"""
Configuration Data Models for Trixy Application

This module defines type-safe configuration data structures for all deployment modes:
- ServerConfig: Configuration for server mode
- ClientConfig: Configuration for client/satellite mode  
- StandaloneConfig: Configuration for standalone mode

Each configuration class provides:
- Type-safe attribute access
- Validation methods
- Serialization/deserialization
- Environment variable override support
- Thread-safe access patterns
"""

from dataclasses import dataclass, field, asdict
from typing import Dict, List, Optional, Union, Any, Set
from pathlib import Path
import os
from enum import Enum


class LogLevel(Enum):
    """Logging levels for the application."""
    DEBUG = "debug"
    INFO = "info"
    WARNING = "warning"
    ERROR = "error"
    CRITICAL = "critical"


class DeploymentMode(Enum):
    """Deployment modes for the Trixy application."""
    SERVER = "server"
    CLIENT = "client"
    STANDALONE = "standalone"


@dataclass
class NetworkConfig:
    """Network configuration for sockets and connections."""
    # Command socket configuration
    command_port: int = 2101
    command_bind_address: str = "0.0.0.0"
    command_max_connections: int = 50
    command_timeout: int = 30
    command_buffer_size: int = 8192
    
    # Audio stream ports
    raw_audio_input_port: int = 2102
    raw_audio_output_port: int = 2103
    raw_music_output_port: int = 2104
    
    # Audio stream configuration
    audio_bind_address: str = "0.0.0.0"
    audio_timeout: int = 10
    audio_buffer_size: int = 16384
    
    # Connection settings
    heartbeat_interval: int = 30
    max_retry_attempts: int = 5
    retry_delay: int = 5
    connection_timeout: int = 10
    
    # Security settings
    enable_encryption: bool = False
    encryption_key_file: Optional[str] = None
    enable_compression: bool = True
    compression_level: int = 6
    
    def validate(self) -> List[str]:
        """Validate network configuration and return any errors."""
        errors = []
        
        # Port validation
        ports = [
            self.command_port, 
            self.raw_audio_input_port,
            self.raw_audio_output_port, 
            self.raw_music_output_port
        ]
        
        for port in ports:
            if not (1024 <= port <= 65535):
                errors.append(f"Port {port} must be between 1024 and 65535")
        
        # Check for port conflicts
        if len(set(ports)) != len(ports):
            errors.append("Network ports must be unique")
        
        # Validate addresses
        if not self.command_bind_address:
            errors.append("Command bind address cannot be empty")
        if not self.audio_bind_address:
            errors.append("Audio bind address cannot be empty")
        
        # Validate timeouts and limits
        if self.command_timeout <= 0:
            errors.append("Command timeout must be positive")
        if self.audio_timeout <= 0:
            errors.append("Audio timeout must be positive")
        if self.command_max_connections <= 0:
            errors.append("Max connections must be positive")
        
        return errors


@dataclass
class AudioConfig:
    """Audio processing configuration."""
    # Audio format settings
    sample_rate: int = 16000
    channels: int = 1  # Mono
    bit_depth: int = 16
    frame_size: int = 1024
    
    # Recording settings
    max_recording_duration: int = 60  # seconds
    silence_threshold: float = 0.01
    silence_duration: float = 3.0  # seconds
    pre_recording_buffer: float = 1.0  # seconds
    
    # Audio processing
    enable_noise_reduction: bool = True
    enable_auto_gain: bool = True
    gain_level: float = 1.0
    
    # VAD (Voice Activity Detection) settings
    vad_enabled: bool = True
    vad_aggressiveness: int = 2  # 0-3, higher = more aggressive
    vad_frame_duration: int = 30  # milliseconds
    
    # Music playback settings
    music_sample_rate: int = 48000
    music_channels: int = 2  # Stereo
    music_bit_depth: int = 16
    
    def validate(self) -> List[str]:
        """Validate audio configuration and return any errors."""
        errors = []
        
        # Sample rate validation
        valid_sample_rates = [8000, 16000, 22050, 44100, 48000]
        if self.sample_rate not in valid_sample_rates:
            errors.append(f"Sample rate must be one of {valid_sample_rates}")
        if self.music_sample_rate not in valid_sample_rates:
            errors.append(f"Music sample rate must be one of {valid_sample_rates}")
        
