from datetime import datetime
import humanize
import mysql.connector
import config as cfg
import os
import random
import constants as const

def formatRelativeTime(date_str):
    date_format = "%Y-%m-%d %H:%M:%S"
    past_date = datetime.strptime(date_str, date_format)

    now = datetime.now()
    time_difference = now - past_date

    return humanize.naturaltime(time_difference)

dbHost = os.environ.get("DB_HOST")
dbUser = os.environ.get("DB_USER")
dbPass = os.environ.get("DB_PASS")
dbName = os.environ.get("DB_NAME")

def createDatabase(cursor, dbName):
	try:
		cursor.execute("CREATE DATABASE {} DEFAULT CHARACTER SET 'utf8'".format(dbName))
		print(f"Database {dbName} created successfully")
	except mysql.connector.Error as error:
		print("Failed to create database:", error)
		exit(1)

def connectToDb():
	conn = mysql.connector.connect(
		host=dbHost,
		user=dbUser,
		password=dbPass,
		database=dbName,
		pool_name=f"{cfg.appName}-pool",
		pool_size=32,
		autocommit=True
	)
	return conn

def getQuestion(question_id: int):
    conn = connectToDb()
    cursor = conn.cursor(dictionary=True)
    cursor.execute("SELECT * FROM questions WHERE id=%s", (question_id,))
    question = cursor.fetchone()
    cursor.close()
    conn.close()
    return question

def getAnswer(question_id: int):
    conn = connectToDb()
    cursor = conn.cursor(dictionary=True)
    cursor.execute("SELECT * FROM answers WHERE question_id=%s", (question_id,))
    answer = cursor.fetchone()
    cursor.close()
    conn.close()
    return answer

def readPlainFile(file, split=False):
    if os.path.exists(file):
        with open(file, 'r', encoding="utf-8") as file:
            if split == False:
                return file.read()
            if split == True:
                return file.read().splitlines()
    else:
        return []

def getRandomWord():
    items = readPlainFile(const.antiSpamFile, split=True)
    return random.choice(items)