package web

import (
	"fmt"
	"net/http"
	"net/url"
)

// handleScan resolves a scanned or printed asset tag (the payload of a
// label's QR code) and redirects into the inventory page with that asset
// selected. Scanning with a phone camera opens this URL directly; a USB
// barcode scanner focused on the browser's address bar works the same way.
func (a *App) handleScan(w http.ResponseWriter, r *http.Request) {
	tag := r.PathValue("tag")
	asset, err := a.Assets.GetByTag(r.Context(), tag)
	if err != nil {
		http.Redirect(w, r, "/inventory?scan_error="+url.QueryEscape(tag), http.StatusSeeOther)
		return
	}
	http.Redirect(w, r, fmt.Sprintf("/inventory?asset=%d", asset.ID), http.StatusSeeOther)
}