Seedance 2-0

import json
import os
import time

import requests

# Get your CometAPI key from https://www.cometapi.com/console/token, and paste it here
COMETAPI_KEY = os.environ.get("COMETAPI_KEY") or "<YOUR_COMETAPI_KEY>"
BASE_URL = "https://api.cometapi.com"
OUTPUT_DIR = "./output"
POLL_INTERVAL_SECONDS = 10
RETRY_DELAY_SECONDS = 5
MAX_CREATE_ATTEMPTS = 5
MAX_QUERY_ATTEMPTS = 3
TERMINAL_STATUSES = {"success", "completed", "failed", "error"}
SUCCESS_STATUSES = {"success", "completed"}

def is_progress_complete(progress):
    if isinstance(progress, int):
        return progress >= 100
    if isinstance(progress, float):
        return progress >= 100
    if isinstance(progress, str):
        try:
            return float(progress.rstrip("%")) >= 100
        except ValueError:
            return False
    return False

def is_transient_status(status_code):
    return status_code == 429 or 500 <= status_code < 600

def create_task(files):
    for attempt in range(1, MAX_CREATE_ATTEMPTS + 1):
        response = requests.post(
            f"{BASE_URL}/v1/videos",
            headers=headers,
            files=files,
            timeout=30,
        )
        if response.ok:
            return response
        if not is_transient_status(response.status_code) or attempt == MAX_CREATE_ATTEMPTS:
            response.raise_for_status()
        print(f"Create request returned {response.status_code}, retrying...")
        time.sleep(RETRY_DELAY_SECONDS)

    raise SystemExit("Failed to create task.")

def get_task(task_id):
    for attempt in range(1, MAX_QUERY_ATTEMPTS + 1):
        response = requests.get(
            f"{BASE_URL}/v1/videos/{task_id}",
            headers=headers,
            timeout=15,
        )
        if response.ok:
            return response
        if not is_transient_status(response.status_code) or attempt == MAX_QUERY_ATTEMPTS:
            response.raise_for_status()
        print(f"Status request returned {response.status_code}, retrying...")
        time.sleep(RETRY_DELAY_SECONDS)

    raise SystemExit("Failed to query task.")

if COMETAPI_KEY == "<YOUR_COMETAPI_KEY>":
    print("Set COMETAPI_KEY before running this example.")
    raise SystemExit(0)

headers = {"Authorization": f"Bearer {COMETAPI_KEY}"}

create_response = create_task(
    {
        "prompt": (None, "A slow cinematic camera push across a coastal landscape at sunrise."),
        "model": (None, "doubao-seedance-2-0"),
        "seconds": (None, "5"),
        "size": (None, "16:9"),
    }
)
create_response.raise_for_status()
create_result = create_response.json()

task_id = create_result.get("id") or create_result.get("task_id")
if not task_id:
    print(json.dumps(create_result, indent=2))
    raise SystemExit("No task id returned.")

print(f"Task created: {task_id}")
print(f"Initial status: {create_result.get('status')}")

while True:
    task_response = get_task(task_id)
    task_response.raise_for_status()
    task = task_response.json()
    status = str(task.get("status") or "unknown")
    normalized_status = status.lower()
    progress = task.get("progress")
    should_try_download = normalized_status in SUCCESS_STATUSES or (
        normalized_status == "unknown" and is_progress_complete(progress)
    )

    print(f"Status: {status}, progress: {progress}")

    if should_try_download or normalized_status in TERMINAL_STATUSES:
        if should_try_download:
            video_url = task.get("video_url") or ""
            content_url = f"{BASE_URL}/v1/videos/{task_id}/content"
            output_path = os.path.join(OUTPUT_DIR, f"{task_id}.mp4")

            os.makedirs(OUTPUT_DIR, exist_ok=True)
            with requests.get(
                content_url,
                headers=headers,
                timeout=120,
                stream=True,
            ) as video_response:
                video_response.raise_for_status()
                with open(output_path, "wb") as output_file:
                    for chunk in video_response.iter_content(chunk_size=8192):
                        if chunk:
                            output_file.write(chunk)

            print(f"Video URL: {video_url}")
            print(f"Content endpoint: {content_url}")
            print(f"Saved to {output_path}")
            print(f"File size: {os.path.getsize(output_path)} bytes")
        else:
            print(json.dumps(task, indent=2))
            raise SystemExit(1)
        break

    time.sleep(POLL_INTERVAL_SECONDS)