initial backend version and fix front details

Author: Douglas019BR

backend/requirements.txt

@@ -0,0 +1,3 @@
+yfinance==0.2.40
+fastapi==0.114.2
+fastapi-cli==0.0.5

backend/server.py

@@ -1,7 +1,22 @@
+from yfinance_functions import process_symbol
 from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
 
 app = FastAPI()
 
+origins = [
+    "http://localhost:3000",
+    "http://localhost*",
+]
+
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=origins,
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
 
 @app.get("/hello-world")
 async def root():
@@ -10,5 +25,29 @@ async def root():
 
 @app.post("/profit-calculate")
 async def profit_calculate(request: dict):
-    print(request.json())
-    return {"profit": 100}
+    print(request)
+    results = []
+    for row in request['data']:
+        symbol_result = process_symbol(
+            row['SYMBOL'], row['AMOUNT'], row['PURCHASE_DATE'], row['PURCHASE_VALUE'])
+        symbol_result['symbol'] = row['SYMBOL']
+        symbol_result['amount'] = row['AMOUNT']
+        results.append(symbol_result)
+    return results
+
+# {
+    #     "data": [
+    #         {
+    #             "SYMBOL": "BBSE3.sa",
+    #             "AMOUNT": 11,
+    #             "PURCHASE_DATE": "01/10/2023",
+    #             "PURCHASE_VALUE": 31.46,
+    #         }
+    #         {
+    #             "SYMBOL": "NIKE34.sa",
+    #             "AMOUNT": 7,
+    #             "PURCHASE_DATE": "09/10/2023",
+    #             "PURCHASE_VALUE": 47.04,
+    #         }
+    #     ]
+    # }

backend/main.py backend/yfinance_functions.py

@@ -1,4 +1,5 @@
 from datetime import datetime
+from typing import List
 
 import pytz
 import yfinance as yf
@@ -27,8 +28,21 @@ def get_current_price(symbol: str) -> float:
         current_price = stock.history(period="1d")["Close"].iloc[0]
     return current_price
 
+def process_symbol(symbol: str,amount :int, purchase_date: str,purchase_value:float) -> dict:
+    dividends = get_dividends(symbol, purchase_date)
+    current_price = get_current_price(symbol)
+    total_dividends = sum(dividends.values()) * amount if dividends else 0
 
-def process_portfolio(filename):
+    current_value = current_price * amount
+    purchase_total = purchase_value * amount
+    value_difference = current_value - purchase_total
+    balance = value_difference + total_dividends
+
+    return {"current_value": current_value, "purchase_total": purchase_total, "value_difference": value_difference, "balance": balance, "total_dividends": total_dividends}
+
+
+
+def process_portfolio(filename : str) -> List[dict]:
     results = []
 
     with open(filename, newline="", encoding="utf-8") as csvfile: