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path: root/src/util.rs
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//! Uh-oh, a `util.rs` file. That can't be good.

use crate::database::{BoardRow, Placement};

pub fn tiebreak_shared_positions(board: Vec<BoardRow>) -> Vec<Placement> {
	let first = match board.first() {
		Some(r) => r.clone(),
		None => return vec![],
	};

	let mut last_score = first.points;
	let mut last_placed = 1;
	let mut placed = vec![Placement {
		row: first,
		placement: 1,
		placement_tie: 1,
		placement_first_of_tie: true,
	}];

	for (idx, row) in board.into_iter().enumerate().skip(1) {
		if row.points == last_score {
			placed.push(Placement {
				row,
				placement: idx + 1,
				placement_tie: last_placed,
				placement_first_of_tie: false,
			});
		} else {
			last_score = row.points;
			last_placed = idx + 1;

			placed.push(Placement {
				row,
				placement: idx + 1,
				placement_tie: last_placed,
				placement_first_of_tie: true,
			});
		}
	}

	placed
}