@use "sass:meta";

// If `$govuk-font-url-function` or `$govuk-image-url-function` are configured as a string
// we need to resolve them to a function in this import-only file. The file included by `@forward`
// will be loaded as a module and will be isolated from the code that `@import`s this file
// and where the function is available
@forward "../settings" with (
  $govuk-font-url-function: meta.variable-exists("govuk-font-url-function") and
    (
      (meta.type-of($govuk-font-url-function) == "string" and meta.get-function($govuk-font-url-function)) or
        $govuk-font-url-function
    ),
  $govuk-image-url-function: meta.variable-exists("govuk-image-url-function") and
    (
      (meta.type-of($govuk-image-url-function) == "string" and meta.get-function($govuk-image-url-function)) or
        $govuk-image-url-function
    )
);

@forward "image-url";

@use "../settings/warnings--internal";

@if meta.variable-exists("govuk-image-url-function") and meta.type-of($govuk-image-url-function) == "string" {
  @include warnings--internal.warning(
    "image-url-string",
    "Passing a string to $govuk-image-url-function is deprecated. " +
      "Pass a function using meta.get-function(...) instead."
  );
}