#!/usr/bin/env python3
"""Parallel scan all channel IDs, write /tmp/chans.json."""
import sys, json
from pathlib import Path
from concurrent.futures import ThreadPoolExecutor, as_completed
sys.path.insert(0, str(Path(__file__).resolve().parent))
import newapi_client as n

def scan(cid):
    try:
        c = n.get_channel(cid)
        return c if c and c.get("id") else None
    except Exception:
        return None

chans = []
with ThreadPoolExecutor(max_workers=24) as ex:
    futs = {ex.submit(scan, cid): cid for cid in range(1, 850)}
    for f in as_completed(futs):
        r = f.result()
        if r: chans.append(r)
chans.sort(key=lambda c: c["id"])
json.dump(chans, open("/tmp/chans.json", "w"))
import collections
print("total:", len(chans), "status:", dict(collections.Counter(c.get("status") for c in chans)))