#!/usr/bin/env python3
"""Complete exposedgays.com DNS: CF zone + tunnel CNAME + GoDaddy NS delegation."""
import json
import re
import time
import urllib.error
import urllib.request
import paramiko

PASS = "Bbt9115xty9176!"
DOMAIN = "exposedgays.com"
ACCOUNT = "2599c23bbb1255dbb73e8d34b4115fda"
TUNNEL_CNAME = "03079a26-f14c-4622-b463-ba54a24f7472.cfargotunnel.com"
CF = "https://api.cloudflare.com/client/v4"
GD = "https://api.godaddy.com/v1"
GODADDY_KEY = "2wYVpc3VT4_Gi9AsNqzJ6BtSfNz6nLDuo"
GODADDY_SECRET = "NvC3qexGAU7Rd5QExUTH6z"


def load_cf_token():
    c = paramiko.SSHClient()
    c.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    c.connect("10.10.0.1", username="admin", password=PASS, timeout=15)
    _, o, e = c.exec_command("cat /usr/local/etc/wan-dns-failover.env", timeout=30)
    o.channel.recv_exit_status()
    text = (o.read() + e.read()).decode()
    c.close()
    return re.search(r"CLOUDFLARE_API_TOKEN=([^\s\"']+)", text).group(1)


def cf(tok, path, method="GET", body=None):
    req = urllib.request.Request(
        CF + path,
        data=json.dumps(body).encode() if body is not None else None,
        method=method,
        headers={"Authorization": f"Bearer {tok}", "Content-Type": "application/json"},
    )
    try:
        with urllib.request.urlopen(req, timeout=45) as r:
            return json.load(r)
    except urllib.error.HTTPError as e:
        return json.loads(e.read().decode())


def gd(path, method="GET", body=None):
    req = urllib.request.Request(
        GD + path,
        data=json.dumps(body).encode() if body is not None else None,
        method=method,
        headers={
            "Authorization": f"sso-key {GODADDY_KEY}:{GODADDY_SECRET}",
            "Content-Type": "application/json",
            "Accept": "application/json",
        },
    )
    try:
        with urllib.request.urlopen(req, timeout=45) as r:
            raw = r.read().decode()
            return r.status, json.loads(raw) if raw else {}
    except urllib.error.HTTPError as e:
        raw = e.read().decode()
        try:
            return e.code, json.loads(raw)
        except Exception:
            return e.code, {"raw": raw[:500]}


def upsert_tunnel_cnames(tok, zid):
    records = cf(tok, f"/zones/{zid}/dns_records?per_page=100").get("result", [])
    for name in [DOMAIN, f"www.{DOMAIN}"]:
        body = {"type": "CNAME", "name": name, "content": TUNNEL_CNAME, "ttl": 1, "proxied": True}
        existing = next(
            (r for r in records if r["name"] == name and r["type"] in ("A", "CNAME", "AAAA")),
            None,
        )
        if existing:
            res = cf(tok, f"/zones/{zid}/dns_records/{existing['id']}", "PATCH", body)
            action = "PATCH"
        else:
            res = cf(tok, f"/zones/{zid}/dns_records", "POST", body)
            action = "POST"
        print(f"  {action} {name}: success={res.get('success')} errors={res.get('errors')}")


def main():
    tok = load_cf_token()

    zone = None
    z = cf(tok, f"/zones?name={DOMAIN}")
    if z.get("result"):
        zone = z["result"][0]
        print(f"Found zone {zone['id']} status={zone['status']}")
    else:
        created = cf(
            tok,
            "/zones",
            "POST",
            {"name": DOMAIN, "account": {"id": ACCOUNT}, "type": "full", "jump_start": False},
        )
        print("Create zone:", created.get("success"), created.get("errors"))
        if created.get("success"):
            zone = created["result"]

    if not zone:
        print("BLOCKED: exposedgays.com not in Cloudflare and token lacks zone.create")
        print("Add zone at https://dash.cloudflare.com then re-run this script")
        return 1

    zid = zone["id"]
    nameservers = zone.get("name_servers", [])
    print("Nameservers:", nameservers)

    print("Setting Cloudflare tunnel CNAME records...")
    upsert_tunnel_cnames(tok, zid)

    if nameservers:
        print("Updating GoDaddy nameservers...")
        code, res = gd(
            f"/domains/{DOMAIN}",
            "PATCH",
            {"nameServers": nameservers},
        )
        print(f"GoDaddy NS PATCH HTTP {code}: {res}")

    time.sleep(10)
    c = paramiko.SSHClient()
    c.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    c.connect("10.10.0.10", username="localadministrator", password=PASS, timeout=30)
    for cmd in [
        f"dig @1.1.1.1 {DOMAIN} NS +short",
        f"dig @1.1.1.1 www.{DOMAIN} A +short",
        f"curl -sSI https://www.{DOMAIN}/ | head -8",
        f"curl -sSL https://www.{DOMAIN}/ | head -c 250",
    ]:
        print(f"\n$ {cmd}")
        _, o, e = c.exec_command(cmd, timeout=30)
        o.channel.recv_exit_status()
        print((o.read() + e.read()).decode(errors="replace"))
    c.close()
    return 0


if __name__ == "__main__":
    raise SystemExit(main())