"""
Tests for Short Deck HandRanking and HandType classes
"""

import pytest
from poker.card import Card, ShortDeckRank, Suit  # 使用统一的Card类
from shortdeck.hand_ranking import ShortDeckHandRanking, ShortDeckHandType


class TestShortDeckHandType:
    """Test cases for ShortDeckHandType enum"""
    
    def test_hand_type_values(self):
        """Test hand type strength values - Flush beats Full House in Short Deck"""
        assert ShortDeckHandType.HIGH_CARD.strength == 1
        assert ShortDeckHandType.ONE_PAIR.strength == 2
        assert ShortDeckHandType.TWO_PAIR.strength == 3
        assert ShortDeckHandType.THREE_OF_A_KIND.strength == 4
        assert ShortDeckHandType.STRAIGHT.strength == 5
        assert ShortDeckHandType.FULL_HOUSE.strength == 6
        assert ShortDeckHandType.FLUSH.strength == 7  # Higher than Full House!
        assert ShortDeckHandType.FOUR_OF_A_KIND.strength == 8
        assert ShortDeckHandType.STRAIGHT_FLUSH.strength == 9
        assert ShortDeckHandType.ROYAL_FLUSH.strength == 10
    
    def test_hand_type_names(self):
        """Test hand type names"""
        assert ShortDeckHandType.HIGH_CARD.type_name == "High Card"
        assert ShortDeckHandType.FOUR_OF_A_KIND.type_name == "Four of a Kind"
        assert ShortDeckHandType.ROYAL_FLUSH.type_name == "Royal Flush"
        assert ShortDeckHandType.FLUSH.type_name == "Flush"
        assert ShortDeckHandType.FULL_HOUSE.type_name == "Full House"
    
    def test_hand_type_string_representation(self):
        """Test string representation of hand types"""
        assert str(ShortDeckHandType.HIGH_CARD) == "High Card"
        assert str(ShortDeckHandType.ROYAL_FLUSH) == "Royal Flush"
    
    def test_hand_type_comparison(self):
        """Test hand type comparison - KEY: Flush > Full House in Short Deck"""
        assert ShortDeckHandType.HIGH_CARD < ShortDeckHandType.ONE_PAIR
        assert ShortDeckHandType.FLUSH > ShortDeckHandType.FULL_HOUSE  # Short Deck rule!
        assert ShortDeckHandType.ROYAL_FLUSH >= ShortDeckHandType.STRAIGHT_FLUSH
        assert ShortDeckHandType.TWO_PAIR <= ShortDeckHandType.THREE_OF_A_KIND
        assert ShortDeckHandType.STRAIGHT < ShortDeckHandType.FULL_HOUSE
        assert ShortDeckHandType.FULL_HOUSE < ShortDeckHandType.FLUSH
    
    def test_hand_type_equality(self):
        """Test hand type equality"""
        assert ShortDeckHandType.FLUSH == ShortDeckHandType.FLUSH
        assert ShortDeckHandType.FLUSH != ShortDeckHandType.FULL_HOUSE


class TestShortDeckHandRanking:
    """Test cases for ShortDeckHandRanking class"""
    
    def test_hand_ranking_creation(self):
        """Test hand ranking creation"""
        cards = [
            Card(ShortDeckRank.ACE, Suit.SPADES),
            Card(ShortDeckRank.ACE, Suit.HEARTS),
            Card(ShortDeckRank.ACE, Suit.DIAMONDS),
            Card(ShortDeckRank.ACE, Suit.CLUBS),
            Card(ShortDeckRank.KING, Suit.SPADES)
        ]
        ranking = ShortDeckHandRanking(ShortDeckHandType.FOUR_OF_A_KIND, [ShortDeckRank.ACE, ShortDeckRank.KING], cards)
        
        assert ranking.hand_type == ShortDeckHandType.FOUR_OF_A_KIND
        assert ranking.key_ranks == [ShortDeckRank.ACE, ShortDeckRank.KING]
        assert ranking.cards == cards
    
    def test_quad_string_representation(self):
        """Test string representation for four of a kind"""
        cards = [Card(ShortDeckRank.ACE, Suit.SPADES)] * 5
        ranking = ShortDeckHandRanking(ShortDeckHandType.FOUR_OF_A_KIND, [ShortDeckRank.ACE, ShortDeckRank.KING], cards)
        assert str(ranking) == "Quad(A)"
    
    def test_full_house_string_representation(self):
        """Test string representation for full house"""
        cards = [Card(ShortDeckRank.ACE, Suit.SPADES)] * 5
        ranking = ShortDeckHandRanking(ShortDeckHandType.FULL_HOUSE, [ShortDeckRank.ACE, ShortDeckRank.KING], cards)
        assert str(ranking) == "Full House(A over K)"
    
    def test_flush_string_representation(self):
        """Test string representation for flush"""
        cards = [Card(ShortDeckRank.ACE, Suit.SPADES)] * 5
        ranking = ShortDeckHandRanking(ShortDeckHandType.FLUSH, [ShortDeckRank.ACE], cards)
        assert str(ranking) == "Flush(A high)"
    
