simplified some loops, added day2.md to test new footer date functionality

posts.go

@@ -5,6 +5,7 @@ import (
 	"embed"
 	"fmt"
 	"path/filepath"
+	"slices"
 	"sort"
 	"strings"
 	"time"
@@ -109,8 +110,8 @@ func parseFrontmatter(content string) (PostMeta, string, error) {
 			meta.Excerpt = v
 		case "tags":
 			if v != "" {
-				tags := strings.Split(v, ",")
-				for _, t := range tags {
+				tags := strings.SplitSeq(v, ",")
+				for t := range tags {
 					meta.Tags = append(meta.Tags, strings.TrimSpace(t))
 				}
 			}
@@ -307,11 +308,8 @@ func GetPostsByTag(tag string, page, per int) []models.Post {
 
 	var filtered []models.Post
 	for _, post := range posts {
-		for _, t := range post.Tags {
-			if t == tag {
-				filtered = append(filtered, post)
-				break
-			}
+		if slices.Contains(post.Tags, tag) {
+			filtered = append(filtered, post)
 		}
 	}
 
@@ -336,11 +334,8 @@ func GetTotalPagesByTag(tag string, per int) int {
 
 	count := 0
 	for _, post := range posts {
-		for _, t := range post.Tags {
-			if t == tag {
-				count++
-				break
-			}
+		if slices.Contains(post.Tags, tag) {
+			count++
 		}
 	}