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

OutlineInputBorder buildFormBoard() {
  return OutlineInputBorder(
    borderRadius: BorderRadius.circular(12),
    borderSide: BorderSide(color: Colors.grey.shade200),
  );
}

OutlineInputBorder buildFormEnabledBoard() {
  return OutlineInputBorder(
    borderRadius: BorderRadius.circular(12),
    borderSide: BorderSide(color: Colors.grey.shade200),
  );
}

OutlineInputBorder buildFormFocusedBoard(ColorScheme colors) {
  return OutlineInputBorder(
    borderRadius: BorderRadius.circular(12),
    borderSide: BorderSide(color: colors.primary),
  );
}

// 卡片
class BuildCard extends StatelessWidget {
  final Widget? child;

  const BuildCard({super.key, this.child});

  @override
  Widget build(BuildContext context) {
    final colors = Theme.of(context).colorScheme;

    return Container(
      decoration: BoxDecoration(
        color: colors.surfaceContainer,
        borderRadius: BorderRadius.circular(12),
        // border: Border.all(color: colors.outline.withAlpha(50), width: 1),
      ),
      padding: const EdgeInsets.all(16),
      child: child,
    );
  }
}

// 底部弹出
void buildModalBottom({
  required BuildContext context,
  required String title,
  required Widget body,
}) {
  final colors = Theme.of(context).colorScheme;

  showModalBottomSheet(
    context: context,
    isScrollControlled: true,
    backgroundColor: Colors.transparent,
    builder: (BuildContext context) {
      return GestureDetector(
        onTap: () => Navigator.of(context).pop(),
        child: Container(
          color: Color.fromRGBO(0, 0, 0, 0.001),
          child: GestureDetector(
            onTap: () {},
            child: DraggableScrollableSheet(
              initialChildSize: 0.6,
              minChildSize: 0.4,
              maxChildSize: 0.9,
              builder: (_, controller) {
                return Container(
                  decoration: BoxDecoration(
                    color: colors.surfaceContainer,
                    border: Border.all(
                      color: colors.outline.withAlpha(50),
                      width: 1,
                    ),
                    borderRadius: BorderRadius.only(
                      topLeft: Radius.circular(24),
                      topRight: Radius.circular(24),
                    ),
                  ),
                  child: buildModalBottomBody(context, title, body),
                );
              },
            ),
          ),
        ),
      );
    },
  );
}

Widget buildModalBottomTitle(BuildContext context, String title) {
  return Padding(
    padding: EdgeInsets.symmetric(horizontal: 8, vertical: 4),
    child: Row(
      mainAxisAlignment: MainAxisAlignment.center,
      children: [
        Text(
          title,
          style: TextStyle(
            fontSize: 20,
            color: Theme.of(context).colorScheme.primary,
            fontWeight: FontWeight.w700,
          ),
        ),
      ],
    ),
  );
}

Widget buildModalBottomBody(BuildContext context, String title, Widget body) {
  return Column(
    children: [
      // 拖拽指示条
      Container(
        margin: EdgeInsets.only(top: 12, bottom: 4),
        width: 48,
        height: 4,
        decoration: BoxDecoration(
          color: Colors.grey[400],
          borderRadius: BorderRadius.circular(2),
        ),
      ),
      buildModalBottomTitle(context, title),
      Divider(height: 1, thickness: 1),
      Expanded(child: Padding(padding: EdgeInsets.all(12), child: body)),
    ],
  );
}

// 滑动删除
Widget buildDismissible({
  required BuildContext context,
  required Object id,
  required Widget child,
  required VoidCallback onDelete,
}) {
  return Dismissible(
    key: ValueKey(id),
    direction: DismissDirection.endToStart,
    background: _buildDismissBackground(),
    confirmDismiss: (direction) async {
      // 这里实现二次确认
      return await showDeleteConfirmationDialog(context);
    },
    onDismissed: (direction) {
      onDelete();
    },
    child: child,
  );
}

// 确认对话框
Future<bool?> showDeleteConfirmationDialog(BuildContext context) async {
  return showDialog<bool>(
    context: context,
    builder: (BuildContext context) {
      return AlertDialog(
        title: const Text('确认删除'),
        backgroundColor: Theme.of(context).colorScheme.surfaceContainer,
        content: const Text('确定要删除这个项目吗？'),
        actions: [
          TextButton(
            onPressed: () => Navigator.of(context).pop(false),
            child: const Text('取消'),
          ),
          TextButton(
            onPressed: () => Navigator.of(context).pop(true),
            child: const Text('删除', style: TextStyle(color: Colors.red)),
          ),
        ],
      );
    },
  );
}

Widget _buildDismissBackground() {
  return Container(
    color: Colors.red,
    alignment: Alignment.centerRight,
    padding: const EdgeInsets.only(right: 20),
    child: const Icon(Icons.delete, color: Colors.white, size: 24),
  );
}

// toggle切换
Widget buildToggleSwitch<T extends Enum>({
  required BuildContext context,
  required T currentTab,
  required List<T> tabValues,
  required List<String> labels,
  required ValueChanged<T> onTabChanged,
}) {
  return ToggleSwitch(
    minWidth: 90.0,
    minHeight: 40.0,
    initialLabelIndex: tabValues.indexOf(currentTab),
    totalSwitches: tabValues.length,
    labels: labels,
    activeBgColor: [Theme.of(context).colorScheme.primary],
    activeFgColor: Colors.white,
    inactiveBgColor: Colors.grey.shade200,
    inactiveFgColor: Colors.grey.shade700,
    cornerRadius: 12.0,
    customTextStyles: [TextStyle(fontSize: 12, fontWeight: FontWeight.w500)],
    onToggle: (index) {
      if (index != null && index < tabValues.length) {
        onTabChanged(tabValues[index]);
      }
    },
  );
}

ButtonStyle buildSegmentStyle(ColorScheme colors) {
  return ButtonStyle(
    side: WidgetStateProperty.all<BorderSide>(
      const BorderSide(color: Colors.transparent, width: 0),
    ),
    iconColor: WidgetStateProperty.resolveWith<Color>(
          (Set<WidgetState> states) {
        if (states.contains(WidgetState.selected)) {
          return colors.onPrimary;
        }
        return Colors.grey;
      },
    ),
    backgroundColor: WidgetStateProperty.resolveWith<Color>((
        Set<WidgetState> states,
        ) {
      if (states.contains(WidgetState.selected)) {
        return colors.primary;
      }
      return Colors.grey.shade200;
    }),
    foregroundColor: WidgetStateProperty.resolveWith<Color>((
        Set<WidgetState> states,
        ) {
      if (states.contains(WidgetState.selected)) {
        return colors.onPrimary;
      }
      return colors.onSurface;
    }),
    shape: WidgetStateProperty.all<RoundedRectangleBorder>(
      RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
    ),
  );
}

Widget circleIconButton({
  required IconData icon,
  required VoidCallback onPressed,
  required BuildContext context,
}) {
  return ElevatedButton(
    onPressed: onPressed,
    style: ElevatedButton.styleFrom(
      shape: CircleBorder(),
      elevation: 0,
      backgroundColor: Theme.of(context).colorScheme.primary,
      padding: EdgeInsets.zero,
      minimumSize: const Size(0, 0),
    ),
    child: Icon(icon, color: Colors.white),
  );
}