NoteSpace

using NoteSpace.Core;
using NoteSpace.Editor;

var session = new EditorSession(SampleWorkspace.Create());
session.Changed += (_, change) => Console.WriteLine(change.Description);

var page = session.AddPage(session.Pages.First().Section.Id, "Draft notes");
session.AddBlock(page.Id, SampleWorkspace.Text("First draft of the plan", 48, 140, 520, 80));
session.EditPage(page.Id, "Bold first word", p => RichText.Apply(p.Blocks[0], 0, 5, f => f.Bold = true));

var query = new NoteSearchQuery("draft") { Scope = NoteSearchScope.Page, ScopeId = page.Id, WholeWord = true };
var hits = session.Search(query).ToList();
NoteReplaceResult result = session.ReplaceAll(query, "reviewed");   // one undoable transaction
Console.WriteLine($"{hits.Count} hits, {result.Matches} replaced; undo: {session.UndoDescription}");
session.Undo();

using NoteSpace.Core;
using NoteSpace.Storage;

var store = new FileWorkspaceStore(Path.Combine(AppContext.BaseDirectory, "workspace.notespace"));
StoredWorkspace? stored = await store.LoadAsync();
Workspace workspace = stored?.Document ?? SampleWorkspace.Create();
try
{
    string token = await store.SaveSnapshotAsync(WorkspaceSnapshot.Capture(workspace), stored?.Token);
}
catch (StorageConflictException) { /* Changed elsewhere: export, then reload before saving. */ }

var page = workspace.Notebooks[0].Sections[0].Pages[0];
File.WriteAllText("page.md", NoteExport.Markdown(page));
NotePage imported = NoteExport.ImportText("Shopping\n\n[ ] Milk", "Imported");

using NoteSpace.Core;
using NoteSpace.Rendering.Skia;
using SkiaSharp;

var page = SampleWorkspace.Create().Notebooks[0].Sections[0].Pages[0];
using var renderer = new PageRenderer();                  // dispose to release native caches
File.WriteAllBytes("page.png", renderer.ExportPng(page, scale: 2));

using var surface = SKSurface.Create(new SKImageInfo(1024, 768));
renderer.Render(surface.Canvas, page, 1024, 768, new RenderOptions { Zoom = 1.25f, ContentRevision = 1 });
Console.WriteLine($"{renderer.Statistics.BlocksDrawn} blocks drawn");

using Microsoft.UI.Xaml;
using Microsoft.UI.Xaml.Controls;
using NoteSpace.Controls;
using NoteSpace.Core;
using NoteSpace.Editor;

var session = new EditorSession(SampleWorkspace.Create());
var surface = new NoteSurface { Session = session };
surface.Error += (_, message) => Console.WriteLine(message);

var ribbon = new RibbonControl();
ribbon.Configure([new RibbonTab("Draw", [new RibbonGroup("Tools", [new RibbonCommand("pen", "Pen", "pen"), new RibbonCommand("select", "Select", "page")])])], OfficeTheme.Light, collapsed: false);
ribbon.CommandInvoked += (_, id) => surface.Tool = id == "pen" ? DrawingTool.Pen : DrawingTool.Select;

var root = new Grid { RowDefinitions = { new RowDefinition { Height = GridLength.Auto }, new RowDefinition() } };
Grid.SetRow(surface, 1);
root.Children.Add(ribbon); root.Children.Add(surface);
window.Content = root;
window.Closed += (_, _) => surface.Dispose();              // subscribe to session.Changed for persistence