package m31

import "time"

const (
	// HostModel has eight inputs and eight relay outputs and occupies slot
	// zero.
	HostModel = "m31-axax8080g-u"

	// MixedModel adds eight digital inputs and eight digital outputs.
	MixedModel = "m31-gaxax8080-u"

	// InputModel adds sixteen digital inputs.
	InputModel = "m31-gaxxxa000-u"

	// OutputModel adds sixteen digital outputs.
	OutputModel = "m31-gxxax00a0-u"

	// AnalogModel adds eight voltage outputs from zero through ten volts.
	AnalogModel = "m31-gxxxb0008-u"
)

// Module occupies its slice index in Settings.Modules. PulseWidths maps digital
// output channels to hardware pulse widths. Widths must be whole milliseconds
// from 50 through 65535 milliseconds. Other digital outputs use level mode.
// The constructor copies the topology and does not retain these maps.
type Module struct {
	Model       string
	PulseWidths map[int]time.Duration
}