from datetime import datetime
from .constants import FREQ_LOOKUP_TABLE, CHANNEL_LOOKUP_TABLE

def get_channel_from_freq(freq):
    return FREQ_LOOKUP_TABLE.get(freq)

def get_freq_details(channel):
    return CHANNEL_LOOKUP_TABLE.get(channel)

def convert_timestamp_to_epoch(ts_string):
    try:
        return int(datetime.fromisoformat(ts_string.replace("Z", "+00:00")).timestamp())
    except Exception as e:
        print(f"[!] Failed to parse timestamp: {ts_string}")
        return None