import 'package:flutter/material.dart';
import '../constants/report_constants.dart';

/// 问题描述输入模块
class DescriptionInput extends StatelessWidget {
  final String? description;
  final Function(String) onChanged;

  const DescriptionInput({
    super.key,
    this.description,
    required this.onChanged,
  });

  @override
  Widget build(BuildContext context) {
    return Container(
      margin: const EdgeInsets.symmetric(
        horizontal: AppDimensions.horizontalPadding,
      ),
      padding: const EdgeInsets.all(16),
      decoration: BoxDecoration(
        color: AppColors.background,
        borderRadius: BorderRadius.circular(AppDimensions.borderRadius),
        boxShadow: [
          BoxShadow(
            color: const Color(0x0D000000),
            blurRadius: AppDimensions.cardShadowBlur,
            offset: const Offset(0, 2),
          ),
        ],
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Text(
            '问题描述',
            style: TextStyle(
              fontSize: 16,
              fontWeight: FontWeight.w600,
              color: AppColors.textPrimary,
            ),
          ),
          const SizedBox(height: 12),
          TextField(
            maxLines: 5,
            maxLength: 200,
            onChanged: onChanged,
            decoration: InputDecoration(
              hintText: '请详细描述问题现象...',
              hintStyle: TextStyle(color: AppColors.textHint),
              border: OutlineInputBorder(
                borderRadius: BorderRadius.circular(AppDimensions.borderRadiusSmall),
                borderSide: BorderSide(color: AppColors.borderColor),
              ),
              enabledBorder: OutlineInputBorder(
                borderRadius: BorderRadius.circular(AppDimensions.borderRadiusSmall),
                borderSide: BorderSide(color: AppColors.borderColor),
              ),
              focusedBorder: OutlineInputBorder(
                borderRadius: BorderRadius.circular(AppDimensions.borderRadiusSmall),
                borderSide: BorderSide(color: AppColors.primary, width: 2),
              ),
              counterText: '',
            ),
            style: TextStyle(
              fontSize: 14,
              color: AppColors.textPrimary,
            ),
          ),
          Align(
            alignment: Alignment.centerRight,
            child: Text(
              '${description?.length ?? 0}/200',
              style: TextStyle(
                fontSize: 12,
                color: AppColors.textHint,
              ),
            ),
          ),
        ],
      ),
    );
  }
}