#!/usr/bin/env python3
import argparse
import csv
from datetime import datetime
import pyshark

def parse_args():
    parser = argparse.ArgumentParser()
    parser.add_argument('--csv', required=True, help='Input speedtest CSV')
    parser.add_argument('--pcapng', required=True, help='Kismet-generated .pcapng file')
    parser.add_argument('--output', required=True, help='Output enriched CSV')
    return parser.parse_args()

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

def analyze_pcap(pcapng_path, start_ts, end_ts):
    # Placeholder: Logic will be added for:
    # - ClientsOnAP
    # - ClientsOnChannel
    # - APsOnChannel
    # - CongestionScore
    # - AvgAPSignal
    # - StrongestAPSignal
    # - UnlinkedDevices
    return 0, 0, 0, None, None, None, 0

def main():
    args = parse_args()
    with open(args.csv, newline='') as infile, open(args.output, 'w', newline='', encoding='utf-8') as outfile:
        reader = csv.DictReader(infile)
        fieldnames = reader.fieldnames + [
            'ClientsOnAP', 'ClientsOnChannel', 'APsOnChannel', 'CongestionScore',
            'AvgAPSignal', 'StrongestAPSignal', 'UnlinkedDevices'
        ]
        writer = csv.DictWriter(outfile, fieldnames=fieldnames)
        writer.writeheader()

        for row in reader:
            tstart = convert_timestamp_to_epoch(row.get("StartTimestamp"))
            tend = convert_timestamp_to_epoch(row.get("EndTimestamp"))

            if not tstart or not tend:
                writer.writerow(row)
                continue

            clients_ap, clients_chan, aps_chan, congestion, avg_signal, strongest_signal, unlinked = analyze_pcap(args.pcapng, tstart, tend)

            row.update({
                'ClientsOnAP': clients_ap,
                'ClientsOnChannel': clients_chan,
                'APsOnChannel': aps_chan,
                'CongestionScore': congestion,
                'AvgAPSignal': avg_signal,
                'StrongestAPSignal': strongest_signal,
                'UnlinkedDevices': unlinked
            })

            writer.writerow(row)

    print(f"[+] Enrichment complete: {args.output}")

if __name__ == "__main__":
    main()