$ whoami

use std::collections::{BTreeMap, VecDeque};
use std::fs::read_to_string;

fn main() {
    let mut crates = BTreeMap::new();
    read_to_string("./data.txt")
        .expect("File does not exist!")
        .lines()
        .for_each(|line| {
            if !line.trim().is_empty() {
                match &line.trim()[0..1] {
                    "[" => line
                        .chars()
                        .collect::<Vec<char>>()
                        .chunks(4)
                        .map(|c| c.iter().collect::<String>())
                        .enumerate()
                        .filter_map(|(i, s)| match s.chars().nth(1).unwrap() {
                            ' ' => None,
                            _ => Some(((i + 1).to_string(), s[1..2].to_owned())),
                        })
                        .for_each(|(i, s)| crates.entry(i).or_insert(VecDeque::new()).push_back(s)),
                    "m" => &lbrace;
                        for i in 0..line
                            .split(" ")
                            .map(|e| e.to_string())
                            .collect::<Vec<String>>()[1]
                            .parse().unwrap()
                         {
                            let val = crates
                                .get_mut(&line.split(" ").map(|e| e.to_string()).collect::<Vec<String>>()[3])
                                .unwrap().pop_front().unwrap();
                            crates
                                .get_mut(&line.split(" ").map(|e| e.to_string()).collect::<Vec<String>>()[5])
                                .unwrap().insert(i, val);
                        }
                    }
                    _ => (),
                }
            }
        });

    // Part 2
    // For Part 1, change Line 39 to push_front without the index i
    crates
        .iter_mut()
        .for_each(|(_, v)| print!("&#123;&#125;", v.pop_front().unwrap()));
}