day1.rs

use crate::common::{ get_input };

pub async fn part1() -> i32 {	
	let input = get_input("https://adventofcode.com/2022/day/1/input").await
		.split("\n")
		.collect::<Vec<&str>>().iter()
		.map(|v| v.parse::<i32>().or::<i32>(Ok(0)).unwrap())
		.collect::<Vec<i32>>();

	let grouped_input = {
		input.iter()
			.fold(Vec::new(), |mut acc, &v| {
				if v == 0 || acc.is_empty() {
					acc.push(Vec::new())
				}
				acc.last_mut().unwrap().push(v);

				acc
			})
	};

	let grouped_sum = grouped_input.iter()
		.map(|group| group.iter().sum::<i32>())
		.collect::<Vec<i32>>();

	let sorted_sum = {
		let mut sorted_sum = grouped_sum.clone();
		sorted_sum.sort();

		sorted_sum.into_iter().rev().collect::<Vec<i32>>()
	};
	
	sorted_sum[0]
}

pub async fn part2() -> i32 {	
	let input = get_input("https://adventofcode.com/2022/day/1/input").await
		.split("\n")
		.collect::<Vec<&str>>().iter()
		.map(|v| v.parse::<i32>().or::<i32>(Ok(0)).unwrap())
		.collect::<Vec<i32>>();

	let grouped_input = {
		input.iter()
			.fold(Vec::new(), |mut acc, &v| {
				if v == 0 || acc.is_empty() {
					acc.push(Vec::new())
				}
				acc.last_mut().unwrap().push(v);

				acc
			})
	};

	let grouped_sum = grouped_input.iter()
		.map(|group| group.iter().sum::<i32>())
		.collect::<Vec<i32>>();

	let sorted_sum = {
		let mut sorted_sum = grouped_sum.clone();
		sorted_sum.sort();

		sorted_sum.into_iter().rev().collect::<Vec<i32>>()
	};
	
	sorted_sum[0] + sorted_sum[1] + sorted_sum[2]
}