import { render, screen } from '@testing-library/react';
import { describe, it, expect } from 'vitest';
import { Proceso } from '../Proceso';
import { proceso, creditosFotos } from '@/lib/content';

describe('<Proceso />', () => {
  it('renders the three approved phases as a strip', () => {
    render(<Proceso />);
    expect(proceso.fases).toHaveLength(3);
    for (const fase of proceso.fases) {
      expect(screen.getByText(fase)).toBeInTheDocument();
    }
  });

  it('renders all eight stages, numbered 01 through 08', () => {
    render(<Proceso />);
    expect(proceso.etapas).toHaveLength(8);
    for (const etapa of proceso.etapas) {
      expect(screen.getByText(etapa.name)).toBeInTheDocument();
      expect(screen.getByText(etapa.n)).toBeInTheDocument();
    }
  });

  // The argument of the section: "claridad estratégica" is abstract until it
  // is a document you can hold. The lámina labels this block on all eight of
  // its cards and marks every line — losing either turns the deliverables back
  // into a list of service names.
  it('labels the deliverables block on every card and marks every line', () => {
    const { container } = render(<Proceso />);
    expect(screen.getAllByText(proceso.etiquetaEntregables)).toHaveLength(8);

    for (const entregable of proceso.etapas.flatMap((e) => e.entregables)) {
      expect(screen.getByText(entregable)).toBeInTheDocument();
    }

    // One <ul> of deliverables per stage, every line of it carrying an icon.
    const listas = container.querySelectorAll('ul');
    expect(listas).toHaveLength(proceso.etapas.length);
    listas.forEach((lista, i) => {
      const esperados = proceso.etapas[i].entregables.length;
      expect(lista.querySelectorAll(':scope > li')).toHaveLength(esperados);
      expect(lista.querySelectorAll(':scope > li > svg')).toHaveLength(esperados);
    });
  });

  // The icon map is keyed by the copy itself, so rewording a deliverable in
  // lib/content.ts without updating the map would render a blank space where
  // its mark should be. Nothing else would fail.
  it('gives every deliverable its own icon, none of them empty', () => {
    const { container } = render(<Proceso />);
    const items = Array.from(container.querySelectorAll('ul > li'));
    expect(items).toHaveLength(proceso.etapas.reduce((n, e) => n + e.entregables.length, 0));
    for (const item of items) {
      const svg = item.querySelector(':scope > svg');
      expect(svg, `«${item.textContent}» se quedó sin ícono`).not.toBeNull();
      expect(svg!.children.length, `el ícono de «${item.textContent}» está vacío`).toBeGreaterThan(0);
    }
  });

  // Stage 01's medallion was the magnifier, and so was its own "Diagnóstico
  // ejecutivo" line — the same glyph twice in one card, which reads as a
  // mistake. Nothing but the eye catches this, so the eye gets help.
  it('never repeats a glyph inside the same card', () => {
    const { container } = render(<Proceso />);
    const tarjetas = Array.from(container.querySelectorAll('ol'))[1].querySelectorAll(':scope > li');
    tarjetas.forEach((tarjeta, i) => {
      const glifos = Array.from(tarjeta.querySelectorAll('svg')).map((s) => s.innerHTML);
      expect(new Set(glifos).size, `la etapa ${proceso.etapas[i].n} repite un ícono`).toBe(glifos.length);
    });
  });

  it('closes on the One Year Plan, the payoff the other seven point at', () => {
    render(<Proceso />);
    expect(screen.getByText('One Year Plan')).toBeInTheDocument();
    expect(screen.getByText('Roadmap a 12 meses')).toBeInTheDocument();
    expect(screen.getByText('Gobernanza del crecimiento')).toBeInTheDocument();
  });

  // The stages are a sequence, so the order has to reach assistive tech
  // through the markup — otherwise it lives only in the drawn number, which is
  // decorative and never announced.
  it('carries the order in the markup, not just in the drawn number', () => {
    const { container } = render(<Proceso />);
    const listas = container.querySelectorAll('ol');
    expect(listas).toHaveLength(2); // the phase strip and the eight stages
    expect(listas[1].querySelectorAll(':scope > li')).toHaveLength(8);
  });

  // The footer is the only place in the project where the photo licences are
  // honoured, and it renders `creditosFotos` verbatim. An image added here
  // without an entry there would go uncredited and nothing else would notice.
  it('credits every photograph it shows', () => {
    const { container } = render(<Proceso />);
    const fotos = Array.from(container.querySelectorAll('img')).map((i) => i.getAttribute('src'));
    expect(fotos).toHaveLength(proceso.etapas.length);
    for (const src of fotos) {
      expect(
        creditosFotos.some((c) => 'archivo' in c && c.archivo === src),
        `«${src}» no tiene crédito en creditosFotos`,
      ).toBe(true);
    }
  });

  it('loads the photographs lazily, since none of them is above the fold', () => {
    const { container } = render(<Proceso />);
    for (const img of Array.from(container.querySelectorAll('img'))) {
      expect(img).toHaveAttribute('loading', 'lazy');
    }
  });

  // Everything here is adapted from the dueña's working deck for a real
  // client. None of that client's detail may reach a public page.
  it('leaks nothing that identifies the client the deck was built for', () => {
    const { container } = render(<Proceso />);
    expect(container.textContent).not.toMatch(
      /cápsulas|gomitas|tabletas|planta|sell in|sell out|mercado mexicano|líderes de la categoría/i,
    );
  });
});