jiu/client/lib/core/theme/app_tokens.dart

import 'package:flutter/material.dart';

@immutable
class AppTokens extends ThemeExtension<AppTokens> {
  final Color page,
      bg,
      surface,
      border,
      borderSubtle,
      text,
      heading,
      title,
      muted,
      faint;
  final Color primary, primaryDark, onPrimary, brand400, brand50, accent;
  final Color success,
      danger,
      warn,
      infoSoft,
      okSoft,
      accentSoft,
      successBg,
      dangerBg,
      warnBg;
  final Color thBg, rowHover, shadow;
  final Color topBg,
      topFg,
      topFaint,
      topBorder,
      topControl,
      topMarkBg,
      topMarkFg;
  final Color sideBg,
      sideFg,
      sideMuted,
      sideActiveBg,
      sideActiveFg,
      sideBorder,
      sideHover;
  final Color menuUserBg, menuUserFg, menuUserHover;
  final Color toastBg; // 原型 --toast-bg（基础 :root 共用，主题不变）
  final bool isDark;

  const AppTokens({
    required this.page,
    required this.bg,
    required this.surface,
    required this.border,
    required this.borderSubtle,
    required this.text,
    required this.heading,
    required this.title,
    required this.muted,
    required this.faint,
    required this.primary,
    required this.primaryDark,
    required this.onPrimary,
    required this.brand400,
    required this.brand50,
    required this.accent,
    required this.success,
    required this.danger,
    required this.warn,
    required this.infoSoft,
    required this.okSoft,
    required this.accentSoft,
    required this.successBg,
    required this.dangerBg,
    required this.warnBg,
    required this.thBg,
    required this.rowHover,
    required this.shadow,
    required this.topBg,
    required this.topFg,
    required this.topFaint,
    required this.topBorder,
    required this.topControl,
    required this.topMarkBg,
    required this.topMarkFg,
    required this.sideBg,
    required this.sideFg,
    required this.sideMuted,
    required this.sideActiveBg,
    required this.sideActiveFg,
    required this.sideBorder,
    required this.sideHover,
    required this.menuUserBg,
    required this.menuUserFg,
    required this.menuUserHover,
    required this.toastBg,
    required this.isDark,
  });

  @override
  AppTokens copyWith({
    Color? page,
    Color? bg,
    Color? surface,
    Color? border,
    Color? borderSubtle,
    Color? text,
    Color? heading,
    Color? title,
    Color? muted,
    Color? faint,
    Color? primary,
    Color? primaryDark,
    Color? onPrimary,
    Color? brand400,
    Color? brand50,
    Color? accent,
    Color? success,
    Color? danger,
    Color? warn,
    Color? infoSoft,
    Color? okSoft,
    Color? accentSoft,
    Color? successBg,
    Color? dangerBg,
    Color? warnBg,
    Color? thBg,
    Color? rowHover,
    Color? shadow,
    Color? topBg,
    Color? topFg,
    Color? topFaint,
    Color? topBorder,
    Color? topControl,
    Color? topMarkBg,
    Color? topMarkFg,
    Color? sideBg,
    Color? sideFg,
    Color? sideMuted,
    Color? sideActiveBg,
    Color? sideActiveFg,
    Color? sideBorder,
    Color? sideHover,
    Color? menuUserBg,
    Color? menuUserFg,
    Color? menuUserHover,
    Color? toastBg,
    bool? isDark,
  }) {
    return AppTokens(
      page: page ?? this.page,
      bg: bg ?? this.bg,
      surface: surface ?? this.surface,
      border: border ?? this.border,
      borderSubtle: borderSubtle ?? this.borderSubtle,
      text: text ?? this.text,
      heading: heading ?? this.heading,
      title: title ?? this.title,
      muted: muted ?? this.muted,
      faint: faint ?? this.faint,
      primary: primary ?? this.primary,
      primaryDark: primaryDark ?? this.primaryDark,
      onPrimary: onPrimary ?? this.onPrimary,
      brand400: brand400 ?? this.brand400,
      brand50: brand50 ?? this.brand50,
      accent: accent ?? this.accent,
      success: success ?? this.success,
      danger: danger ?? this.danger,
      warn: warn ?? this.warn,
      infoSoft: infoSoft ?? this.infoSoft,
      okSoft: okSoft ?? this.okSoft,
      accentSoft: accentSoft ?? this.accentSoft,
      successBg: successBg ?? this.successBg,
      dangerBg: dangerBg ?? this.dangerBg,
      warnBg: warnBg ?? this.warnBg,
      thBg: thBg ?? this.thBg,
      rowHover: rowHover ?? this.rowHover,
      shadow: shadow ?? this.shadow,
      topBg: topBg ?? this.topBg,
      topFg: topFg ?? this.topFg,
      topFaint: topFaint ?? this.topFaint,
      topBorder: topBorder ?? this.topBorder,
      topControl: topControl ?? this.topControl,
      topMarkBg: topMarkBg ?? this.topMarkBg,
      topMarkFg: topMarkFg ?? this.topMarkFg,
      sideBg: sideBg ?? this.sideBg,
      sideFg: sideFg ?? this.sideFg,
      sideMuted: sideMuted ?? this.sideMuted,
      sideActiveBg: sideActiveBg ?? this.sideActiveBg,
      sideActiveFg: sideActiveFg ?? this.sideActiveFg,
      sideBorder: sideBorder ?? this.sideBorder,
      sideHover: sideHover ?? this.sideHover,
      menuUserBg: menuUserBg ?? this.menuUserBg,
      menuUserFg: menuUserFg ?? this.menuUserFg,
      menuUserHover: menuUserHover ?? this.menuUserHover,
      toastBg: toastBg ?? this.toastBg,
      isDark: isDark ?? this.isDark,
    );
  }

