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main.go

@@ -29,7 +29,7 @@ func main() {
 	ping.SendPing(db, failureSite)
 
 	http.HandleFunc("GET /", func(w http.ResponseWriter, r *http.Request) {
-		pings := ping.List(db)
+		pings := ping.ListGroupedBySite(db)
 
 		if output, err := json.Marshal(pings); err != nil {
 			w.Write([]byte(err.Error()))

ping/ping.go

@@ -101,3 +101,43 @@ func List(db *sql.DB) []PingResponse {
 
 	return pings
 }
+
+type SiteResponse struct {
+	created_at string
+	Name       string
+	Url        string
+	Pings      []Ping
+}
+
+func ListGroupedBySite(db *sql.DB) []SiteResponse {
+
+	responses := make([]SiteResponse, 0)
+
+	for _, site := range sites.List(db) {
+		s := SiteResponse{Url: site.Url, Name: site.Name, created_at: site.Created_at}
+		s.Pings = listForSite(db, site)
+		responses = append(responses, s)
+	}
+
+	return responses
+}
+
+func listForSite(db *sql.DB, site sites.Site) []Ping {
+	rows, err := db.Query(`SELECT ping.timestamp, ping.status FROM ping WHERE site = ? ORDER BY timestamp DESC`, site.Url)
+
+	if err != nil {
+		panic(err)
+	}
+	defer rows.Close()
+
+	pings := make([]Ping, 0)
+
+	for rows.Next() {
+		p := Ping{}
+		rows.Scan(&p.Timestamp, &p.Status)
+		p.Site = site
+		pings = append(pings, p)
+	}
+
+	return pings
+}

sites/sites.go

@@ -18,7 +18,7 @@ func CreateTable(db *sql.DB) {
 }
 
 type Site struct {
-	created_at uint64
+	Created_at string
 	Name       string
 	Url        string
 }
@@ -32,3 +32,22 @@ SET
 func (s *Site) Save(db *sql.DB) {
 	db.Exec(upsertQuery, s.Url, s.Name)
 }
+
+func List(db *sql.DB) []Site {
+	rows, err := db.Query(`SELECT url, name, created_at FROM sites ORDER BY created_at DESC`)
+
+	if err != nil {
+		panic(err)
+	}
+	defer rows.Close()
+
+	sites := make([]Site, 0)
+
+	for rows.Next() {
+		s := Site{}
+		rows.Scan(&s.Url, &s.Name, &s.Created_at)
+		sites = append(sites, s)
+	}
+
+	return sites
+}