refactor-code-modules (#1)

Co-authored-by: openhands <openhands@all-hands.dev>
Co-authored-by: Pijus Kamandulis <pkpjuklas@gmail.com>
Reviewed-on: #1

stats/stats.go

@@ -0,0 +1,72 @@
+package stats
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/ostafen/clover/v2"
+
+	"pool-stats/database"
+	"pool-stats/models"
+)
+
+func parseCreatedate(createdate string) time.Time {
+	parts := strings.Split(createdate, ",")
+	if len(parts) == 2 {
+		sec, _ := strconv.ParseInt(parts[0], 10, 64)
+		nsec, _ := strconv.ParseInt(parts[1], 10, 64)
+		return time.Unix(sec, nsec)
+	}
+	return time.Time{}
+}
+
+func humanDiff(diff float64) string {
+	units := []string{"", "K", "M", "G", "T"}
+	i := 0
+	for diff >= 1000 && i < len(units)-1 {
+		diff /= 1000
+		i++
+	}
+	return fmt.Sprintf("%.2f%s", diff, units[i])
+}
+
+func GetStats(db *clover.DB) ([]models.ShareStat, error) {
+	now := time.Now()
+	ranges := []struct {
+		Label string
+		Since time.Time
+	}{
+		{"Past Hour", now.Add(-1 * time.Hour)},
+		{"Past 24h", now.Add(-24 * time.Hour)},
+		{"Past 7d", now.Add(-7 * 24 * time.Hour)},
+	}
+
+	stats := []models.ShareStat{}
+
+	// All-time highest
+	doc, _ := database.GetHighestShareInRange(db, database.CollectionName, time.Unix(0, 0))
+	if doc != nil {
+		stats = append(stats, models.ShareStat{
+			Label: "All Time",
+			Diff:  humanDiff(doc.Get("SDiff").(float64)),
+			Time:  parseCreatedate(doc.Get("CreateDate").(string)).Format(time.RFC822),
+		})
+	}
+
+	for _, r := range ranges {
+		doc, _ := database.GetHighestShareInRange(db, database.CollectionName, r.Since)
+		if doc != nil {
+			stats = append(stats, models.ShareStat{
+				Label: r.Label,
+				Diff:  humanDiff(doc.Get("SDiff").(float64)),
+				Time:  parseCreatedate(doc.Get("CreateDate").(string)).Format(time.RFC822),
+			})
+		} else {
+			stats = append(stats, models.ShareStat{Label: r.Label, Diff: "-", Time: "-"})
+		}
+	}
+
+	return stats, nil
+}