package handlers

import (
	"net/http"
	"strings"
)

// LegacyNotFound handles old printed QR URLs of the form
// https://where-woof.com/x=5&productid=CODE (no '?' before productid —
// the whole thing lands in the path). Redirects to /t/CODE.
func (a *App) LegacyNotFound(w http.ResponseWriter, r *http.Request) {
	path := r.URL.Path
	if i := strings.Index(path, "productid="); i >= 0 {
		code := path[i+len("productid="):]
		if code != "" {
			http.Redirect(w, r, "/t/"+code, http.StatusFound)
			return
		}
	}
	http.NotFound(w, r)
}