Remove deleted projects from project manager

Signed-off-by: pconroy <pconroy@amazon.com>

Code/Tools/ProjectManager/Source/ProjectsScreen.cpp

@@ -119,6 +119,8 @@ namespace O3DE::ProjectManager
 
     QFrame* ProjectsScreen::CreateProjectsContent(QString buildProjectPath, ProjectButton** projectButton)
     {
+        RemoveInvalidProjects();
+
         QFrame* frame = new QFrame(this);
         frame->setObjectName("projectsContent");
         {
@@ -481,6 +483,11 @@ namespace O3DE::ProjectManager
         return displayFirstTimeContent;
     }
 
+    void ProjectsScreen::RemoveInvalidProjects()
+    {
+        PythonBindingsInterface::Get()->RemoveInvalidProjects();
+    }
+
     void ProjectsScreen::StartProjectBuild(const ProjectInfo& projectInfo)
     {
         if (ProjectUtils::IsVS2019Installed())

Code/Tools/ProjectManager/Source/ProjectsScreen.h

@@ -59,6 +59,7 @@ namespace O3DE::ProjectManager
         ProjectButton* CreateProjectButton(ProjectInfo& project, QLayout* flowLayout, bool processing = false);
         void ResetProjectsContent();
         bool ShouldDisplayFirstTimeContent();
+        void RemoveInvalidProjects();
 
         void StartProjectBuild(const ProjectInfo& projectInfo);
         QList<ProjectInfo>::iterator RequiresBuildProjectIterator(const QString& projectPath);

Code/Tools/ProjectManager/Source/PythonBindings.cpp

@@ -755,6 +755,15 @@ namespace O3DE::ProjectManager
         });
     }
 
+    void PythonBindings::RemoveInvalidProjects()
+    {
+        ExecuteWithLockErrorHandling(
+            [&]
+            {
+                m_register.attr("remove_invalid_o3de_projects")();
+            });
+    }
+
     AZ::Outcome<void, AZStd::string> PythonBindings::UpdateProject(const ProjectInfo& projectInfo)
     {
         bool updateProjectSucceeded = false;

Code/Tools/ProjectManager/Source/PythonBindings.h

@@ -50,6 +50,7 @@ namespace O3DE::ProjectManager
         AZ::Outcome<void, AZStd::string> UpdateProject(const ProjectInfo& projectInfo) override;
         AZ::Outcome<void, AZStd::string> AddGemToProject(const QString& gemPath, const QString& projectPath) override;
         AZ::Outcome<void, AZStd::string> RemoveGemFromProject(const QString& gemPath, const QString& projectPath) override;
+        void RemoveInvalidProjects() override;
 
         // ProjectTemplate
         AZ::Outcome<QVector<ProjectTemplateInfo>> GetProjectTemplates(const QString& projectPath = {}) override;

Code/Tools/ProjectManager/Source/PythonBindingsInterface.h

@@ -141,6 +141,11 @@ namespace O3DE::ProjectManager
          */
         virtual AZ::Outcome<void, AZStd::string> RemoveGemFromProject(const QString& gemPath, const QString& projectPath) = 0;
 
+        /**
+         * Removes invalid projects from the manifest
+         */
+        virtual void RemoveInvalidProjects() = 0;
+
 
         // Project Templates