module CKEditor5::Rails::Editor::Helpers

def build_editor_props(config:, type:, context:)
  Editor::Props.new(context, type, config)
end

def ckeditor5_editable(name, **kwargs, &block)
  tag.send(:'ckeditor-editable-component', name: name, **kwargs, &block)
end

def ckeditor5_editor(
  config: nil, extra_config: {},
  type: nil, preset: :default,
  **html_attributes, &block
)
  context = validate_and_get_editor_context!
  preset = fetch_editor_preset(preset)
  config ||= preset.config
  type ||= preset.type
  editor_props = build_editor_props(
    config: config.deep_merge(extra_config),
    type: type,
    context: context
  )
  render_editor_component(editor_props, html_attributes, &(type == :multiroot ? block : nil))
end

def ckeditor5_toolbar(**kwargs)
  tag.send(:'ckeditor-toolbar-component', **kwargs)
end

def fetch_editor_preset(preset)
  Engine.base.presets[preset] or
    raise PresetNotFoundError, "Preset #{preset} is not defined."
end

def render_editor_component(props, html_attributes, &block)
  tag.send(:'ckeditor-component', **props.to_attributes, **html_attributes, &block)
end

def validate_and_get_editor_context!
  unless defined?(@__ckeditor_context)
    raise EditorContextError,
          'CKEditor installation context is not defined. ' \
          'Ensure ckeditor5_assets is called in the head section.'
  end
  @__ckeditor_context
end