86 lines
2.3 KiB
Go
86 lines
2.3 KiB
Go
package main
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import (
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"errors"
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"io/fs"
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"log"
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"net/http"
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"strings"
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"github.com/go-chi/chi/v5"
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"github.com/go-chi/chi/v5/middleware"
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"gitea.parodia.dev/drwily/petal/internal/config"
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"gitea.parodia.dev/drwily/petal/internal/db"
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"gitea.parodia.dev/drwily/petal/web"
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)
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func main() {
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cfg := config.Load()
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database, err := db.Open(cfg.DatabasePath)
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if err != nil {
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log.Fatalf("database: %v", err)
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}
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defer database.Close()
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log.Printf("database ready at %s", cfg.DatabasePath)
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r := chi.NewRouter()
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r.Use(middleware.RequestID)
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r.Use(middleware.RealIP)
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r.Use(middleware.Logger)
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r.Use(middleware.Recoverer)
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r.Route("/api", func(api chi.Router) {
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api.Get("/health", func(w http.ResponseWriter, _ *http.Request) {
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w.Header().Set("Content-Type", "application/json")
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_, _ = w.Write([]byte(`{"status":"ok"}`))
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})
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})
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// Everything else: serve the embedded SPA (with index.html fallback for client routing).
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r.NotFound(spaHandler())
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addr := ":" + cfg.Port
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log.Printf("petal listening on %s (LLM backend=%s)", addr, cfg.LLMBackend)
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if err := http.ListenAndServe(addr, r); err != nil {
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log.Fatalf("server error: %v", err)
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}
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}
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// spaHandler serves the embedded web/dist as a single-page app: static files
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// when they exist, falling back to index.html for unknown paths. If the
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// frontend hasn't been built yet, it returns a friendly dev hint instead.
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func spaHandler() http.HandlerFunc {
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sub, err := fs.Sub(web.DistFS, "dist")
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if err != nil {
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log.Fatalf("embed sub: %v", err)
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}
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if _, err := fs.Stat(sub, "index.html"); errors.Is(err, fs.ErrNotExist) {
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return func(w http.ResponseWriter, _ *http.Request) {
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w.Header().Set("Content-Type", "text/plain; charset=utf-8")
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w.WriteHeader(http.StatusOK)
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_, _ = w.Write([]byte("Petal backend is running, but the frontend isn't built yet.\n" +
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"Run `npm run build` in web/, or use `npm run dev` for the dev server on :5173.\n"))
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}
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}
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fileServer := http.FileServer(http.FS(sub))
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return func(w http.ResponseWriter, req *http.Request) {
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p := strings.TrimPrefix(req.URL.Path, "/")
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if p == "" {
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p = "index.html"
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}
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if _, err := fs.Stat(sub, p); errors.Is(err, fs.ErrNotExist) {
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// Unknown path → let the SPA router handle it.
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req2 := new(http.Request)
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*req2 = *req
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req2.URL.Path = "/"
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fileServer.ServeHTTP(w, req2)
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return
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}
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fileServer.ServeHTTP(w, req)
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}
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}
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