import 'dart:io';

import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:image_picker/image_picker.dart';
import 'package:sk_base_mobile/apis/api.dart';
import 'package:sk_base_mobile/app_theme.dart';
import 'package:sk_base_mobile/constants/bg_color.dart';
import 'package:sk_base_mobile/constants/enum.dart';
import 'package:sk_base_mobile/models/role.model.dart';
import 'package:sk_base_mobile/models/user_info.model.dart';
import 'package:sk_base_mobile/router/router.util.dart';
import 'package:sk_base_mobile/screens/hr_manage/components/dept_picker.dart';
import 'package:sk_base_mobile/util/loading_util.dart';
import 'package:sk_base_mobile/util/logger_util.dart';
import 'package:sk_base_mobile/util/media_util.dart';
import 'package:sk_base_mobile/util/screen_adaper_util.dart';
import 'package:sk_base_mobile/util/snack_bar.util.dart';
import 'package:sk_base_mobile/util/util.dart';
import 'package:sk_base_mobile/widgets/common/multi-picker/models/value_item.dart';
import 'package:sk_base_mobile/widgets/core/sk_cascade_picker.dart';
import 'package:sk_base_mobile/widgets/core/sk_dialog_header.dart';
import 'package:sk_base_mobile/widgets/form_item/sk_multi_picker.dart';
import 'package:sk_base_mobile/widgets/form_item/sk_text_input.dart';
import 'package:sk_base_mobile/widgets/gradient_button.dart';
import 'package:sk_base_mobile/widgets/loading_indicator.dart';

/// 编辑用户信息
class EditUserInfo extends StatelessWidget {
  final int userId;
  final EditUserInfoController controller;
  EditUserInfo({super.key, required this.userId})
      : controller = Get.put(EditUserInfoController(userId));

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      // appBar: PreferredSize(
      //   preferredSize: Size.fromHeight(40),
      //   child: AppBar(elevation: 0, title: const Text('首页')),
      // ),
      backgroundColor: AppTheme.nearlyWhite,
      body: buildBody(),
    );
    // return  buildBody()
  }

  Widget buildBody() {
    return Column(
      children: [
        const SkDialogHeader(
          title: '编辑员工信息',
        ),
        Expanded(
            child: GestureDetector(
                onTap: () {
                  FocusScope.of(Get.context!).requestFocus(FocusNode());
                },
                child: Obx(() => controller.loading.value
                    ? const LoadingIndicator(
                        common: true,
                      )
                    : SingleChildScrollView(
                        child: Container(
                          padding: EdgeInsets.symmetric(
                              horizontal: ScreenAdaper.height(15),
                              vertical: ScreenAdaper.height(15)),
                          child: Column(children: [
                            buildAvatar(),
                            SizedBox(
                              height: ScreenAdaper.height(defaultPadding),
                            ),

                            /// 姓名
                            SkTextInput(
                              isDense: true,
                              isRequired: true,
                              textController: controller.nicknameEditController,
                              customLabel: true,
                              labelText: '姓名',
                            ),
                            SizedBox(
                              height: ScreenAdaper.height(defaultPadding),
                            ),

                            /// 部门
                            SkTextInput(
                              isDense: true,
                              customLabel: true,
                              isRequired: true,
                              keyboardType: TextInputType.none,
                              textController: controller.deptEditController,
                              labelText: '所属部门',
                              onTap: (_) async {
                                Get.bottomSheet(
                                    DeptPicker(onSelected: (CascadeItem item) {
                                  controller.deptEditController.text =
                                      item.label;
                                  controller.deptId = item.value;
                                }));
                              },
                            ),
                            SizedBox(
                              height: ScreenAdaper.height(defaultPadding),
                            ),

