use super::{card::Card, hand::Hand, card_index::CardIndex as CI, card_suit::CardSuit as CS};

pub fn new_full_deck() -> Hand {
    let mut hand = Hand::new();

    for suit in [CS::Clubs, CS::Diamonds, CS::Hearts, CS::Spades] {
        for index in [
            CI::A,
            CI::J,
            CI::K,
            CI::Q,
            CI::N10,
            CI::N9,
            CI::N8,
            CI::N7,
            CI::N6,
            CI::N5,
            CI::N4,
            CI::N3,
            CI::N2,
        ] {
            hand.add_card(Card { suit, index });
        }
    }

    hand
}

pub fn new_blackjack_shoe(decks: u32) -> Hand {
    let mut hand = Hand::new();

    for _ in 0..decks {
        hand.merge(&mut new_full_deck());
    }

    hand.shuffle();

    hand
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn full_deck_count() {
        assert_eq!(new_full_deck().count(), 52);
    }

    #[test]
    fn shoe_count() {
        assert_eq!(new_blackjack_shoe(6).count(), 6 * 52);
    }
}