Update discord_lnbits_bot.py
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@ -7,7 +7,7 @@ import requests
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import logging
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from datetime import datetime
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from dateutil.relativedelta import relativedelta
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from dotenv import load_dotenv
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import qrcode
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import discord
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from discord import File, Embed
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@ -18,6 +18,7 @@ import websockets
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from sqlalchemy import (
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create_engine, Column, String, Integer, DateTime, Text, Enum, ForeignKey
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)
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from sqlalchemy.dialects.postgresql import JSONB
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from sqlalchemy.ext.declarative import declarative_base
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from sqlalchemy.orm import sessionmaker, relationship
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@ -30,18 +31,16 @@ logging.basicConfig(
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)
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logger = logging.getLogger("discord_lnbits_bot")
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# ─── Load minimal .env & DB setup ─────────────────────────────────────────────
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load_dotenv() # for DATABASE_URL only
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# ─── DB Setup & Config Seeding ─────────────────────────────────────────────────
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DATABASE_URL = os.getenv("DATABASE_URL")
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if not DATABASE_URL:
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logger.critical("Environment variable DATABASE_URL is missing.")
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logger.critical("Missing DATABASE_URL in .env")
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exit(1)
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engine = create_engine(DATABASE_URL, future=True)
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SessionLocal = sessionmaker(bind=engine, expire_on_commit=False)
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Base = declarative_base()
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# ─── ORM Models ───────────────────────────────────────────────────────────────
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class Config(Base):
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__tablename__ = "config"
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key = Column(String, primary_key=True)
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@ -56,7 +55,10 @@ class Plan(Base):
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channel_id = Column(String(64), nullable=False)
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price_sats = Column(Integer, nullable=False)
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invoice_message = Column(Text, nullable=False)
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expiry_type = Column(Enum("fixed_date","rolling_days","calendar_month", name="expiry_type"), nullable=False)
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expiry_type = Column(
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Enum("fixed_date", "rolling_days", "calendar_month", name="expiry_type"),
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nullable=False
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)
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duration_days = Column(Integer, default=30)
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subs = relationship("Subscription", back_populates="plan")
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@ -67,25 +69,36 @@ class Subscription(Base):
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user_id = Column(String(64), nullable=False)
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invoice_hash = Column(String(256), unique=True, nullable=False)
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invoice_request = Column(Text, nullable=False)
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status = Column(Enum("pending","active","expired","cancelled", name="sub_status"), nullable=False, default="pending")
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status = Column(
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Enum("pending","active","expired","cancelled", name="sub_status"),
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nullable=False, default="pending"
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)
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created_at = Column(DateTime, default=datetime.utcnow)
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paid_at = Column(DateTime)
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expires_at = Column(DateTime)
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role_assigned_at = Column(DateTime)
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role_removed_at = Column(DateTime)
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raw_invoice_json = Column(Text)
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raw_payment_json = Column(Text)
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raw_invoice_json = Column(JSONB)
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raw_payment_json = Column(JSONB)
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plan = relationship("Plan", back_populates="subs")
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# create tables & seed Config keys
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Base.metadata.create_all(engine)
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logger.info("✅ Database schema ready.")
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session = SessionLocal()
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for key in ("discord_token", "guild_id", "lnbits_url", "lnbits_api_key"):
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if not session.get(Config, key):
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session.add(Config(key=key, value=""))
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session.commit()
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session.close()
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# ─── Config helper ────────────────────────────────────────────────────────────
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def get_cfg(key: str) -> str:
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session = SessionLocal()
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cfg = session.get(Config, key)
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session.close()
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return cfg.value if cfg else ""
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db = SessionLocal()
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row = db.get(Config, key)
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db.close()
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return row.value if row else ""
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# Read core settings from DB
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DISCORD_TOKEN = get_cfg("discord_token")
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@ -93,15 +106,14 @@ GUILD_ID = int(get_cfg("guild_id") or 0)
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LNBITS_URL = get_cfg("lnbits_url")
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LNBITS_API_KEY = get_cfg("lnbits_api_key")
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# Validate
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for var_name, val in [
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for name, val in (
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("discord_token", DISCORD_TOKEN),
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("guild_id", GUILD_ID),
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("lnbits_url", LNBITS_URL),
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("lnbits_api_key", LNBITS_API_KEY),
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]:
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):
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if not val:
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logger.critical(f"Config key '{var_name}' is missing or empty in DB.")
