import 'dart:io';
import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:image_picker/image_picker.dart';
import '../../api/api_client.dart';
import '../../api/api_client_info.dart';
import '../../common_widget/app_data.dart';
import '../../view_model/home_view_model.dart';
import '../../view/main_tab_view/main_tab_view.dart';

class UserInfo extends StatefulWidget {
  const UserInfo({super.key});

  @override
  State<UserInfo> createState() => _UserInfoState();
}

class _UserInfoState extends State<UserInfo> {
  final listVM = Get.put(HomeViewModel());
  final TextEditingController _controller = TextEditingController();
  File? _selectedImage;

  @override
  Widget build(BuildContext context) {
    return Container(
      decoration: const BoxDecoration(
        image: DecorationImage(
          image: AssetImage("assets/img/app_bg.png"),
          fit: BoxFit.cover,
        ),
      ),
      child: Scaffold(
        backgroundColor: Colors.transparent,
        appBar: AppBar(
          centerTitle: true,
          backgroundColor: Colors.transparent,
          elevation: 0,
          leading: IconButton(
            onPressed: () {
              // 返回到 MainTabView 并切换到“个人”标签页
              Get.back(); // 关闭当前页面并返回到主界面

              // 等待页面关闭后再切换标签
              Future.delayed(Duration(milliseconds: 100), () {
                // 查找 MainTabView 并获取 TabController
                final mainTabController = Get.find<MainTabView>().getController(context);
                if (mainTabController != null) {
                  mainTabController.index = 3; // 切换到“个人”标签页的索引
                }
              });
            },
            icon: Image.asset(
              "assets/img/back.png",
              width: 25,
              height: 25,
              fit: BoxFit.contain,
            ),
          ),
          title: const Text(
            "账户信息",
            style: TextStyle(
                color: Colors.black, fontSize: 25, fontWeight: FontWeight.w400),
          ),
        ),
        body: SingleChildScrollView(
          child: Column(
            children: [
              _buildAvatarRow(),
              _buildNicknameRow(),
            ],
          ),
        ),
      ),
    );
  }

  // 构建头像行
  Widget _buildAvatarRow() {
    return Container(
      height: 80,
      color: Colors.white.withOpacity(0.6),
      padding: const EdgeInsets.only(left: 48, right: 25),
      child: InkWell(
        onTap: () {
          _bottomSheet(context);
        },
        child: Row(
          mainAxisAlignment: MainAxisAlignment.spaceBetween,
          children: [
            const Text(
              "头像",
              style: TextStyle(fontSize: 20),
            ),
            Row(
              children: [
                _buildAvatarImage(),
                const SizedBox(width: 20),
                Image.asset(
                  "assets/img/user_next.png",
                  width: 25,
                  height: 25,
                ),
              ],
            ),
          ],
        ),
      ),
    );
  }

  // 构建昵称行
  Widget _buildNicknameRow() {
    return Container(
      height: 80,
      color: Colors.white.withOpacity(0.6),
      padding: const EdgeInsets.only(left: 48, right: 25),
      child: InkWell(
        onTap: () {
          _showNicknameDialog();
        },
        child: Row(
          mainAxisAlignment: MainAxisAlignment.spaceBetween,
          children: [
            const Text(
              "昵称",
              style: TextStyle(fontSize: 20),
            ),
            Row(
              children: [
                Text(
                  AppData().currentUsername,
                  style: const TextStyle(fontSize: 20),
                ),
                const SizedBox(width: 15),
                Image.asset(
                  "assets/img/user_next.png",
                  width: 25,
                  height: 25,
                ),
              ],
            ),
          ],
        ),
      ),
    );
  }

  // 显示头像的 Widget，根据是否是网络 URL 或本地路径来动态加载
  Widget _buildAvatarImage() {
    final avatarPath = AppData().currentAvatar;
    if (avatarPath.startsWith('http')) {
      return Image.network(
        avatarPath,
        width: 64,
        height: 64,
      );
    } else {
      return Image.file(
        File(avatarPath),
        width: 64,
        height: 64,
      );
    }
  }

