from fastapi import FastAPI, Request, HTTPException
from fastapi.middleware.cors import CORSMiddleware
import uvicorn
import random
import logging

app = FastAPI()

# Enable CORS
app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"],
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

games = {}

@app.post("/api/createGame")
async def create_game(request: Request):
    data = await request.json()
    pin = data.get("pin")
    player_name = data.get("playerName")
    notPlaying = data.get("notPlaying")

    if not pin or not player_name:
        if not notPlaying:
            raise HTTPException(status_code=400, detail="PIN and player name are required.")
        else:
            games[pin] = {
            "pin": pin,
            "players": None,
            "gameStarted": False,
            "turn": player_name,
            "permissions": {player_name: {"steal": True, "gain": True}}
            }
            return {"success": True, "message": "Empty game created."}
            
    if pin in games:
        return {"success": False, "message": "Game already exists."}

    # Initialize permissions as a dictionary with proper keys.
    games[pin] = {
        "pin": pin,
        "players": [player_name],
        "gameStarted": False,
        "turn": player_name,
        "currentAction": None,
        "currentChallenge": None,
        "pendingCardLoss": None,
        "votes": [],
        "permissions": {player_name: {"steal": True, "gain": True}}
    }

    return {"success": True, "message": "Game created successfully!"}

@app.get("/api/test")
async def test():
    return {"success": True}

@app.get("/api/getGames")
async def getGames():
    return {"success": True, "data": games}

@app.get("/api/getGameStatus")
async def get_game_status(pin: str):
    game = games.get(pin)
    if not game:
        return {"success": False, "message": "Game was lost or does not exist. Please create a new game."}
    return {"success": True, "game": game}

@app.post("/api/handleAction")
async def handle_action(request: Request):
    data = await request.json()
    pin = data.get("pin")
    player = data.get("player")
    action = data.get("action")
    target = data.get("target")
    response = data.get("response")
    challenge = data.get("challenge")

    if pin not in games:
        raise HTTPException(status_code=404, detail="Game not found.")

    game = games[pin]

    # If a challenge is pending, only allow challengeResponse (or getStatus) actions.
    if game.get("challenge") and action not in ['challengeResponse', 'getStatus', 'choose']:
        return {"success": False, "message": "A challenge is pending, only challenge responses are allowed."}

    if action == 'getStatus':
        check_game_status(game)
        return {"success": True, "challenge": game.get("challenge", None)}

    if action == 'steal':
        if game["turn"] != player:
            return {"success": False, "message": "Not your turn."}
        if game["permissions"].get(player, {}).get("steal", True):
            game["challenge"] = {
                "action": 'steal',
                "challenger": player,
                "target": target,
                "challengeType": 'steal',
                "status": 'pending'
            }
            return {"success": True, "message": f"Steal initiated by {player} targeting {target}. Awaiting response from {target}."}
        else:
            return {"success": False, "message": "You can only steal once per turn."}

    if action == 'endTurn':
        if game["turn"] != player:
            return {"success": False, "message": "Not your turn."}
        players_list = game.get("players", [])
        # Find the index of the current player in the players list
        current_index = next((i for i, p in enumerate(players_list) if p["name"] == player), None)
        if current_index is None:
            return {"success": False, "message": "Player not found in game."}
        next_index = (current_index + 1) % len(players_list)
        game["turn"] = players_list[next_index]["name"]
        game["permissions"][player]["gain"] = True
        game["permissions"][player]["steal"] = True
        return {"success": True, "message": f"Turn ended. Next turn: {game['turn']}"}

    
    if action == 'coup':
        if game["turn"] != player:
            return {"success": False, "message": "Not your turn."}
        player_data = next((p for p in game["players"] if p["name"] == player), None)
        if not player_data:
            return {"success": False, "message": "Player not found."}
        if player_data["coins"] < 7:
            return {"success": False, "message": "You don't have enough coins to coup another player."}
        player_data["coins"] -= 7
        game["challenge"] = {
            "action": 'coup',
            "challenger": target,
            "target": player,
            "challengeType": 'coup',
            "status": 'choose'
        }
        return {"success": True, "message": f"Coup initiated by {player} targeting {target}."}

