feat: multiple changes

- implement changes from pair programming session
- use newParse.val()
- advance parser p if ct is found

Signed-off-by: Manik Rana <manikrana54@gmail.com>

model/textparse/openmetricsparse.go

@@ -21,7 +21,6 @@ import (
 	"fmt"
 	"io"
 	"math"
-	"strconv"
 	"strings"
 	"unicode/utf8"
 
@@ -224,44 +223,48 @@ func (p *OpenMetricsParser) Exemplar(e *exemplar.Exemplar) bool {
 // CreatedTimestamp returns nil as it's not implemented yet.
 // TODO(bwplotka): https://github.com/prometheus/prometheus/issues/12980
 func (p *OpenMetricsParser) CreatedTimestamp() *int64 {
+	var lbs labels.Labels
+	p.Metric(&lbs)
+	lbs = lbs.DropMetricName()
+
 	newParser := deepCopyParser(p)
+loop:
+	for {
 		switch t, _ := newParser.Next(); t {
 		case EntrySeries:
 			// continue instead of return nil until we get new series/labels. can happen for histograms, summaries
-			for { 
 			// Check _created suffix
-				var lbs labels.Labels
-				newParser.Metric(&lbs)
-				name := lbs.Get(model.MetricNameLabel)
-				if name[len(name)-8:] != "_created" { 
-					return nil
+			var newLbs labels.Labels
+			newParser.Metric(&newLbs)
+			name := newLbs.Get(model.MetricNameLabel)
+			if !strings.HasSuffix(name, "_created") {
+				continue
 			}
 
+			// TODO: potentially broken? Missing type?
 			if newParser.mName != p.mName {
 				return nil
 			}
 
 			// edge case: if guage_created of unknown type -> skip parsing
-
-				// Check if labelsets are the same
+			newLbs = newLbs.DropMetricName()
+			if !labels.Equal(lbs, newLbs) {
+				return nil
+			}
 
 			// TODO: for histograms
 			// if t, _ := newParser.Next(); t != EntrySeries {
 			// 	return nil
 			// }
 			
-				// return CT value
-				ctBytes := newParser.l.b[newParser.offsets[len(newParser.offsets)-1]+1:newParser.l.start]
-				ct, err := strconv.ParseInt(yoloString(ctBytes), 10, 64)
-				if err != nil {
-					return nil
-				}
-
 			// guage_created is a metric
+
+			ct := int64(newParser.val)
+			p.Next()
 			return &ct
-			}
 		default:
-			// If not series, we don't care.
+			break loop
+		}
 	}
 	return nil
 }