From 0b501d1f0bacd4f129cab36e179bca16836f1d33 Mon Sep 17 00:00:00 2001
From: Nikolai Shabalin <dev.nikolai.shabalin@gmail.com>
Date: Sat, 8 Jul 2023 12:11:10 +0300
Subject: [PATCH 1/3] Adds htmlacademy/section-has-heading

---
 rules/section-has-heading/README.md | 28 ++++++++++++++++++++++++++
 rules/section-has-heading/index.js  | 31 +++++++++++++++++++++++++++++
 2 files changed, 59 insertions(+)
 create mode 100644 rules/section-has-heading/README.md
 create mode 100644 rules/section-has-heading/index.js

diff --git a/rules/section-has-heading/README.md b/rules/section-has-heading/README.md
new file mode 100644
index 0000000..c3062df
--- /dev/null
+++ b/rules/section-has-heading/README.md
@@ -0,0 +1,28 @@
+# htmlacademy/section-has-heading
+
+Правило проверяет наличие заголовка любого уровня h1-h6 у `<section>`. Правило принимает значения `true` или `false`
+
+## true
+У `<section>` есть дочерний заголовок любого уровня h1-h6.
+
+Проблемными считаются следующие шаблоны:
+```html
+<section>
+  ...
+</section>
+```
+
+Следующие шаблоны **не** считаются проблемами:
+```html
+ <section>
+  <h2>title</h2>
+</section>
+
+ <section>
+   <div>
+      <h2>title</h2>
+   </div>
+</section>
+```
+
+Вложенность заголовка(h1-h6) может быть любой.
diff --git a/rules/section-has-heading/index.js b/rules/section-has-heading/index.js
new file mode 100644
index 0000000..64b28d8
--- /dev/null
+++ b/rules/section-has-heading/index.js
@@ -0,0 +1,31 @@
+const { is_tag_node } = require("@linthtml/dom-utils");
+
+const isSectionElement = (node) => is_tag_node(node) && node.name === "section";
+const isHeadingElement = (node) => is_tag_node(node) && /^h[1-6]$/.test(node.name);
+const checkChildNode = (node) => {
+  if (isHeadingElement(node)) {
+    return true;
+  }
+
+  if (node.children) {
+    for (const child of node.children) {
+      if (checkChildNode(child)) {
+        return true;
+      }
+    }
+  }
+
+  return false;
+};
+
+module.exports = {
+  name: "htmlacademy/section-has-heading",
+  lint(node, rule_config, { report }) {
+    if (isSectionElement(node) && !checkChildNode(node)) {
+      report({
+        position: node.loc,
+        message: "The <section> element must contain a heading of any level.",
+      });
+    }
+  }
+};

From 5feef054736b02f9f6b72c4be939ea498fd4716c Mon Sep 17 00:00:00 2001
From: Nikolai Shabalin <dev.nikolai.shabalin@gmail.com>
Date: Sat, 8 Jul 2023 12:11:38 +0300
Subject: [PATCH 2/3] Update CHANGELOG.md

---
 CHANGELOG.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5d82fa8..5b2312b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Changelog
 
+## 1.0.5
+Adds new rule htmlacademy/section-has-heading
+
 ## 1.0.4
 Fixed name for `head-meta-charset`
 

From 9102d5a4592283a0425789d0ec368fb8e13092eb Mon Sep 17 00:00:00 2001
From: Nikolai Shabalin <dev.nikolai.shabalin@gmail.com>
Date: Sun, 9 Jul 2023 12:18:27 +0300
Subject: [PATCH 3/3] Filters svg elements

---
 rules/section-has-heading/index.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/rules/section-has-heading/index.js b/rules/section-has-heading/index.js
index 64b28d8..0509970 100644
--- a/rules/section-has-heading/index.js
+++ b/rules/section-has-heading/index.js
@@ -2,12 +2,13 @@ const { is_tag_node } = require("@linthtml/dom-utils");
 
 const isSectionElement = (node) => is_tag_node(node) && node.name === "section";
 const isHeadingElement = (node) => is_tag_node(node) && /^h[1-6]$/.test(node.name);
+const isNotSvg = (node) => node.name !== 'svg';
 const checkChildNode = (node) => {
   if (isHeadingElement(node)) {
     return true;
   }
 
-  if (node.children) {
+  if (node.children && isNotSvg(node)) {
     for (const child of node.children) {
       if (checkChildNode(child)) {
         return true;