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logger.critical(f"Config '{name}' is empty in DB. Fill it via the UI first.")
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exit(1)
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# Build WebSocket URL
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@ -119,17 +131,16 @@ intents = discord.Intents.default()
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intents.members = True
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bot = commands.Bot(command_prefix="!", intents=intents)
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# ─── Utility: expiry computation ───────────────────────────────────────────────
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# ─── Expiry computation ────────────────────────────────────────────────────────
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def compute_expiry(paid_at: datetime, plan: Plan) -> datetime:
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if plan.expiry_type == "calendar_month":
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first = paid_at.replace(day=1, hour=0, minute=0, second=0, microsecond=0)
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return first + relativedelta(months=1)
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elif plan.expiry_type == "rolling_days":
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if plan.expiry_type == "rolling_days":
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return paid_at + relativedelta(days=plan.duration_days)
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else: # fixed_date
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return paid_at # assume UI sets exact expires_at elsewhere
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return paid_at # fixed_date handled via UI
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# ─── Handle a plan purchase ───────────────────────────────────────────────────
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# ─── Handle plan purchase ─────────────────────────────────────────────────────
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async def handle_plan_purchase(interaction: discord.Interaction, plan: Plan):
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invoice_ch = bot.get_channel(int(plan.channel_id))
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if not invoice_ch:
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@ -149,47 +160,40 @@ async def handle_plan_purchase(interaction: discord.Interaction, plan: Plan):
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loop = asyncio.get_running_loop()
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def create_invoice():
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resp = requests.post(
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r = requests.post(
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f"{LNBITS_URL}/api/v1/payments",
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json=invoice_data,
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headers=headers,
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timeout=10
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json=invoice_data, headers=headers, timeout=10
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)
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resp.raise_for_status()
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return resp.json()
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r.raise_for_status()
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return r.json()
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try:
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inv = await loop.run_in_executor(None, create_invoice)
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except Exception:
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logger.exception("Invoice creation failed")
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return await interaction.response.send_message(
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"❌ Failed to generate invoice. Try again later.",
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ephemeral=True
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"❌ Failed to generate invoice.", ephemeral=True
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)
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pay_req = inv["bolt11"]
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pay_hash = inv["payment_hash"]
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# Store pending subscription
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db = SessionLocal()
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sub = Subscription(
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plan_id = plan.id,
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user_id = str(interaction.user.id),
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invoice_hash = pay_hash,
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invoice_request = pay_req,
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raw_invoice_json= json.dumps(inv)
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raw_invoice_json= inv
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)
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db.add(sub)
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db.commit()
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db.close()
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logger.info(f"Stored pending subscription {pay_hash} for user {interaction.user.id}")
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db.add(sub); db.commit(); db.close()
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logger.info(f"Stored pending {pay_hash} for user {interaction.user.id}")
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# Generate QR code
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def make_qr_buf():
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img = requests.compat.BytesIO()
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qrcode.make(pay_req).save(img, format="PNG")
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img.seek(0)
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return img
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buf = io.BytesIO()
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qrcode.make(pay_req).save(buf, format="PNG")
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buf.seek(0)
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return buf
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qr_buf = await loop.run_in_executor(None, make_qr_buf)
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qr_file = File(qr_buf, filename="invoice.png")
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@ -208,7 +212,7 @@ async def handle_plan_purchase(interaction: discord.Interaction, plan: Plan):
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f"✅ Invoice posted in {invoice_ch.mention}", ephemeral=True
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)
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# ─── WebSocket listener for payments ──────────────────────────────────────────
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# ─── WS listener ───────────────────────────────────────────────────────────────
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async def lnbits_ws_listener():
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await bot.wait_until_ready()
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logger.info(f"Listening to LNbits WS at {LNBITS_WS_URL}")
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@ -216,21 +220,18 @@ async def lnbits_ws_listener():
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try:
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async with websockets.connect(LNBITS_WS_URL) as ws:
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async for msg in ws:
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try:
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data = json.loads(msg)
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pay = data.get("payment", {})
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hsh = pay.get("checking_id") or pay.get("payment_hash")
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if not (hsh and pay.get("status")=="success"):
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continue
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# Activate subscription
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db = SessionLocal()
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sub = db.query(Subscription)\
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.filter_by(invoice_hash=hsh, status="pending")\
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.first()
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if not sub:
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db.close()
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continue
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db.close(); continue
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paid_at = datetime.utcnow()
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expires_at = compute_expiry(paid_at, sub.plan)
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@ -238,11 +239,9 @@ async def lnbits_ws_listener():
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sub.status = "active"
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sub.paid_at = paid_at
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sub.expires_at = expires_at
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sub.raw_payment_json = json.dumps(pay)
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db.commit()
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db.close()
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sub.raw_payment_json = pay
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db.commit(); db.close()
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# Assign role & announce
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guild = bot.get_guild(GUILD_ID)
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member = guild.get_member(int(sub.user_id)) or await guild.fetch_member(int(sub.user_id))
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role = guild.get_role(int(sub.plan.role_id))
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@ -251,22 +250,20 @@ async def lnbits_ws_listener():
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await member.add_roles(role, reason="Subscription paid")
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await chan.send(
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f"🎉 {member.mention} paid **{sub.plan.price_sats} sats** "
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f" for **{sub.plan.name}**! Expires {expires_at:%Y-%m-%d}."
