import 'dart:async';

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:go_router/go_router.dart';
import 'package:news_app/main.dart';
import 'package:news_app/util/shared_prefs_instance_util.dart';
import 'package:news_app/util/toast_util.dart';
import 'package:news_app/widget/my_txt.dart';

import '../../constant/api_const.dart';
import '../../constant/color_res.dart';
import '../../constant/config.dart';
import '../../http/http_util.dart';

/// @author: bo.zeng
/// @email: cnhbwds@gmail.com
/// @date: 2025 2025/4/9 16:00
/// @description:
class LoginRegisterPage extends ConsumerStatefulWidget {
  const LoginRegisterPage({super.key});

  @override
  ConsumerState<LoginRegisterPage> createState() => _LoginRegisterPageState();
}

class _LoginRegisterPageState extends ConsumerState<LoginRegisterPage> {
  bool _isLogin = true;
  bool _agreeProtocol = false;
  Timer? _timer;
  int seconds = 60;

  bool usePasswordLogin = true;

  bool _obscureText1 = true; // 控制密码是否隐藏
  bool _obscureText2 = true; // 控制密码是否隐藏

  String _smsLabel = "获取验证码";
  final TextEditingController _phoneController = TextEditingController();
  final TextEditingController _passwordController = TextEditingController();
  final TextEditingController _password2Controller = TextEditingController();
  final TextEditingController _smsCodeController = TextEditingController();

  @override
  void dispose() {
    _phoneController.dispose();
    _passwordController.dispose();
    _password2Controller.dispose();
    _smsCodeController.dispose();
    _timer?.cancel();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.white,
      resizeToAvoidBottomInset: false,
      appBar: AppBar(
        backgroundColor: color5F59F7,
        systemOverlayStyle: SystemUiOverlayStyle(
          statusBarColor: color5F59F7,
          statusBarIconBrightness: Brightness.light, // 状态栏图标颜色
        ),
      ),
      body: Stack(
        children: [
          Positioned(
            child: GestureDetector(
              onTap: (){
                FocusScope.of(context).unfocus();
              },
              child: Container(
                height: 200.h,
                decoration: BoxDecoration(
                  gradient: LinearGradient(
                    colors: [color5F59F7, color6592FD, Colors.white],
                    begin: Alignment.topCenter,
                    end: Alignment.bottomCenter,
                  ),
                ),
              ),
            ),
          ),
          Padding(
            padding: EdgeInsets.only(left: 20.w, right: 20.w, top: 40.h),
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.stretch,
              children: [
                // 登录/注册标签
                Row(
                  spacing: 30.w,
                  children: [
                    GestureDetector(
                      onTap: _switchLoginOrRegister,
                      child: Column(
                        children: [
                          myTxt(
                            text: "登录",
                            fontSize: 20.sp,
                            fontWeight: FontWeight.bold,
                          ),
                          Container(
                            height: 4.h,
                            width: 40.w,
                            decoration: BoxDecoration(
                              color:
                                  _isLogin ? Colors.black : Colors.transparent,
                              borderRadius: BorderRadius.circular(8.r),
                            ),
                          ),
                        ],
                      ),
                    ),
                    GestureDetector(
                      onTap: _switchLoginOrRegister,
                      child: Column(
                        children: [
                          myTxt(
                            text: "注册",
                            fontSize: 20.sp,
                            fontWeight: FontWeight.bold,
                          ),
                          Container(
                            height: 4.h,
                            width: 40.w,
                            decoration: BoxDecoration(
                              color:
                                  _isLogin ? Colors.transparent : Colors.black,
                              borderRadius: BorderRadius.circular(8.r),
                            ),
                          ),
                        ],
                      ),
                    ),
                  ],
                ),
                SizedBox(height: 24.h),