    if action == 'assassin':
        player_data = next((p for p in game["players"] if p["name"] == player), None)
        if player_data["coins"] < 3:
            return {"success": False, "message": "You don't have enough coins to assassinate another player."}
        if game["turn"] != player:
            return {"success": False, "message": "Not your turn."}
        game["challenge"] = {
            "action": "assassin",
            "challenger": player,
            "target": target,
            "challengeType": "assassin",
            "status": "pending",
            "phase": "target_decision"
        }
        player_data["coins"] -= 3
        return {"success": True, "message": f"Assassin action initiated by {player} targeting {target}. Awaiting target's response."}

    if action == 'duke':
        if game["turn"] != player:
            return {"success": False, "message": "Not your turn."}
        # Duke is a money-earning action and only works if the player is allowed to gain.
        player_data = next((p for p in game["players"] if p["name"] == player), None)
        if not game["permissions"].get(player, {}).get("gain", True):
            return {"success": False, "message": "You can only earn money once per turn."}
        game["challenge"] = {
            "action": "duke",
            "challenger": player,
            "challengeType": "duke",
            "responses": {},
            "status": "pending"
        }
        return {"success": True, "message": f"Duke action initiated by {player}. Waiting for opponents to respond."}

    if action == 'challengeResponse':
        if not game.get("challenge"):
            return {"success": False, "message": "No challenge pending."}

        # Handle Steal response.
        if game["challenge"]["challengeType"] == "steal":
            challenger_player = next(p for p in game["players"] if p["name"] == game["challenge"]["challenger"])
            target_player = next(p for p in game["players"] if p["name"] == game["challenge"]["target"])
            if response == 'accept':
                coins_to_steal = min(target_player["coins"], 2)
                target_player["coins"] -= coins_to_steal
                challenger_player["coins"] += coins_to_steal
                game["permissions"][challenger_player["name"]]["steal"] = False
                game["challenge"] = None
                return {"success": True, "message": f"Steal accepted. {coins_to_steal} coins transferred from {target_player['name']} to {challenger_player['name']}."}
            elif response == 'challenge':
                if "Captain" in challenger_player["cards"]:
                    coins_to_steal = min(target_player["coins"], 2)
                    target_player["coins"] -= coins_to_steal
                    challenger_player["coins"] += coins_to_steal
                    game["permissions"][challenger_player["name"]]["steal"] = False
                    game["challenge"]["status"] = 'choose'
                    game["challenge"]["challenger"] = target_player['name']
                    game["challenge"]["target"] = challenger_player['name']
                    return {"success": True, "message": f"Challenge failed. {target_player['name']} loses {coins_to_steal} coins to {challenger_player['name']}."}
                else:
                    game["challenge"]["status"] = 'choose'
                    return {"success": True, "message": f"Challenge successful. {challenger_player['name']} must choose a card to lose.", "challenge": game["challenge"]}

        # Handle Ambassador response.
        elif game["challenge"]["challengeType"] == "ambassador":
            if response == 'allow':
                if "responses" not in game["challenge"]:
                    game["challenge"]["responses"] = {}
                game["challenge"]["responses"][player] = 'allow'
                total_opponents = len(game["players"]) - 1
                if len(game["challenge"]["responses"]) == total_opponents:
                    ambassador_player = next(p for p in game["players"] if p["name"] == game["challenge"]["challenger"])
                    ambassador_player["cards"] = generate_cards(len(ambassador_player["cards"]))
                    game["challenge"] = None
                    return {"success": True, "message": f"Card swap accepted. {ambassador_player['name']} swaps cards with the deck."}
                else:
                    return {"success": True, "message": f"{player} allowed the card swap. Awaiting other responses."}
            elif response == 'challenge':
                ambassador_player = next(p for p in game["players"] if p["name"] == game["challenge"]["challenger"])
                if "Ambassador" in ambassador_player["cards"]:
                    game["challenge"]["status"] = "choose"
                    game["challenge"]["challenger"] = player
                    game["challenge"]["target"] = ambassador_player["name"]
                    ambassador_player["cards"] = generate_cards(len(ambassador_player["cards"]))
                    game["challenge"] = None
                    return {"success": True, "message": f"Challenge failed. {player} must lose a card, while {ambassador_player['name']} swaps cards with the deck."}
                else:
                    game["challenge"]["status"] = "choose"
                    return {"success": True, "message": "Challenge successful. Ambassador user must choose a card to lose.", "challenge": game["challenge"]}