    def test_straight_string_representation(self):
        """Test string representation for straight"""
        cards = [Card(ShortDeckRank.ACE, Suit.SPADES)] * 5
        ranking = ShortDeckHandRanking(ShortDeckHandType.STRAIGHT, [ShortDeckRank.ACE], cards)
        assert str(ranking) == "Straight(A high)"
    
    def test_straight_flush_string_representation(self):
        """Test string representation for straight flush"""
        cards = [Card(ShortDeckRank.KING, Suit.SPADES)] * 5
        ranking = ShortDeckHandRanking(ShortDeckHandType.STRAIGHT_FLUSH, [ShortDeckRank.KING], cards)
        assert str(ranking) == "Straight Flush(K high)"
    
    def test_royal_flush_string_representation(self):
        """Test string representation for royal flush"""
        cards = [Card(ShortDeckRank.ACE, Suit.SPADES)] * 5
        
        # Direct royal flush
        ranking1 = ShortDeckHandRanking(ShortDeckHandType.ROYAL_FLUSH, [ShortDeckRank.ACE], cards)
        assert str(ranking1) == "Royal Flush"
        
        # Straight flush with Ace high should also show as Royal Flush
        ranking2 = ShortDeckHandRanking(ShortDeckHandType.STRAIGHT_FLUSH, [ShortDeckRank.ACE], cards)
        assert str(ranking2) == "Royal Flush"
    
    def test_three_of_a_kind_string_representation(self):
        """Test string representation for three of a kind"""
        cards = [Card(ShortDeckRank.ACE, Suit.SPADES)] * 5
        ranking = ShortDeckHandRanking(ShortDeckHandType.THREE_OF_A_KIND, [ShortDeckRank.ACE], cards)
        assert str(ranking) == "Three of a Kind(A)"
    
    def test_two_pair_string_representation(self):
        """Test string representation for two pair"""
        cards = [Card(ShortDeckRank.ACE, Suit.SPADES)] * 5
        ranking = ShortDeckHandRanking(ShortDeckHandType.TWO_PAIR, [ShortDeckRank.ACE, ShortDeckRank.KING], cards)
        assert str(ranking) == "Two Pair(A and K)"
    
    def test_one_pair_string_representation(self):
        """Test string representation for one pair"""
        cards = [Card(ShortDeckRank.ACE, Suit.SPADES)] * 5
        ranking = ShortDeckHandRanking(ShortDeckHandType.ONE_PAIR, [ShortDeckRank.ACE], cards)
        assert str(ranking) == "Pair(A)"
    
    def test_high_card_string_representation(self):
        """Test string representation for high card"""
        cards = [Card(ShortDeckRank.ACE, Suit.SPADES)] * 5
        ranking = ShortDeckHandRanking(ShortDeckHandType.HIGH_CARD, [ShortDeckRank.ACE], cards)
        assert str(ranking) == "High Card(A)"
    
    def test_hand_ranking_comparison(self):
        """Test hand ranking comparison"""
        # Create some test cards
        cards = [Card(ShortDeckRank.ACE, Suit.SPADES)] * 5
        
        # Create different rankings
        quad_aces = ShortDeckHandRanking(ShortDeckHandType.FOUR_OF_A_KIND, [ShortDeckRank.ACE], cards)
        flush_ace = ShortDeckHandRanking(ShortDeckHandType.FLUSH, [ShortDeckRank.ACE], cards)
        full_house = ShortDeckHandRanking(ShortDeckHandType.FULL_HOUSE, [ShortDeckRank.ACE, ShortDeckRank.KING], cards)
        straight_ace = ShortDeckHandRanking(ShortDeckHandType.STRAIGHT, [ShortDeckRank.ACE], cards)
        
        # Test Short Deck specific comparison: Flush > Full House
        assert flush_ace > full_house
        assert full_house < flush_ace
        
        # Test other comparisons
        assert quad_aces > flush_ace
        assert straight_ace < full_house
    
    def test_hand_ranking_equality(self):
        """Test hand ranking equality"""
        cards1 = [Card(ShortDeckRank.ACE, Suit.SPADES)] * 5
        cards2 = [Card(ShortDeckRank.KING, Suit.HEARTS)] * 5
        
        ranking1 = ShortDeckHandRanking(ShortDeckHandType.FLUSH, [ShortDeckRank.ACE], cards1)
        ranking2 = ShortDeckHandRanking(ShortDeckHandType.FLUSH, [ShortDeckRank.ACE], cards2)
        ranking3 = ShortDeckHandRanking(ShortDeckHandType.FLUSH, [ShortDeckRank.KING], cards2)
        
        assert ranking1 == ranking2  # Same hand type and key ranks
        assert ranking1 != ranking3  # Different key ranks
    
    def test_same_type_different_ranks(self):
        """Test comparison of same hand type with different key ranks"""
        cards = [Card(ShortDeckRank.ACE, Suit.SPADES)] * 5
        
        ace_high = ShortDeckHandRanking(ShortDeckHandType.HIGH_CARD, [ShortDeckRank.ACE], cards)
        king_high = ShortDeckHandRanking(ShortDeckHandType.HIGH_CARD, [ShortDeckRank.KING], cards)
        
        assert ace_high > king_high
        assert king_high < ace_high