Keeping last project open

src/App.svelte

@@ -21,6 +21,7 @@
     templateRegistry,
     type CsoundTemplate,
   } from "./lib/templates/template-registry";
+  import { loadLastProjectId } from "./lib/project-system/persistence";
   import { createAppContext, setAppContext } from "./lib/contexts/app-context";
   import type { ProjectMode } from "./lib/project-system/types";
   import {
@@ -53,20 +54,43 @@
   onMount(async () => {
     await projectManager.init();
 
-    const result = await projectManager.getAllProjects();
-    if (result.success && result.data.length === 0) {
-      const classicTemplate = templateRegistry.getById("classic");
-      if (classicTemplate) {
-        await projectManager.createProject({
-          title: "Welcome",
-          author: "System",
-          content: classicTemplate.content,
-          tags: [],
-          mode: classicTemplate.mode,
-        });
+    const lastProjectId = loadLastProjectId();
+    let projectToLoad: CsoundProject | null = null;
+
+    if (lastProjectId) {
+      const result = await projectManager.getProject(lastProjectId);
+      if (result.success) {
+        projectToLoad = result.data;
       }
     }
 
+    if (!projectToLoad) {
+      const allProjectsResult = await projectManager.getAllProjects();
+      if (allProjectsResult.success) {
+        if (allProjectsResult.data.length > 0) {
+          projectToLoad = allProjectsResult.data[0];
+        } else {
+          const classicTemplate = templateRegistry.getById("classic");
+          if (classicTemplate) {
+            const createResult = await projectManager.createProject({
+              title: "Welcome",
+              author: "System",
+              content: classicTemplate.content,
+              tags: [],
+              mode: classicTemplate.mode,
+            });
+            if (createResult.success) {
+              projectToLoad = createResult.data;
+            }
+          }
+        }
+      }
+    }
+
+    if (projectToLoad) {
+      projectEditor.loadProject(projectToLoad);
+    }
+
     logsUnsubscribe = csoundDerived.logs.subscribe((logs) => {
       interpreterLogs = logs;
     });
@@ -344,6 +368,7 @@
         onExecute={handleExecute}
         logs={interpreterLogs}
         {editorSettings}
+        mode={projectEditor.currentProject?.mode || 'composition'}
       />
     </div>
 

src/lib/components/editor/Editor.svelte

@@ -25,13 +25,15 @@
     onChange?: (value: string) => void;
     onExecute?: (code: string, source: 'selection' | 'block' | 'document') => void;
     editorSettings: EditorSettingsStore;
+    mode: 'composition' | 'livecoding';
   }
 
   let {
     value = '',
     onChange,
     onExecute,
-    editorSettings
+    editorSettings,
+    mode = 'composition'
   }: Props = $props();
 
   let editorContainer: HTMLDivElement;
@@ -44,6 +46,13 @@
   function handleExecute() {
     if (!editorView) return;
 
+    if (mode === 'composition') {
+      const doc = getDocument(editorView.state);
+      flash(editorView, doc.from, doc.to);
+      onExecute?.(doc.text, 'document');
+      return;
+    }
+
     const selection = getSelection(editorView.state);
     if (selection.text) {
       flash(editorView, selection.from, selection.to);

src/lib/components/editor/EditorWithLogs.svelte

@@ -10,6 +10,7 @@
     onExecute?: (code: string, source: 'selection' | 'block' | 'document') => void;
     logs?: string[];
     editorSettings: EditorSettingsStore;
+    mode: 'composition' | 'livecoding';
   }
 
   let {
@@ -17,7 +18,8 @@
     onChange,
     onExecute,
     logs = [],
-    editorSettings
+    editorSettings,
+    mode = 'composition'
   }: Props = $props();
 
   let logPanelRef: LogPanel;
@@ -84,6 +86,7 @@
       {onChange}
       {onExecute}
       {editorSettings}
+      {mode}
     />
   </div>
 

src/lib/project-system/persistence.ts

@@ -0,0 +1,17 @@
+const LAST_PROJECT_KEY = 'oldboy:lastProjectId';
+
+export function saveLastProjectId(projectId: string | null): void {
+  if (projectId === null) {
+    localStorage.removeItem(LAST_PROJECT_KEY);
+  } else {
+    localStorage.setItem(LAST_PROJECT_KEY, projectId);
+  }
+}
+
+export function loadLastProjectId(): string | null {
+  return localStorage.getItem(LAST_PROJECT_KEY);
+}
+
+export function clearLastProjectId(): void {
+  localStorage.removeItem(LAST_PROJECT_KEY);
+}

src/lib/stores/projectEditor.svelte.ts

@@ -1,4 +1,5 @@
 import type { CsoundProject, ProjectManager } from '../project-system';
+import { saveLastProjectId } from '../project-system/persistence';
 
 interface ProjectEditorState {
   currentProject: CsoundProject | null;
@@ -54,6 +55,7 @@ export class ProjectEditor {
     this.state.content = project.content;
     this.state.hasUnsavedChanges = false;
     this.state.isNewUnsavedBuffer = false;
+    saveLastProjectId(project.id);
   }
 
   createNew(template: string) {
@@ -61,6 +63,7 @@ export class ProjectEditor {
     this.state.content = template;
     this.state.hasUnsavedChanges = false;
     this.state.isNewUnsavedBuffer = true;
+    saveLastProjectId(null);
   }
 
   async save(): Promise<boolean> {
@@ -105,6 +108,7 @@ export class ProjectEditor {
       this.state.currentProject = result.data;
       this.state.hasUnsavedChanges = false;
       this.state.isNewUnsavedBuffer = false;
+      saveLastProjectId(result.data.id);
       return true;
     }