package backend

import "errors"

var (
	// ErrQueueEmpty is returned when the play queue has no songs.
	ErrQueueEmpty = errors.New("song queue is empty")
	// ErrNoSongs is returned when no playable song could be found.
	ErrNoSongs = errors.New("no playable songs found")
	// ErrNotFound is returned when a requested resource does not exist.
	ErrNotFound = errors.New("not found")
	// ErrInvalidName is returned when a requested file name is not allowed.
	ErrInvalidName = errors.New("invalid name")
	// ErrInvalidImage is returned when an image is not a supported type or too large.
	ErrInvalidImage = errors.New("invalid image")
	// ErrCoversDisabled is returned when covers are used but COVERS_PATH is not set.
	ErrCoversDisabled = errors.New("covers are not enabled on this server")
	// ErrUpstream is returned when an external service could not be reached.
	ErrUpstream = errors.New("upstream service unavailable")
)