better end points and better tests

internal/handler/report.go

@@ -0,0 +1,40 @@
+package handler
+
+import (
+	"Engine/internal/model"
+	"Engine/internal/service"
+	"context"
+	"encoding/json"
+	"net/http"
+)
+
+type ReportHandler struct {
+	svc *service.ReportService
+}
+
+func NewReportHandler(svc *service.ReportService) *ReportHandler {
+	return &ReportHandler{svc: svc}
+}
+
+func (report *ReportHandler) PnL(w http.ResponseWriter, r *http.Request) {
+	var req model.PnLRequest
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		writeError(w, http.StatusBadRequest, "invalid request body")
+		return
+	}
+
+	for _, year := range req.FiscalYears {
+		for _, period := range req.FiscalPeriods {
+			for _, Department := range req.DeptCodes {
+				report.svc.CreatePnL(context.TODO(), service.PnLFilter{
+					FiscalYear:   year,
+					FiscalPeriod: period,
+					DeptCode:     Department,
+					Version:      req.Version,
+				})
+
+			}
+		}
+	}
+
+}