/**
 * Component tests for ContributionHeatmap.
 * Validates rendering with heatmap day data.
 */
import { describe, it, expect } from 'vitest';
import { mount } from '@vue/test-utils';
import ContributionHeatmap from '@/components/charts/ContributionHeatmap.vue';

const mockDays = [
  { date: '2026-01-15', commits: 3, prsCreated: 1, prsMerged: 0, tasksCompleted: 2 },
  { date: '2026-01-16', commits: 0, prsCreated: 0, prsMerged: 0, tasksCompleted: 0 },
  { date: '2026-01-17', commits: 8, prsCreated: 2, prsMerged: 1, tasksCompleted: 4 },
  { date: '2026-01-18', commits: 1, prsCreated: 0, prsMerged: 0, tasksCompleted: 1 },
];

describe('ContributionHeatmap', () => {
  it('should mount with days data', () => {
    const wrapper = mount(ContributionHeatmap, {
      props: { days: mockDays },
    });
    expect(wrapper.exists()).toBe(true);
  });

  it('should have heatmap container', () => {
    const wrapper = mount(ContributionHeatmap, {
      props: { days: mockDays },
    });
    expect(wrapper.find('.contribution-heatmap').exists()).toBe(true);
  });

  it('should handle empty days gracefully', () => {
    const wrapper = mount(ContributionHeatmap, {
      props: { days: [] },
    });
    expect(wrapper.exists()).toBe(true);
  });

  it('should handle single day', () => {
    const wrapper = mount(ContributionHeatmap, {
      props: {
        days: [{ date: '2026-04-01', commits: 5, prsCreated: 1, prsMerged: 1, tasksCompleted: 3 }],
      },
    });
    expect(wrapper.exists()).toBe(true);
  });
});