feat: wiki like linkage for posts

tests/renderer/components/InsertModal.test.tsx

@@ -1,7 +1,8 @@
 import React from 'react';
-import { describe, it, expect, vi } from 'vitest';
-import { render, screen } from '@testing-library/react';
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+import { render, screen, fireEvent, act } from '@testing-library/react';
 import { InsertModal } from '../../../src/renderer/components/InsertModal/InsertModal';
+import { useAppStore } from '../../../src/renderer/store/appStore';
 
 describe('InsertModal format hints', () => {
   it('shows canonical post link format hint in internal link mode', () => {
@@ -30,3 +31,170 @@ describe('InsertModal format hints', () => {
     expect(screen.getByText('Canonical: /media/YYYY/MM/file.ext')).toBeInTheDocument();
   });
 });
+
+describe('InsertModal create post', () => {
+  const mockOnInsertLink = vi.fn();
+  const mockOnClose = vi.fn();
+
+  beforeEach(() => {
+    vi.clearAllMocks();
+    useAppStore.setState({ tabs: [], activeTabId: 'current-post' });
+  });
+
+  it('does not show create option when query is shorter than 2 characters', () => {
+    render(
+      <InsertModal
+        mode="link"
+        onInsertLink={mockOnInsertLink}
+        onInsertImage={vi.fn()}
+        onClose={mockOnClose}
+      />
+    );
+
+    const input = screen.getByPlaceholderText('Search posts by title or content...');
+    fireEvent.input(input, { target: { value: 'a' } });
+
+    expect(screen.queryByText(/Create post/)).not.toBeInTheDocument();
+  });
+
+  it('does not show create option in image mode', async () => {
+    (window.electronAPI.media.search as ReturnType<typeof vi.fn>).mockResolvedValue([]);
+
+    render(
+      <InsertModal
+        mode="image"
+        onInsertLink={vi.fn()}
+        onInsertImage={vi.fn()}
+        onClose={mockOnClose}
+      />
+    );
+
+    const input = screen.getByPlaceholderText('Search media by name, title, or alt text...');
+    fireEvent.input(input, { target: { value: 'test query' } });
+
+    // Wait for search to complete by finding the no-results message
+    await screen.findByText(/No.*found/i);
+
+    expect(screen.queryByText(/Create post/)).not.toBeInTheDocument();
+  });
+
+  it('shows create option when search has no exact title match', async () => {
+    (window.electronAPI.posts.search as ReturnType<typeof vi.fn>).mockResolvedValue([
+      { id: 'p1', title: 'Different Title', slug: 'different-title', excerpt: 'Some text' },
+    ]);
+
+    render(
+      <InsertModal
+        mode="link"
+        onInsertLink={mockOnInsertLink}
+        onInsertImage={vi.fn()}
+        onClose={mockOnClose}
+      />
+    );
+
+    const input = screen.getByPlaceholderText('Search posts by title or content...');
+    fireEvent.input(input, { target: { value: 'My New Post' } });
+
+    // Wait for search results to render
+    await screen.findByText('Different Title');
+
+    expect(screen.getByText('Create post "My New Post"')).toBeInTheDocument();
+  });
+
+  it('does not show create option when an exact title match exists', async () => {
+    (window.electronAPI.posts.search as ReturnType<typeof vi.fn>).mockResolvedValue([
+      { id: 'p1', title: 'My New Post', slug: 'my-new-post', excerpt: '' },
+    ]);
+
+    render(
+      <InsertModal
+        mode="link"
+        onInsertLink={mockOnInsertLink}
+        onInsertImage={vi.fn()}
+        onClose={mockOnClose}
+      />
+    );
+
+    const input = screen.getByPlaceholderText('Search posts by title or content...');
+    fireEvent.input(input, { target: { value: 'My New Post' } });
+
+    // Wait for results to render (slug appears in the result path)
+    await screen.findByText(/my-new-post/);
+
+    expect(screen.queryByText('Create post "My New Post"')).not.toBeInTheDocument();
+  });
+
+  it('creates post and inserts link when create option is clicked', async () => {
+    (window.electronAPI.posts.search as ReturnType<typeof vi.fn>).mockResolvedValue([]);
+    (window.electronAPI.posts.create as ReturnType<typeof vi.fn>).mockResolvedValue({
+      id: 'new-post-id',
+      title: 'New Post Title',
+      slug: 'new-post-title',
+      content: '',
+      status: 'draft',
+      tags: ['tag1'],
+      categories: ['article'],
+      createdAt: new Date().toISOString(),
+      updatedAt: new Date().toISOString(),
+    });
+
+    render(
+      <InsertModal
+        mode="link"
+        onInsertLink={mockOnInsertLink}
+        onInsertImage={vi.fn()}
+        onClose={mockOnClose}
+        currentPostTags={['tag1']}
+        currentPostCategories={['article']}
+      />
+    );
+
+    const input = screen.getByPlaceholderText('Search posts by title or content...');
+    fireEvent.input(input, { target: { value: 'New Post Title' } });
+
+    // Wait for the create option to appear after debounced search completes
+    const createButton = await screen.findByText('Create post "New Post Title"');
+
+    await act(async () => {
+      fireEvent.click(createButton);
+    });
+
+    expect(window.electronAPI.posts.create).toHaveBeenCalledWith({
+      title: 'New Post Title',
+      tags: ['tag1'],
+      categories: ['article'],
+    });
+
+    expect(mockOnInsertLink).toHaveBeenCalledWith('/posts/new-post-title', 'New Post Title');
+    expect(mockOnClose).toHaveBeenCalled();
+
+    // Check that the tab was opened in the background
+    const storeState = useAppStore.getState();
+    expect(storeState.tabs).toContainEqual(
+      expect.objectContaining({ type: 'post', id: 'new-post-id', isTransient: false })
+    );
+    expect(storeState.activeTabId).toBe('current-post');
+  });
+
+  it('shows create option when no results exist (standalone)', async () => {
+    (window.electronAPI.posts.search as ReturnType<typeof vi.fn>).mockResolvedValue([]);
+
+    render(
+      <InsertModal
+        mode="link"
+        onInsertLink={mockOnInsertLink}
+        onInsertImage={vi.fn()}
+        onClose={mockOnClose}
+      />
+    );
+
+    const input = screen.getByPlaceholderText('Search posts by title or content...');
+    fireEvent.input(input, { target: { value: 'Nonexistent Post' } });
+
+    // Wait for create option to appear (replaces no-results message)
+    expect(await screen.findByText('Create post "Nonexistent Post"')).toBeInTheDocument();
+
+    // The "no results" message should not appear when create option is shown
+    expect(screen.queryByText(/No posts found/i)).not.toBeInTheDocument();
+  });
+});