Sergey Filkin
96 lines
2.2 KiB
Go
96 lines
2.2 KiB
Go
package server
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import (
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"context"
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"errors"
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"fmt"
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"io/fs"
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"log/slog"
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"net/http"
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"os"
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"time"
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"github.com/fserg/md-to-html/internal/converter"
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"github.com/fserg/md-to-html/web"
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"github.com/go-chi/chi/v5"
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chimiddleware "github.com/go-chi/chi/v5/middleware"
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)
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func New(cfg Config, conv *converter.Converter) (*Server, error) {
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if conv == nil {
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return nil, errors.New("converter is required")
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}
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logger := slog.New(slog.NewTextHandler(os.Stderr, &slog.HandlerOptions{
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Level: slog.LevelInfo,
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}))
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return &Server{
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cfg: cfg,
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conv: conv,
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store: NewPreviewStore(cfg.PreviewTTL),
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log: logger,
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}, nil
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}
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func (s *Server) Router() http.Handler {
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r := chi.NewRouter()
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r.Use(chimiddleware.RequestID)
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r.Use(CORSMiddleware())
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r.Use(MaxBytesMiddleware(s.cfg.MaxRequestBytes))
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r.Use(RequestLogger(s.log))
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r.Use(chimiddleware.Recoverer)
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r.Use(chimiddleware.Timeout(30 * time.Second))
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r.Get("/", s.handleHome)
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r.Post("/convert", s.handleConvert)
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r.Get("/health", s.handleHealth)
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r.Get("/version", s.handleVersion)
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r.Get("/ready", s.handleReady)
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r.Post("/ui/convert", s.handleUIConvert)
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r.Get("/preview/{id}", s.handlePreview)
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r.Get("/download/{id}", s.handleDownload)
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if staticFS, err := fs.Sub(web.StaticFS, "static"); err == nil {
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r.Handle("/static/*", http.StripPrefix("/static/", http.FileServerFS(staticFS)))
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}
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return r
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}
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func (s *Server) Run(ctx context.Context) error {
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httpServer := &http.Server{
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Addr: s.cfg.Addr,
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Handler: s.Router(),
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}
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errCh := make(chan error, 1)
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go s.store.janitor(ctx)
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go func() {
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s.log.Info("server starting", "addr", s.cfg.Addr)
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errCh <- httpServer.ListenAndServe()
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}()
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select {
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case <-ctx.Done():
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s.log.Info("shutting down", "timeout", s.cfg.ShutdownTimeout)
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shutdownCtx, cancel := context.WithTimeout(context.Background(), s.cfg.ShutdownTimeout)
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defer cancel()
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if err := httpServer.Shutdown(shutdownCtx); err != nil {
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return fmt.Errorf("shutdown server: %w", err)
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}
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if err := <-errCh; err != nil && !errors.Is(err, http.ErrServerClosed) {
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return fmt.Errorf("server exited after shutdown: %w", err)
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}
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return nil
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case err := <-errCh:
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if err == nil || errors.Is(err, http.ErrServerClosed) {
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return nil
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}
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return fmt.Errorf("serve: %w", err)
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}
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}
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