Advent of Code 2021 Day 2 Part 2

#https://adventofcode.com/2021/day/2

# WebRequest to gather your puzzle input
$cookie_id = "53616xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
$session = New-Object Microsoft.PowerShell.Commands.WebRequestSession
$session.Cookies.Add((New-Object System.Net.Cookie("session", $cookie_id, "/", ".adventofcode.com")))
$moves = Invoke-WebRequest -UseBasicParsing -Uri "https://adventofcode.com/2021/day/2/input" ` -WebSession $session
$moves = $moves.Content

[int]$horizontal = [int]$depth = [int]$aim =  0

# Format the input content as an array by splitting it line by line
$moves = $moves -split("\n")

$moves  | % {

    # Split each row in 2 parts : command and value
    $move = $_.split(" ")

    # Depending on the command, increase or decrease required values
    switch($move[0]){

        "down"{
            $aim += [int]$move[1]
        }
        "up"{
            $aim -= [int]$move[1]
        }
        "forward"{
            $horizontal += [int]$move[1]
            if($aim -ne 0){
                $depth +=  [int]$move[1]*[int]$aim
            }
        }
    }
}
$final_result = $depth*$horizontal