#![allow(dead_code)]
#![allow(unused_variables)]
#![allow(unused_mut)]
use std::fs::File;
use std::io::Read;

fn main() {
    let filename = "in/day01.ref";
    // let filename = "in/day01.pzl";

    let mut f = File::open(filename).expect("cannot open file");
    let mut content = String::new();
    f.read_to_string(&mut content).expect("cannot read file");
    let lines: Vec<_> = content.trim_end().split('\n').collect();
    // println!("{:?}", lines);

    let mut res1 = 0;
    for line in &lines {
        let nums: Vec<_> = line.chars().filter_map(|a| a.to_digit(10)).collect();
        if nums.len() == 1 {
            res1 += nums[0] * 10 + nums[0];
        } else {
            res1 += nums[0] * 10 + nums[nums.len() - 1];
        }
    }

    let mut res2 = 0;
    let digits = [
        "zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine",
    ];
    for line in &lines {
        let b: Vec<char> = line.chars().collect();
        let mut nums: Vec<u32> = Vec::new();
        for i in 0..b.len() {
            match b[i].to_digit(10) {
                Some(i) => nums.push(i),
                None => (),
            }
            for (j, digit) in digits.iter().enumerate() {
                let d: Vec<char> = digit.chars().collect();
                if d.iter().zip(b[i..].iter()).filter(|&(a, b)| a == b).count() == d.len() {
                    nums.push(j as u32);
                }
            }
        }
        if nums.len() == 0 {
            res2 += nums[0] * 10 + nums[0];
        } else {
            res2 += nums[0] * 10 + nums[nums.len() - 1];
        }
    }

    println!("res1: {}", res1);
    println!("res2: {}", res2);
}