import { describe, it, expect } from 'vitest';
import { analyzeImage } from '../../apps/desktop/src/main/safe/smart-color';

describe('M5 智能取色 analyzeImage (FR-A9)', () => {
  it('空像素返回默认深色', () => {
    const r = analyzeImage({ pixels: [] });
    expect(r.mode).toBe('dark');
    expect(r.accent).toMatch(/^#[0-9a-f]{6}$/);
  });

  it('暗图 → 深色模式', () => {
    const dark: [number,number,number][] = Array(50).fill([10, 15, 25]);
    expect(analyzeImage({ pixels: dark }).mode).toBe('dark');
  });

  it('亮图 → 浅色模式', () => {
    const light: [number,number,number][] = Array(50).fill([240, 235, 220]);
    expect(analyzeImage({ pixels: light }).mode).toBe('light');
  });

  it('强调色色相约束在冷色/紫红区间 [180,330]', () => {
    const warm: [number,number,number][] = Array(50).fill([200, 60, 30]); // 暖橙
    const r = analyzeImage({ pixels: warm });
    expect(r.accentHue).toBeGreaterThanOrEqual(180);
    expect(r.accentHue).toBeLessThanOrEqual(330);
  });

  it('输出 accent 为合法 hex', () => {
    const r = analyzeImage({ pixels: Array(20).fill([30, 80, 200]) });
    expect(r.accent).toMatch(/^#[0-9a-f]{6}$/);
  });

  it('不透明度建议在合理范围', () => {
    const r = analyzeImage({ pixels: Array(20).fill([100,100,100]) });
    expect(r.suggestedBgOpacity).toBeGreaterThan(0);
    expect(r.suggestedBgOpacity).toBeLessThanOrEqual(0.8);
  });
});