From 7cb21981aca82ceea060f4d507f3b7af02bd556f Mon Sep 17 00:00:00 2001
From: TechnicJelle <22576047+TechnicJelle@users.noreply.github.com>
Date: Mon, 28 Oct 2024 01:56:13 +0100
Subject: [PATCH] Split project directory existing or not into separate concept

from the `_PickingState`.
---
 lib/main_menu/projects/project_tile.dart | 111 ++++++++++++++++-------
 1 file changed, 76 insertions(+), 35 deletions(-)

diff --git a/lib/main_menu/projects/project_tile.dart b/lib/main_menu/projects/project_tile.dart
index 5819c53..647be13 100644
--- a/lib/main_menu/projects/project_tile.dart
+++ b/lib/main_menu/projects/project_tile.dart
@@ -1,3 +1,4 @@
+import "dart:async";
 import "dart:io";
 
 import "package:flutter/material.dart";
@@ -6,6 +7,7 @@ import "package:path/path.dart" as p;
 import "package:url_launcher/url_launcher.dart";
 import "package:url_launcher/url_launcher_string.dart";
 
+import "../../confirmation_dialog.dart";
 import "../../hover.dart";
 import "../../main.dart";
 import "../../prefs.dart";
@@ -14,7 +16,6 @@ import "projects_screen.dart";
 
 enum _PickingState {
   nothing,
-  directoryNotFound,
   scanning,
   downloading,
   downloadFailed,
@@ -48,19 +49,33 @@ class _PathPickerButtonState extends ConsumerState<ProjectTile> {
       () => _PickingStateNotifier());
   String? errorText;
 
+  late final StreamSubscription<FileSystemEvent> fileWatchSub;
+  late bool projectDirectoryExists;
+
   Directory get projectDirectory => widget.projectDirectory;
 
+  String get projectName => p.basename(projectDirectory.path);
+
   @override
   void initState() {
     super.initState();
+    projectDirectoryExists = projectDirectory.existsSync();
 
-    projectDirectory.exists().then((bool exists) {
-      if (!exists) {
-        ref.read(_pickingStateProvider.notifier).set(_PickingState.directoryNotFound);
-      }
+    fileWatchSub = projectDirectory.parent.watch().listen((FileSystemEvent event) {
+      projectDirectory.exists().then((bool exists) {
+        if (mounted) {
+          setState(() => projectDirectoryExists = exists);
+        }
+      });
     });
   }
 
+  @override
+  void dispose() {
+    fileWatchSub.cancel();
+    super.dispose();
+  }
+
   @override
   Widget build(BuildContext context) {
     final _PickingState pickingState = ref.watch(_pickingStateProvider);
@@ -68,12 +83,22 @@ class _PathPickerButtonState extends ConsumerState<ProjectTile> {
       alwaysChild: switch (pickingState) {
         //TODO: The states other than ListTile should get more polish
         _PickingState.nothing => ListTile(
-            title: Text(p.basename(projectDirectory.path)),
-            subtitle: Text(projectDirectory.path),
+            enabled: projectDirectoryExists,
             onTap: openProject,
+            title: Text(projectName),
+            subtitle: Wrap(
+              spacing: 12,
+              runSpacing: 2,
+              children: [
+                Text(projectDirectory.path),
+                if (!projectDirectoryExists)
+                  Text(
+                    "Error: Directory not found",
+                    style: TextStyle(color: Colors.red[600]),
+                  ),
+              ],
+            ),
           ),
-        _PickingState.directoryNotFound =>
-          Text("Directory ${projectDirectory.path} not found!"),
         _PickingState.scanning => Column(
             mainAxisSize: MainAxisSize.min,
             children: [
@@ -160,41 +185,57 @@ class _PathPickerButtonState extends ConsumerState<ProjectTile> {
       hoverChild: Positioned(
         right: 16,
         top: 12,
-        child: PopupMenuButton(
-          itemBuilder: (BuildContext context) => <PopupMenuEntry>[
-            PopupMenuItem(
-              child: const Row(
-                children: [
-                  Icon(Icons.folder_open),
-                  SizedBox(width: 8),
-                  Text("Open in file manager"),
+        child: projectDirectoryExists
+            ? PopupMenuButton(
+                itemBuilder: (BuildContext context) => <PopupMenuEntry>[
+                  PopupMenuItem(
+                    enabled: projectDirectoryExists,
+                    child: const Row(
+                      children: [
+                        Icon(Icons.folder_open),
+                        SizedBox(width: 8),
+                        Text("Open in file manager"),
+                      ],
+                    ),
+                    onTap: () => launchUrl(projectDirectory.uri),
+                    // does nothing when dir doesn't exist ↑
+                  ),
+                  PopupMenuItem(
+                    child: const Row(
+                      children: [
+                        Icon(Icons.clear),
+                        SizedBox(width: 8),
+                        Text("Remove from projects"),
+                      ],
+                    ),
+                    onTap: () => removeProjectFromList(),
+                  ),
                 ],
+              )
+            : IconButton(
+                onPressed: () => removeProjectFromList(),
+                icon: const Icon(Icons.clear),
               ),
-              onTap: () => launchUrl(projectDirectory.uri),
-              // does nothing when dir doesn't exist ↑
-            ),
-            PopupMenuItem(
-              child: const Row(
-                children: [
-                  Icon(Icons.clear),
-                  SizedBox(width: 8),
-                  Text("Remove from projects"),
-                ],
-              ),
-              onTap: () => ref
-                  .read(knownProjectsProvider.notifier)
-                  .removeProject(projectDirectory),
-            ),
-          ],
-        ),
       ),
     );
   }
 
+  void removeProjectFromList() {
+    showConfirmationDialog(
+      context: context,
+      title: "Remove Project",
+      content: [
+        Text("Are you sure you want to remove $projectName from the projects list?"),
+      ],
+      confirmAction: "Yes",
+      onConfirmed: () =>
+          ref.read(knownProjectsProvider.notifier).removeProject(projectDirectory),
+    );
+  }
+
   Future<void> openProject() async {
     // == Check if project directory exists ==
     if (!projectDirectory.existsSync()) {
-      ref.read(_pickingStateProvider.notifier).set(_PickingState.directoryNotFound);
       return;
     }