package ui

import (
	"embed"
	"io/fs"
	"net/http"
)

//go:embed index.html app.css app.js
var files embed.FS

func Handler() http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if r.URL.Path != "/" && r.URL.Path != "/index.html" {
			http.NotFound(w, r)
			return
		}
		b, err := files.ReadFile("index.html")
		if err != nil {
			http.Error(w, err.Error(), 500)
			return
		}
		w.Header().Set("Content-Type", "text/html; charset=utf-8")
		_, _ = w.Write(b)
	})
}

func Static() http.Handler {
	sub, err := fs.Sub(files, ".")
	if err != nil {
		panic(err)
	}
	return http.FileServer(http.FS(sub))
}