fix(html): preserve each path prefixes

Co-Authored-By: Virgil <virgil@lethean.io>

node.go

@@ -36,6 +36,8 @@ func renderNodeWithPath(n Node, ctx *Context, path string) string {
 		clone := *t
 		clone.path = path
 		return clone.Render(ctx)
+	case interface{ renderWithPath(*Context, string) string }:
+		return t.renderWithPath(ctx, path)
 	case *ifNode:
 		if t.cond(ctx) {
 			return renderNodeWithPath(t.node, ctx, path)
@@ -352,3 +354,15 @@ func (n *eachNode[T]) Render(ctx *Context) string {
 	}
 	return b.String()
 }
+
+func (n *eachNode[T]) renderWithPath(ctx *Context, path string) string {
+	if n == nil || n.items == nil || n.fn == nil {
+		return ""
+	}
+
+	var b strings.Builder
+	for item := range n.items {
+		b.WriteString(renderNodeWithPath(n.fn(item), ctx, path))
+	}
+	return b.String()
+}

path_test.go

@@ -3,6 +3,8 @@ package html
 import (
 	"strings"
 	"testing"
+
+	"slices"
 )
 
 func TestNestedLayout_PathChain(t *testing.T) {
@@ -78,6 +80,35 @@ func TestNestedLayout_ThroughSwitchWrapper(t *testing.T) {
 	}
 }
 
+func TestNestedLayout_ThroughEachWrapper(t *testing.T) {
+	ctx := NewContext()
+
+	items := []int{1, 2}
+	node := Each(items, func(i int) Node {
+		return NewLayout("C").C(Raw(strings.Repeat("x", i)))
+	})
+
+	got := NewLayout("C").C(node).Render(ctx)
+
+	if count := strings.Count(got, `data-block="C-0-C-0"`); count != 2 {
+		t.Fatalf("each wrapper should preserve nested block path twice, got %d in:\n%s", count, got)
+	}
+}
+
+func TestNestedLayout_ThroughEachSeqWrapper(t *testing.T) {
+	ctx := NewContext()
+
+	node := EachSeq(slices.Values([]string{"a", "b"}), func(s string) Node {
+		return NewLayout("C").C(Raw(s))
+	})
+
+	got := NewLayout("C").C(node).Render(ctx)
+
+	if count := strings.Count(got, `data-block="C-0-C-0"`); count != 2 {
+		t.Fatalf("eachseq wrapper should preserve nested block path twice, got %d in:\n%s", count, got)
+	}
+}
+
 func TestBlockID(t *testing.T) {
 	tests := []struct {
 		path string