rn-app/components/Themed.tsx

/**
 * 主题化组件
 *
 * 提供自动适配主题的 Text 和 View 组件
 * 支持从 settingsStore 读取主题设置
 */

import { Text as DefaultText, View as DefaultView, TextStyle } from 'react-native';

import Colors from '@/constants/Colors';
import { useColorScheme } from '@/hooks/useTheme';

type ThemeProps = {
  lightColor?: string;
  darkColor?: string;
};

export type TextProps = ThemeProps & DefaultText['props'];
export type ViewProps = ThemeProps & DefaultView['props'];

/**
 * 获取主题颜色
 *
 * @param props - 包含 light 和 dark 颜色的对象
 * @param colorName - Colors 中定义的颜色名称
 * @returns 当前主题对应的颜色值
 */
export function useThemeColor(
  props: { light?: string; dark?: string },
  colorName: keyof typeof Colors.light & keyof typeof Colors.dark
) {
  const theme = useColorScheme() ?? 'light';
  const colorFromProps = props[theme];

  if (colorFromProps) {
    return colorFromProps;
  } else {
    return Colors[theme][colorName];
  }
}

/**
 * 主题化 Text 组件
 *
 * 自动应用当前主题的文本颜色
 */
export function Text(props: TextProps) {
  const { style, lightColor, darkColor, ...otherProps } = props;
  const color = useThemeColor({ light: lightColor, dark: darkColor }, 'text');

  return <DefaultText style={[{ color }, style]} {...otherProps} />;
}

/**
 * 主题化 View 组件
 *
 * 自动应用当前主题的背景颜色
 */
export function View(props: ViewProps) {
  const { style, lightColor, darkColor, ...otherProps } = props;
  const backgroundColor = useThemeColor({ light: lightColor, dark: darkColor }, 'background');

  return <DefaultView style={[{ backgroundColor }, style]} {...otherProps} />;
}

/**
 * 主题化 Text 组件（带类型）
 *
 * 支持不同的文本类型：title, subtitle, defaultSemiBold, link
 */
export type ThemedTextProps = TextProps & {
  type?: 'default' | 'title' | 'defaultSemiBold' | 'subtitle' | 'link';
};

export function ThemedText({ style, type = 'default', ...rest }: ThemedTextProps) {
  const color = useThemeColor({}, 'text');
  const linkColor = useThemeColor({}, 'tint');

  const typeStyles: Record<string, TextStyle> = {
    default: {
      fontSize: 16,
      lineHeight: 24,
    },
    defaultSemiBold: {
      fontSize: 16,
      lineHeight: 24,
      fontWeight: '600',
    },
    title: {
      fontSize: 32,
      fontWeight: 'bold',
      lineHeight: 40,
    },
    subtitle: {
      fontSize: 20,
      fontWeight: '600',
      lineHeight: 28,
    },
    link: {
      fontSize: 16,
      lineHeight: 24,
      color: linkColor,
    },
  };

  return (
    <Text
      style={[
        { color },
        typeStyles[type],
        style,
      ]}
      {...rest}
    />
  );
}

/**
 * 主题化 View 组件
 */
export type ThemedViewProps = ViewProps;

export function ThemedView({ style, ...otherProps }: ThemedViewProps) {
  const backgroundColor = useThemeColor({}, 'background');

  return <DefaultView style={[{ backgroundColor }, style]} {...otherProps} />;
}