// Generates a random chess game

use owlchess::{
    chain::{GameStatusPolicy, NumberPolicy},
    movegen::legal,
    moves::Style,
    types::OutcomeFilter,
    MoveChain,
};
use rand::{self, seq::SliceRandom};

fn main() {
    let mut chain = MoveChain::new_initial();
    let mut rng = rand::thread_rng();

    while !chain.is_finished() {
        // Generate all the legal moves
        let moves = legal::gen_all(chain.last());

        // Pick random move and push it into chain
        let mv = moves
            .choose(&mut rng)
            .expect("no legal moves in this position");
        chain
            .push(*mv)
            .expect("cannot make move generated by legal::gen_all()");

        // Verify game outcome
        chain.set_auto_outcome(OutcomeFilter::Strict);
    }

    // Print the results
    println!(
        "{} {{{}}}",
        chain.styled(NumberPolicy::FromBoard, Style::San, GameStatusPolicy::Show),
        chain.outcome().unwrap(),
    );
}