---cargo
---

static CONTENT: &'static str = include_str!("./inputs/06_1.txt");

#[derive(Debug, PartialEq, Clone)]
enum Operation {
    Add,
    Mul,
}

fn main() {
    let raw_grid: Vec<_> = CONTENT.lines().map(|l| l.trim()).filter(|l| !l.is_empty()).map(|l| {
        l.split(' ').map(|c| c.trim()).filter(|c| !c.is_empty()).collect::<Vec<_>>()
    }).collect();

    println!("Raw-Grid\n{:?}", raw_grid);

    let mut result = 0;

    let problem_count = raw_grid[0].len();
    for p_idx in 0..problem_count {
        let op = match raw_grid.last().map(|r| r[p_idx]) {
            Some("+") => Operation::Add,
            Some("*") => Operation::Mul,
            other => unreachable!("Unexpected Operation {:?}", other),
        };

        let elem_iter = raw_grid.iter().take(raw_grid.len()-1).map(|r| r[p_idx]).map(|v| v.parse::<usize>().unwrap());

        let value = match op {
            Operation::Add => elem_iter.sum::<usize>(),
            Operation::Mul => elem_iter.product::<usize>()
        };
        println!("V {}", value);

        result += value;
    }

    println!("Result {}", result);
}