BASE=https://api.nunchux.com

# 1. Submit
SUBMIT=$(curl -sS --fail-with-body "$BASE/v1/topaz/image/enhance" \
  -H "X-API-Key: $NUNCHUX_API_KEY" \
  -H "Content-Type: application/json" \
  -H "User-Agent: YourApp/1.0" \
  -d '{
    "model": "topaz-wonder-4",
    "image": "https://example.com/photo.jpg",
    "output_width": 3840,
    "output_height": 2160,
    "output_format": "png"
  }') || { echo "submit failed: $SUBMIT" >&2; exit 1; }
JOB=$(jq -er '.process_id' <<<"$SUBMIT") || { echo "no process_id in: $SUBMIT" >&2; exit 1; }

# 2. Poll until the status is terminal
DELAY=3
for _ in $(seq 1 90); do
  RESP=$(curl -sS "$BASE/v1/topaz/image/$JOB" \
    -H "X-API-Key: $NUNCHUX_API_KEY" \
    -H "User-Agent: YourApp/1.0")
  STATUS=$(jq -r '.status // ""' <<<"$RESP")
  case "$STATUS" in Completed|Failed|Cancelled) break ;; esac
  sleep "$DELAY"; DELAY=$(( DELAY * 2 > 30 ? 30 : DELAY * 2 ))
done

# 3. Check for failure
[ "$STATUS" = "Completed" ] || { echo "job $STATUS: $(jq -r '.error.message // "no error"' <<<"$RESP")" >&2; exit 1; }

# 4. Download
curl -sSL -o topaz.png "$(jq -r '.download_url' <<<"$RESP")"

# pip install requests
import os, time, requests

BASE = "https://api.nunchux.com"
HEADERS = {
    "X-API-Key": os.environ["NUNCHUX_API_KEY"],
    "User-Agent": "YourApp/1.0",
}

# 1. Submit
submit = requests.post(
    f"{BASE}/v1/topaz/image/enhance",
    headers=HEADERS,
    json={
        "model": "topaz-wonder-4",
        "image": "https://example.com/photo.jpg",
        "output_width": 3840,
        "output_height": 2160,
        "output_format": "png",
    },
)
if not submit.ok:
    raise RuntimeError(f"submit failed: HTTP {submit.status_code} {submit.text}")
job = submit.json()["process_id"]

# 2. Poll until the status is terminal
delay = 3
for _ in range(90):
    data = requests.get(f"{BASE}/v1/topaz/image/{job}", headers=HEADERS).json()
    status = data.get("status", "")
    if status in ("Completed", "Failed", "Cancelled"):
        break
    time.sleep(delay)
    delay = min(delay * 2, 30)
else:
    raise TimeoutError("Topaz job did not reach a terminal status")

# 3. Check for failure
if status != "Completed":
    raise RuntimeError(f"Topaz job {status}: {data.get('error')}")

# 4. Download
with requests.get(data["download_url"], stream=True, timeout=300) as r:
    r.raise_for_status()
    with open("topaz.png", "wb") as f:
        for chunk in r.iter_content(1 << 14):
            f.write(chunk)