From 3b35424a0c42cdb694e7836b6fda4c5873746557 Mon Sep 17 00:00:00 2001
From: Chris Cochrun <chris@cochrun.xyz>
Date: Fri, 17 Feb 2023 13:12:23 -0600
Subject: [PATCH] adding validation for files to make sure the underlying
 filesystem hasn't deleted or moved files in the database

---
 src/qml/presenter/Library.qml | 41 ++++++++++++++++++++++++++++-------
 src/rust/file_helper.rs       | 19 ++++++++++++++++
 2 files changed, 52 insertions(+), 8 deletions(-)

diff --git a/src/qml/presenter/Library.qml b/src/qml/presenter/Library.qml
index 51c9577..96c5653 100644
--- a/src/qml/presenter/Library.qml
+++ b/src/qml/presenter/Library.qml
@@ -485,16 +485,25 @@ Item {
                     Item{
                         implicitWidth: ListView.view.width
                         height: selectedLibrary == "videos" ? 50 : 0
+
                         Kirigami.BasicListItem {
                             id: videoListItem
 
                             property bool rightMenu: false
+                            property bool fileValidation: fileHelper.validate(filePath)
 
                             implicitWidth: videoLibraryList.width
                             height: selectedLibrary == "videos" ? 50 : 0
                             clip: true
                             label: title
-                            /* subtitle: author */
+                            icon: "folder-videos-symbolic"
+                            iconSize: Kirigami.Units.gridUnit
+                            subtitle: {
+                                if (fileValidation)
+                                    filePath;
+                                else
+                                    "file is missing"
+                            }
                             supportsMouseEvents: false
                             backgroundColor: {
                                 if (parent.ListView.isCurrentItem) {
@@ -506,10 +515,14 @@ Item {
                                 }
                             }
                             textColor: {
-                                if (parent.ListView.isCurrentItem || videoDragHandler.containsMouse)
-                                    activeTextColor;
+                                if (fileValidation) {
+                                    if (parent.ListView.isCurrentItem || videoDragHandler.containsMouse)
+                                        activeTextColor;
+                                    else
+                                        Kirigami.Theme.textColor;
+                                }
                                 else
-                                    Kirigami.Theme.textColor;
+                                    "red"
                             }
 
                             Behavior on height {
@@ -772,12 +785,20 @@ Item {
                             id: imageListItem
 
                             property bool rightMenu: false
+                            property bool fileValidation: fileHelper.validate(filePath)
 
                             implicitWidth: imageLibraryList.width
                             height: selectedLibrary == "images" ? 50 : 0
                             clip: true
                             label: title
-                            /* subtitle: author */
+                            icon: "folder-pictures-symbolic"
+                            iconSize: Kirigami.Units.gridUnit
+                            subtitle: {
+                                if (fileValidation)
+                                    filePath;
+                                else
+                                    "file is missing"
+                            }
                             supportsMouseEvents: false
                             backgroundColor: {
                                 if (parent.ListView.isCurrentItem) {
@@ -789,10 +810,14 @@ Item {
                                 }
                             }
                             textColor: {
-                                if (parent.ListView.isCurrentItem || imageDragHandler.containsMouse)
-                                    activeTextColor;
+                                if (fileValidation) {
+                                    if (parent.ListView.isCurrentItem || imageDragHandler.containsMouse)
+                                        activeTextColor;
+                                    else
+                                        Kirigami.Theme.textColor;
+                                }
                                 else
-                                    Kirigami.Theme.textColor;
+                                    "red"
                             }
 
                             Behavior on height {
diff --git a/src/rust/file_helper.rs b/src/rust/file_helper.rs
index 6538ebf..c46dcd2 100644
--- a/src/rust/file_helper.rs
+++ b/src/rust/file_helper.rs
@@ -1,6 +1,7 @@
 #[cxx_qt::bridge]
 mod file_helper {
     use cxx_qt_lib::QVariantValue;
+    use std::path::Path;
 
     unsafe extern "C++" {
         include!("cxx-qt-lib/qstring.h");
@@ -47,5 +48,23 @@ mod file_helper {
             println!("{}", file);
             return vec!["hi".to_string()];
         }
+
+        #[qinvokable]
+        pub fn validate(self: Pin<&mut Self>, file: QUrl) -> bool {
+            let file_string = file.to_string();
+            let _file_string = file_string.strip_prefix("file://");
+            match _file_string {
+                None => {
+                    let _exists = Path::new(&file.to_string()).exists();
+                    println!("{} does not exist", file.to_string());
+                    _exists
+                }
+                Some(file) => {
+                    let _exists = Path::new(&file).exists();
+                    println!("{} exists? {_exists}", file);
+                    _exists
+                }
+            }
+        }
     }
 }