                            /// 角色
                            SkMultiPickerDropdown<int>(
                              isDense: true,
                              customLabel: true,
                              labelText: '角色',
                              isRequired: true,
                              hint: '选择角色',
                              options: controller.roles,
                              onOptionSelected:
                                  (List<ValueItem<int>> selectedData) => {
                                controller.roleSelection.assignAll(selectedData)
                              },
                              selectedOptions: controller.roleSelection,
                            ),
                            SizedBox(
                              height: ScreenAdaper.height(defaultPadding),
                            ),
                            SkTextInput(
                              isDense: true,
                              isRequired: true,
                              textController: controller.usernameEditController,
                              customLabel: true,
                              labelText: '登录用户名',
                            ),
                            SizedBox(
                              height: ScreenAdaper.height(defaultPadding),
                            ),
                            SkTextInput(
                              isDense: true,
                              customLabel: true,
                              textController: controller.phoneEditController,
                              labelText: '手机号',
                            ),
                            SizedBox(
                              height: ScreenAdaper.height(defaultPadding),
                            ),
                            SkTextInput(
                              isDense: true,
                              customLabel: true,
                              textController: controller.emailEditController,
                              labelText: '邮箱',
                            ),
                          ]),
                        ),
                      )))),
        SizedBox(
          height: ScreenAdaper.height(10),
        ),
        GradientButton(
          borderRadius: BorderRadius.zero,
          onPressed: controller.submit,
          buttonText: '保存',
        )
      ],
    );
  }

  Widget buildAvatar() {
    return Column(
      children: [
        SizedBox(
          height: ScreenAdaper.height(10),
        ),
        Obx(() => controller.filePath.isEmpty &&
                controller.userInfo.value.avatar == null
            ? buildImageUploader()
            : builderImagePreview()),
      ],
    );
  }

  Widget builderImagePreview() {
    return Stack(
      children: [
        Container(
          margin: EdgeInsets.symmetric(horizontal: ScreenAdaper.width(5)),
          width: ScreenAdaper.width(180),
          height: ScreenAdaper.width(180),
          decoration: BoxDecoration(
            borderRadius: BorderRadius.circular(20),
            border: Border.all(width: 1.0, color: AppTheme.dividerColor),
            // color: AppTheme.primaryColor,
          ),
          child: Center(
            child: Container(
                decoration: BoxDecoration(
              borderRadius: BorderRadius.circular(10),
              image: DecorationImage(
                  fit: BoxFit.cover,
                  image: controller.filePath.value.isNotEmpty
                      ? FileImage(File(controller.filePath.value))
                      : NetworkImage(MediaUtil.getMediaUrl(
                              controller.userInfo.value.avatar))
                          as ImageProvider<Object>),
            )),
          ),
        ),
        Positioned(
            top: ScreenAdaper.height(5),
            right: ScreenAdaper.width(5),
            child: GestureDetector(
              onTap: () {
                controller.filePath.value = '';
                controller.userInfo.value.avatar = null;
              },
              child: Icon(
                Icons.close,
                shadows: const [
                  Shadow(
                    color: Colors.black,
                    offset: Offset(1, 1),
                    blurRadius: 3,
                  ),
                  Shadow(
                    color: Colors.black,
                    offset: Offset(-1, -1),
                    blurRadius: 3,
                  ),
                ],
                size: ScreenAdaper.height(40),
                color: AppTheme.nearlyWhite,
              ),
            ))
      ],
    );
  }

  // 上传照片控制器
  Widget buildImageUploader() {
    return GestureDetector(
        onTap: () {
          controller.photoPicker();
        },
        child: Container(
            margin: EdgeInsets.symmetric(horizontal: ScreenAdaper.width(5)),
            width: ScreenAdaper.width(180),
            height: ScreenAdaper.width(180),
            decoration: BoxDecoration(
              borderRadius: BorderRadius.circular(100),
              border: Border.all(width: 1.0, color: AppTheme.dividerColor),
              // color: AppTheme.primaryColor,
            ),
            child: Center(
                child: Icon(
              Icons.add_a_photo_rounded,
              size: ScreenAdaper.height(60),
              color: AppTheme.primaryColor,
            ))));
  }
}

class EditUserInfoController extends GetxController {
  final int userId;
  EditUserInfoController(this.userId);

  final deptEditController = TextEditingController();
  final nicknameEditController = TextEditingController();
  final usernameEditController = TextEditingController();
  final phoneEditController = TextEditingController();
  final emailEditController = TextEditingController();
  final userInfo = Rx<UserInfoModel>(UserInfoModel());
  final RxList<ValueItem<int>> roles = RxList([]);
  final RxBool loading = false.obs;
  final List<ValueItem<int>> roleSelection = [];
  int? deptId;
  final filePath = ''.obs;
  @override
  onReady() {
    init();
    super.onReady();
  }

  init() async {
    loading.value = true;
    await Future.wait([getUserInfo(), getRoles()]);
    loading.value = false;
  }

