
    action="store",
    default=today.day
)

parser.add_option(
    "-l",
    "--level",
    dest="level",
    help="Niveau de la difficulté",
    action="store",
    default=""
)


if __name__ == "__main__":
    (OPTIONS, args) = parser.parse_args()
    __main__(OPTIONS, args)