import 'package:flutter/material.dart';

import '../tools/tools.dart';

/// 自定义组件
class ListItemFactory {
  /// 类型1：横向spaceBetween布局两个文本加按钮
  static Widget createRowSpaceBetweenItem({
    required String leftText,
    required String rightText,
    double verticalPadding = 10,
    double horizontalPadding = 0,
    Color textColor = Colors.black,
    bool isRight = false,
  }) {
    return Padding(
      padding: EdgeInsets.symmetric(
        vertical: verticalPadding,
        horizontal: horizontalPadding,
      ),
      child: Row(
        mainAxisAlignment: MainAxisAlignment.spaceBetween,
        children: [
          Text(
            leftText,
            style: TextStyle(
              fontSize: 15,
              fontWeight: FontWeight.bold,
              color: textColor,
            ),
          ),
          if (isRight)
            Row(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                Text(
                  rightText,
                  style: TextStyle(fontSize: 15, color: Colors.grey),
                ),
                SizedBox(width: 2,),
                Icon(Icons.arrow_forward_ios_rounded, color: Colors.black45, size: 15),
              ],
            )
          else
            Text(rightText, style: TextStyle(fontSize: 15, color: Colors.grey)),
        ],
      ),
    );
  }

  ///类型2：上下布局两个文本（自适应高度）
  static Widget createColumnTextItem({
    required String topText,
    required String bottomText,
    double verticalPadding = 15,
    double horizontalPadding = 0,
  }) {
    return Padding(
      padding: EdgeInsets.symmetric(
        vertical: verticalPadding,
        horizontal: horizontalPadding,
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        mainAxisSize: MainAxisSize.min,
        children: [
          Text(
            topText,
            style: TextStyle(
              fontSize: 15,
              fontWeight: FontWeight.bold,
              color: Colors.black,
            ),
          ),
          const SizedBox(height: 5),
          Text(
            bottomText,
            style: TextStyle(fontSize: 15, color: Colors.grey),
            softWrap: true,
            maxLines: null, // 允许无限行数
          ),
        ],
      ),
    );
  }

  /// 类型3：文本和图片上下布局
  static Widget createTextImageItem({
    required String text,
    required List<String> imageUrls,
    double imageHeight = 90,
    double verticalPadding = 10,
    double horizontalPadding = 0,
    // 点击图片时回调，index 为被点击图片的下标
    void Function(int index)? onImageTapped,
  }) {
    return Padding(
      padding: EdgeInsets.symmetric(
        vertical: verticalPadding,
        horizontal: horizontalPadding,
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Text(
            text,
            style: const TextStyle(
              fontSize: 15,
              fontWeight: FontWeight.bold,
              color: Colors.black,
            ),
          ),
          const SizedBox(height: 10),
          Wrap(
            spacing: 8, // 水平间距
            runSpacing: 8, // 垂直间距
            children: List.generate(imageUrls.length, (i) {
              final url = imageUrls[i];
              Widget img;
              if (url.startsWith('http')) {
                img = Image.network(
                  url,
                  height: imageHeight,
                  width: imageHeight * 3 / 2,
                  fit: BoxFit.cover,
                );
              } else {
                img = Image.asset(
                  url,
                  height: imageHeight,
                  width: imageHeight * 3 / 2,
                  fit: BoxFit.cover,
                );
              }
              return GestureDetector(
                onTap: () {
                  if (onImageTapped != null) onImageTapped(i);
                },
                child: ClipRRect(
                  borderRadius: BorderRadius.circular(4),
                  child: img,
                ),
              );
            }),
          ),
        ],
      ),
    );
  }
  /// 类型6：文本和视频上下布局

  static Widget createTextVideoItem({
    required String text,
    required String videoUrl,
    double videoHeight = 90,
    double verticalPadding = 10,
    double horizontalPadding = 0,
    VoidCallback? onVideoTapped,
  }) {
    return Padding(
      padding: EdgeInsets.symmetric(
        vertical: verticalPadding,
        horizontal: horizontalPadding,
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Text(
            text,
            style: const TextStyle(
              fontSize: 15,
              fontWeight: FontWeight.bold,
              color: Colors.black,
            ),
          ),
          const SizedBox(height: 10),
          GestureDetector(
            onTap: onVideoTapped,
            child: Container(
              height: videoHeight,
              width: videoHeight * 3 / 2,
              decoration: BoxDecoration(
                color: Colors.grey[300],
                borderRadius: BorderRadius.circular(4),
              ),
              child: const Center(
                child: Icon(
                  Icons.play_circle_outline,
                  size: 40,
                  color: Colors.white,
                ),
              ),
            ),
          ),
        ],
      ),
    );
  }