                GestureDetector(
                  onTap: (){
                    FocusScope.of(context).unfocus();
                  },
                  child: Container(
                    padding: EdgeInsets.symmetric(
                      horizontal: 16.w,
                      vertical: 20.h,
                    ),
                    decoration: BoxDecoration(
                      color: Colors.white,
                      borderRadius: BorderRadius.circular(8.r),
                    ),
                    alignment: Alignment.center,
                    child: Column(
                      spacing: 16.h,
                      crossAxisAlignment: CrossAxisAlignment.start,
                      children: [
                        myTxt(text: "帐号", fontSize: 14.sp),
                        TextField(
                          textInputAction: TextInputAction.next,
                          keyboardType: TextInputType.phone,
                          controller: _phoneController,
                          decoration: InputDecoration(
                            prefixIcon: Icon(
                              Icons.phone_android,
                              color: Colors.grey,
                            ),
                            border: OutlineInputBorder(
                              borderRadius: BorderRadius.circular(8.r),
                              borderSide: BorderSide.none,
                            ),
                            filled: true,
                            fillColor: colorF5F7FD,
                            contentPadding: EdgeInsets.symmetric(
                              horizontal: 16.w,
                              vertical: 10.h,
                            ),
                            hintText: '请输入手机号',
                            hintStyle: TextStyle(color: Colors.grey),
                          ),
                        ),

                        if (_isLogin && !usePasswordLogin)
                          myTxt(text: "验证码", fontSize: 14.sp),
                        if (_isLogin && !usePasswordLogin)
                          TextField(
                            textInputAction: TextInputAction.done,
                            keyboardType: TextInputType.number,
                            controller: _smsCodeController,
                            decoration: InputDecoration(
                              prefixIcon: Icon(
                                Icons.safety_check,
                                color: Colors.grey,
                              ),
                              suffixIcon: Padding(
                                padding: EdgeInsets.only(right: 10.w, top: 13.h),
                                child: GestureDetector(
                                  onTap: _startSmsCodeTimer,
                                  child: myTxt(
                                    text: _smsLabel,
                                    color: color5F59F7,
                                    fontSize: 12.sp,
                                    fontWeight: FontWeight.bold,
                                  ),
                                ),
                              ),
                              border: OutlineInputBorder(
                                borderRadius: BorderRadius.circular(8.r),
                                borderSide: BorderSide.none,
                              ),
                              filled: true,
                              fillColor: colorF5F7FD,
                              contentPadding: EdgeInsets.symmetric(
                                horizontal: 16.w,
                                vertical: 10.h,
                              ),
                              hintText: '请输入验证码',
                              hintStyle: TextStyle(color: Colors.grey),
                            ),
                          ),
                        if (usePasswordLogin || !_isLogin)
                          myTxt(text: "密码", fontSize: 14.sp),
                        if (usePasswordLogin || !_isLogin)
                          TextField(
                            obscureText: _obscureText1,
                            controller: _passwordController,
                            textInputAction: TextInputAction.done,
                            keyboardType: TextInputType.text,
                            decoration: InputDecoration(
                              prefixIcon: Icon(
                                Icons.lock_outline,
                                color: Colors.grey,
                              ),
                              suffixIcon: IconButton(
                                onPressed: () {
                                  setState(() {
                                    _obscureText1 = !_obscureText1;
                                  });
                                },
                                icon: Icon(
                                  _obscureText1
                                      ? Icons.visibility_off
                                      : Icons.visibility,
                                  color: Colors.grey,
                                ),
                              ),
                              border: OutlineInputBorder(
                                borderRadius: BorderRadius.circular(8.r),
                                borderSide: BorderSide.none,
                              ),

                              filled: true,
                              fillColor: colorF5F7FD,
                              contentPadding: EdgeInsets.symmetric(
                                horizontal: 16.w,
                                vertical: 10.h,
                              ),
                              hintText: '请输入密码',
                              hintStyle: TextStyle(color: Colors.grey),
                            ),
                          ),
                        if (_isLogin)
                          Center(
                            child: TextButton(
                              onPressed: () {
                                setState(() {
                                  usePasswordLogin = !usePasswordLogin;
                                });
                              },
                              child: myTxt(
                                text: usePasswordLogin ? "使用验证码登录" : "使用密码登录",
                              ),
                            ),
                          ),

