Refactor project structure to organize APIs (#24)

* Refactor project structure "api"
* fix bug conversione delle valute fiat in stablecoin in BinanceWrapper
* Refactor: WrapperHandler for managing API wrappers with retry logic; update related modules and tests
* Refactor: Update ProductInfo and Price classes to include aggregation methods; remove standalone aggregation functions
* fix docs

src/app/api/markets/yfinance.py

@@ -0,0 +1,82 @@
+import json
+from agno.tools.yfinance import YFinanceTools
+from app.api.base.markets import MarketWrapper, ProductInfo, Price
+
+
+def extract_product(stock_data: dict[str, str]) -> ProductInfo:
+    """
+    Converte i dati di YFinanceTools in ProductInfo.
+    """
+    product = ProductInfo()
+    product.id = stock_data.get('Symbol', '')
+    product.symbol = product.id.split('-')[0]  # Rimuovi il suffisso della valuta per le crypto
+    product.price = float(stock_data.get('Current Stock Price', f"0.0 USD").split(" ")[0]) # prende solo il numero
+    product.volume_24h = 0.0 # YFinance non fornisce il volume 24h direttamente
+    product.currency = product.id.split('-')[1]  # La valuta è la parte dopo il '-'
+    return product
+
+def extract_price(hist_data: dict[str, str]) -> Price:
+    """
+    Converte i dati storici di YFinanceTools in Price.
+    """
+    timestamp = int(hist_data.get('Timestamp', '0'))
+
+    price = Price()
+    price.high = float(hist_data.get('High', 0.0))
+    price.low = float(hist_data.get('Low', 0.0))
+    price.open = float(hist_data.get('Open', 0.0))
+    price.close = float(hist_data.get('Close', 0.0))
+    price.volume = float(hist_data.get('Volume', 0.0))
+    price.set_timestamp(timestamp_ms=timestamp)
+    return price
+
+
+class YFinanceWrapper(MarketWrapper):
+    """
+    Wrapper per YFinanceTools che fornisce dati di mercato per azioni, ETF e criptovalute.
+    Implementa l'interfaccia BaseWrapper per compatibilità con il sistema esistente.
+    Usa YFinanceTools dalla libreria agno per coerenza con altri wrapper.
+    """
+
+    def __init__(self, currency: str = "USD"):
+        self.currency = currency
+        self.tool = YFinanceTools()
+
+    def _format_symbol(self, asset_id: str) -> str:
+        """
+        Formatta il simbolo per yfinance.
+        Per crypto, aggiunge '-' e la valuta (es. BTC -> BTC-USD).
+        """
+        asset_id = asset_id.upper()
+        return f"{asset_id}-{self.currency}" if '-' not in asset_id else asset_id
+
+    def get_product(self, asset_id: str) -> ProductInfo:
+        symbol = self._format_symbol(asset_id)
+        stock_info = self.tool.get_company_info(symbol)
+        stock_info = json.loads(stock_info)
+        return extract_product(stock_info)
+
+    def get_products(self, asset_ids: list[str]) -> list[ProductInfo]:
+        products: list[ProductInfo] = []
+        for asset_id in asset_ids:
+            product = self.get_product(asset_id)
+            products.append(product)
+        return products
+
+    def get_historical_prices(self, asset_id: str, limit: int = 100) -> list[Price]:
+        symbol = self._format_symbol(asset_id)
+
+        days = limit // 24 + 1  # Arrotonda per eccesso
+        hist_data = self.tool.get_historical_stock_prices(symbol, period=f"{days}d", interval="1h")
+        hist_data = json.loads(hist_data)
+
+        # Il formato dei dati è {timestamp: {Open: x, High: y, Low: z, Close: w, Volume: v}}
+        timestamps = sorted(hist_data.keys())[-limit:]
+
+        prices: list[Price] = []
+        for timestamp in timestamps:
+            temp = hist_data[timestamp]
+            temp['Timestamp'] = timestamp
+            price = extract_price(temp)
+            prices.append(price)
+        return prices