added first implementation of position list

internal/handler/portfolio.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"net/http"
 	"portfolio-tracker/internal/model"
+	"portfolio-tracker/internal/service"
 	"portfolio-tracker/internal/web/templates"
 	"strconv"
 	"strings"
@@ -53,10 +54,30 @@ func PortfolioDetailHandler(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	// Calculate positions
+	fmt.Printf("DEBUG: Starting position calculation for portfolio %d with %d activities\n", portfolio.ID, len(portfolio.Activities))
+	positionCalculator := service.NewPositionCalculator()
+	positions, positionSummary, err := positionCalculator.CalculatePositions(portfolio)
+	if err != nil {
+		fmt.Printf("Error calculating positions: %v\n", err)
+		// Continue with empty positions rather than failing
+		positions = []model.Position{}
+		positionSummary = model.PositionSummary{
+			Currency:    portfolio.BaseCurrency,
+			LastUpdated: time.Now(),
+		}
+	}
+
+	fmt.Printf("DEBUG: Position calculation completed. Found %d positions\n", len(positions))
+	for i, pos := range positions {
+		fmt.Printf("DEBUG: Position %d: %s - Shares: %.4f, Open: %v\n", i+1, pos.Stock, pos.Shares, pos.IsOpen())
+	}
+	fmt.Printf("DEBUG: Position summary - Total Value: %.2f, Total Cost: %.2f\n", positionSummary.TotalValue, positionSummary.TotalCostBasis)
+
 	// Get all user portfolios for navigation
 	portfolios := getUserPortfolios(username)
 
-	component := templates.PortfolioDetail(auth, username, portfolio, portfolios)
+	component := templates.PortfolioDetail(auth, username, portfolio, portfolios, positions, positionSummary)
 	templ.Handler(component).ServeHTTP(w, r)
 }
 
@@ -196,6 +217,14 @@ func PortfolioTransactionHandler(w http.ResponseWriter, r *http.Request) {
 
 	fmt.Printf("Stock %s currency: %s\n", stock, stockCurrency)
 
+	// Handle GBp (pence) to GBP (pounds) conversion
+	// If the stock is quoted in pence, convert price to pounds
+	if stockCurrency == "GBp" {
+		price = price / 100.0
+		stockCurrency = "GBP"
+		fmt.Printf("Converted GBp price %.2f to GBP price %.2f\n", price*100, price)
+	}
+
 	// Create activity
 	activity := model.Activity{
 		PortfolioID: uint(portfolioID),
@@ -317,6 +346,14 @@ func EditTransactionHandler(w http.ResponseWriter, r *http.Request) {
 		stockCurrency = portfolio.BaseCurrency
 	}
 
+	// Handle GBp (pence) to GBP (pounds) conversion
+	// If the stock is quoted in pence, convert price to pounds
+	if stockCurrency == "GBp" {
+		price = price / 100.0
+		stockCurrency = "GBP"
+		fmt.Printf("Converted GBp price %.2f to GBP price %.2f\n", price*100, price)
+	}
+
 	// Update activity fields
 	activity.Type = model.ActivityType(transactionType)
 	activity.Stock = stock