                        if (!_isLogin) myTxt(text: "确认密码", fontSize: 14.sp),
                        if (!_isLogin)
                          TextField(
                            obscureText: _obscureText2,
                            controller: _password2Controller,
                            textInputAction: TextInputAction.done,
                            keyboardType: TextInputType.text,
                            decoration: InputDecoration(
                              prefixIcon: Icon(
                                Icons.lock_outline,
                                color: Colors.grey,
                              ),
                              suffixIcon: IconButton(
                                onPressed: () {
                                  setState(() {
                                    _obscureText2 = !_obscureText2;
                                  });
                                },
                                icon: Icon(
                                  _obscureText2
                                      ? Icons.visibility_off
                                      : Icons.visibility,
                                  color: Colors.grey,
                                ),
                              ),
                              border: OutlineInputBorder(
                                borderRadius: BorderRadius.circular(8.r),
                                borderSide: BorderSide.none,
                              ),

                              filled: true,
                              fillColor: colorF5F7FD,
                              contentPadding: EdgeInsets.symmetric(
                                horizontal: 16.w,
                                vertical: 10.h,
                              ),
                              hintText: '请再输入密码',
                              hintStyle: TextStyle(color: Colors.grey),
                            ),
                          ),

                        // Align(
                        //   alignment: Alignment.centerRight,
                        //   child: myTxt(
                        //     text: "忘记密码",
                        //     color: color5F59F7,
                        //     fontSize: 12.sp,
                        //     fontWeight: FontWeight.bold,
                        //   ),
                        // ),
                      ],
                    ),
                  ),
                ),
                SizedBox(height: 16.h),
                _buildProtocolAgreement(),
                SizedBox(height: 24.h),

                // 登录/注册按钮
                GestureDetector(
                  onTap: () {
                    _submitForm(context, ref);
                  },
                  child: Container(
                    margin: EdgeInsets.symmetric(horizontal: 28.w),
                    height: 42.h,
                    decoration: BoxDecoration(
                      borderRadius: BorderRadius.circular(20.r),
                      gradient: LinearGradient(
                        colors: [color5F59F7, color6592FD],
                        begin: Alignment.centerLeft,
                        end: Alignment.centerRight,
                      ),
                    ),
                    alignment: Alignment.center,
                    child: myTxt(
                      text: _isLogin ? "登录" : "注册",
                      color: Colors.white,
                      fontSize: 15.sp,
                    ),
                  ),
                ),
                SizedBox(height: 45.h),
                // Row(
                //   spacing: 10.w,
                //   children: [
                //     Expanded(child: Container(height: 1, color: color979797)),
                //     myTxt(text: "其他帐户登录", fontSize: 11.sp, color: color444D43),
                //     Expanded(child: Container(height: 1, color: color979797)),
                //   ],
                // ),
                SizedBox(height: 20.h),
                // Row(
                //   spacing: 20.w,
                //   mainAxisAlignment: MainAxisAlignment.center,
                //   children: [
                //     GestureDetector(
                //       onTap: () {},
                //       child: Image.asset(
                //         Assets.images.wxIcon.path,
                //         width: 52.w,
                //         height: 52.w,
                //       ),
                //     ),
                //     GestureDetector(
                //       onTap: () {},
                //       child: Image.asset(
                //         Assets.images.wbIcon.path,
                //         width: 52.w,
                //         height: 52.w,
                //       ),
                //     ),
                //     GestureDetector(
                //       onTap: () {},
                //       child: Image.asset(
                //         Assets.images.qqIcon.path,
                //         width: 52.w,
                //         height: 52.w,
                //       ),
                //     ),
                //   ],
                // ),
              ],
            ),
          ),
        ],
      ),
    );
  }

  void _switchLoginOrRegister() {
    setState(() {
      _isLogin = !_isLogin;
    });
  }

  void _startSmsCodeTimer() async {
    if (seconds != 60 || _timer?.isActive == true) {
      //防止重复触发
      return;
    }
    String mobile = _phoneController.text;
    if (mobile.isEmpty) {
      showToast("手机号不能为空");
      return;
    }
    await HttpUtil().post(apiSendLoginSMSCode, data: {"mobile": mobile});

