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"""
Feature Flags System
Allows dynamic toggling of application modules and features
"""
from typing import Dict, Any
import json
from pathlib import Path
from datetime import datetime
import logging
logger = logging.getLogger(__name__)
class FeatureFlagManager:
"""Manage application feature flags"""
DEFAULT_FLAGS = {
"enableWhaleTracking": True,
"enableMarketOverview": True,
"enableFearGreedIndex": True,
"enableNewsFeed": True,
"enableSentimentAnalysis": True,
"enableMlPredictions": False, # Disabled by default (requires HF setup)
"enableProxyAutoMode": True,
"enableDefiProtocols": True,
"enableTrendingCoins": True,
"enableGlobalStats": True,
"enableProviderRotation": True,
"enableWebSocketStreaming": True,
"enableDatabaseLogging": True,
"enableRealTimeAlerts": False, # New feature - not yet implemented
"enableAdvancedCharts": True,
"enableExportFeatures": True,
"enableCustomProviders": True,
"enablePoolManagement": True,
"enableHFIntegration": True,
}
def __init__(self, storage_path: str = "data/feature_flags.json"):
"""
Initialize feature flag manager
Args:
storage_path: Path to persist feature flags
"""
self.storage_path = Path(storage_path)
self.flags = self.DEFAULT_FLAGS.copy()
self.load_flags()
def load_flags(self):
"""Load feature flags from storage"""
try:
if self.storage_path.exists():
with open(self.storage_path, 'r', encoding='utf-8') as f:
saved_flags = json.load(f)
# Merge saved flags with defaults (in case new flags were added)
self.flags.update(saved_flags.get('flags', {}))
logger.info(f"Loaded feature flags from {self.storage_path}")
else:
# Create storage directory if it doesn't exist
self.storage_path.parent.mkdir(parents=True, exist_ok=True)
self.save_flags()
logger.info("Initialized default feature flags")
except Exception as e:
logger.error(f"Error loading feature flags: {e}")
self.flags = self.DEFAULT_FLAGS.copy()
def save_flags(self):
"""Save feature flags to storage"""
try:
self.storage_path.parent.mkdir(parents=True, exist_ok=True)
data = {
'flags': self.flags,
'last_updated': datetime.now().isoformat()
}
with open(self.storage_path, 'w', encoding='utf-8') as f:
json.dump(data, f, indent=2)
logger.info("Feature flags saved successfully")
except Exception as e:
logger.error(f"Error saving feature flags: {e}")
def get_all_flags(self) -> Dict[str, bool]:
"""Get all feature flags"""
return self.flags.copy()
def get_flag(self, flag_name: str) -> bool:
"""
Get a specific feature flag value
Args:
flag_name: Name of the flag
Returns:
bool: Flag value (defaults to False if not found)
"""
return self.flags.get(flag_name, False)
def set_flag(self, flag_name: str, value: bool) -> bool:
"""
Set a feature flag value
Args:
flag_name: Name of the flag
value: New value (True/False)
Returns:
bool: Success status
"""
try:
self.flags[flag_name] = bool(value)
self.save_flags()
logger.info(f"Feature flag '{flag_name}' set to {value}")
return True
except Exception as e:
logger.error(f"Error setting feature flag: {e}")
return False
def update_flags(self, updates: Dict[str, bool]) -> bool:
"""
Update multiple flags at once
Args:
updates: Dictionary of flag name -> value pairs
Returns:
bool: Success status
"""
try:
for flag_name, value in updates.items():
self.flags[flag_name] = bool(value)
self.save_flags()
logger.info(f"Updated {len(updates)} feature flags")
return True
except Exception as e:
logger.error(f"Error updating feature flags: {e}")
return False
def reset_to_defaults(self) -> bool:
"""Reset all flags to default values"""
try:
self.flags = self.DEFAULT_FLAGS.copy()
self.save_flags()
logger.info("Feature flags reset to defaults")
return True
except Exception as e:
logger.error(f"Error resetting feature flags: {e}")
return False
def is_enabled(self, flag_name: str) -> bool:
"""
Check if a feature is enabled (alias for get_flag)
Args:
flag_name: Name of the flag
Returns:
bool: True if enabled, False otherwise
"""
return self.get_flag(flag_name)
def get_enabled_features(self) -> Dict[str, bool]:
"""Get only enabled features"""
return {k: v for k, v in self.flags.items() if v is True}
def get_disabled_features(self) -> Dict[str, bool]:
"""Get only disabled features"""
return {k: v for k, v in self.flags.items() if v is False}
def get_flag_count(self) -> Dict[str, int]:
"""Get count of enabled/disabled flags"""
enabled = sum(1 for v in self.flags.values() if v)
disabled = len(self.flags) - enabled
return {
'total': len(self.flags),
'enabled': enabled,
'disabled': disabled
}
def get_feature_info(self) -> Dict[str, Any]:
"""Get comprehensive feature flag information"""
counts = self.get_flag_count()
return {
'flags': self.flags,
'counts': counts,
'enabled_features': list(self.get_enabled_features().keys()),
'disabled_features': list(self.get_disabled_features().keys()),
'storage_path': str(self.storage_path),
'last_loaded': datetime.now().isoformat()
}
# Global instance
feature_flags = FeatureFlagManager()
# Convenience functions
def is_feature_enabled(flag_name: str) -> bool:
"""Check if a feature is enabled"""
return feature_flags.is_enabled(flag_name)
def get_all_feature_flags() -> Dict[str, bool]:
"""Get all feature flags"""
return feature_flags.get_all_flags()
def set_feature_flag(flag_name: str, value: bool) -> bool:
"""Set a feature flag"""
return feature_flags.set_flag(flag_name, value)
def update_feature_flags(updates: Dict[str, bool]) -> bool:
"""Update multiple feature flags"""
return feature_flags.update_flags(updates)
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