Fix referrer from self

1 files changed, 101 insertions, 0 deletions

diff --git a/referrer.go b/referrer.go
new file mode 100644
index 0000000..d531cd8
--- /dev/null
+++ b/referrer.go
@@ -0,0 +1,101 @@
+package sws
+
+import (
+	"net/url"
+	"sort"
+	"strings"
+	"time"
+)
+
+type Referrer struct {
+	Name       string    `json:"name"`
+	LastSeenAt time.Time `json:"last_seen_at" db:"last_seen_at"`
+	hitSet     *HitSet
+}
+
+type ReferrerSet []*Referrer
+
+func NewReferrerSet(hs *HitSet) ReferrerSet {
+	tmp := make(map[string]*Referrer)
+	for _, h := range hs.Hits() {
+		if h.Referrer == nil {
+			continue
+		}
+
+		u, err := url.Parse(*h.Referrer)
+		if err != nil || h.Host == u.Host {
+			continue
+		}
+		r := &Referrer{
+			Name:       u.Host,
+			LastSeenAt: h.CreatedAt,
+			hitSet: hs.Filter(func(t *Hit) bool {
+				if t.Referrer == nil {
+					return false
+				}
+				return strings.Contains(*t.Referrer, u.Host)
+			}),
+		}
+		// if b.LastSeenAt.Before(h.CreatedAt) {
+		// 	b.LastSeenAt = h.CreatedAt
+		// }
+		//b.hitSet.Add(h)
+		tmp[u.Host] = r
+	}
+	if len(tmp) < 1 {
+		return nil
+	}
+	out := make([]*Referrer, len(tmp))
+	i := 0
+	for _, b := range tmp {
+		out[i] = b
+		i++
+	}
+	return ReferrerSet(out)
+}
+
+func (rs *ReferrerSet) SortByName() {
+	sort.Slice(*rs, func(i, j int) bool {
+		return (*rs)[i].Name < (*rs)[j].Name
+	})
+}
+
+func (rs *ReferrerSet) SortByHits() {
+	sort.Slice(*rs, func(i, j int) bool {
+		return (*rs)[i].hitSet.Count() > (*rs)[j].hitSet.Count()
+	})
+}
+
+func (rs ReferrerSet) GetReferrer(s string) *Referrer {
+	for _, r := range rs {
+		if r.Name == s {
+			return r
+		}
+	}
+	return nil
+}
+
+func (r Referrer) Label() string {
+	return r.Name
+}
+
+func (r Referrer) Count() int {
+	return r.hitSet.Count()
+}
+
+func (r Referrer) YValue() int {
+	return r.hitSet.Count()
+}
+
+func (rs ReferrerSet) YMax() int {
+	max := 0
+	for _, r := range rs {
+		if r.hitSet.Count() > max {
+			max = r.hitSet.Count()
+		}
+	}
+	return max
+}
+func (rs ReferrerSet) XSeries() []*Referrer {
+	return rs
+}