  Future<void> submit() async {
    Map data = {
      'nickname': nicknameEditController.text,
      'deptId': deptId,
      'username': usernameEditController.text,
      'phone': phoneEditController.text,
      'roleIds': roleSelection.map((e) => e.value).toList()
    };
    if (nicknameEditController.text.isEmpty) {
      SnackBarUtil().error(
        '姓名不能为空',
      );
      return;
    }
    if (deptId == null) {
      SnackBarUtil().error(
        '部门不能为空',
      );
      return;
    }

    if (usernameEditController.text.isEmpty) {
      SnackBarUtil().error(
        '登录名不能为空',
      );
      return;
    }
    if (roleSelection.map((e) => e.value).toList().isEmpty) {
      SnackBarUtil().error(
        '角色至少选择一个基础员工角色',
      );
      return;
    }
    await LoadingUtil.to.show(status: '保存中请稍后...');
    try {
      if (filePath.value.isNotEmpty) {
        // 批量同时上传
        final res = await MediaUtil().uploadImg(File(filePath.value));
        if (res != null) {
          data['avatar'] = res.path;
        }
      }

      await Api.updateUserInfo(userInfo.value.id!, data);
      await LoadingUtil.to.dismiss();
      final resUser = await Api.getUserInfo(userInfo.value.id!);
      if (resUser.data != null) {
        userInfo.value = UserInfoModel.fromJson(resUser.data);
      }
      await RouterUtil.back<UserInfoModel>(result: userInfo.value);
      SnackBarUtil().success(
        '保存成功',
      );
    } catch (e) {
      LoggerUtil().error(e);
    } finally {
      LoadingUtil.to.dismiss();
    }
  }

  Future<void> getRoles() async {
    try {
      await Future.delayed(const Duration(milliseconds: 500));
      final res =
          await Api.getRoles({'page': 1, 'pageSize': 30, 'useForSelect': 1});
      if (res.data != null) {
        List<ValueItem<int>> result = res.data!.items.map<ValueItem<int>>((e) {
          RoleModel data = RoleModel.fromJson(e);
          return ValueItem(
              label: data.name, value: data.id!, subLabel: data.remark);
        }).toList();
        final rootRole = userInfo.value.roles
            .firstWhereOrNull((element) => element.id == ROOT_ROLE_ID);
        if (rootRole != null) {
          result.add(ValueItem(
              label: rootRole.name,
              value: rootRole.id,
              subLabel: rootRole.remark));
        }

        roles.assignAll(result);
      }
    } catch (e) {
      LoggerUtil().error(e);
    }
  }

  Future<void> getUserInfo() async {
    try {
      final response = await Api.getUserInfo(userId);
      if (response.data != null) {
        userInfo.value = UserInfoModel.fromJson(response.data);
        nicknameEditController.text = userInfo.value.nickname ?? '';
        usernameEditController.text = userInfo.value.username ?? '';
        deptEditController.text = userInfo.value.dept?.name ?? '';
        phoneEditController.text = userInfo.value.phone ?? '';
        emailEditController.text = userInfo.value.email ?? '';
        deptId = userInfo.value.dept?.id;
        roleSelection.assignAll(userInfo.value!.roles
            .map<ValueItem<int>>((data) => ValueItem(
                  label: data.name,
                  value: data.id!,
                ))
            .toList());
      }
    } catch (e) {
      SnackBarUtil().error('$e');
    } finally {}
  }

  Future<void> photoPicker() async {
    await MediaUtil().showPicker(callback: (path) async {
      if (path != null) {
        filePath.value = path;
        // 拿到照片大小多少MB
        final file = File(path);
        final size = await file.length();
        final sizeInMb = size / (1024 * 1024);
        print(sizeInMb);
        // if (sizeInMb > 2) {
        //   SnackBarUtil().error('图片大小不能超过2MB');
        //   filePath.value = '';
        // }
      }
    });
  }
}