package gid

import (
	"net/url"
	"strings"

	"github.com/cedar-policy/cedar-go"
)

func NewEntityUID(globalID string) cedar.EntityUID {
	if !strings.HasPrefix(globalID, "gid://") {
		return DefaultEntityUID(globalID)
	}

	url, err := url.Parse(globalID)
	if err != nil {
		return DefaultEntityUID(globalID)
	}
	items := strings.SplitN(url.Path, "/", 3)
	if len(items) != 3 {
		return DefaultEntityUID(globalID)
	}

	return cedar.NewEntityUID(
		cedar.EntityType(items[1]),
		cedar.String(items[2]),
	)
}

func DefaultEntityUID(id string) cedar.EntityUID {
	return cedar.NewEntityUID("User", cedar.String(id))
}

func ZeroEntityUID() cedar.EntityUID {
	return cedar.NewEntityUID("", "")
}