  Future _bottomSheet(BuildContext context) async {
    final picker = ImagePicker();
    await showModalBottomSheet(
      context: context,
      backgroundColor: Colors.white,
      shape: const RoundedRectangleBorder(
          borderRadius: BorderRadius.vertical(top: Radius.circular(30))),
      builder: (context) => Container(
        height: 132,
        padding: const EdgeInsets.only(top: 20),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.stretch,
          children: [
            ElevatedButton(
              onPressed: () async {
                Navigator.pop(context);
                final pickedFile =
                await picker.pickImage(source: ImageSource.gallery);
                if (pickedFile != null) {
                  _selectedImage = File(pickedFile.path);
                  setState(() {}); // 更新 UI

                  // 上传头像
                  await ChangeApiClient().changeHeader(
                      Authorization: AppData().currentToken,
                      avatar: _selectedImage!);

                  // 更新本地存储
                  _updatetouxiang(_selectedImage!.path);
                  // 拉取更新后的用户信息
                  await GetInfoApiClient().getInfo(
                      Authorization: AppData().currentToken);
                }
              },
              style: ElevatedButton.styleFrom(
                backgroundColor: Colors.transparent,
                elevation: 0,
                padding: const EdgeInsets.symmetric(vertical: 12),
                tapTargetSize: MaterialTapTargetSize.shrinkWrap,
              ),
              child: const Text(
                "从相册上传头像",
                style: TextStyle(color: Colors.black, fontSize: 18),
              ),
            ),
            ElevatedButton(
              onPressed: () => Navigator.pop(context),
              style: ElevatedButton.styleFrom(
                backgroundColor: const Color(0xff429482),
                padding: const EdgeInsets.symmetric(vertical: 18),
                tapTargetSize: MaterialTapTargetSize.shrinkWrap,
                shape: const RoundedRectangleBorder(
                  borderRadius: BorderRadius.zero,
                ),
              ),
              child: const Text(
                "取消",
                style: TextStyle(color: Colors.black, fontSize: 18),
              ),
            ),
          ],
        ),
      ),
    );
  }

  void _showNicknameDialog() {
    showDialog(
      context: context,
      builder: (BuildContext context) {
        return AlertDialog(
          title: const Center(
              child: Text(
                "修改昵称",
                style: TextStyle(fontSize: 20),
              )),
          content: TextField(
            controller: _controller,
            decoration: const InputDecoration(hintText: '请输入新昵称'),
          ),
          actions: <Widget>[
            TextButton(
              onPressed: () {
                Navigator.of(context).pop();
              },
              style: TextButton.styleFrom(
                backgroundColor: const Color(0xff429482),
                minimumSize: const Size(130, 50),
                shape: RoundedRectangleBorder(
                  borderRadius: BorderRadius.circular(5.0),
                ),
              ),
              child: const Text(
                "取消",
                style: TextStyle(color: Colors.white),
              ),
            ),
            TextButton(
              onPressed: () async {
                _updateNickname();
                await ChangeApiClient().changeName(
                    Authorization: AppData().currentToken,
                    userName: AppData().currentUsername);
                Navigator.of(context).pop();
              },
              style: TextButton.styleFrom(
                backgroundColor: const Color(0xff429482),
                minimumSize: const Size(130, 50),
                shape: RoundedRectangleBorder(
                  borderRadius: BorderRadius.circular(5.0),
                ),
              ),
              child: const Text(
                "保存",
                style: TextStyle(color: Colors.white),
              ),
            ),
          ],
        );
      },
    );
  }

  void _updateNickname() {
    setState(() {
      AppData appData = AppData();
      appData.box.write('currentUsername', _controller.text);
    });
  }

  void _updatetouxiang(String path) {
    setState(() {
      AppData appData = AppData();
      appData.box.write('currentAvatar', path); // 更新头像路径到本地存储
    });
  }
}