blasphem/pkg/frontend/frontend.go

package frontend

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

	"github.com/labstack/echo/v4"
)

//go:embed frontend/hass_frontend
var root embed.FS

var RootFS fs.FS

var FSHandler echo.HandlerFunc

func AliasHandler(toFile string) echo.HandlerFunc {
	return func(c echo.Context) error {
		file, err := RootFS.Open(toFile)
		if err != nil {
			return err
		}
		defer file.Close()

		b, err := io.ReadAll(file)
		if err != nil {
			return err
		}

		return c.HTML(http.StatusOK, string(b))
	}
}

func init() {
	var err error

	RootFS, err = fs.Sub(root, "frontend/hass_frontend")
	if err != nil {
		panic(err)
	}

	FSHandler = echo.StaticDirectoryHandler(RootFS, false)
}