Bootstrap milestone 0 and default API port 9999

cmd/reanimator-api/main.go

@@ -0,0 +1,53 @@
+package main
+
+import (
+	"context"
+	"errors"
+	"log"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"reanimator/internal/api"
+	"reanimator/internal/config"
+)
+
+func main() {
+	cfg, err := config.Load()
+	if err != nil {
+		log.Fatalf("load config: %v", err)
+	}
+
+	srv := api.NewServer(cfg.HTTPAddr, cfg.ReadTimeout, cfg.WriteTimeout)
+
+	errCh := make(chan error, 1)
+	go func() {
+		log.Printf("starting API server on %s", cfg.HTTPAddr)
+		errCh <- srv.Start()
+	}()
+
+	signalCh := make(chan os.Signal, 1)
+	signal.Notify(signalCh, syscall.SIGINT, syscall.SIGTERM)
+
+	select {
+	case sig := <-signalCh:
+		log.Printf("received signal %s, shutting down", sig)
+	case err := <-errCh:
+		if err == nil || errors.Is(err, http.ErrServerClosed) {
+			return
+		}
+		log.Fatalf("server error: %v", err)
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), cfg.ShutdownGrace)
+	defer cancel()
+
+	if err := srv.Shutdown(ctx); err != nil {
+		log.Fatalf("shutdown server: %v", err)
+	}
+
+	// Ensure in-flight logs flush before exit in short-lived environments.
+	time.Sleep(25 * time.Millisecond)
+}

cmd/reanimator-migrate/main.go

@@ -0,0 +1,42 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"log"
+
+	"reanimator/internal/config"
+	"reanimator/internal/repository/migrate"
+)
+
+func main() {
+	directionFlag := flag.String("direction", string(migrate.Up), "migration direction: up|down")
+	dryRun := flag.Bool("dry-run", true, "print discovered migrations only")
+	flag.Parse()
+
+	cfg, err := config.Load()
+	if err != nil {
+		log.Fatalf("load config: %v", err)
+	}
+
+	direction := migrate.Direction(*directionFlag)
+	if direction != migrate.Up && direction != migrate.Down {
+		log.Fatalf("invalid direction %q", *directionFlag)
+	}
+
+	runner := migrate.Runner{Dir: cfg.MigrationsDir}
+	migrations, err := runner.Load(direction)
+	if err != nil {
+		log.Fatalf("load migrations: %v", err)
+	}
+
+	for _, migration := range migrations {
+		fmt.Println(migration.Name)
+	}
+
+	if *dryRun {
+		return
+	}
+
+	log.Fatalf("execution mode is not implemented yet; keep dry-run=true for now")
+}