chore: custom error

internal/handlers/restimage/conroller.go

@@ -0,0 +1,43 @@
+package restimage
+
+import (
+	"io"
+	"log/slog"
+	"net/http"
+
+	"git.schreifuchs.ch/schreifuchs/schreifuchs.ch/internal/components/images"
+	"git.schreifuchs.ch/schreifuchs/schreifuchs.ch/internal/handlers/restutil"
+)
+
+func (h *Handler) getImage(w http.ResponseWriter, r *http.Request) {
+	uid := r.PathValue("uid")
+
+	var err error
+	options := images.Options{}
+	options.Height, err = restutil.IntParam(r, "h")
+	if err != nil {
+		restutil.SendErr(w, err)
+		return
+	}
+	options.Width, err = restutil.IntParam(r, "w")
+	if err != nil {
+		restutil.SendErr(w, err)
+		return
+	}
+
+	options.Quality, err = restutil.IntParam(r, "q")
+	if err != nil {
+		restutil.SendErr(w, err)
+		return
+	}
+
+	img, mime, err := h.img.GetImage(r.Context(), uid, options)
+	if err != nil {
+		slog.Error("error wile serving image", "err", err, "uid", uid)
+		w.WriteHeader(http.StatusInternalServerError)
+		return
+	}
+
+	w.Header().Add("Content-Type", mime)
+	io.Copy(w, img)
+}

internal/handlers/restimage/resource.go

@@ -0,0 +1,26 @@
+package restimage
+
+import (
+	"context"
+	"io"
+	"net/http"
+
+	"git.schreifuchs.ch/schreifuchs/schreifuchs.ch/internal/components/images"
+)
+
+type Handler struct {
+	img imageService
+}
+
+func New(mux *http.ServeMux, srv imageService) *Handler {
+	h := &Handler{
+		img: srv,
+	}
+
+	mux.HandleFunc("GET /images/{uid}", h.getImage)
+	return h
+}
+
+type imageService interface {
+	GetImage(ctx context.Context, uid string, options images.Options) (img io.Reader, mimeType string, err error)
+}