import { Inject, Provide } from '@midwayjs/decorator';
import { BaseService, ICoolCache } from '@cool-midway/core';
import { BaseSysMenuService } from './menu';
import { BaseSysRoleService } from './role';
import { BaseSysDepartmentService } from './department';
import { Context } from 'egg';

/**
 * 权限
 */
@Provide()
export class BaseSysPermsService extends BaseService {
  @Inject('cool:cache')
  coolCache: ICoolCache;

  @Inject()
  baseSysMenuService: BaseSysMenuService;

  @Inject()
  baseSysRoleService: BaseSysRoleService;

  @Inject()
  baseSysDepartmentService: BaseSysDepartmentService;

  @Inject()
  ctx: Context;

  /**
   * 刷新权限
   * @param userId 用户ID
   */
  async refreshPerms(userId) {
    const roleIds = await this.baseSysRoleService.getByUser(userId);
    const perms = await this.baseSysMenuService.getPerms(roleIds);
    await this.coolCache.set(`admin:perms:${userId}`, JSON.stringify(perms));
    // 更新部门权限
    const departments = await this.baseSysDepartmentService.getByRoleIds(
      roleIds,
      this.ctx.admin.username === 'admin'
    );
    await this.coolCache.set(
      `admin:department:${userId}`,
      JSON.stringify(departments)
    );
  }

  /**
   * 获得权限菜单
   * @param roleIds
   */
  async permmenu(roleIds: number[]) {
    const perms = await this.baseSysMenuService.getPerms(roleIds);
    const menus = await this.baseSysMenuService.getMenus(
      roleIds,
      this.ctx.admin.username === 'admin'
    );
    return { perms, menus };
  }

  /**
   * 根据用户ID获得部门权限
   * @param userId
   * @return 部门ID数组
   */
  async departmentIds(userId: number) {
    const department = await this.coolCache.get(`admin:department:${userId}`);
    if (department) {
      return JSON.parse(department);
    } else {
      return [];
    }
  }
}