pronounss/backend/main.go
2022-07-05 22:21:28 +02:00

95 lines
2.1 KiB
Go

package main
import (
"context"
"io/fs"
"net/http"
"os"
"os/signal"
"strings"
"codeberg.org/u1f320/pronouns.cc/backend/log"
"codeberg.org/u1f320/pronouns.cc/backend/server"
"codeberg.org/u1f320/pronouns.cc/frontend"
"emperror.dev/errors"
"github.com/go-chi/chi/v5"
"github.com/go-chi/chi/v5/middleware"
_ "github.com/joho/godotenv/autoload"
)
func main() {
port := ":" + os.Getenv("PORT")
s, err := server.New()
if err != nil {
log.Fatalf("Error creating server: %v", err)
}
// mount api routes
mountRoutes(s)
r := chi.NewMux()
setupFrontend(r, s)
e := make(chan error)
// run server in another goroutine (for gracefully shutting down, see below)
go func() {
e <- http.ListenAndServe(port, r)
}()
ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt)
defer stop()
log.Infof("API server running at %v!", port)
select {
case <-ctx.Done():
log.Info("Interrupt signal received, shutting down...")
s.DB.Close()
return
case err := <-e:
log.Fatalf("Error running server: %v", err)
}
}
func setupFrontend(r chi.Router, s *server.Server) {
r.Use(middleware.Recoverer)
r.Get("/@{user}", nil)
r.Get("/@{user}/{member}", nil)
r.Mount("/api", s.Router)
r.NotFound(func(w http.ResponseWriter, r *http.Request) {
data, err := frontend.Data.ReadFile("dist" + r.URL.Path)
if err != nil {
if errors.Is(err, fs.ErrNotExist) {
data, err = frontend.Data.ReadFile("dist/index.html")
if err != nil && !errors.Is(err, fs.ErrNotExist) {
log.Errorf("serving frontend file: %v", err)
http.Error(w, "Internal server error", http.StatusInternalServerError)
return
}
http.Error(w, "Not found", http.StatusNotFound)
return
}
log.Errorf("serving frontend file: %v", err)
http.Error(w, "Internal server error", http.StatusInternalServerError)
return
}
if strings.HasSuffix(r.URL.Path, ".js") {
w.Header().Add("content-type", "application/javascript")
} else if strings.HasSuffix(r.URL.Path, ".css") {
w.Header().Add("content-type", "text/css")
} else {
w.Header().Add("content-type", "text/html")
}
w.Write(data)
})
}