module CKEditor5::Rails::Cdn::Helpers

def build_base_cdn_bundle(cdn, version, translations)
  Cdn::CKEditorBundle.new(
    Semver.new(version),
    'ckeditor5',
    translations: translations,
    cdn: cdn
  )
end

def build_ckbox_cdn_bundle(ckbox)
  Cdn::CKBoxBundle.new(
    Semver.new(ckbox[:version]),
    theme: ckbox[:theme] || :lark,
    cdn: ckbox[:cdn] || :ckbox
  )
end

def build_premium_cdn_bundle(cdn, version, translations)
  Cdn::CKEditorBundle.new(
    Semver.new(version),
    'ckeditor5-premium-features',
    translations: translations,
    cdn: cdn
  )
end

def ckeditor5_assets(preset: :default, **kwargs)
  mapped_preset = merge_with_editor_preset(preset, **kwargs)
  mapped_preset => {
    cdn:,
    version:,
    translations:,
    ckbox:,
    license_key:,
    premium:
  }
  bundle = build_base_cdn_bundle(cdn, version, translations)
  bundle << build_premium_cdn_bundle(cdn, version, translations) if premium
  bundle << build_ckbox_cdn_bundle(ckbox) if ckbox
  @__ckeditor_context = {
    license_key: license_key,
    bundle: bundle,
    preset: mapped_preset
  }
  Assets::AssetsBundleHtmlSerializer.new(bundle).to_html
end

def merge_with_editor_preset(preset, language: nil, **kwargs)
  found_preset = Engine.find_preset(preset)
  if found_preset.blank?
    raise ArgumentError,
          "Poor thing. You forgot to define your #{preset} preset. " \
          'Please define it in initializer. Thank you!'
  end
  new_preset = found_preset.clone.merge_with_hash!(**kwargs)
  # Assign default language if not present
  if language.present?
    new_preset.language(language)
  elsif !new_preset.language?
    new_preset.language(I18n.locale)
  end
  %i[version type].each do |key|
    next if new_preset.public_send(key).present?
    raise ArgumentError,
          "Poor thing. You forgot to define #{key}. Make sure you passed `#{key}:` parameter to " \
          "`ckeditor5_assets` or defined default one in your `#{preset}` preset!"
  end
  new_preset
end