        # Channels validation
        if self.channels not in [1, 2]:
            errors.append("Channels must be 1 (mono) or 2 (stereo)")
        if self.music_channels not in [1, 2]:
            errors.append("Music channels must be 1 (mono) or 2 (stereo)")
        
        # Bit depth validation
        if self.bit_depth not in [16, 24, 32]:
            errors.append("Bit depth must be 16, 24, or 32")
        if self.music_bit_depth not in [16, 24, 32]:
            errors.append("Music bit depth must be 16, 24, or 32")
        
        # Duration and threshold validation
        if self.max_recording_duration <= 0:
            errors.append("Max recording duration must be positive")
        if not (0.0 <= self.silence_threshold <= 1.0):
            errors.append("Silence threshold must be between 0.0 and 1.0")
        if self.silence_duration <= 0:
            errors.append("Silence duration must be positive")
        if self.pre_recording_buffer < 0:
            errors.append("Pre-recording buffer must be non-negative")
        
        # VAD validation
        if not (0 <= self.vad_aggressiveness <= 3):
            errors.append("VAD aggressiveness must be between 0 and 3")
        if self.vad_frame_duration not in [10, 20, 30]:
            errors.append("VAD frame duration must be 10, 20, or 30 ms")
        
        return errors


@dataclass
class MLConfig:
    """Machine Learning model configuration."""
    # Model paths
    wakeword_model_path: str = "models/wakeword/default.pth"
    voice_recognition_model_path: str = "models/voice_recognition/default.pth"
    
    # Model settings
    wakeword_threshold: float = 0.8
    voice_recognition_threshold: float = 0.7
    model_cache_size: int = 3
    
    # Processing settings
    enable_gpu: bool = True
    gpu_device_id: int = 0
    batch_size: int = 1
    max_inference_time: float = 5.0  # seconds
    
    # Training settings
    training_data_path: str = "trainer/data"
    model_output_path: str = "models"
    training_batch_size: int = 32
    training_epochs: int = 100
    learning_rate: float = 0.001
    
    def validate(self) -> List[str]:
        """Validate ML configuration and return any errors."""
        errors = []
        
        # Threshold validation
        if not (0.0 <= self.wakeword_threshold <= 1.0):
            errors.append("Wakeword threshold must be between 0.0 and 1.0")
        if not (0.0 <= self.voice_recognition_threshold <= 1.0):
            errors.append("Voice recognition threshold must be between 0.0 and 1.0")
        
        # Hardware validation
        if self.gpu_device_id < 0:
            errors.append("GPU device ID must be non-negative")
        if self.batch_size <= 0:
            errors.append("Batch size must be positive")
        if self.max_inference_time <= 0:
            errors.append("Max inference time must be positive")
        
        # Training validation
        if self.training_batch_size <= 0:
            errors.append("Training batch size must be positive")
        if self.training_epochs <= 0:
            errors.append("Training epochs must be positive")
        if self.learning_rate <= 0:
            errors.append("Learning rate must be positive")
        
        # Path validation (basic existence check will be done by validator)
        if not self.wakeword_model_path:
            errors.append("Wakeword model path cannot be empty")
        # Voice recognition model path is optional - if not provided, voice recognition will be disabled
        
        return errors


@dataclass
class PluginConfig:
    """Plugin system configuration."""
    # Plugin paths and loading
    plugin_directories: List[str] = field(default_factory=lambda: ["plugins"])
    auto_load_plugins: bool = True
    plugin_timeout: int = 30  # seconds
    max_plugin_memory: int = 512  # MB
    
    # Plugin security
    enable_plugin_sandboxing: bool = True
    allowed_plugin_apis: Set[str] = field(default_factory=lambda: {
        "event_handler", "satellite_manager", "asset_manager", 
        "config_manager", "scheduler"
    })
    
    # Plugin management
    enable_hot_reload: bool = True
    reload_check_interval: int = 5  # seconds
    max_reload_attempts: int = 3
    
    def validate(self) -> List[str]:
        """Validate plugin configuration and return any errors."""
        errors = []
        
        if not self.plugin_directories:
            errors.append("At least one plugin directory must be specified")
        
        if self.plugin_timeout <= 0:
            errors.append("Plugin timeout must be positive")
        if self.max_plugin_memory <= 0:
            errors.append("Max plugin memory must be positive")
        if self.reload_check_interval <= 0:
            errors.append("Reload check interval must be positive")
        if self.max_reload_attempts <= 0:
            errors.append("Max reload attempts must be positive")
        
        return errors


@dataclass
class SatelliteConfig:
    """Satellite/client specific configuration."""
    # Connection settings
    server_host: str = "localhost"
    server_port: int = 2101
    auto_reconnect: bool = True
    reconnect_interval: int = 5  # seconds
    
