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import os
import boto3
import json
import requests
import random
from dotenv import load_dotenv
from datetime import datetime, timezone
import yt_dlp
import time
load_dotenv()
ACCOUNT_ID = os.getenv("R2_ACCOUNT_ID")
ACCESS_KEY = os.getenv("R2_ACCESS_KEY")
SECRET_KEY = os.getenv("R2_SECRET_KEY")
BUCKET = os.getenv("R2_BUCKET")
API_URL = os.getenv("API_URL")
HEARDLE_SALT = (
os.getenv("VITE_HEARDLE_SALT")
or os.getenv("OBFUSCATION_KEY")
)
NTFY_URL = os.getenv("NTFY_URL")
NTFY_TOKEN = os.getenv("NTFY_TOKEN")
def send_notification(message: str):
if not NTFY_URL or not NTFY_TOKEN:
return
requests.post(
NTFY_URL,
data=message.encode(encoding='utf-8'),
headers={"Authorization": f"Bearer {NTFY_TOKEN}"},
)
def xor_buffer(data: bytes, key: bytes) -> bytes:
return bytes(b ^ key[i % len(key)] for i, b in enumerate(data))
def get_obfuscation_key(date: str) -> bytes:
if not HEARDLE_SALT:
raise ValueError(
"Missing HEARDLE salt. Set VITE_HEARDLE_SALT (preferred) or OBFUSCATION_KEY."
)
return (HEARDLE_SALT + date).encode("utf-8")
def delete_file(file_path):
if os.path.exists(file_path):
os.remove(file_path)
return True
return False
def decode_data(hex_data: str, date: str):
encrypted = bytes.fromhex(hex_data)
key = get_obfuscation_key(date)
decrypted = xor_buffer(encrypted, key)
return json.loads(decrypted.decode("utf-8"))
def fetch_daily() -> dict:
if not API_URL:
raise ValueError("Missing API_URL in environment.")
url = f"{API_URL}/today"
response = requests.get(url, timeout=15)
response.raise_for_status()
payload = response.json()
if "date" not in payload or "data" not in payload:
raise ValueError(f"Unexpected /today response shape: {payload}")
return payload
def download_random_segment_mp3(youtube_id: str, output_file="today.mp3") -> str:
url = f"https://www.youtube.com/watch?v={youtube_id}"
with yt_dlp.YoutubeDL({"quiet": True}) as ydl:
info = ydl.extract_info(url, download=False)
duration = info.get("duration", 60)
start = 0 if duration <= 17 else random.randint(0, duration - 17)
ydl_opts = {
"format": "bestaudio/best",
"outtmpl": output_file.replace(".mp3", ".%(ext)s"),
"quiet": True,
"postprocessors": [{
"key": "FFmpegExtractAudio",
"preferredcodec": "mp3",
"preferredquality": "192",
}],
"download_ranges": lambda info, _: [
{"start_time": start, "end_time": start + 17}
],
"force_keyframes_at_cuts": True,
"overwrites": True,
"nopart": True,
}
with yt_dlp.YoutubeDL(ydl_opts) as ydl:
ydl.download([url])
return output_file
def upload_to_r2(file_path: str, object_key: str):
s3 = boto3.client(
"s3",
endpoint_url=f"https://{ACCOUNT_ID}.r2.cloudflarestorage.com",
aws_access_key_id=ACCESS_KEY,
aws_secret_access_key=SECRET_KEY,
region_name="auto",
)
s3.upload_file(file_path, BUCKET, object_key)
def write_json(file_path, data):
with open(file_path, "w", encoding="utf-8") as f:
json.dump(data, f, indent=4, ensure_ascii=False)
def read_json(file_path, default=None):
if default is None:
default = {}
if not os.path.exists(file_path):
with open(file_path, "w", encoding="utf-8") as f:
json.dump(default, f, indent=4, ensure_ascii=False)
return default
try:
with open(file_path, "r", encoding="utf-8") as f:
return json.load(f)
except json.JSONDecodeError:
with open(file_path, "w", encoding="utf-8") as f:
json.dump(default, f, indent=4, ensure_ascii=False)
return default
def main():
new_data = False
daily_data = fetch_daily()
attempt = 0
while not new_data:
dumped_data = read_json("save.json")
if dumped_data == daily_data:
attempt += 1
print(f"Server still returning old data, waiting... {attempt} ")
time.sleep(5)
else:
new_data = True
daily_data = fetch_daily()
data = decode_data(daily_data["data"], daily_data["date"])
youtube_id = data["youtubeId"]
try:
clip_path = download_random_segment_mp3(youtube_id)
except:
print(f"Failed to download clip for {youtube_id}")
send_notification(f"K-HEARDLE: Failed to download clip for {youtube_id}")
return
date = daily_data["date"]
try:
upload_to_r2(clip_path, f"kheardle/{date}.mp3")
delete_file(clip_path)
except:
print(f"Failed to upload clip for {date}")
send_notification(f"K-HEARDLE: Failed to upload clip for {date}")
return
write_json("save.json", daily_data)
send_notification(f"K-HEARDLE: Successfully generated daily playlist for {date}")
if __name__ == "__main__":
main()
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