from typing import Dict, List, Any
from scapy.all import Packet

from .base import FrameTypeInterface


class Ch10TimeStats(FrameTypeInterface):
    """Chapter 10 Time Data Statistics"""
    def __init__(self):
        super().__init__()
        self.name = "Chapter 10 Time"
        self.count = 0
        self.bytes = 0
        self.first_time = None
        self.last_time = None
        self.time_sources = set()
        self.time_format_changes = 0
        self.leap_second_events = 0
        self.time_discontinuities = 0
        self.max_time_delta = 0
    
    def add(self, timestamp: float, size: int, packet: Packet):
        self.count += 1
        self.bytes += size
        if self.first_time is None:
            self.first_time = timestamp
        self.last_time = timestamp
        
        # In real implementation, decode time packets
    
    def get_summary_dict(self) -> Dict[str, Any]:
        duration = (self.last_time or 0) - (self.first_time or 0)
        return {
            'Pkts': self.count,
            'Bytes': self.bytes,
            'Time Sources': len(self.time_sources),
            'Format Changes': self.time_format_changes,
            'Leap Seconds': self.leap_second_events,
            'Discontinuities': self.time_discontinuities,
            'Max Delta': round(self.max_time_delta, 6)
        }
    
    def get_column_definitions(self) -> List[tuple]:
        return [
            ('Pkts', 'd'),
            ('Bytes', 'd'),
            ('Time Sources', 'd'),
            ('Format Changes', 'd'),
            ('Leap Seconds', 'd'),
            ('Discontinuities', 'd'),
            ('Max Delta', '.6f')
        ]