import uuid
from typing import List, Optional, Dict
from shortdeck_arena.simulation import Simulation
from shortdeck_arena.agent import Agent, HumanAgent
from shortdeck_arena.game_stage import BlindConfig


class ArenaGame:
    def __init__(self, starting_stack: int = 1000, max_players: int = 6, 
                 small_blind: int = 1, big_blind: int = 2):
        self.agents = []
        self.player_names: List[str] = []
        self.starting_stack = starting_stack
        self.max_players = max_players
        self.sim: Optional[Simulation] = None
        
        self.blind_config = BlindConfig(small_blind, big_blind, ante=0)
        self.game_id = str(uuid.uuid4())
        
    def join_game(self, name) -> int:
        if len(self.agents) >= self.max_players:
            raise ValueError("Game is full")
        
        player_id = len(self.agents)
        agent = HumanAgent(player_id)
        self.agents.append(agent)
        self.player_names.append(name)
        
        if len(self.agents) == 1:
            self.sim = Simulation(self.agents, blind_config=self.blind_config)
            # 筹码默认1000
            self.sim.stacks = [self.starting_stack] * len(self.agents)
        elif self.sim:
            self.sim.agents = self.agents
            self.sim.player_states.append(self.sim.player_states[0].__class__.ACTIVE)
            self.sim.pot.append(0)
            self.sim.stacks.append(self.starting_stack)
            
        # 当有至少2个玩家时，触发新一轮
        if len(self.agents) >= 2 and self.sim:
            self.sim.stacks = [self.starting_stack] * len(self.agents)
            self.sim.new_round()
        
        return player_id

    def apply_action(self, player_id, action, amount: Optional[int] = None) -> dict:
        if not self.sim:
            return {"success": False, "message": "游戏未开始"}
        
        try:
            self.sim.apply_action(player_id, action, amount)
            
            self.sim.dump_data()
            
            return {"success": True, "message": f"Applied {action}"}
        except Exception as e:
            return {"success": False, "message": str(e)}

    def info(self, player_id: Optional[int] = None) -> Dict:

        if not self.sim:
            return {"error": "游戏未初始化"}

        info_data = {
            "game_id": self.game_id,
            "players": self.player_names,
            "dealer_index": self.sim.dealer_position,
            "current_turn": self.sim.current_turn,
            "stage": self.sim.current_stage.value,
            "total_pot": self.sim.total_pot,
            "side_pots": [{"amount": pot.amount, "eligible_players": list(pot.eligible_players)} 
                         for pot in self.sim.get_side_pots()],
        }

        if player_id is not None and 0 <= player_id < len(self.sim.stacks):
            try:
                player_cards = self.sim.player_cards(player_id)
                info_data["player_cards"] = [str(card) for card in player_cards]
            except Exception:
                info_data["player_cards"] = []
            
            info_data["actions"] = self.sim.get_available_actions(player_id)
        else:
            info_data["player_cards"] = []
            info_data["actions"] = {"can_act": False, "reason": "Invalid player"}
        
        try:
            board_cards = self.sim.board_cards(self.sim.current_stage.value)
            info_data["board_cards"] = [str(card) for card in board_cards]
        except Exception:
            info_data["board_cards"] = []

        info_data["stacks"] = self.sim.stacks.copy()
        info_data["player_states"] = [state.value for state in self.sim.player_states]
        info_data["current_pot"] = self.sim.pot.copy()

        return info_data

    
    def get_hand_strength(self, player_id: int) -> Dict:
        ranking = self.sim.evaluate_player_hand(player_id)
        if ranking is None:
            return {"error": "无法评估手牌"}
        return {
            "hand_type": ranking.hand_type.type_name,
            "description": str(ranking),
            "strength": ranking.get_strength(),
            "cards": [str(card) for card in ranking.cards]
        }
    
    def check_hand_complete(self) -> bool:
        return self.sim.is_hand_complete() if self.sim else False
    
    def get_winners(self) -> Dict:

        if not self.sim:
            return {"error": "游戏未初始化"}
        
        if not self.sim.is_hand_complete():
            return {"error": "手牌未完成"}
        
        return self.sim.complete_hand()
    
    def showdown(self) -> Dict:
        if not self.sim:
            return {"error": "游戏未初始化"}
        
        winners = self.sim.determine_winners()
        showdown_info = {}
        
        for pid, ranking in winners.items():
            if ranking is not None:
                showdown_info[pid] = {
                    "cards": [str(card) for card in self.sim.player_cards(pid)],
                    "hand_type": ranking.hand_type.type_name,
                    "description": str(ranking),
                    "strength": ranking.get_strength()
                }
            else:
                showdown_info[pid] = {
                    "cards": [str(card) for card in self.sim.player_cards(pid)],
                    "hand_type": "Winner by default",
                    "description": "Other players folded",
                    "strength": float('inf')
                }
        
        return {
            "showdown": showdown_info,
            "pot_distribution": self.sim.distribute_pot()
        }
    
    @property
    def pot(self) -> int:
        return self.sim.total_pot if self.sim else 0
    
    @property
    def stacks(self) -> List[int]:
        return self.sim.stacks if self.sim else []
    
    @property
    def current_turn(self) -> int:
        return self.sim.current_turn if self.sim else -1
    
    @property
    def history(self) -> List[Dict]:
        return self.sim.history if self.sim else []