#!/usr/bin/env python3
import os, socket, json
from datetime import datetime

try:
    import yaml
except Exception:
    yaml = None

CFG = os.environ.get("CENTRAL_STACK_CFG", "/data/adaptai/secrets/dataops/central_stack.yaml")

def tcp(host, port, timeout=2.0):
    try:
        with socket.create_connection((host, port), timeout=timeout):
            return True, None
    except Exception as e:
        return False, str(e)

def load_cfg(path):
    if yaml:
        with open(path) as f:
            return yaml.safe_load(f)
    # minimal fallback for k:v
    data = {}
    with open(path) as f:
        for ln in f:
            ln = ln.strip()
            if not ln or ln.startswith('#'): continue
            if ':' in ln:
                k,v = ln.split(':',1)
                data[k.strip()] = v.strip()
    return data

def main():
    if not os.path.exists(CFG):
        raise SystemExit(f"Config not found: {CFG}")
    cfg = load_cfg(CFG)

    checks = []
    def add(name, host, ports):
        for p in ports:
            ok, err = tcp(host, p)
            checks.append({"name": name, "host": host, "port": p, "ok": ok, "error": err})

    # expected keys in cfg
    if 'central_host' in cfg:
        host = cfg['central_host']
    else:
        host = '172.17.0.3'

    add('qdrant-http', cfg.get('qdrant_host', host), [cfg.get('qdrant_http', 17000)])
    add('qdrant-grpc', cfg.get('qdrant_host', host), [cfg.get('qdrant_grpc', 17001)])
    add('gremlin', cfg.get('gremlin_host', host), [cfg.get('gremlin_port', 17002)])
    add('dragonfly', cfg.get('dragonfly_host', host), cfg.get('dragonfly_ports', [18000,18001,18002]))
    add('redis-cluster', cfg.get('redis_host', host), cfg.get('redis_ports', [18010,18011,18012]))
    add('etcd', cfg.get('etcd_host', host), [cfg.get('etcd_client', 2379)])
    add('minio', cfg.get('minio_host', host), [cfg.get('minio_api', 9000), cfg.get('minio_console', 9001)])
    add('pulsar', cfg.get('pulsar_host', host), [cfg.get('pulsar_bin', 6650), cfg.get('pulsar_http', 8080)])
    add('postgres', cfg.get('postgres_host', host), [cfg.get('postgres_port', 5432)])
    add('milvus', cfg.get('milvus_host', host), [cfg.get('milvus_grpc', 19530), cfg.get('milvus_http', 9091)])
    add('opensearch', cfg.get('opensearch_host', host), [cfg.get('opensearch_http', 9200)])
    add('meilisearch', cfg.get('meilisearch_host', host), [cfg.get('meilisearch_http', 7700)])
    add('influxdb', cfg.get('influxdb_host', host), [cfg.get('influxdb_http', 8086)])
    add('ipfs', cfg.get('ipfs_host', host), [cfg.get('ipfs_api', 5001), cfg.get('ipfs_gateway', 8080)])

    out = {
        "ts": datetime.utcnow().isoformat() + 'Z',
        "host": host,
        "results": checks,
    }
    print(json.dumps(out, indent=2))

if __name__ == '__main__':
    main()