    # Satellite identification
    satellite_id: Optional[str] = None
    room_name: str = "default"
    alias_name: str = "trixy-satellite"
    mac_address: Optional[str] = None
    
    # Local processing
    local_wakeword_processing: bool = True
    local_voice_recognition: bool = False
    buffer_audio_locally: bool = True
    
    # Audio streaming
    stream_quality: str = "high"  # low, medium, high
    compression_enabled: bool = True
    
    def validate(self) -> List[str]:
        """Validate satellite configuration and return any errors."""
        errors = []
        
        if not self.server_host:
            errors.append("Server host cannot be empty")
        if not (1024 <= self.server_port <= 65535):
            errors.append("Server port must be between 1024 and 65535")
        if self.reconnect_interval <= 0:
            errors.append("Reconnect interval must be positive")
        
        if not self.room_name:
            errors.append("Room name cannot be empty")
        if not self.alias_name:
            errors.append("Alias name cannot be empty")
        
        if self.stream_quality not in ["low", "medium", "high"]:
            errors.append("Stream quality must be 'low', 'medium', or 'high'")
        
        return errors


@dataclass
class SecurityConfig:
    """Security and authentication configuration."""
    # Encryption settings
    enable_encryption: bool = False
    encryption_algorithm: str = "AES-256-GCM"
    key_rotation_interval: int = 86400  # 24 hours in seconds
    
    # Authentication
    require_authentication: bool = False
    auth_token_expiry: int = 3600  # 1 hour in seconds
    max_auth_attempts: int = 3
    auth_lockout_duration: int = 300  # 5 minutes in seconds
    
    # Access control
    allowed_clients: List[str] = field(default_factory=list)
    blocked_clients: List[str] = field(default_factory=list)
    max_connections_per_client: int = 5
    
    # Security features
    enable_audit_logging: bool = True
    audit_log_file: str = "logs/security_audit.log"
    enable_intrusion_detection: bool = False
    
    def validate(self) -> List[str]:
        """Validate security configuration and return any errors."""
        errors = []
        
        if self.key_rotation_interval <= 0:
            errors.append("Key rotation interval must be positive")
        if self.auth_token_expiry <= 0:
            errors.append("Auth token expiry must be positive")
        if self.max_auth_attempts <= 0:
            errors.append("Max auth attempts must be positive")
        if self.auth_lockout_duration <= 0:
            errors.append("Auth lockout duration must be positive")
        if self.max_connections_per_client <= 0:
            errors.append("Max connections per client must be positive")
        
        # Check for conflicts between allowed and blocked clients
        allowed_set = set(self.allowed_clients)
        blocked_set = set(self.blocked_clients)
        conflicts = allowed_set & blocked_set
        if conflicts:
            errors.append(f"Clients cannot be both allowed and blocked: {conflicts}")
        
        return errors


@dataclass
class LoggingConfig:
    """Logging configuration."""
    # Basic logging settings
    log_level: LogLevel = LogLevel.INFO
    log_format: str = "%(asctime)s - %(name)s - %(levelname)s - %(message)s"
    date_format: str = "%Y-%m-%d %H:%M:%S"
    
    # File logging
    enable_file_logging: bool = True
    log_file_path: str = "logs/trixy.log"
    max_log_file_size: int = 10485760  # 10MB
    log_file_backup_count: int = 5
    
    # Console logging
    enable_console_logging: bool = True
    console_log_level: LogLevel = LogLevel.INFO
    
    # Specialized logging
    enable_event_logging: bool = True
    event_log_file: str = "logs/events.log"
    enable_performance_logging: bool = False
    performance_log_file: str = "logs/performance.log"
    
