import { fireEvent, render, screen } from '@testing-library/react';
import { describe, expect, it, vi } from 'vitest';
import { TripRouteOverviewPanel, TripRouteOverviewPill } from './TripRouteOverview';
import type { TripRouteOverview } from './useTripRouteOverview';

const overview = (over: Partial<TripRouteOverview> = {}): TripRouteOverview => ({
  days: [
    {
      dayId: 1,
      dayNumber: 1,
      date: '2025-06-01',
      title: null,
      color: { line: '#0a84ff', casing: '#0a5cc2' },
      lines: [],
      segments: [],
      distance: 82000,
      duration: 3600,
      modes: ['driving'],
    },
    {
      dayId: 2,
      dayNumber: 2,
      date: '2025-06-02',
      title: 'Coast road',
      color: { line: '#ff9f0a', casing: '#c2740a' },
      lines: [],
      segments: [],
      distance: 140500,
      duration: 7200,
      modes: ['driving', 'walking'],
    },
  ],
  lines: [],
  lineColors: [],
  segments: [],
  focusPoints: [],
  totalDistance: 222500,
  totalDuration: 10800,
  loading: false,
  ...over,
});

describe('TripRouteOverviewPill', () => {
  it('FE-MAP-TROU-001: says which way it will take you, and reports its state', () => {
    const onToggle = vi.fn();
    const { rerender } = render(<TripRouteOverviewPill active={false} onToggle={onToggle} />);

    const button = screen.getByTestId('trip-overview-pill');
    expect(button).toHaveAttribute('aria-pressed', 'false');
    expect(button).toHaveAttribute('aria-label', 'map.overview.show');

    fireEvent.click(button);
    expect(onToggle).toHaveBeenCalledTimes(1);

    rerender(<TripRouteOverviewPill active onToggle={onToggle} />);
    expect(screen.getByTestId('trip-overview-pill')).toHaveAttribute('aria-label', 'map.overview.hide');
  });
});

describe('TripRouteOverviewPanel', () => {
  it("FE-MAP-TROU-002: leads with the trip total in the reader's own unit", () => {
    const { rerender } = render(<TripRouteOverviewPanel overview={overview()} unit="metric" />);
    expect(screen.getByText('222.5 km')).toBeInTheDocument();

    rerender(<TripRouteOverviewPanel overview={overview()} unit="imperial" />);
    expect(screen.getByText('138.3 mi')).toBeInTheDocument();
  });

  it('FE-MAP-TROU-003: names every day, its distance and how it is travelled', () => {
    render(<TripRouteOverviewPanel overview={overview()} unit="metric" />);

    expect(screen.getByText('dayplan.dayN')).toBeInTheDocument();
    // A day with a title is named by it rather than by its number.
    expect(screen.getByText('Coast road')).toBeInTheDocument();
    expect(screen.getByText('82 km')).toBeInTheDocument();
    expect(screen.getByText('140.5 km')).toBeInTheDocument();
  });

  it('FE-MAP-TROU-004: marks the total as partial while legs are still coming in', () => {
    const { container, rerender } = render(
      <TripRouteOverviewPanel overview={overview({ loading: true })} unit="metric" />
    );
    expect(container.textContent).toContain('…');

    rerender(<TripRouteOverviewPanel overview={overview()} unit="metric" />);
    expect(container.textContent).not.toContain('…');
  });

  it('FE-MAP-TROU-005: a day row picks that day when the shell offers it', () => {
    const onSelectDay = vi.fn();
    render(<TripRouteOverviewPanel overview={overview()} unit="metric" selectedDayId={2} onSelectDay={onSelectDay} />);

    fireEvent.click(screen.getByText('Coast road'));
    expect(onSelectDay).toHaveBeenCalledWith(2);
  });

  it('FE-MAP-TROU-006: read-only shells get rows, not buttons', () => {
    render(<TripRouteOverviewPanel overview={overview()} unit="metric" />);
    expect(screen.queryAllByRole('button')).toHaveLength(0);
  });

  it('FE-MAP-TROU-008: hugs its rows, and takes the cap the shell gives it', () => {
    const { container, rerender } = render(<TripRouteOverviewPanel overview={overview()} unit="metric" />);
    const card = () => screen.getByTestId('trip-overview-panel');

    expect(card().style.width).toBe('fit-content');
    expect(card().style.maxWidth).toBe('320px');

    // The phone shell asks for a narrower card so the map keeps the space.
    rerender(<TripRouteOverviewPanel overview={overview()} unit="metric" maxWidth={240} />);
    expect(card().style.maxWidth).toBe('240px');
    expect(container).not.toBeEmptyDOMElement();
  });

  it('FE-MAP-TROU-007: draws nothing at all for a trip with no routed day', () => {
    const { container } = render(
      <TripRouteOverviewPanel overview={overview({ days: [], totalDistance: 0 })} unit="metric" />
    );
    expect(container).toBeEmptyDOMElement();
  });

  it('FE-MAP-TROU-009: says when legs could not be routed, and marks the day that is short', () => {
    // A refused leg stays a straight line and adds nothing to the sum, so a total shown
    // without a word about it reads as the whole trip when it is not.
    const days = overview().days;
    const short = overview({
      days: [
        { ...days[0], unroutedLegs: 1 },
        { ...days[1], unroutedLegs: 0 },
      ],
      unroutedLegs: 1,
    });
    render(<TripRouteOverviewPanel overview={short} unit="metric" />);

    expect(screen.getByTestId('trip-overview-unrouted')).toHaveTextContent('map.overview.unrouted');
    expect(screen.getAllByRole('img', { name: 'map.overview.dayUnrouted' })).toHaveLength(1);
  });

  it('FE-MAP-TROU-010: does not call a leg unrouted while the round is still running', () => {
    // Every leg still waiting is unrouted too; the ellipsis already says the number grows.
    const days = overview().days;
    const running = overview({
      days: [
        { ...days[0], unroutedLegs: 1 },
        { ...days[1], unroutedLegs: 1 },
      ],
      unroutedLegs: 2,
      loading: true,
    });
    render(<TripRouteOverviewPanel overview={running} unit="metric" />);

    expect(screen.queryByTestId('trip-overview-unrouted')).toBeNull();
    expect(screen.queryByRole('img', { name: 'map.overview.dayUnrouted' })).toBeNull();
  });

  it('FE-MAP-TROU-011: a fully routed trip carries no warning at all', () => {
    render(<TripRouteOverviewPanel overview={overview({ unroutedLegs: 0 })} unit="metric" />);

    expect(screen.queryByTestId('trip-overview-unrouted')).toBeNull();
    expect(screen.queryByRole('img', { name: 'map.overview.dayUnrouted' })).toBeNull();
  });
});