import { get } from '../axios-client';
import { API_BASE_URL } from '../../config/api-config';

// 用户信息接口
export interface UserInfo {
  id: number;
  username: string;
  nick_name: string;
  ou_id: string;
  ou_name: string;
  is_leader: boolean;
  status: number;
}

// 组织节点接口
export interface OrganizationNode {
  ou_id: string;
  ou_name: string;
  parent_ou_id: string | null;
  level: number;
  children: OrganizationNode[];
  users: UserInfo[];
}

// 组织架构响应接口
export interface OrganizationResponse {
  organizations: OrganizationNode[];
  total_organizations: number;
  total_users: number;
}

// 用户列表响应接口
export interface UserListResponse {
  users: UserInfo[];
  total: number;
}

// API响应格式
export interface ApiResponse<T> {
  success: boolean;
  data?: T;
  error?: string;
  message?: string;
  status?: number;
}

/**
 * 获取组织架构树
 * @param includeUsers 是否包含用户信息
 * @returns 组织架构树
 */
export async function getOrganizationTree(includeUsers: boolean = true, jwtToken?: string): Promise<ApiResponse<OrganizationResponse>> {
  try {
    console.log('开始调用获取组织架构API');

    let responseData: OrganizationResponse;

    if (jwtToken) {
      // 如果提供了JWT Token，则使用fetch并携带Authorization头
      const url = `${API_BASE_URL}/admin/users/organizations?include_users=${includeUsers}`;
      const response = await fetch(url, {
        headers: {
          'Authorization': `Bearer ${jwtToken}`,
          'Content-Type': 'application/json'
        }
      });

      if (!response.ok) {
        const errorText = await response.text();
        console.error('获取组织架构失败 (fetch):', errorText);
        return {
          success: false,
          error: `HTTP error! status: ${response.status}, ${errorText}`
        };
      }
      responseData = await response.json();
    } else {
      // 否则，使用原有的get方法
      const response = await get<OrganizationResponse>(
        `/admin/users/organizations?include_users=${includeUsers}`
      );

      if (response.error || !response.data) {
        console.error('获取组织架构失败 (get):', response.error);
        return {
          success: false,
          error: response.error || '获取组织架构数据失败'
        };
      }
      responseData = response.data;
    }

    console.log('组织架构API响应:', responseData);

    return {
      success: true,
      data: responseData
    };
  } catch (error) {
    console.error('获取组织架构失败:', error);
    return {
      success: false,
      error: error instanceof Error ? error.message : '获取组织架构失败'
    };
  }
}

/**
 * 获取用户列表
 * @param params 查询参数
 * @returns 用户列表
 */
export async function getUserList(params: {
  page?: number;
  page_size?: number;
  ou_id?: string;
  is_leader?: boolean;
  status?: number;
  search?: string;
} = {}): Promise<ApiResponse<UserListResponse>> {
  try {
    console.log('开始调用获取用户列表API，参数:', params);
    
    const queryParams = new URLSearchParams();
    if (params.page) queryParams.append('page', params.page.toString());
    if (params.page_size) queryParams.append('page_size', params.page_size.toString());
    if (params.ou_id) queryParams.append('ou_id', params.ou_id);
    if (params.is_leader !== undefined) queryParams.append('is_leader', params.is_leader.toString());
    if (params.status !== undefined) queryParams.append('status', params.status.toString());
    if (params.search) queryParams.append('search', params.search);

    const response = await get<UserListResponse>(
      `/admin/users/users?${queryParams.toString()}`
    );

    console.log('用户列表API响应:', response);
    
    if (response.error) {
      console.error('获取用户列表失败:', response.error);
      return {
        success: false,
        error: response.error
      };
    }

    return {
      success: true,
      data: response.data
    };
  } catch (error) {
    console.error('获取用户列表失败:', error);
    return {
      success: false,
      error: error instanceof Error ? error.message : '获取用户列表失败'
    };
  }
}

/**
 * 将组织架构数据转换为前端树形选择器格式
 * @param organizations 组织架构数据
 * @returns 前端树形选择器格式的数据
 */
export function convertToTreeData(organizations: OrganizationNode[]): Array<{
  label: string;
  value: string;
  children?: Array<{
    label: string;
    value: string;
    isUser?: boolean;
    userInfo?: UserInfo;
  }>;
}> {
  return organizations.map(org => {
    // 递归处理子组织
    const subOrganizations = org.children && org.children.length > 0 ? convertToTreeData(org.children) : [];
    // 添加该组织下的用户
    const userChildren = (org.users && org.users.length > 0)
      ? org.users.map(user => ({
          label: user.nick_name,
          value: `user_${user.id}`,
          isUser: true,
          userInfo: user
        }))
      : [];
    // 合并子组织和用户
    const children = [...subOrganizations, ...userChildren];
    return {
      label: org.ou_name,
      value: org.ou_id,
      children: children.length > 0 ? children : undefined
    };
  });
}

/**
 * 获取扁平化组织列表
 * @param includeUsers 是否包含用户信息
 * @returns 扁平化组织列表
 */
export async function getFlatOrganizations(includeUsers: boolean = true): Promise<ApiResponse<OrganizationResponse>> {
  try {
    console.log('开始调用获取扁平化组织列表API');
    
    const response = await get<OrganizationResponse>(
      `/admin/users/organizations/flat?include_users=${includeUsers}`
    );

    console.log('扁平化组织列表API响应:', response);
    
    if (response.error) {
      console.error('获取扁平化组织列表失败:', response.error);
      return {
        success: false,
        error: response.error
      };
    }

    return {
      success: true,
      data: response.data
    };
  } catch (error) {
    console.error('获取扁平化组织列表失败:', error);
    return {
      success: false,
      error: error instanceof Error ? error.message : '获取扁平化组织列表失败'
    };
  }
}