from pydantic import BaseModel, EmailStr, Field
from typing import Optional
from datetime import datetime


# User schemas
class UserBase(BaseModel):
    username: str = Field(..., min_length=3, max_length=50)
    email: EmailStr


class UserCreate(UserBase):
    password: str = Field(..., min_length=6)


class UserResponse(UserBase):
    id: int
    is_active: bool
    is_admin: bool
    created_at: datetime
    last_login: Optional[datetime] = None

    class Config:
        from_attributes = True


# Auth schemas
class Token(BaseModel):
    access_token: str
    token_type: str


class TokenData(BaseModel):
    username: Optional[str] = None


class LoginRequest(BaseModel):
    username: str
    password: str


# UserStats schemas
class UserStatsBase(BaseModel):
    energy: float = 100.0
    max_energy: float = 100.0
    hunger: float = 100.0
    max_hunger: float = 100.0
    level: int = 1
    experience: int = 0
    coins: int = 0


class UserStatsResponse(UserStatsBase):
    id: int
    user_id: int
    total_playtime: int
    rooms_visited: int
    items_collected: int
    enemies_defeated: int
    deaths: int
    updated_at: datetime

    class Config:
        from_attributes = True


class UserStatsUpdate(BaseModel):
    energy: Optional[float] = None
    hunger: Optional[float] = None
    experience: Optional[int] = None
    coins: Optional[int] = None
    rooms_visited: Optional[int] = None
    items_collected: Optional[int] = None
    enemies_defeated: Optional[int] = None
    deaths: Optional[int] = None


# GameSession schemas
class GameSessionCreate(BaseModel):
    pass


class GameSessionResponse(BaseModel):
    id: int
    user_id: int
    started_at: datetime
    ended_at: Optional[datetime] = None
    duration: int
    energy_consumed: float
    hunger_consumed: float
    rooms_visited_session: int
    items_collected_session: int
    enemies_defeated_session: int
    deaths_session: int

    class Config:
        from_attributes = True


# Admin schemas
class AdminStats(BaseModel):
    total_users: int
    active_users_today: int
    new_users_today: int
    total_sessions: int
    avg_session_duration: float
    total_playtime: int
    total_rooms_visited: int
    total_items_collected: int
    total_enemies_defeated: int


class UserListItem(BaseModel):
    id: int
    username: str
    email: str
    is_active: bool
    is_admin: bool
    created_at: datetime
    last_login: Optional[datetime] = None
    
    class Config:
        from_attributes = True


class UserDetail(UserListItem):
    stats: Optional[UserStatsResponse] = None