import { readFileSync } from 'node:fs';
import { resolve } from 'node:path';
import { describe, expect, it } from 'vitest';
import { validateProductionInputs } from '@/content/schemas';
import { render } from '@/entry-server';
import type { SectionId } from '@/content/types';

const fixture = (name: string): unknown =>
  JSON.parse(readFileSync(resolve(process.cwd(), 'tests/fixtures', name), 'utf8'));

const validInputs = validateProductionInputs(
  fixture('portfolio-content.valid.json'),
  fixture('asset-manifest.valid.json'),
  fixture('site-config.preview.json'),
  new URL('file:///prepared-assets/'),
);

const renderedDocument = async (): Promise<Document> => {
  return renderedDocumentFor(validInputs);
};

const renderedDocumentFor = async (inputs: typeof validInputs): Promise<Document> => {
  const document = globalThis.document.implementation.createHTMLDocument('Portfolio');
  document.body.innerHTML = await render('/', inputs);
  return document;
};

describe('semantic portfolio document', () => {
  it('renders the complete landmark and heading reading structure on the server', async () => {
    const document = await renderedDocument();

    expect(document.querySelectorAll('.site-header')).toHaveLength(1);
    expect(document.querySelector('nav[aria-label="Portfolio sections"]')).not.toBeNull();
    expect(document.querySelectorAll('main')).toHaveLength(1);
    expect(document.querySelectorAll('footer')).toHaveLength(1);
    expect(document.querySelectorAll('h1')).toHaveLength(1);
    expect(document.querySelector('#start h1')?.textContent).toBe('Luca Pîslaru');
    expect([...document.querySelectorAll('main > section')].map((section) => section.id)).toEqual([
      'start', 'profile', 'experience', 'infrastructure', 'selected-builds', 'additional-work', 'toolkit', 'contact',
    ]);
    expect([...document.querySelectorAll('main > section')].every((section) => section.hasAttribute('aria-labelledby'))).toBe(true);
    expect([...document.querySelectorAll('main > section > h2')].map((heading) => heading.textContent)).toEqual([
      'Profile', 'Experience', 'Infrastructure', 'Selected builds', 'Additional work', 'Toolkit', 'Contact',
    ]);
    expect([...document.querySelectorAll('main > section')].map((section) => section.getAttribute('data-layout'))).toEqual([
      'hero', 'right-rail', 'left-timeline', 'full-diagram', 'project-stage', 'compact-rail', 'toolkit-field', 'destination',
    ]);
    expect(document.querySelectorAll('.route-label')).toHaveLength(0);
    expect(document.querySelector('h2 + h4')).toBeNull();
  });

  it('renders the exact first-screen hierarchy and destination actions', async () => {
    const document = await renderedDocument();
    const hero = document.querySelector('.hero-journey__content')!;

    expect([...hero.children].flatMap((element) =>
      element.classList.contains('hero-journey__actions')
        ? [...element.children].map((action) => action.textContent?.trim())
        : [element.textContent?.trim()],
    )).toEqual([
      'Luca Pîslaru',
      'System Administrator & Full-Stack Developer',
      validInputs.content.identity.valueProposition,
      validInputs.content.identity.availability,
      'Contact Me',
      'Explore work',
    ]);
    expect(hero.querySelector('a[href="#contact"]')?.textContent).toBe('Contact Me');
    expect(document.querySelector('[data-featured-operation]')?.textContent).toContain(
      validInputs.content.infrastructure.featuredOperation.title,
    );
    expect(document.querySelector('#contact')?.textContent).toContain('System Administrator');
    expect(document.body.textContent).not.toMatch(/[–—]/u);
  });

  it('assigns explicit project priority without promoting research exploration', async () => {
    const document = await renderedDocument();
    const priorities = [...document.querySelectorAll('#selected-builds article')].map((article) => [
      article.querySelector('h3')?.textContent,
      article.getAttribute('data-project-priority'),
    ]);

    expect(priorities).toEqual([
      ['Private self-hosted medication tracker', 'primary'],
      ['Footy Tracker', 'primary'],
      ['Opinion Dynamics Simulation', 'supporting'],
    ]);
  });

  it('keeps native section links and visible contact available without JavaScript', async () => {
    const document = await renderedDocument();
    const navigation = document.querySelector('nav[aria-label="Portfolio sections"]')!;

    expect([...navigation.querySelectorAll('a')].map((link) => link.getAttribute('href'))).toEqual([
      '#start', '#profile', '#experience', '#infrastructure', '#selected-builds', '#additional-work', '#toolkit', '#contact',
    ]);
    const email = document.querySelector('#contact-email-details');
    expect(email?.querySelector('summary')?.textContent).toBe('Email Me');
    expect(email?.textContent).toContain('hello [at] example [dot] test');
    expect(document.querySelector('a[href^="mailto:"]')).toBeNull();
    expect(document.body.textContent).toContain('For a current CV or role-specific information, contact me directly.');
  });

  it('renders one semantic navigation label with no duplicate responsive text', async () => {
    const document = await renderedDocument();
    const experience = document.querySelector('nav a[href="#experience"]')!;
    const additional = document.querySelector('nav a[href="#additional-work"]')!;

    expect(experience.hasAttribute('aria-label')).toBe(false);
    expect(experience.textContent).toBe('Career');
    expect(experience.childElementCount).toBe(0);
    expect(additional.hasAttribute('aria-label')).toBe(false);
    expect(additional.textContent).toBe('More work');
    expect(additional.childElementCount).toBe(0);
  });

  it('binds navigation and section labels to their canonical IDs when content navigation is reordered', async () => {
    const content = fixture('portfolio-content.valid.json') as {
      navigation: Array<{ id: SectionId; label: string }>;
    };
    const navigationById = new Map(content.navigation.map((item) => [item.id, item]));
    const reorderedIds: readonly SectionId[] = [
      'contact', 'toolkit', 'additional-work', 'selected-builds', 'infrastructure', 'experience', 'profile', 'start',
    ];
    content.navigation = reorderedIds.map((id) => navigationById.get(id)!);
    const reorderedInputs = validateProductionInputs(
      content,
      fixture('asset-manifest.valid.json'),
      fixture('site-config.preview.json'),
      new URL('file:///prepared-assets/'),
    );

    const document = await renderedDocumentFor(reorderedInputs);

    expect([...document.querySelectorAll('main > section > h2')].map((heading) => heading.textContent)).toEqual([
      'Profile', 'Experience', 'Infrastructure', 'Selected builds', 'Additional work', 'Toolkit', 'Contact',
    ]);
    expect([...document.querySelectorAll('nav a')].map((link) => [link.getAttribute('href'), link.textContent])).toEqual([
      ['#start', 'Start'], ['#profile', 'Profile'], ['#experience', 'Career'], ['#infrastructure', 'Infra'],
      ['#selected-builds', 'Builds'], ['#additional-work', 'More work'], ['#toolkit', 'Toolkit'], ['#contact', 'Contact'],
    ]);
  });

  it('includes systems and software evidence in server-rendered content', async () => {
    const document = await renderedDocument();

    expect(document.body.textContent).toContain('Professional systems operations');
    expect(document.body.textContent).toContain('Secure self-hosted platform and lifecycle');
    expect(document.body.textContent).toContain('Private self-hosted medication tracker');
    expect(document.body.textContent).toContain('Footy Tracker');
  });
});