import { test, expect, noteCard } from './helpers/fixtures.js';
import type { Page } from '@playwright/test';

/** Run a TipTap command chain via the exposed editor instance on the DOM element */
async function runTiptapCommand(page: Page, commandFn: string) {
	await page.getByTestId('tiptap-editor').evaluate(
		(el, fn) => {
			const editor = (el as any).__tiptapEditor;
			if (!editor) throw new Error('TipTap editor not found on element');
			new Function('editor', fn)(editor);
		},
		commandFn
	);
}

/** Type content into the TipTap editor via markdown mode (reliable for e2e) */
async function typeViaMarkdown(page: Page, content: string) {
	await page.getByTestId('markdown-toggle').click();
	await page.getByTestId('note-content-input').fill(content);
	await page.getByTestId('markdown-toggle').click();
}

test.describe('Rich text formatting', () => {
	test('Scenario: Bold shortcut formats selected text in the editor', async ({ authenticatedPage: page }) => {
		// Given the user is editing a new note with content "hello world"
		await page.getByTestId('new-note-btn').click();
		await typeViaMarkdown(page, 'hello world');
		const editor = page.getByTestId('tiptap-editor').locator('.tiptap');

		// When the user selects "world" and applies bold formatting
		await runTiptapCommand(page, 'editor.chain().focus().setTextSelection({from:7,to:12}).toggleBold().run()');

		// Then the selected text appears bold in the editor
		await expect(editor.locator('strong')).toHaveText('world');

		// And the markdown content contains bold syntax
		await page.getByTestId('markdown-toggle').click();
		await expect(page.getByTestId('note-content-input')).toHaveValue('hello **world**');
	});

	test('Scenario: Existing note shows rich text in TipTap editor', async ({ authenticatedPage: page }) => {
		// Given a note with bold markdown content exists
		await page.getByTestId('new-note-btn').click();
		await page.getByTestId('note-title-input').fill('Rich Text Note');
		await typeViaMarkdown(page, 'Hello **bold** world');
		await page.getByTestId('close-editor-btn').click();

		// When the user reopens the note
		await noteCard(page, 'Rich Text Note').click();

		// Then the content is rendered as rich text in the TipTap editor
		await expect(page.getByTestId('tiptap-editor')).toBeVisible();
		await expect(page.getByTestId('tiptap-editor').locator('strong')).toHaveText('bold');
	});

	test('Scenario: Toolbar dropdown closes when clicking outside', async ({ authenticatedPage: page }) => {
		// Given the user has opened the heading dropdown
		await page.getByTestId('new-note-btn').click();
		await page.getByTestId('format-heading').click();
		await expect(page.getByTestId('format-h1')).toBeVisible();

		// When the user clicks inside the editor area
		await page.getByTestId('tiptap-editor').click();

		// Then the dropdown closes
		await expect(page.getByTestId('format-h1')).not.toBeVisible();
	});

	test('Scenario: Link popover allows inserting a link inline', async ({ authenticatedPage: page }) => {
		// Given the user is editing a note with selected text
		await page.getByTestId('new-note-btn').click();
		await typeViaMarkdown(page, 'visit example');
		await runTiptapCommand(page, 'editor.chain().focus().setTextSelection({from:7,to:14}).run()');

		// When the user opens the link popover and enters a URL
		await page.getByTestId('format-link').click();
		await expect(page.getByTestId('format-link-input')).toBeVisible();
		await page.getByTestId('format-link-input').fill('https://example.com');
		await page.getByTestId('format-link-apply').click();

		// Then the selected text becomes a link
		const editor = page.getByTestId('tiptap-editor').locator('.tiptap');
		const link = editor.locator('a');
		await expect(link).toHaveText('example');
		await expect(link).toHaveAttribute('href', 'https://example.com');
	});

	test('Scenario: Markdown toggle shows raw markdown content', async ({ authenticatedPage: page }) => {
		// Given the user is editing a note with bold content
		await page.getByTestId('new-note-btn').click();
		await typeViaMarkdown(page, 'Hello **bold** world');

		// Verify the rich text renders correctly first
		const editor = page.getByTestId('tiptap-editor').locator('.tiptap');
		await expect(editor.locator('strong')).toHaveText('bold');

		// When the user toggles markdown mode
		await page.getByTestId('markdown-toggle').click();

		// Then the raw markdown textarea is shown with the markdown source
		await expect(page.getByTestId('note-content-input')).toBeVisible();
		await expect(page.getByTestId('tiptap-editor')).not.toBeVisible();
		await expect(page.getByTestId('note-content-input')).toHaveValue('Hello **bold** world');
	});
});