package handlers

import (
	"context"
	"net/http"
	"os"
	"os/signal"
	"sync/atomic"
	"time"

	"github.com/knadh/koanf"
	"github.com/sirupsen/logrus"
)

func StartApplication(logger *logrus.Logger, ctx context.Context, server *http.Server, config *koanf.Koanf) {
	done := make(chan bool)
	quit := make(chan os.Signal, 1)
	signal.Notify(quit, os.Interrupt)

	go func() {
		<-quit
		logger.Infoln("Server is shutting down...")
		atomic.StoreInt32(&Healthy, 0)

		ctx, cancel := context.WithTimeout(ctx, 30*time.Second)
		defer cancel()

		server.SetKeepAlivesEnabled(false)
		if err := server.Shutdown(ctx); err != nil {
			logger.Fatalf("Could not gracefully shutdown the server: %v\n", err)
		}
		close(done)
	}()

	logger.Infof("Server is ready to handle requests at https://%s/", server.Addr)
	atomic.StoreInt32(&Healthy, 1)
	if err := server.ListenAndServeTLS(
		config.String("server.certificate"), config.String("server.key"),
	); err != nil && err != http.ErrServerClosed {
		logger.Fatalf("Could not listen on %s: %v\n", server.Addr, err)
	}

	<-done
	logger.Infoln("Server stopped")
}