import { test } from 'node:test';
import assert from 'node:assert/strict';
import { DEFAULT_THEME } from '../../YouleNexus/assets/framework/ui/theme/default-theme.ts';
import { resolveTheme } from '../../YouleNexus/assets/framework/ui/theme/resolve-theme.ts';
import { ThemeProvider } from '../../YouleNexus/assets/framework/ui/theme/theme-provider.ts';

test('resolveTheme 不传配置时返回默认主题', () => {
  const t = resolveTheme();
  assert.deepEqual(t, DEFAULT_THEME);
});

test('resolveTheme 只覆盖给出的字段，其余取默认', () => {
  const t = resolveTheme({ colors: { primary: '#C8102E' } });
  assert.equal(t.colors.primary, '#C8102E');
  assert.equal(t.colors.accent, DEFAULT_THEME.colors.accent);
  assert.equal(t.fonts.sizeBody, DEFAULT_THEME.fonts.sizeBody);
  assert.equal(t.layout.myInfoAnchorX, DEFAULT_THEME.layout.myInfoAnchorX);
});

test('resolveTheme 分组独立合并，互不影响', () => {
  const t = resolveTheme({ layout: { myInfoAnchorX: 130 } });
  assert.equal(t.layout.myInfoAnchorX, 130);
  assert.equal(t.layout.nicknameMaxChars, DEFAULT_THEME.layout.nicknameMaxChars);
  assert.deepEqual(t.colors, DEFAULT_THEME.colors);
});

test('resolveTheme 不修改 DEFAULT_THEME 本身', () => {
  const before = DEFAULT_THEME.colors.primary;
  resolveTheme({ colors: { primary: '#000000' } });
  assert.equal(DEFAULT_THEME.colors.primary, before);
});

test('ThemeProvider 未 init 就读取会抛错（第二准则：不兜底）', () => {
  ThemeProvider.reset();
  assert.throws(() => ThemeProvider.get(), /未初始化/);
});

test('ThemeProvider init 后可读回同一份主题', () => {
  ThemeProvider.reset();
  const t = resolveTheme({ colors: { primary: '#123456' } });
  ThemeProvider.init(t);
  assert.equal(ThemeProvider.get().colors.primary, '#123456');
});