'''Day 1 of 2015 AOC'''

def process_input_string(input_string: str) -> int:
    '''Take in an input string and give back the floor number based on the instructions.

    Keyword Args:
    input_string (str) - String of encoded instructions

    Return:
    int - Floor number
    '''
    curr_floor = 0

    for char in input_string:
        if char == '(':
            curr_floor += 1
        elif char == ')':
            curr_floor -= 1

    return curr_floor


def find_the_basement(input_string: str) -> int:
    '''Take in an input string of instructions and give back the position of the instruction entering the basement, or hitting floor "-1".

    Keyword Args:
    input_string (str) - String of encoded instructions

    Return:
    int - Position of instruction in the string
    '''
    curr_floor = 0

    for index, char in enumerate(input_string):
        if char == '(':
            curr_floor += 1
        elif char == ')':
            curr_floor -= 1

        if curr_floor == -1:
            # Add one to give the 1s based position instead of the 0s based index
            return index + 1


def main():
    '''Entrypoint'''
    with open('input.txt', encoding='utf-8') as fh:
        input_string = fh.readline()
        output = process_input_string(input_string)

        print(f'Part 1: {output}')

        output = find_the_basement(input_string)

        print(f'Part 2: {output}')


if __name__ == "__main__":
    main()