package main

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

	"hopweb/internal/config"
	"hopweb/internal/gitea"
	"hopweb/internal/httpapi"
	"hopweb/internal/store"
)

func main() {
	logger := slog.New(slog.NewJSONHandler(os.Stdout, nil))
	cfg, err := config.Load()
	if err != nil {
		logger.Error("invalid configuration", "error", err)
		os.Exit(1)
	}

	ctx, cancel := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
	defer cancel()

	db, err := store.Open(ctx, cfg.DatabaseURL)
	if err != nil {
		logger.Error("open database", "error", err)
		os.Exit(1)
	}
	defer db.Close()

	if err := db.Migrate(ctx); err != nil {
		logger.Error("migrate database", "error", err)
		os.Exit(1)
	}

	giteaClient, err := gitea.NewClient(cfg.GiteaBaseURL, cfg.GiteaAPIToken)
	if err != nil {
		logger.Error("configure gitea client", "error", err)
		os.Exit(1)
	}

	server := &http.Server{
		Addr:              cfg.HTTPAddr,
		Handler:           httpapi.New(db, giteaClient, cfg.AdminToken, cfg.GiteaWebhookSecret, logger),
		ReadHeaderTimeout: 5 * time.Second,
		ReadTimeout:       15 * time.Second,
		WriteTimeout:      15 * time.Second,
		IdleTimeout:       60 * time.Second,
	}

	errCh := make(chan error, 1)
	go func() {
		logger.Info("control plane listening", "addr", cfg.HTTPAddr)
		errCh <- server.ListenAndServe()
	}()

	select {
	case err := <-errCh:
		if !errors.Is(err, http.ErrServerClosed) {
			logger.Error("serve", "error", err)
			os.Exit(1)
		}
	case <-ctx.Done():
		shutdownCtx, shutdownCancel := context.WithTimeout(context.Background(), 10*time.Second)
		defer shutdownCancel()
		if err := server.Shutdown(shutdownCtx); err != nil {
			logger.Error("shutdown", "error", err)
			os.Exit(1)
		}
	}
}