//go:build unix && (!darwin)
package registrar

import "os"
import "log"
import "git.tebibyte.media/tomo/tomo"
import "git.tebibyte.media/tomo/backend/x"
import "git.tebibyte.media/tomo/nasin/internal/style"
import "git.tebibyte.media/tomo/nasin/internal/icons/xdg"
import "git.tebibyte.media/tomo/nasin/internal/icons/fallback"
import "git.tebibyte.media/tomo/nasin/internal/style/fallback"
import "git.tebibyte.media/tomo/nasin/internal/style/aluminum"

func RegisterBackend () error {
	tomo.Register(1, x.New)
	return nil
}

func SetTheme () error {
	var styl *style.Style
	// TODO eventually get rid of this when we make a file format for
	// storing visual styles
	if os.Getenv("TOMO_USE_ALUMINUM_STYLE") != "" {
		styl = aluminumStyle.New()
	} else {
		styl = fallbackStyle.New()
	}
	icons := fallbackIcons.New()
	
	iconThemeName := os.Getenv("TOMO_XDG_ICON_THEME")
	if iconThemeName != "" {
		xdgIconTheme, err := xdgIcons.FindThemeWarn(iconThemeName, icons)
		if err == nil {
			icons = xdgIconTheme
		} else {
			log.Printf("nasin: could not load icon theme '%s': %v", iconThemeName, err)
		}
	}
	
	tomo.SetStyle(styl)
	tomo.SetIcons(icons)
	return nil	
}