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f"for **{sub.plan.name}**, expires {expires_at:%Y-%m-%d}."
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)
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except Exception:
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logger.exception("Error processing WS message")
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except Exception:
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logger.exception("WS connection error, retry in 10s")
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logger.exception("WS error; reconnecting in 10s")
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await asyncio.sleep(10)
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# ─── Cleanup expired subscriptions ─────────────────────────────────────────────
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# ─── Cleanup expired ───────────────────────────────────────────────────────────
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async def cleanup_expired():
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now = datetime.utcnow()
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db = SessionLocal()
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expired = db.query(Subscription)\
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rows = db.query(Subscription)\
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.filter(Subscription.status=="active", Subscription.expires_at <= now)\
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.all()
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for sub in expired:
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for sub in rows:
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guild = bot.get_guild(GUILD_ID)
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member = guild.get_member(int(sub.user_id))
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role = guild.get_role(int(sub.plan.role_id))
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@ -276,42 +273,35 @@ async def cleanup_expired():
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sub.status = "expired"
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sub.role_removed_at = now
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db.commit()
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logger.info(f"Removed {role.name} from {member.display_name}")
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logger.info(f"Removed expired {role.name} from {member.display_name}")
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except Exception:
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logger.exception("Failed to remove expired role")
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logger.exception("Error removing expired role")
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db.close()
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# ─── on_ready: dynamic commands + start jobs ──────────────────────────────────
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# ─── on_ready & scheduler ─────────────────────────────────────────────────────
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@bot.event
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async def on_ready():
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logger.info(f"Logged in as {bot.user} (ID: {bot.user.id})")
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logger.info(f"Bot logged in as {bot.user} (ID {bot.user.id})")
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# Register commands for each plan
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# dynamic command registration
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db = SessionLocal()
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plans = db.query(Plan).all()
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for plan in plans:
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@bot.tree.command(name=plan.command_name, description=f"Buy {plan.name}")
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@bot.tree.command(name=plan.command_name,
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description=f"Buy {plan.name} for {plan.price_sats} sats")
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async def _cmd(interaction: discord.Interaction, plan=plan):
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await handle_plan_purchase(interaction, plan)
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db.close()
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await bot.tree.sync()
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# Start WS listener
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# start WS listener
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bot.loop.create_task(lnbits_ws_listener())
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# Schedule cleanup daily at midnight UTC
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scheduler = AsyncIOScheduler(timezone="UTC")
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scheduler.add_job(cleanup_expired, "cron", hour=0, minute=0)
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scheduler.start()
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# schedule midnight‐UTC expiry check
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sched = AsyncIOScheduler(timezone="UTC")
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sched.add_job(cleanup_expired, "cron", hour=0, minute=0)
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sched.start()
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# ─── Entry point ───────────────────────────────────────────────────────────────
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# ─── Run ───────────────────────────────────────────────────────────────────────
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if __name__ == "__main__":
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# Seed Config table with required keys if missing
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session = SessionLocal()
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for key in ("discord_token","guild_id","lnbits_url","lnbits_api_key"):
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if not session.get(Config, key):
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session.add(Config(key=key, value=""))
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session.commit()
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session.close()
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bot.run(DISCORD_TOKEN)
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