forked from Rockachopa/Timmy-time-dashboard
Kimi Agent
4ba8d25749
Co-authored-by: Kimi Agent <kimi@timmy.local> Co-committed-by: Kimi Agent <kimi@timmy.local>
70 lines
1.9 KiB
Python
70 lines
1.9 KiB
Python
"""Lightning backend factory.
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Returns a mock or real LND backend based on ``settings.lightning_backend``.
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"""
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from __future__ import annotations
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import hashlib
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import logging
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import secrets
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from dataclasses import dataclass
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from config import settings
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logger = logging.getLogger(__name__)
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@dataclass
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class Invoice:
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"""Minimal Lightning invoice representation."""
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payment_hash: str
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payment_request: str
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amount_sats: int
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memo: str
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class MockBackend:
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"""In-memory mock Lightning backend for development and testing."""
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def create_invoice(self, amount_sats: int, memo: str = "") -> Invoice:
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"""Create a fake invoice with a random payment hash."""
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raw = secrets.token_bytes(32)
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payment_hash = hashlib.sha256(raw).hexdigest()
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payment_request = f"lnbc{amount_sats}mock{payment_hash[:20]}"
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logger.debug("Mock invoice: %s sats — %s", amount_sats, payment_hash[:12])
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return Invoice(
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payment_hash=payment_hash,
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payment_request=payment_request,
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amount_sats=amount_sats,
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memo=memo,
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)
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# Singleton — lazily created
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_backend: MockBackend | None = None
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def get_backend() -> MockBackend:
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"""Return the configured Lightning backend (currently mock-only).
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Raises ``ValueError`` if an unsupported backend is requested.
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"""
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global _backend # noqa: PLW0603
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if _backend is not None:
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return _backend
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kind = settings.lightning_backend
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if kind == "mock":
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_backend = MockBackend()
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elif kind == "lnd":
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# LND gRPC integration is on the roadmap — for now fall back to mock.
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logger.warning("LND backend not yet implemented — using mock")
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_backend = MockBackend()
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else:
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raise ValueError(f"Unknown lightning_backend: {kind!r}")
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logger.info("Lightning backend: %s", kind)
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return _backend
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