package entity

// Kind is moment_posts.kind.
type Kind int16

const (
	KindText  Kind = 1
	KindImage Kind = 2
	KindVideo Kind = 3
)

func (k Kind) Valid() bool {
	return k == KindText || k == KindImage || k == KindVideo
}

// Visibility is moment_posts.visibility.
type Visibility int16

const (
	VisibilityFriends Visibility = 0
	VisibilityPrivate Visibility = 1
	VisibilityInclude Visibility = 2
	VisibilityExclude Visibility = 3
)

func (v Visibility) Valid() bool {
	return v >= VisibilityFriends && v <= VisibilityExclude
}

func (v Visibility) NeedsAudience() bool {
	return v == VisibilityInclude || v == VisibilityExclude
}

// Status is moment_posts.status / moment_comments.status.
type Status int16

const (
	StatusNormal  Status = 0
	StatusDeleted Status = 1
)

func (s Status) Valid() bool {
	return s == StatusNormal || s == StatusDeleted
}

// NoticeKind is moment_notices.kind.
type NoticeKind int16

const (
	NoticeLike    NoticeKind = 1
	NoticeComment NoticeKind = 2
	NoticeReply   NoticeKind = 3
)

func (k NoticeKind) Valid() bool {
	return k == NoticeLike || k == NoticeComment || k == NoticeReply
}

// VisibleDays is moment_settings.visible_days.
type VisibleDays int

const (
	VisibleAll        VisibleDays = 0
	Visible3Days      VisibleDays = 3
	Visible30Days     VisibleDays = 30
	Visible180Days    VisibleDays = 180
	MaxAudience                   = 200
	MaxImages                     = 9
	MaxTextRunes                  = 1000
	MaxCommentRunes               = 500
	MaxVideoMS                    = 30_000
	ListDefault                   = 20
	ListMax                       = 50
	Overfetch                     = 50
	OverfetchRounds               = 3
	LikePreviewMax                = 10
	CommentPreviewMax             = 20
)

func (d VisibleDays) Valid() bool {
	return d == VisibleAll || d == Visible3Days || d == Visible30Days || d == Visible180Days
}

func ClampLimit(limit int) int {
	if limit <= 0 {
		return ListDefault
	}
	if limit > ListMax {
		return ListMax
	}
	return limit
}