// DEPRECATED: This runner is deprecated and no longer has any functionality.
// It is left in place until deployment code is updated accordingly.
// See remove_query_plan.md for details on the query removal.
package main

import (
	"context"
	"log/slog"
	"net/http"
	"os"
	"os/signal"
	"syscall"
	"time"

	"queryorchestration/internal/serviceconfig/build"
)

const serviceName = "queryVersionSyncRunner"

func main() {
	// Print version information
	build.PrintVersionInfo(serviceName)

	slog.Warn("DEPRECATED: " + serviceName + " is deprecated and no longer has any functionality. " +
		"This service is left in place until deployment code is updated accordingly.")

	// Start minimal HTTP server for health checks (required for cloud deployments)
	mux := http.NewServeMux()
	mux.HandleFunc("/health", func(w http.ResponseWriter, _ *http.Request) {
		w.WriteHeader(http.StatusOK)
	})

	server := &http.Server{
		Addr:              ":8080",
		Handler:           mux,
		ReadHeaderTimeout: time.Minute,
	}

	go func() {
		slog.Info("Starting health check server on port 8080")
		if err := server.ListenAndServe(); err != http.ErrServerClosed {
			slog.Error("Health check server error", "error", err)
		}
	}()

	// Wait for shutdown signal
	sigChan := make(chan os.Signal, 1)
	signal.Notify(sigChan, syscall.SIGINT, syscall.SIGTERM)

	sig := <-sigChan
	slog.Info(serviceName+" received shutdown signal, exiting gracefully", "signal", sig.String())

	// Gracefully shutdown the HTTP server
	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
	defer cancel()
	if err := server.Shutdown(ctx); err != nil {
		slog.Error("Error shutting down health check server", "error", err)
	}
}