        # Handle Assassin/Contessa responses.
        elif game["challenge"]["challengeType"] == "assassin":
            if game["challenge"].get("phase") == "target_decision":
                if response == "allow":
                    game["challenge"]["status"] = "choose"
                    game["challenge"]["challenger"] = game["challenge"]["target"]
                    return {"success": True, "message": f"{game['challenge']['target']} must now choose a card to lose."}
                elif response == "challenge":
                    assassin_player = next(p for p in game["players"] if p["name"] == game["challenge"]["challenger"])
                    if "Assassin" in assassin_player["cards"]:
                        target_player = next(p for p in game["players"] if p["name"] == game["challenge"]["target"])
                        target_player["cards"] = []
                        game["challenge"] = None
                        return {"success": True, "message": f"Challenge failed. {target_player['name']} loses both cards."}
                    else:
                        game["challenge"]["status"] = "choose"
                        game["challenge"]["challenger"] = assassin_player["name"]
                        return {"success": True, "message": f"Challenge successful. {assassin_player['name']} must choose a card to lose.", "challenge": game["challenge"]}
                elif response == "contessa":
                    game["challenge"]["phase"] = "assassin_contessa"
                    return {"success": True, "message": f"{game['challenge']['challenger']} must now choose to challenge or accept the Contessa."}
            elif game["challenge"].get("phase") == "assassin_contessa":
                if response == "accept":
                    game["challenge"]["status"] = "choose"
                    game["challenge"]["challenger"] = game["challenge"]["target"]
                    return {"success": True, "message": f"{game['challenge']['target']} must now choose a card to lose."}
                elif response == "challenge":
                    target_player = next(p for p in game["players"] if p["name"] == game["challenge"]["target"])
                    if "Contessa" in target_player["cards"]:
                        game["challenge"]["status"] = "choose"
                        return {"success": True, "message": f"Contessa challenge successful. {game['challenge']['challenger']} must choose a card to lose.", "challenge": game["challenge"]}
                    else:
                        target_player["cards"] = []
                        game["challenge"] = None
                        return {"success": True, "message": f"Contessa challenge failed. {target_player['name']} loses both cards."}

        # Handle Foreign Aid responses.
        elif game["challenge"]["challengeType"] == "foreignAid":
            challenger_player = next(p for p in game["players"] if p["name"] == game["challenge"]["challenger"])
            # If the response is coming from an opponent (blocking the action)
            if player != game["challenge"]["challenger"]:
                if response == "block":
                    # Instead of immediately ending the action, record the blocker and set status to pending block challenge.
                    game["challenge"]["blocker"] = player
                    game["challenge"]["status"] = "block_pending"
                    return {"success": True, "message": f"{player} is attempting to block Foreign Aid. {game['challenge']['challenger']} may now challenge or allow the block.", "challenge": game["challenge"]}
                else:
                    game["challenge"]["responses"][player] = response
                    total_opponents = len(game["players"]) - 1
                    if len(game["challenge"]["responses"]) == total_opponents:
                        challenger_player["coins"] += 2
                        game["permissions"][challenger_player["name"]]["gain"] = False
                        game["challenge"] = None
                        return {"success": True, "message": f"Foreign Aid accepted. {challenger_player['name']} gains 2 coins."}
                    else:
                        return {"success": True, "message": f"{player} allowed Foreign Aid. Awaiting other responses."}
            # Response from the challenger to a pending block.
            else:
                # This branch is for the foreign aid requester responding to a block.
                if response == "allow":
                    game["challenge"] = None
                    return {"success": True, "message": "Block accepted. Foreign Aid fails."}
                elif response == "challenge":
                    blocker = game["challenge"].get("blocker")
                    blocker_player = next(p for p in game["players"] if p["name"] == blocker)
                    if "Duke" in blocker_player["cards"]:
                        game["challenge"]["status"] = "choose"
                        return {"success": True, "message": f"Challenge failed. {game['challenge']['challenger']} must choose a card to lose.", "challenge": game["challenge"]}
                    else:
                        challenger_player["coins"] += 2
                        game["permissions"][challenger_player["name"]]["gain"] = False
                        game["challenge"]["challenger"] = blocker_player["name"]
                        game["challenge"]["status"] = "choose"
                        return {"success": True, "message": f"Challenge successful. {blocker} must choose a card to lose.", "challenge": game["challenge"]}

