import random
import string
from datetime import datetime, timedelta

def generate_curp():
    # Generate name components
    paternal = random.choice(string.ascii_uppercase) + random.choice('AEIOU')
    maternal = random.choice(string.ascii_uppercase)
    given = random.choice(string.ascii_uppercase)

    # Generate date of birth
    start_date = datetime(1940, 1, 1)
    end_date = datetime.now()
    random_date = start_date + timedelta(days=random.randint(0, (end_date - start_date).days))
    date_str = random_date.strftime("%y%m%d")

    # Generate gender
    gender = random.choice(['H', 'M'])

    # Generate state code
    states = ['AS', 'BC', 'BS', 'CC', 'CL', 'CM', 'CS', 'CH', 'DF', 'DG', 'GT', 'GR', 'HG', 'JC', 'MC', 'MN', 'MS', 'NT', 'NL', 'OC', 'PL', 'QT', 'QR', 'SP', 'SL', 'SR', 'TC', 'TS', 'TL', 'VZ', 'YN', 'ZS']
    state = random.choice(states)

    # Generate consonants
    consonants = ''.join(random.choices(string.ascii_uppercase.translate(str.maketrans('', '', 'AEIOU')), k=3))

    # Generate differentiation digit
    diff_digit = random.choice(string.digits) if int(date_str[:2]) < 20 else random.choice(string.ascii_uppercase)

    # Generate check digit (simplified for this example)
    check_digit = random.choice(string.digits)

    return f"{paternal}{maternal}{given}{date_str}{gender}{state}{consonants}{diff_digit}{check_digit}"

## Generate and print a random CURP
print(generate_curp())

function generateCURP() {
    const vowels = 'AEIOU';
    const consonants = 'BCDFGHJKLMNPQRSTVWXYZ';
    const states = ['AS', 'BC', 'BS', 'CC', 'CL', 'CM', 'CS', 'CH', 'DF', 'DG', 'GT', 'GR', 'HG', 'JC', 'MC', 'MN', 'MS', 'NT', 'NL', 'OC', 'PL', 'QT', 'QR', 'SP', 'SL', 'SR', 'TC', 'TS', 'TL', 'VZ', 'YN', 'ZS'];

    const randomLetter = () => String.fromCharCode(65 + Math.floor(Math.random() * 26));
    const randomVowel = () => vowels[Math.floor(Math.random() * vowels.length)];
    const randomConsonant = () => consonants[Math.floor(Math.random() * consonants.length)];

    const paternal = randomLetter() + randomVowel();
    const maternal = randomLetter();
    const given = randomLetter();

    const now = new Date();
    const start = new Date(1940, 0, 1);
    const randomDate = new Date(start.getTime() + Math.random() * (now.getTime() - start.getTime()));
    const dateStr = randomDate.toISOString().slice(2, 10).replace(/-/g, '');

    const gender = Math.random() < 0.5 ? 'H' : 'M';
    const state = states[Math.floor(Math.random() * states.length)];

    const internalConsonants = randomConsonant() + randomConsonant() + randomConsonant();

    const diffDigit = parseInt(dateStr.slice(0, 2)) < 20 ? 
        Math.floor(Math.random() * 10).toString() :
        String.fromCharCode(65 + Math.floor(Math.random() * 26));

    const checkDigit = Math.floor(Math.random() * 10).toString();

    return `${paternal}${maternal}${given}${dateStr}${gender}${state}${internalConsonants}${diffDigit}${checkDigit}`;
}

// Generate and log a random CURP
console.log(generateCURP());