arbret/backend/schemas/price.py
counterweight d317939ad0
Step 5: Update exchange price endpoint to use new pricing config
- Update ExchangeConfigResponse schema with direction-specific fields
- Remove premium_percentage from PriceResponse (now in config)
- Update price endpoint to load pricing config from database
- Update frontend to use direction-specific min/max and calculate premium
- Update tests to seed pricing config
- Add logic to clamp amount when direction changes
2025-12-26 20:20:23 +01:00

50 lines
1.2 KiB
Python

from datetime import datetime
from pydantic import BaseModel
class PriceHistoryResponse(BaseModel):
"""Response model for a price history record."""
id: int
source: str
pair: str
price: float
timestamp: datetime
created_at: datetime
class ExchangeConfigResponse(BaseModel):
"""Exchange configuration for the frontend."""
eur_min_buy: int
eur_max_buy: int
eur_min_sell: int
eur_max_sell: int
eur_increment: int
premium_buy: int
premium_sell: int
small_trade_threshold_eur: int
small_trade_extra_premium: int
class PriceResponse(BaseModel):
"""Current BTC/EUR price for trading.
Note: The actual agreed price depends on trade direction (buy/sell)
and is calculated by the frontend using market_price and premium values.
Premium calculation: base premium for direction + extra premium if
trade <= threshold.
"""
market_price: float # Raw price from exchange
timestamp: datetime
is_stale: bool
class ExchangePriceResponse(BaseModel):
"""Combined price and configuration response."""
price: PriceResponse | None # None if price fetch failed
config: ExchangeConfigResponse
error: str | None = None