package voice

import "errors"

// Sentinel errors returned by the voice package. Each is wrapped with %w so
// callers can test for a category while keeping the cause.
var (
	// ErrProviderFailed is returned when every provider in a chain fails.
	ErrProviderFailed = errors.New("voice: all providers failed")
	// ErrNotConfigured is returned when a provider has no endpoint/setting.
	ErrNotConfigured = errors.New("voice: provider not configured")
	// ErrNotImplemented is returned by an adaptation-point provider.
	ErrNotImplemented = errors.New("voice: provider not implemented")
	// ErrEmptyText is returned when TTS receives empty text.
	ErrEmptyText = errors.New("voice: empty text")
	// ErrClosed is returned when a service call arrives after Close.
	ErrClosed = errors.New("voice: service closed")
)