    _timer = Timer.periodic(Duration(seconds: 1), (timer) {
      if (seconds > 0) {
        setState(() {
          seconds--;
          if (seconds >= 10) {
            _smsLabel = "${seconds}s后重发";
          } else {
            _smsLabel = "0${seconds}s后重发";
          }
        });
      } else {
        _smsLabel = "获取验证码";
        seconds = 60;
        _timer?.cancel();
        setState(() {});
        // 这里可以触发倒计时结束后的逻辑
      }
    });
  }

  Widget _buildProtocolAgreement() {
    return Row(
      mainAxisAlignment: MainAxisAlignment.center,
      crossAxisAlignment: CrossAxisAlignment.center,
      spacing: 1.w,
      children: [
        SizedBox(
          width: 32.w,
          height: 32.w,
          child: Checkbox(
            activeColor: color5F59F7,
            value: _agreeProtocol,
            onChanged: (value) {
              setState(() {
                _agreeProtocol = value ?? false;
              });
            },
          ),
        ),
        GestureDetector(
          onTap: () {
            context.push("/user/privacy");
          },
          child: Container(
            color: Colors.white,
            child: Text.rich(
              TextSpan(
                children: [
                  TextSpan(
                    text: _isLogin ? '登录即同意' : '注册即同意',
                    style: TextStyle(fontSize: 11.sp),
                  ),
                  TextSpan(
                    text: '《新华新消费服务协议》',
                    style: TextStyle(color: color5F59F7, fontSize: 11.sp),
                  ),
                  TextSpan(text: '和', style: TextStyle(fontSize: 11.sp)),
                  TextSpan(
                    text: '《隐私政策》',
                    style: TextStyle(color: color5F59F7, fontSize: 11.sp),
                  ),
                ],
              ),
            ),
          ),
        ),
      ],
    );
  }

  bool isPhoneNumber(String input) {
    final RegExp phoneRegex = RegExp(r'^1[3-9]\d{9}$');
    return phoneRegex.hasMatch(input);
  }

  bool isPasswordValid(String password) {
    // 至少包含一个字母和一个数字，长度至少6位
    final RegExp passwordRegex = RegExp(
      r'^(?=.*[A-Za-z])(?=.*\d)[A-Za-z\d]{8,}$',
    );
    return passwordRegex.hasMatch(password);
  }

  void _submitForm(BuildContext context, WidgetRef ref) async {
    if (!_agreeProtocol) {
      showToast("请先同意服务协议");
      return;
    }
    String uid = _phoneController.text;
    String password = _passwordController.text;
    String password2 = _password2Controller.text;
    //  String smsCode = _smsCodeController.text;
    if (uid.isEmpty || isPhoneNumber(uid) == false) {
      showToast("请输入手机号");
      return;
    }
    if (usePasswordLogin && password.isEmpty) {
      showToast("请输入密码");
      return;
    }

    if (!_isLogin) {
      if (password != password2) {
        showToast("密码不一致");
        return;
      }

      if (isPasswordValid(password) == false) {
        showToast("密码长度需大于8位，并包含字母和数字");
        return;
      }
    }

    if (!_isLogin) {
      //注册
      uuid = await HttpUtil().post(
        apiRegister,
        data: {"type": "phone", "phonenumber": uid, "password": password},
      );
    } else {
      //登录
      if (usePasswordLogin) {
        uuid = await HttpUtil().post(
          apiLogin,
          data: {"username": uid, "password": password},
        );
      } else {
        String smsCode = _smsCodeController.text;
        if (smsCode.isEmpty) {
          showToast("请输入验证码");
          return;
        }
        uuid = await HttpUtil().post(
          apiLoginSMSCode,
          data: {"mobile": uid, "code": smsCode},
        );
      }
    }
    if (uuid.isEmpty) {
      return;
    }
    saveUuid(uuid);
    ref.read(globalUserProvider.notifier).fetchUserInfo();
    if (context.mounted) context.go("/main");
  }
}