food_hub_app/lib/widgets/common/index.dart

import 'package:flutter/material.dart';
import 'package:toggle_switch/toggle_switch.dart';

Widget formLabelText({required String labelText, bool isRequired = false}) {
  return Text.rich(
    TextSpan(
      children: [
        if (isRequired)
          const TextSpan(text: '* ', style: TextStyle(color: Colors.red)),
        TextSpan(text: labelText),
      ],
    ),
  );
}

InputDecoration formInputDecoration({
  required String hintText,
  IconData? prefixIcon,
}) {
  return InputDecoration(
    hintText: hintText,
    hintStyle: TextStyle(color: Colors.grey),
    filled: true,
    fillColor: Colors.white,
    border: OutlineInputBorder(),
    prefixIcon: prefixIcon != null ? Icon(prefixIcon) : null,
  );
}

Widget buildToggleSwitch<T extends Enum>({
  required BuildContext context,
  required T currentTab,
  required List<T> tabValues,
  required List<String> labels,
  required ValueChanged<T> onTabChanged,
}) {
  final colors = Theme.of(context).colorScheme;

  return ToggleSwitch(
    minWidth: 90.0,
    minHeight: 40.0,
    initialLabelIndex: tabValues.indexOf(currentTab),
    totalSwitches: tabValues.length,
    labels: labels,
    activeBgColor: [colors.primary],
    activeFgColor: colors.surface,
    inactiveBgColor: colors.surface,
    inactiveFgColor: colors.onSurface,
    cornerRadius: 12.0,
    customTextStyles: [TextStyle(fontSize: 12, fontWeight: FontWeight.w500)],
    onToggle: (index) {
      if (index != null && index < tabValues.length) {
        onTabChanged(tabValues[index]);
      }
    },
  );
}

/// 圆形图标按钮
Widget circleIconButton({
  required IconData icon,
  required VoidCallback onPressed,
  required BuildContext context,
  bool? isSmall,
}) {
  final double size = isSmall == true ? 24 : 36;

  return ElevatedButton(
    onPressed: onPressed,
    style: ElevatedButton.styleFrom(
      fixedSize: Size(size, size),
      shape: CircleBorder(),
      elevation: 0,
      backgroundColor: Theme.of(context).colorScheme.primary,
      padding: EdgeInsets.zero,
      minimumSize: const Size(0, 0),
    ),
    child: Icon(icon, color: Colors.white),
  );
}

Widget buildTag(BuildContext context, String title) {
  final colors = Theme.of(context).colorScheme;

  return Container(
    padding: EdgeInsets.symmetric(horizontal: 10, vertical: 4),
    decoration: BoxDecoration(
      color: colors.primary,
      borderRadius: BorderRadius.circular(10),
    ),
    child: Text(title, style: TextStyle(color: colors.surface)),
  );
}

Widget buildPrimaryButton({
  required BuildContext context,
  required String text,
  required VoidCallback onPressed,
}) {
  return ElevatedButton(
    onPressed: () => onPressed(),
    style: ElevatedButton.styleFrom(
      backgroundColor: Theme.of(context).colorScheme.primary,
      shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
      elevation: 0,
    ),
    child: Text(text, style: TextStyle(color: Colors.white)),
  );
}

Widget buildErrorButton({
  required String text,
  required VoidCallback onPressed,
}) {
  return ElevatedButton(
    onPressed: () => onPressed(),
    style: ElevatedButton.styleFrom(
      backgroundColor: Colors.red,
      shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
      elevation: 0,
    ),
    child: Text(text, style: TextStyle(color: Colors.white)),
  );
}

Widget buildInfoButton({
  required BuildContext context,
  required String text,
  required VoidCallback onPressed,
}) {
  return ElevatedButton(
    onPressed: () => onPressed(),
    style: ElevatedButton.styleFrom(
      backgroundColor: Theme.of(context).colorScheme.surface,
      shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
      elevation: 0,
    ),
    child: Text(text),
  );
}

/// 图片错误显示
Widget errorImageContainer(double height) {
  return Container(
    height: 200,
    width: double.infinity,
    color: Colors.grey[200],
    child: const Icon(Icons.image, color: Colors.grey, size: 30),
  );
}