    # Debug mode settings
    debug_mode: bool = False
    verbose_errors: bool = False
    log_stack_traces: bool = False
    
    def validate(self) -> List[str]:
        """Validate logging configuration and return any errors."""
        errors = []
        
        if self.max_log_file_size <= 0:
            errors.append("Max log file size must be positive")
        if self.log_file_backup_count < 0:
            errors.append("Log file backup count must be non-negative")
        
        # Validate log file paths
        log_files = [
            self.log_file_path,
            self.event_log_file,
            self.performance_log_file
        ]
        
        for log_file in log_files:
            if not log_file:
                errors.append(f"Log file path cannot be empty: {log_file}")
        
        return errors


@dataclass
class ServerConfig:
    """Complete configuration for server mode."""
    # Basic settings
    mode: DeploymentMode = DeploymentMode.SERVER
    debug_mode: bool = False
    data_directory: str = "data"
    config_file: str = "config/server_config.json"
    
    # Component configurations
    network: NetworkConfig = field(default_factory=NetworkConfig)
    audio: AudioConfig = field(default_factory=AudioConfig)
    ml: MLConfig = field(default_factory=MLConfig)
    plugins: PluginConfig = field(default_factory=PluginConfig)
    security: SecurityConfig = field(default_factory=SecurityConfig)
    logging: LoggingConfig = field(default_factory=LoggingConfig)
    
    # Server-specific settings
    registration_mode_timeout: int = 60  # seconds
    max_satellites: int = 50
    satellite_heartbeat_timeout: int = 60  # seconds
    enable_web_interface: bool = False
    web_interface_port: int = 8080
    
    # Asset management
    asset_profile: str = "default"
    asset_cache_size: int = 100
    
    # Conversation management
    conversation_timeout: int = 300  # 5 minutes
    max_concurrent_conversations: int = 10
    
    def validate(self) -> List[str]:
        """Validate complete server configuration."""
        errors = []
        
        # Validate component configurations
        errors.extend(self.network.validate())
        errors.extend(self.audio.validate())
        errors.extend(self.ml.validate())
        errors.extend(self.plugins.validate())
        errors.extend(self.security.validate())
        errors.extend(self.logging.validate())
        
        # Validate server-specific settings
        if self.registration_mode_timeout <= 0:
            errors.append("Registration mode timeout must be positive")
        if self.max_satellites <= 0:
            errors.append("Max satellites must be positive")
        if self.satellite_heartbeat_timeout <= 0:
            errors.append("Satellite heartbeat timeout must be positive")
        if self.web_interface_port and not (1024 <= self.web_interface_port <= 65535):
            errors.append("Web interface port must be between 1024 and 65535")
        if self.conversation_timeout <= 0:
            errors.append("Conversation timeout must be positive")
        if self.max_concurrent_conversations <= 0:
            errors.append("Max concurrent conversations must be positive")
        if self.asset_cache_size <= 0:
            errors.append("Asset cache size must be positive")
        
        # Check for port conflicts with web interface
        if (self.enable_web_interface and 
            self.web_interface_port in [
                self.network.command_port,
                self.network.raw_audio_input_port,
                self.network.raw_audio_output_port,
                self.network.raw_music_output_port
            ]):
            errors.append("Web interface port conflicts with network ports")
        
        return errors
    
    def to_dict(self) -> Dict[str, Any]:
        """Convert configuration to dictionary for serialization."""
        return asdict(self)
    
    @classmethod
    def from_dict(cls, data: Dict[str, Any]) -> 'ServerConfig':
        """Create configuration from dictionary."""
        # Handle nested configurations
        if 'network' in data and isinstance(data['network'], dict):
            data['network'] = NetworkConfig(**data['network'])
        if 'audio' in data and isinstance(data['audio'], dict):
            data['audio'] = AudioConfig(**data['audio'])
        if 'ml' in data and isinstance(data['ml'], dict):
            data['ml'] = MLConfig(**data['ml'])
        if 'plugins' in data and isinstance(data['plugins'], dict):
            data['plugins'] = PluginConfig(**data['plugins'])
        if 'security' in data and isinstance(data['security'], dict):
            data['security'] = SecurityConfig(**data['security'])
        if 'logging' in data and isinstance(data['logging'], dict):
            data['logging'] = LoggingConfig(**data['logging'])
        
        # Handle enums
        if 'mode' in data and isinstance(data['mode'], str):
            data['mode'] = DeploymentMode(data['mode'])
        
        return cls(**data)


