#!/usr/bin/env python3
"""
Example: System Watchdog Service using ServiceBase
"""
import asyncio
from service_base import ServiceBase

class WatchdogService(ServiceBase):
    """
    Survival Stack Watchdog - 10s check interval
    """
    def __init__(self):
        super().__init__(
            name='watchdog',
            check_interval=10,  # Health check every 10s
            max_retries=5,
            notify_systemd=True
        )
        self.cat1_ok = True
        self.cat2_ok = True
        self.last_posture = 'APEX'
        
    async def run_cycle(self):
        """Main cycle - runs every 10s"""
        # Check all categories
        await self._check_cat1_invariants()
        await self._check_cat2_structural()
        await self._check_cat3_microstructure()
        await self._check_cat4_environmental()
        await self._check_cat5_capital()
        
        # Compute posture
        posture = self._compute_posture()
        if posture != self.last_posture:
            self.logger.warning(f"Posture change: {self.last_posture} -> {posture}")
            self.last_posture = posture
            
        # Write to Hazelcast
        await self._update_safety_ref(posture)
        
        # Sleep until next cycle
        await asyncio.sleep(10)
    
    async def _check_cat1_invariants(self):
        """Binary kill switches"""
        # Check HZ quorum, heartbeat
        pass
    
    async def _check_cat2_structural(self):
        """MC-Forewarner staleness"""
        pass
    
    async def _check_cat3_microstructure(self):
        """OB depth/fill quality"""
        pass
    
    async def _check_cat4_environmental(self):
        """DVOL spike"""
        pass
    
    async def _check_cat5_capital(self):
        """Drawdown check"""
        pass
    
    def _compute_posture(self) -> str:
        """Compute Rm and map to posture"""
        # Rm = Cat1 × Cat2 × Cat3 × Cat4 × Cat5
        # Posture: APEX/STALKER/TURTLE/HIBERNATE
        return 'APEX'
    
    async def _update_safety_ref(self, posture: str):
        """Update DOLPHIN_SAFETY AtomicReference"""
        pass
    
    async def health_check(self) -> bool:
        """Watchdog health check"""
        # If we're running, we're healthy
        return True

if __name__ == '__main__':
    service = WatchdogService()
    service.run()