basic online

main.go

@@ -0,0 +1,92 @@
+package main
+
+import (
+	"context"
+	"log/slog"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"Engine/internal/database"
+	"Engine/internal/handler"
+	"Engine/internal/service"
+)
+
+func main() {
+	logger := slog.New(slog.NewJSONHandler(os.Stdout, nil))
+
+	dbPath := os.Getenv("DB_PATH")
+	if dbPath == "" {
+		dbPath = "fpa.db"
+	}
+
+	db, err := database.Connect(context.Background(), dbPath)
+	if err != nil {
+		logger.Error("failed to open database", "error", err)
+		os.Exit(1)
+	}
+	defer db.Close()
+
+	if err := database.Migrate(db); err != nil {
+		logger.Error("migration failed", "error", err)
+		os.Exit(1)
+	}
+
+	budgetRepo := database.NewBudgetRepo(db)
+	actualsRepo := database.NewActualsRepo(db)
+	budgetSvc := service.NewBudgetService(budgetRepo)
+	varianceSvc := service.NewVarianceService(budgetRepo, actualsRepo)
+
+	budgetH := handler.NewBudgetHandler(budgetSvc)
+	actualsH := handler.NewActualsHandler(actualsRepo)
+	varianceH := handler.NewVarianceHandler(varianceSvc)
+
+	mux := http.NewServeMux()
+
+	mux.HandleFunc("POST /api/v1/budgets", budgetH.Create)
+	mux.HandleFunc("PUT /api/v1/budgets/{id}", budgetH.Update)
+	mux.HandleFunc("DELETE /api/v1/budgets/{id}", budgetH.Delete)
+	mux.HandleFunc("POST /api/v1/actuals/ingest", actualsH.Ingest)
+	mux.HandleFunc("GET /api/v1/variance", varianceH.Report)
+	mux.HandleFunc("GET /api/v1/variance/alerts", varianceH.Alerts)
+	mux.HandleFunc("GET /api/v1/health", func(w http.ResponseWriter, r *http.Request) {
+		if err := db.PingContext(r.Context()); err != nil {
+			http.Error(w, `{"error":"db unhealthy"}`, http.StatusServiceUnavailable)
+			return
+		}
+		w.Header().Set("Content-Type", "application/json")
+		w.Write([]byte(`{"status":"ok"}`))
+	})
+
+	port := os.Getenv("PORT")
+	if port == "" {
+		port = "8080"
+	}
+
+	srv := &http.Server{
+		Addr:         ":" + port,
+		Handler:      mux,
+		ReadTimeout:  10 * time.Second,
+		WriteTimeout: 30 * time.Second,
+		IdleTimeout:  120 * time.Second,
+	}
+
+	quit := make(chan os.Signal, 1)
+	signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
+
+	go func() {
+		logger.Info("server starting", "port", port, "db", dbPath)
+		if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
+			logger.Error("server error", "error", err)
+			os.Exit(1)
+		}
+	}()
+
+	<-quit
+	logger.Info("shutting down gracefully")
+	ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
+	defer cancel()
+	srv.Shutdown(ctx)
+}