@dataclass
class ClientConfig:
    """Complete configuration for client/satellite mode."""
    # Basic settings
    mode: DeploymentMode = DeploymentMode.CLIENT
    debug_mode: bool = False
    data_directory: str = "data"
    config_file: str = "config/client_config.json"
    
    # Component configurations
    satellite: SatelliteConfig = field(default_factory=SatelliteConfig)
    audio: AudioConfig = field(default_factory=AudioConfig)
    ml: MLConfig = field(default_factory=MLConfig)
    logging: LoggingConfig = field(default_factory=LoggingConfig)
    
    # Client-specific settings
    enable_local_processing: bool = True
    local_model_cache_size: int = 50
    audio_buffer_size: int = 8192
    
    # Status reporting
    status_report_interval: int = 30  # seconds
    health_check_interval: int = 10  # seconds
    
    def validate(self) -> List[str]:
        """Validate complete client configuration."""
        errors = []
        
        # Validate component configurations
        errors.extend(self.satellite.validate())
        errors.extend(self.audio.validate())
        errors.extend(self.ml.validate())
        errors.extend(self.logging.validate())
        
        # Validate client-specific settings
        if self.local_model_cache_size <= 0:
            errors.append("Local model cache size must be positive")
        if self.audio_buffer_size <= 0:
            errors.append("Audio buffer size must be positive")
        if self.status_report_interval <= 0:
            errors.append("Status report interval must be positive")
        if self.health_check_interval <= 0:
            errors.append("Health check interval must be positive")
        
        return errors
    
    def to_dict(self) -> Dict[str, Any]:
        """Convert configuration to dictionary for serialization."""
        return asdict(self)
    
    @classmethod
    def from_dict(cls, data: Dict[str, Any]) -> 'ClientConfig':
        """Create configuration from dictionary."""
        # Handle nested configurations
        if 'satellite' in data and isinstance(data['satellite'], dict):
            data['satellite'] = SatelliteConfig(**data['satellite'])
        if 'audio' in data and isinstance(data['audio'], dict):
            data['audio'] = AudioConfig(**data['audio'])
        if 'ml' in data and isinstance(data['ml'], dict):
            data['ml'] = MLConfig(**data['ml'])
        if 'logging' in data and isinstance(data['logging'], dict):
            data['logging'] = LoggingConfig(**data['logging'])
        
        # Handle enums
        if 'mode' in data and isinstance(data['mode'], str):
            data['mode'] = DeploymentMode(data['mode'])
        
        return cls(**data)


@dataclass
class StandaloneConfig:
    """Complete configuration for standalone mode."""
    # Basic settings
    mode: DeploymentMode = DeploymentMode.STANDALONE
    debug_mode: bool = False
    data_directory: str = "data"
    config_file: str = "config/standalone_config.json"
    
    # Component configurations (full server capabilities)
    network: NetworkConfig = field(default_factory=NetworkConfig)
    audio: AudioConfig = field(default_factory=AudioConfig)
    ml: MLConfig = field(default_factory=MLConfig)
    plugins: PluginConfig = field(default_factory=PluginConfig)
    security: SecurityConfig = field(default_factory=SecurityConfig)
    logging: LoggingConfig = field(default_factory=LoggingConfig)
    
    # Standalone-specific settings
    enable_server_sync: bool = False
    sync_server_host: Optional[str] = None
    sync_server_port: Optional[int] = None
    sync_interval: int = 300  # 5 minutes
    
    # Local capabilities (same as server but with defaults for standalone)
    registration_mode_timeout: int = 60
    max_satellites: int = 10  # Lower default for standalone
    satellite_heartbeat_timeout: int = 60
    enable_web_interface: bool = True  # More likely to be used in standalone
    web_interface_port: int = 8080
    
    # Asset management
    asset_profile: str = "default"
    asset_cache_size: int = 50  # Lower default for standalone
    
    # Conversation management
    conversation_timeout: int = 300
    max_concurrent_conversations: int = 5  # Lower default for standalone
    
    def validate(self) -> List[str]:
        """Validate complete standalone configuration."""
        errors = []
        
        # Validate component configurations
        errors.extend(self.network.validate())
        errors.extend(self.audio.validate())
        errors.extend(self.ml.validate())
        errors.extend(self.plugins.validate())
        errors.extend(self.security.validate())
        errors.extend(self.logging.validate())
        