        # Handle Duke responses.
        elif game["challenge"]["challengeType"] == "duke":
            challenger_player = next(p for p in game["players"] if p["name"] == game["challenge"]["challenger"])
            if player == game["challenge"]["challenger"]:
                # The player who initiated duke doesn't respond here.
                return {"success": False, "message": "Initiator cannot respond to their own Duke action."}
            if response == "allow":
                if "responses" not in game["challenge"]:
                    game["challenge"]["responses"] = {}
                game["challenge"]["responses"][player] = "allow"
                total_opponents = len(game["players"]) - 1
                if len(game["challenge"]["responses"]) == total_opponents:
                    acting_player = next(p for p in game["players"] if p["name"] == game["challenge"]["challenger"])
                    acting_player["coins"] += 3
                    game["permissions"][challenger_player["name"]]["gain"] = False
                    game["challenge"] = None
                    return {"success": True, "message": f"Duke action accepted. {acting_player['name']} gains 3 coins."}
                else:
                    return {"success": True, "message": f"{player} allowed the Duke action. Awaiting other responses."}
            elif response == "challenge":
                acting_player = next(p for p in game["players"] if p["name"] == game["challenge"]["challenger"])
                if "Duke" in acting_player["cards"]:
                    game["challenge"]["status"] = "choose"
                    game["challenge"]["challenger"] = player
                    game["challenge"]["target"] = acting_player["name"]
                    acting_player["coins"] += 3
                    game["permissions"][challenger_player["name"]]["gain"] = False
                    return {"success": True, "message": f"Challenge failed. {player} must choose a card to lose.", "challenge": game["challenge"]}
                else:
                    game["challenge"]["status"] = "choose"
                    return {"success": True, "message": f"Challenge successful. {acting_player['name']} must choose a card to lose.", "challenge": game["challenge"]}
        
    if action == 'ambassador':
        if game["turn"] != player:
            return {"success": False, "message": "Not your turn."}
        game["challenge"] = {
            "action": "ambassador",
            "challenger": player,
            "challengeType": "ambassador",
            "status": "pending",
            "responses": {}
        }
        return {"success": True, "message": f"Card swap initiated by {player}. Waiting for opponents to respond."}

    if action == 'choose':
        acting_player = next((p for p in game["players"] if p["name"] == game["challenge"]["challenger"]), None)
        if acting_player and target in acting_player["cards"]:
            acting_player["cards"].remove(target)
            game["challenge"] = None
            return {"success": True, "message": f"{acting_player['name']} loses the {target} card."}
        else:
            return {"success": False, "message": f"Card {target} not found in {acting_player['name']}'s hand."}

    if action == 'income':
        if game["turn"] != player:
            return {"success": False, "message": "Not your turn."}
        player_found = False
        for p in game["players"]:
            if p["name"] == player:
                player_found = True
                if not game["permissions"].get(player, {}).get("gain", True):
                    return {"success": False, "message": "You can only earn money once per turn."}
                p["coins"] += 1
                game["permissions"][player]["gain"] = False
                return {"success": True, "message": f"You now have {p['coins']} coins."}
        if not player_found:
            raise HTTPException(status_code=404, detail="Player not found in the game.")

