#!/usr/bin/env python3
"""
Genesis CDP Mastery Skill
==========================
Continuous Development Protocol (CDP) execution module.
Ensures session persistence, heartbeat monitoring, and state-based development.
"""

import os
import json
import time
from datetime import datetime
from pathlib import Path
from typing import Dict, Any, List, Optional

class CDPMasterySkill:
    """
    Expertise in maintaining system state and continuous development loops.
    """
    
    def __init__(self, workspace_root: str = r"E:\genesis-system"):
        self.root = Path(workspace_root)
        self.state_file = self.root / "session_state.json"
        self.log_file = self.root / "progress_log.txt"
        self.todo_file = self.root / "todo.md"
        self.recovery_flag = self.root / "RECOVERY_NEEDED.flag"
        
        print(f"[OK] CDP Mastery Skill Initialized at {self.root}")

    def update_heartbeat(self):
        """Updates the last_heartbeat timestamp in session_state.json."""
        if not self.state_file.exists():
            print("[WARN] session_state.json not found. Initializing new state.")
            self.initialize_session("new_session")
            
        try:
            with open(self.state_file, 'r') as f:
                state = json.load(f)
            
            state['last_heartbeat'] = datetime.now().isoformat()
            
            with open(self.state_file, 'w') as f:
                json.dump(state, f, indent=2)
            # print(f"[CDP] Heartbeat updated: {state['last_heartbeat']}")
        except Exception as e:
            print(f"[ERROR] Failed to update heartbeat: {e}")

    def log_progress(self, message: str):
        """Appends a timestamped message to progress_log.txt."""
        timestamp = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
        log_entry = f"[{timestamp}] {message}\n"
        
        try:
            with open(self.log_file, 'a') as f:
                f.write(log_entry)
            print(f"[CDP] Progress logged: {message}")
        except Exception as e:
            print(f"[ERROR] Failed to log progress: {e}")

    def initialize_session(self, session_id: str, task: str = "Resumed Task"):
        """Initializes or resets a session state."""
        state = {
            "session_id": session_id,
            "started_at": datetime.now().isoformat(),
            "last_heartbeat": datetime.now().isoformat(),
            "current_task": task,
            "context_files": [],
            "active_branches": ["main"],
            "uncommitted_changes": True,
            "health_status": "ACTIVE",
            "error_count": 0,
            "last_error": None,
            "recovery_attempted": False
        }
        
        with open(self.state_file, 'w') as f:
            json.dump(state, f, indent=2)
        self.log_progress(f"SESSION START: {session_id} - {task}")

    def check_recovery(self) -> bool:
        """Checks if a recovery flag exists and returns True if recovery is needed."""
        if self.recovery_flag.exists():
            print("[ALERT] RECOVERY_NEEDED.flag detected!")
            return True
        return False

    def signal_completion(self):
        """Sets health_status to TERMINATED to indicate a clean exit."""
        if self.state_file.exists():
            with open(self.state_file, 'r') as f:
                state = json.load(f)
            
            state['health_status'] = "TERMINATED"
            state['last_heartbeat'] = datetime.now().isoformat()
            
            with open(self.state_file, 'w') as f:
                json.dump(state, f, indent=2)
            self.log_progress("SESSION END: Clean termination.")

if __name__ == "__main__":
    cdp = CDPMasterySkill()
    cdp.update_heartbeat()
    cdp.log_progress("CDP Skill Self-Test Successful.")