package platform

import "context"

type Principal struct {
	Name string `json:"name"`
	Role string `json:"role"`
}

type principalContextKey struct{}

func WithPrincipal(ctx context.Context, principal Principal) context.Context {
	return context.WithValue(ctx, principalContextKey{}, principal)
}

func PrincipalFromContext(ctx context.Context) (Principal, bool) {
	principal, ok := ctx.Value(principalContextKey{}).(Principal)
	return principal, ok
}

func ActorFromContext(ctx context.Context) string {
	if principal, ok := PrincipalFromContext(ctx); ok && principal.Name != "" {
		return principal.Name
	}
	return "system"
}