#!/usr/bin/env python3
"""
Pick some random numbers.
"""
import sys
import random
import string

from module import commands, example

@commands("rand")
@example(".rand 2", "random(0, 2) = 1")
@example(".rand -1 -1", "random(-1, -1) = -1")
@example(".rand", "random(0, 56) = 13")
@example(".rand 99 10", "random(10, 99) = 53")
@example(".rand 10 99", "random(10, 99) = 29")
def rand(bot, trigger):
	"""Replies with a random number between first and second argument."""
	arg1 = trigger.group(3)
	arg2 = trigger.group(4)

	try:
		if arg2 is not None:
			low = int(arg1)
			high = int(arg2)
		elif arg1 is not None:
			low = 0
			high = int(arg1)
		else:
			low = 0
			high = sys.maxsize
	except (ValueError, TypeError):
		return bot.reply("Arguments must be of integer type")

	if low > high:
		low, high = high, low

	number = random.randint(low, high)
	bot.reply(f"random({low}, {high}) = {number}")


@commands('letters')
@example('.letters', 'iloynlle')
@example('.letters 16', 'oaotordbwaauouxk')
def rand_letters(bot, trigger):
	"""
	usage: .letters [num_letters] [num_vowels]

	Generates a series of string of random letters.
	"""
	num_letters = int(trigger.group(3)) if trigger.group(3) else 8
	num_vowels = int(trigger.group(4)) if trigger.group(4) else 2

	msg = []
	for _ in range(num_letters):
		c = random.choice(string.ascii_lowercase + "aioue" * num_vowels)
		msg.append(c)
	bot.msg(''.join(msg))