add pin login and add pin code

lib/pages/main/home_page.dart

@@ -203,9 +203,27 @@ class _HomePageState extends State<HomePage> {
     super.dispose();
   }
 
+  _logoutPinAccount() async {
+    setState(() {
+      _isLoading = true;
+    });
+
+    try {
+      await context.read<MainModel>().logoutPinAccount();
+      Navigator.pushNamedAndRemoveUntil(context, "/pin_login", (r) => false);
+    } catch (e) {
+      showMsgDialog(context, "Error", e.toString());
+    } finally {
+      setState(() {
+        _isLoading = false;
+      });
+    }
+  }
+
   @override
   Widget build(BuildContext context) {
-    User? user = Provider.of<MainModel>(context).user;
+    var mainModel = context.watch<MainModel>();
+    User? user = mainModel.user;
 
     if (user == null) {
       Future.microtask(
@@ -213,7 +231,7 @@ class _HomePageState extends State<HomePage> {
       return Container();
     }
 
-    login = Provider.of<MainModel>(context).isLogin();
+    login = mainModel.isLogin();
     LanguageModel languageModel = Provider.of<LanguageModel>(context);
 
     final faqBtn = TaskButton("faq.btn",
@@ -357,7 +375,7 @@ class _HomePageState extends State<HomePage> {
       selectedColor: Colors.white,
       color: Colors.blue,
       children: <Widget>[
-        Icon(MaterialCommunityIcons.account_tie,size: 25),
+        Icon(MaterialCommunityIcons.account_tie, size: 25),
       ],
       onPressed: (i) => this.setState(() {
         isFcs[0] = !isFcs[0];
@@ -387,11 +405,14 @@ class _HomePageState extends State<HomePage> {
         color: buttonColor,
       ),
     );
-    
+
     final pinLoginBtn = IconButton(
       onPressed: () {
-        Navigator.of(context)
-            .push(CupertinoPageRoute(builder: (context) => PinLoginPage()));
+        Navigator.pushAndRemoveUntil(
+            context,
+            CupertinoPageRoute(
+                builder: (BuildContext context) => PinLoginPage()),
+            (r) => false);
       },
       iconSize: 25,
       icon: Icon(
@@ -400,6 +421,19 @@ class _HomePageState extends State<HomePage> {
       ),
     );
 
+    final pinLogoutBtn = IconButton(
+      onPressed: () {
+        showConfirmDialog(context, "home.pin.logout.confirm", () async {
+          await _logoutPinAccount();
+        });
+      },
+      iconSize: 25,
+      icon: Icon(
+        MaterialCommunityIcons.lock_open_variant_outline,
+        color: buttonColor,
+      ),
+    );
+
     var searchInput = Row(children: [
       Expanded(
         child: Padding(
@@ -478,7 +512,7 @@ class _HomePageState extends State<HomePage> {
                               profileBtn,
                             ]
                           : <Widget>[
-                              pinLoginBtn,
+                              mainModel.isPinLogin ? pinLogoutBtn : pinLoginBtn,
                               fcsToggle,
                               profileBtn,
                             ]