    if action == 'foreignAid':
        if game["turn"] != player:
            return {"success": False, "message": "Not your turn."}
        if not game["permissions"].get(player, {}).get("gain", True):
            return {"success": False, "message": "You can only earn money once per turn."}
        # Initiate Foreign Aid but allow opponents to respond (block or allow).
        game["challenge"] = {
            "action": "foreignAid",
            "challenger": player,
            "challengeType": "foreignAid",
            "responses": {},
            "status": "pending"
        }
        return {"success": True, "message": f"Foreign Aid initiated by {player}. Waiting for opponents to respond."}

    return {"success": True, "message": f"Action '{action}' processed for player {player}."}


@app.post("/api/joinGame")
async def join_game(request: Request):
    data = await request.json()
    pin = data.get("pin")
    player_name = data.get("playerName")

    game = games.get(pin)
    if not game:
        return {"success": False, "message": "Game not found."}

    # Prevent joining if game has already started.
    if game.get("gameStarted"):
        return {"success": False, "message": "Cannot join a game that has started."}

    formatted_name = player_name

    existing_names = [name.lower() for name in game["permissions"].keys()]
    if formatted_name.lower() in existing_names:
        return {"success": False, "message": "Player name taken."}

    game["players"].append(formatted_name)
    game["permissions"][formatted_name] = {"steal": True, "gain": True}
    
    return {"success": True, "message": "You joined successfully!"}

@app.put("/api/startGame")
async def start_game(request: Request):
    data = await request.json()
    pin = data.get("pin")

    game = games.get(pin)
    if not game:
        raise HTTPException(status_code=404, detail="Game not found.")

    if game["gameStarted"]:
        raise HTTPException(status_code=400, detail="Game has already started.")

    if len(game["players"]) == 0:
        raise HTTPException(status_code=400, detail="No players in the game.")

    # Initialize players with 2 coins and cards.
    game["players"] = [{"name": name, "coins": 2, "cards": generate_cards(2)} for name in game["players"]]
    # Reset permissions to a dictionary with proper keys for each player.
    game["permissions"] = {player["name"]: {"steal": True, "gain": True} for player in game["players"]}
    game["gameStarted"] = True
    game["turn"] = game["players"][0]["name"]

    return {"success": True, "message": "Game started successfully!"}

# New endpoint for deleting a game
@app.post("/api/deleteGame")
async def delete_game(request: Request):
    data = await request.json()
    pin = data.get("pin")
    newPin = data.get("newPin")
    
    if not pin:
        raise HTTPException(status_code=400, detail="PIN is required.")
    
    game = games.get(pin)
    if not game:
        raise HTTPException(status_code=404, detail="Game not found.")
    
    games[pin] = {"gameEnded": True, "newPin": newPin}
    return {"success": True, "message": "Game deleted successfully!"}

def generate_cards(numofcards):
    cards = ['Duke', 'Assassin', 'Captain', 'Ambassador', 'Contessa']
    shuffled = sorted(cards, key=lambda x: 0.5 - random.random())
    if numofcards == 1:
        return [shuffled[0]]
    else:
        return [shuffled[0], shuffled[1]]

if __name__ == "__main__":
    uvicorn.run(app, host="0.0.0.0", port=8000)

def check_game_status(game):
    # Filter active players (only those who still have cards)
    active_players = [p for p in game.get("players", []) if p.get("cards")]

    # If the current turn player is no longer in the active players, update turn to the next available player's name.
    if not any(p["name"] == game.get("turn") for p in active_players):
        if active_players:
            game["turn"] = active_players[0]["name"]
        else:
            game["turn"] = None

    # Update the game players to only the active players.
    game["players"] = active_players

    # Update permissions: Flag players with more than 10 coins to coup.
    for p in game["players"]:
        name = p["name"]
        if p.get("coins", 0) > 10:
            if name not in game.get("permissions", {}):
                game.setdefault("permissions", {})[name] = {}
            game["permissions"][name]["mustCoup"] = True
        else:
            if name in game.get("permissions", {}):
                game["permissions"][name].pop("mustCoup", None)
    return game

def capitalize_name(name):
    result = ""
    capitalize_next = True  # Capitalize first letter

    for char in name:
        if capitalize_next and char.isalpha():
            result += char.upper()
            capitalize_next = False
        else:
            result += char
        if char == " ":
            capitalize_next = True

    return result