        # Validate standalone-specific settings
        if self.enable_server_sync:
            if not self.sync_server_host:
                errors.append("Sync server host must be specified when server sync is enabled")
            if not self.sync_server_port or not (1024 <= self.sync_server_port <= 65535):
                errors.append("Sync server port must be between 1024 and 65535 when server sync is enabled")
        
        if self.sync_interval <= 0:
            errors.append("Sync interval must be positive")
        if self.registration_mode_timeout <= 0:
            errors.append("Registration mode timeout must be positive")
        if self.max_satellites <= 0:
            errors.append("Max satellites must be positive")
        if self.satellite_heartbeat_timeout <= 0:
            errors.append("Satellite heartbeat timeout must be positive")
        if self.web_interface_port and not (1024 <= self.web_interface_port <= 65535):
            errors.append("Web interface port must be between 1024 and 65535")
        if self.conversation_timeout <= 0:
            errors.append("Conversation timeout must be positive")
        if self.max_concurrent_conversations <= 0:
            errors.append("Max concurrent conversations must be positive")
        if self.asset_cache_size <= 0:
            errors.append("Asset cache size must be positive")
        
        # Check for port conflicts
        network_ports = [
            self.network.command_port,
            self.network.raw_audio_input_port,
            self.network.raw_audio_output_port,
            self.network.raw_music_output_port
        ]
        
        if self.enable_web_interface and self.web_interface_port in network_ports:
            errors.append("Web interface port conflicts with network ports")
        
        if self.enable_server_sync and self.sync_server_port in network_ports:
            errors.append("Sync server port conflicts with network ports")
        
        return errors
    
    def to_dict(self) -> Dict[str, Any]:
        """Convert configuration to dictionary for serialization."""
        return asdict(self)
    
    @classmethod
    def from_dict(cls, data: Dict[str, Any]) -> 'StandaloneConfig':
        """Create configuration from dictionary."""
        # Handle nested configurations
        if 'network' in data and isinstance(data['network'], dict):
            data['network'] = NetworkConfig(**data['network'])
        if 'audio' in data and isinstance(data['audio'], dict):
            data['audio'] = AudioConfig(**data['audio'])
        if 'ml' in data and isinstance(data['ml'], dict):
            data['ml'] = MLConfig(**data['ml'])
        if 'plugins' in data and isinstance(data['plugins'], dict):
            data['plugins'] = PluginConfig(**data['plugins'])
        if 'security' in data and isinstance(data['security'], dict):
            data['security'] = SecurityConfig(**data['security'])
        if 'logging' in data and isinstance(data['logging'], dict):
            data['logging'] = LoggingConfig(**data['logging'])
        
        # Handle enums
        if 'mode' in data and isinstance(data['mode'], str):
            data['mode'] = DeploymentMode(data['mode'])
        
        return cls(**data)


# Type aliases for convenience
ConfigType = Union[ServerConfig, ClientConfig, StandaloneConfig]
ConfigDict = Dict[str, Any]

# Configuration class mapping
CONFIG_CLASSES = {
    DeploymentMode.SERVER: ServerConfig,
    DeploymentMode.CLIENT: ClientConfig,
    DeploymentMode.STANDALONE: StandaloneConfig,
}


def get_config_class(mode: Union[str, DeploymentMode]) -> type:
    """Get the appropriate configuration class for a deployment mode."""
    if isinstance(mode, str):
        mode = DeploymentMode(mode.lower())
    return CONFIG_CLASSES[mode]


def create_default_config(mode: Union[str, DeploymentMode]) -> ConfigType:
    """Create a default configuration for the specified mode."""
    config_class = get_config_class(mode)
    return config_class()


def merge_configs(base_config: ConfigType, override_config: Dict[str, Any]) -> ConfigType:
    """Merge override configuration into base configuration."""
    base_dict = base_config.to_dict()
    
    # Deep merge the dictionaries
    def deep_merge(base: Dict, override: Dict) -> Dict:
        result = base.copy()
        for key, value in override.items():
            if key in result and isinstance(result[key], dict) and isinstance(value, dict):
                result[key] = deep_merge(result[key], value)
            else:
                result[key] = value
        return result
    
    merged_dict = deep_merge(base_dict, override_config)
    return base_config.__class__.from_dict(merged_dict)