  @override
  AppTokens lerp(ThemeExtension<AppTokens>? other, double t) {
    if (other is! AppTokens) return this;
    Color c(Color a, Color b) => Color.lerp(a, b, t)!;
    return AppTokens(
      page: c(page, other.page),
      bg: c(bg, other.bg),
      surface: c(surface, other.surface),
      border: c(border, other.border),
      borderSubtle: c(borderSubtle, other.borderSubtle),
      text: c(text, other.text),
      heading: c(heading, other.heading),
      title: c(title, other.title),
      muted: c(muted, other.muted),
      faint: c(faint, other.faint),
      primary: c(primary, other.primary),
      primaryDark: c(primaryDark, other.primaryDark),
      onPrimary: c(onPrimary, other.onPrimary),
      brand400: c(brand400, other.brand400),
      brand50: c(brand50, other.brand50),
      accent: c(accent, other.accent),
      success: c(success, other.success),
      danger: c(danger, other.danger),
      warn: c(warn, other.warn),
      infoSoft: c(infoSoft, other.infoSoft),
      okSoft: c(okSoft, other.okSoft),
      accentSoft: c(accentSoft, other.accentSoft),
      successBg: c(successBg, other.successBg),
      dangerBg: c(dangerBg, other.dangerBg),
      warnBg: c(warnBg, other.warnBg),
      thBg: c(thBg, other.thBg),
      rowHover: c(rowHover, other.rowHover),
      shadow: c(shadow, other.shadow),
      topBg: c(topBg, other.topBg),
      topFg: c(topFg, other.topFg),
      topFaint: c(topFaint, other.topFaint),
      topBorder: c(topBorder, other.topBorder),
      topControl: c(topControl, other.topControl),
      topMarkBg: c(topMarkBg, other.topMarkBg),
      topMarkFg: c(topMarkFg, other.topMarkFg),
      sideBg: c(sideBg, other.sideBg),
      sideFg: c(sideFg, other.sideFg),
      sideMuted: c(sideMuted, other.sideMuted),
      sideActiveBg: c(sideActiveBg, other.sideActiveBg),
      sideActiveFg: c(sideActiveFg, other.sideActiveFg),
      sideBorder: c(sideBorder, other.sideBorder),
      sideHover: c(sideHover, other.sideHover),
      menuUserBg: c(menuUserBg, other.menuUserBg),
      menuUserFg: c(menuUserFg, other.menuUserFg),
      menuUserHover: c(menuUserHover, other.menuUserHover),
      toastBg: c(toastBg, other.toastBg),
      isDark: t < 0.5 ? isDark : other.isDark,
    );
  }
}