"""
config/schema.py — schema & defaults for chat configuration.
"""

from dataclasses import dataclass, field
from typing import Optional

@dataclass
class DatabaseConfig:
    engine: str = "sqlite"       # "sqlite" | "mariadb"
    sqlite_path: str = "chat.db"
    mariadb_host: str = "localhost"
    mariadb_port: int = 3306
    mariadb_user: str = "chat"
    mariadb_password: str = "chat"
    mariadb_database: str = "chat"

@dataclass
class SecurityConfig:
    secret: str = "default_secret_change_me"
    salt: str = "default_salt_change_me"
    admin_token: str = ""
    rate_limit: int = 5
    rate_window: int = 10
    max_message_length: int = 2000

@dataclass
class ServerConfig:
    host: str = "0.0.0.0"
    port: int = 8080
    debug: bool = False

@dataclass
class TenorConfig:
    api_key: str = ""

@dataclass
class AppConfig:
    db: DatabaseConfig = field(default_factory=DatabaseConfig)
    security: SecurityConfig = field(default_factory=SecurityConfig)
    server: ServerConfig = field(default_factory=ServerConfig)
    tenor: TenorConfig = field(default_factory=TenorConfig)