  ///类型4：一个文本（自适应高度）
  static Widget createAloneTextItem({
    required String text,
    double verticalPadding = 10,
    double horizontalPadding = 0,
  }) {
    return Padding(
      padding: EdgeInsets.symmetric(
        vertical: verticalPadding,
        horizontal: horizontalPadding,
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        mainAxisSize: MainAxisSize.min,
        children: [
          Text(
            text,
            style: TextStyle(fontSize: 15, color: Colors.grey),
            softWrap: true,
            maxLines: null, // 允许无限行数
          ),
        ],
      ),
    );
  }

  ///  分类头部
  static Widget createYesNoSection({
    required String title,
    required String yesLabel,
    required String noLabel,
    required bool groupValue,
    required ValueChanged<bool> onChanged,
    double verticalPadding = 15,
    double horizontalPadding = 10,
  }) {
    return Padding(
      padding: EdgeInsets.only(top: 0, right: horizontalPadding, left: horizontalPadding, bottom: verticalPadding),
      child: Container(
        padding: EdgeInsets.symmetric(horizontal: 10),
        decoration: BoxDecoration(
          color: Colors.white,
          borderRadius: BorderRadius.circular(5),
        ),
        child: Row(
          children: [
            Expanded(
              child: Text(
                title,
                style: TextStyle(
                  fontSize: 15,
                  fontWeight: FontWeight.bold,
                  color: Colors.black,
                ),
              ),
            ),
            Row(
              children: [
                Row(
                  children: [
                    Radio<bool>(
                      activeColor: Colors.blue,
                      value: true,
                      groupValue: groupValue,
                      onChanged: (val) => onChanged(val!),
                    ),
                    Text(yesLabel),
                  ],
                ),
                const SizedBox(width: 16),
                Row(
                  children: [
                    Radio<bool>(
                      activeColor: Colors.blue,
                      value: false,
                      groupValue: groupValue,
                      onChanged: (val) => onChanged(val!),
                    ),
                    Text(noLabel),
                  ],
                ),
              ],
            ),
          ],
        ),
      ),
    );
  }
  /// 列表标题头（蓝色标识+文字）
  static Widget createBuildSimpleSection(String title) {
    return Container(
      decoration: BoxDecoration(
        color: Colors.white,
        borderRadius: BorderRadius.circular(8),
      ),
      child: Padding(
        padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 10),
        child: Row(
          children: [
            Container(width: 3, height: 15, color: Colors.blue),
            const SizedBox(width: 8),
            Text(
              title,
              style: const TextStyle(fontSize: 16, fontWeight: FontWeight.bold),
            ),
          ],
        ),
      ),
    );
  }

  /// 扩展项（根据需求自定义）
  static Widget createCustomItem({
    required Widget child,
    double verticalPadding = 15,
    double horizontalPadding = 0,
  }) {
    return Padding(
      padding: EdgeInsets.symmetric(
        vertical: verticalPadding,
        horizontal: horizontalPadding,
      ),
      child: child,
    );
  }
  /// 标题加输入框上下排列
  static Widget createBuildMultilineInput(
      String label,
      String hint,
      TextEditingController controller,
      ) {
    return Container(
      height: 130,
      padding: const EdgeInsets.only(top: 8),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          HhTextStyleUtils.mainTitle(label, fontSize: 15),
          const SizedBox(height: 8),
          Expanded(
            child: TextField(
              controller: controller,
              keyboardType: TextInputType.multiline,
              maxLines: null,
              expands: true,
              style: const TextStyle(fontSize: 15),
              decoration: InputDecoration(
                hintText: hint,
                border: InputBorder.none,
              ),
            ),
          ),
        ],
      ),
    );
  }
}