package reader

// Options is used by the DisplayReader to configure how each field of
// the DisplayConfig will be queried.
type Options struct {
	// Returns the resolution for each display as the preferred
	// resolution rather than the currently configured resolution.
	PreferredResolution bool
	// Returns the default layout (displays ordered right-to-left
	// as they are found), rather than their currently configured
	// layout.
	DefaultLayout bool
	// Ignores input devices which do not have an absolute mode.
	IgnoreRelativeInputDevices bool
	// Ignore querying display resolutions (current resolution
	// will still be queried).
	IgnoreSupportedResolutions bool
}

func CreateOptions(options ...Option) Options {
	opts := &Options{}
	for _, o := range options {
		o(opts)
	}
	return *opts
}

// A Option is used to modify how the Reader obtains the
// DisplayConfig fields.
type Option func(*Options)

// WithPreferredResolution instructs the reader to return the
// resolution for each display as the preferred resolution
// rather than the currently configured resolution.
func WithPreferredResolution() Option {
	return func(opts *Options) {
		opts.PreferredResolution = true
	}
}

// WithDefaultLayout tells the reader to return the default
// layout (displays ordered right-to-left as they are found),
// rather than their currently configured layout.
func WithDefaultLayout() Option {
	return func(opts *Options) {
		opts.DefaultLayout = true
	}
}

// WithAbsoluteInputDevices instructs the reader to
// obtain absolute input devices only.
func WithIgnoreRelativeInputDevices() Option {
	return func(opts *Options) {
		opts.IgnoreRelativeInputDevices = true
	}
}

// WithIgnoreSupportedResolutions instructs the reader to ignore
// querying display resolutions (current resolution will
// still be queried).
func WithIgnoreSupportedResolutions() Option {
	return func(opts *Options) {
		opts.IgnoreSupportedResolutions = true
	}
}