import os
import random
from mastodon import Mastodon
import sqlite3


def get_food():
    foods = ["no spoilers"]
    food = foods[random.randint(0, len(foods) - 1)]
    return food


def get_cur_and_ensure_table(db_con):
    cur = db_con.cursor()
    cur.execute("CREATE TABLE IF NOT EXISTS used(used TEXT)")


def record_usage(cursor, my_food):
    cursor.execute("INSERT INTO USED(used) values (?)", (my_food,))


def is_already_used(cursor, my_food):
    cursor.execute("SELECT used FROM Used where used = ?", (my_food,))
    result = cursor.fetchone()
    return result is not None


def get_unique_food(db_con):
    cursor = db_con.cursor()
    max_attempts = 3
    current_attempt = 1
    while True and current_attempt < max_attempts:
        current_attempt = current_attempt + 1
        my_food = get_food()
        used = is_already_used(cursor, my_food)
        if not used:
            record_usage(cursor, my_food)
            return my_food


def get_masto_client_and_login():
    client_id = os.environ["LIONSEAT_CLIENTID"]
    client_secret = os.environ["LIONSEAT_CLIENTSECRET"]
    mastodon_instance_url = os.environ["LIONSEAT_MASTO_URL"]
    mastodon = Mastodon(
        client_id=client_id,
        client_secret=client_secret,
        api_base_url=mastodon_instance_url,
    )
    mastodon.log_in(
        username=os.environ["LIONSEAT_USER"],
        password=os.environ["LIONSEAT_PASS"],
        to_file="liomseatbot.secret",
        scopes=["read", "write"],
    )
    return mastodon


with sqlite3.connect("lionseat.db") as db_con:
    get_cur_and_ensure_table(db_con)
    food = get_unique_food(db_con)
    if food is not None:
        status = f"Lions will eat {food}"
        print(status)
        mastodon = get_masto_client_and_login()
        mastodon.status_post(status, visibility="public")