import { describe, it, expect } from 'vitest';
import {
  buttonLabel,
  timerLabel,
  progressLabel,
  sliderLabel,
  alertLabel,
  achievementLabel,
  streakLabel,
  listItemLabel,
  formatDurationForA11y,
  formatNumberForA11y,
  buildAnnouncement,
  getPositiveBreakMessage,
} from './client.js';

describe('accessibility label generators', () => {
  it('buttonLabel returns correct props', () => {
    const props = buttonLabel('Start Timer', 'Begins a new timer');
    expect(props.accessible).toBe(true);
    expect(props.accessibilityLabel).toBe('Start Timer');
    expect(props.accessibilityHint).toBe('Begins a new timer');
    expect(props.accessibilityRole).toBe('button');
  });

  it('timerLabel with context', () => {
    const props = timerLabel('running', '2 hours 30 minutes', 'Intermittent fasting');
    expect(props.accessibilityLabel).toContain('running');
    expect(props.accessibilityLabel).toContain('2 hours 30 minutes');
    expect(props.accessibilityLabel).toContain('Intermittent fasting');
    expect(props.accessibilityRole).toBe('timer');
  });

  it('timerLabel without context', () => {
    const props = timerLabel('paused', '10 minutes');
    expect(props.accessibilityLabel).toBe('Timer paused, 10 minutes');
  });

  it('progressLabel with description', () => {
    const props = progressLabel('Fasting', 75, 'On track');
    expect(props.accessibilityLabel).toContain('75 percent');
    expect(props.accessibilityLabel).toContain('On track');
    expect(props.accessibilityRole).toBe('progressbar');
    expect(props.accessibilityValue?.now).toBe(75);
  });

  it('progressLabel clamps to 0-100', () => {
    const neg = progressLabel('Test', -10);
    expect(neg.accessibilityValue?.now).toBe(0);

    const over = progressLabel('Test', 150);
    expect(over.accessibilityValue?.now).toBe(100);
  });

  it('sliderLabel with max', () => {
    const props = sliderLabel('Volume', 7, 10);
    expect(props.accessibilityLabel).toBe('Volume: 7 of 10');
    expect(props.accessibilityRole).toBe('adjustable');
  });

  it('sliderLabel without max', () => {
    const props = sliderLabel('Score', 42);
    expect(props.accessibilityLabel).toBe('Score: 42');
  });

  it('alertLabel', () => {
    const props = alertLabel('Warning', 'High heart rate detected');
    expect(props.accessibilityLabel).toBe('Warning alert: High heart rate detected');
    expect(props.accessibilityRole).toBe('alert');
  });

  it('achievementLabel earned', () => {
    const props = achievementLabel('Early Bird', 'Complete 5 morning sessions', true);
    expect(props.accessibilityLabel).toContain('Earned');
    expect(props.accessibilityLabel).toContain('Early Bird');
    expect(props.accessibilityState?.selected).toBe(true);
  });

  it('achievementLabel locked', () => {
    const props = achievementLabel('Night Owl', 'Complete 5 late sessions', false);
    expect(props.accessibilityLabel).toContain('Locked');
    expect(props.accessibilityState?.selected).toBe(false);
  });

  it('streakLabel', () => {
    const props = streakLabel(7, 14);
    expect(props.accessibilityLabel).toContain('7 days');
    expect(props.accessibilityLabel).toContain('14 days');
  });

  it('listItemLabel with badge', () => {
    const props = listItemLabel('16:8 Protocol', '16 hours fasting', 'Popular');
    expect(props.accessibilityLabel).toBe('16:8 Protocol, 16 hours fasting, Popular');
  });

  it('listItemLabel minimal', () => {
    const props = listItemLabel('Simple Item');
    expect(props.accessibilityLabel).toBe('Simple Item');
  });
});

describe('formatDurationForA11y', () => {
  it('formats hours and minutes', () => {
    const result = formatDurationForA11y(16.5 * 60 * 60 * 1000);
    expect(result).toBe('16 hours 30 minutes');
  });

  it('formats zero', () => {
    expect(formatDurationForA11y(0)).toBe('0 seconds');
  });

  it('formats singular units', () => {
    const result = formatDurationForA11y(3661000); // 1h 1m 1s
    expect(result).toBe('1 hour 1 minute 1 second');
  });

  it('handles negative as zero', () => {
    expect(formatDurationForA11y(-1000)).toBe('0 seconds');
  });
});

describe('formatNumberForA11y', () => {
  it('formats small numbers', () => {
    expect(formatNumberForA11y(5)).toBe('five');
    expect(formatNumberForA11y(0)).toBe('zero');
    expect(formatNumberForA11y(13)).toBe('thirteen');
  });

  it('formats larger numbers', () => {
    expect(formatNumberForA11y(42)).toBe('forty two');
    expect(formatNumberForA11y(100)).toBe('one hundred');
    expect(formatNumberForA11y(1234)).toBe('one thousand two hundred thirty four');
  });
});

describe('buildAnnouncement', () => {
  it('combines headline and detail', () => {
    const result = buildAnnouncement('Fast Complete', 'You fasted for 16 hours');
    expect(result).toBe('Fast Complete. You fasted for 16 hours');
  });
});

describe('getPositiveBreakMessage', () => {
  it('returns a positive message', () => {
    const msg = getPositiveBreakMessage(50);
    expect(msg.length).toBeGreaterThan(0);
  });

  it('clamps to valid range', () => {
    const msgNeg = getPositiveBreakMessage(-10);
    const msg0 = getPositiveBreakMessage(0);
    expect(msgNeg).toBe(msg0);
  });
});