ordering

var (
	L = map[string]T{
		"titles": OrderingTitles,
		"queued": OrderingQueued,
		"score":  OrderingScore,
		"corpus": OrderingCorpus,
	}

	F = map[T]C{
		OrderingTitles: func(a *dpb.Entry, b *dpb.Entry) int {
			var at string
			var bt string

			if len(a.GetTitles()) > 0 {
				at = strings.ToLower(a.GetTitles()[0])
			}
			if len(b.GetTitles()) > 0 {
				bt = strings.ToLower(b.GetTitles()[0])
			}
			return strings.Compare(at, bt)
		},
		OrderingCorpus: func(a *dpb.Entry, b *dpb.Entry) int {
			return strings.Compare(a.GetCorpus().String(), b.GetCorpus().String())
		},
		OrderingQueued: func(a *dpb.Entry, b *dpb.Entry) int {
			if a.GetQueued() && !b.GetQueued() {
				return -1
			}
			if b.GetQueued() && !a.GetQueued() {
				return 1
			}
			return 0
		},
		OrderingScore: func(a *dpb.Entry, b *dpb.Entry) int {
			if a.GetScore() > b.GetScore() {
				return -1
			}
			if a.GetScore() < b.GetScore() {
				return 1
			}
			return 0
		},
	}
)