package main

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

	"gitea.meghsakha.com/platform/tenant-registry/internal/config"
	"gitea.meghsakha.com/platform/tenant-registry/internal/server"
)

func main() {
	logger := slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{Level: slog.LevelInfo}))
	slog.SetDefault(logger)

	cfg, err := config.Load()
	if err != nil {
		slog.Error("config load failed", "err", err)
		os.Exit(1)
	}

	mux := server.NewRouter(cfg, logger)
	srv := &http.Server{
		Addr:         cfg.Addr,
		Handler:      mux,
		ReadTimeout:  10 * time.Second,
		WriteTimeout: 30 * time.Second,
		IdleTimeout:  60 * time.Second,
	}

	ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
	defer stop()

	go func() {
		slog.Info("tenant-registry listening", "addr", cfg.Addr, "env", cfg.Env)
		if err := srv.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
			slog.Error("server crashed", "err", err)
			os.Exit(1)
		}
	}()

	<-ctx.Done()
	slog.Info("shutdown requested")
	shutdownCtx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
	defer cancel()
	if err := srv.Shutdown(shutdownCtx); err != nil {
		slog.Error("shutdown failed", "err", err)
		os.Exit(1)
	}
	slog.Info("bye")
}