import 'package:animated_tree_view/animated_tree_view.dart';
import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:starwork_flutter/api/model/team/request/get_depart_list_request.dart';
import 'package:starwork_flutter/api/model/team/response/depart_list_reponse.dart';
import 'package:starwork_flutter/api/service/team_api_service.dart';
import 'package:starwork_flutter/base/base_controller.dart';

class SelectPersonController extends BaseController {
  final teamApi = Get.find<TeamApiService>();
  final Rx<TreeNode?> treeData = Rx<TreeNode?>(null);
  TreeViewController? treeViewController;

  // 搜索输入框
  TextEditingController searchInputController = TextEditingController();

  var allPersonList = <PersonItem>[].obs;
  var selectPersonNoList = <String>[].obs;

  // 存储从参数传递过来的已选角色
  List<PersonItem>? initialSelectedPersons;

  @override
  void onReady() {
    super.onReady();
    // 获取传递的参数
    var arguments = Get.arguments;
    if (arguments != null && arguments is List<PersonItem>) {
      initialSelectedPersons = arguments;
    }
    requestDepartList();
    _setInitialSelectedIndexes();
  }

  requestDepartList() async {
    var response = await teamApi.requestDepartList(
      request: GetDepartListRequest(departNo: ''),
    );
    if (response.isSuccess) {
      // 转换数据为树形结构
      final tree = _convertToTree(response.data!.departList ?? []);
      treeData.value = tree;
      // 提取所有人员信息并更新 personList
      final allPersons = extractAllPersons();
      allPersonList.value = allPersons;

      treeViewController?.expandAllChildren(treeData.value ?? TreeNode.root());
    }
  }

  TreeNode _convertToTree(List<DepartItem> departList) {
    // 创建根节点
    final root = TreeNode.root();

    // 如果列表为空，直接返回根节点
    if (departList.isEmpty) {
      return root;
    }

    // 创建一个映射来存储所有部门节点，方便查找
    final Map<int, TreeNode> departNodeMap = {};

    // 先创建所有部门节点
    for (final depart in departList) {
      final node = TreeNode(
        key: depart.id.toString(),
        data: depart,
      );
      departNodeMap[depart.id!] = node;
    }

    // 建立部门间的父子关系
    for (final depart in departList) {
      final currentNode = departNodeMap[depart.id];
      if (currentNode == null) continue;

      // 建立部门间的父子关系
      if (depart.parentId == -1) {
        // 顶级部门添加到根节点下
        root.add(currentNode);
      } else {
        // 子部门添加到对应父部门下
        final parentNode = departNodeMap[depart.parentId];
        parentNode?.add(currentNode);
      }
    }

    // 将人员节点添加到对应的部门节点下（在所有部门结构建立完成后再添加）
    for (final depart in departList) {
      final currentNode = departNodeMap[depart.id];
      if (currentNode == null) continue;

      // 将该部门下的所有人员作为子节点添加
      if (depart.persons != null && depart.persons!.isNotEmpty) {
        // 对人员按某种规则排序（例如按姓名或ID）
        final sortedPersons = List<PersonItem>.from(depart.persons!);
        // 这里可以根据需要添加排序逻辑，例如按姓名排序：
        // sortedPersons.sort((a, b) => (a.personName ?? '').compareTo(b.personName ?? ''));

        for (final person in sortedPersons) {
          final personNode = TreeNode(
            key: 'person_${person.id}',
            data: person,
          );
          currentNode.add(personNode);
        }
      }
    }

    return root;
  }

// 提取所有人员信息的方法
  List<PersonItem> extractAllPersons() {
    final List<PersonItem> persons = [];

    // 递归遍历树节点
    void traverseTree(TreeNode? node) {
      if (node == null) return;

      // 如果当前节点是人员节点，添加到列表中
      if (node.data is PersonItem) {
        persons.add(node.data as PersonItem);
      }

      // 递归遍历所有子节点
      for (final child in node.childrenAsList) {
        traverseTree(child as TreeNode?);
      }
    }

    // 从根节点开始遍历
    traverseTree(treeData.value);

    return persons;
  }

  // 根据初始选中的角色设置对应的索引
  void _setInitialSelectedIndexes() {
    if (initialSelectedPersons != null && initialSelectedPersons!.isNotEmpty) {
      for (var selectedPerson in initialSelectedPersons!) {
        if (!selectPersonNoList.contains(selectedPerson.personNo)) {
          selectPersonNoList.add(selectedPerson.personNo!);
        }
      }
    }
    selectPersonNoList.refresh();
  }
}