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import {
DataObject,
EntityNotFoundError,
FilterBuilder,
Options,
repository,
Where,
} from '@loopback/repository';
import {HttpErrors} from '@loopback/rest';
import {isNull, omit} from 'lodash';
import {BaseService} from '.';
import {RoleRightsDto} from '../dtos';
import {RoleDto} from '../dtos/role.dto';
import {
BaseResponses,
Module,
Role,
RoleRights,
RoleWithRelations,
} from '../models';
import {
FeatureAccessRepository,
FeatureRepository,
ModuleRepository,
RoleRepository,
RoleRightsRepository,
RoleViewRepository,
UserRepository,
} from '../repositories';
import { RoleView } from '@logchain/models/views';
import { exist } from 'should';
import { LogChainConfigs } from '@logchain/configs';
@bind({scope: BindingScope.TRANSIENT})
export class RoleService extends BaseService<Role> {
constructor(
@repository(RoleRepository)
public role_repo: RoleRepository,
@repository(RoleViewRepository)
public role_view_repo: RoleViewRepository,
@repository(FeatureRepository)
public feature_repo: FeatureRepository,
@repository(ModuleRepository)
public module_repo: ModuleRepository,
@repository(RoleRightsRepository)
public role_rights_repo: RoleRightsRepository,
@repository(FeatureAccessRepository)
public feature_access_repo: FeatureAccessRepository,
@repository(UserRepository)
public user_repo: UserRepository,
) {
super();
}
/**
* Create a new role
* @param role
*/
async create(
role: RoleDto,
): Promise<{id: number | undefined; identifier?: string | undefined}> {
const {role_details} = role;
if (role_details?.length) {
const feature_ids = role_details.map(detail => {
return detail.feature_id;
});
await this.feature_repo.ensureRecordActive(feature_ids);
}
const new_role = await this.role_repo.create(omit(role, ['role_details']));
// create role_details access
if (role_details?.length) {
await this._createNewRoleRights(role_details, new_role);
}
return new_role;
}
/**
* Get array roles based on filter.
* @param filter
*/
async find(options?: Options): Promise<BaseResponses<RoleView>> {
const filter_builder = new FilterBuilder<RoleView>();
filter_builder.filter = this.filter_builder.filter;
if (options?.is_private) {
// count total users for private
filter_builder.include({
relation: 'users',
scope: {
fields: {
role_id: true,
status: true,
},
},
});
} else {
// only get active roles for public
this.ensureRightAccessRecord(filter_builder);
}
return this.role_view_repo.findWithPaging(filter_builder.build());
}
/**
* Gets by id or identifier
* @param id
* @returns by id or identifier
*/
async getByIdOrIdentifier(id: string | number): Promise<Role> {
this.addWhereIdOrIdentifier(id);
// add modifier
super._addIncludeModifier(this.filter_builder);
// count total users for private
this.filter_builder.include({
relation: 'users',
scope: {
fields: {
role_id: true,
status: true,
},
},
});
this.filter_builder.include({
relation: 'role_rights',
scope: {
include: [
{
relation: 'feature',
scope: {
where: {
status: true,
},
},
},
],
},
});
// find role.
const role = await this.role_repo.findOne(this.filter_builder.build());
if (!role) {
throw new EntityNotFoundError(this.role_repo.entityClass, id);
}
return role;
}
/**
* Get all the features active
*/
async getFeatures() {
const filterBuilder = new FilterBuilder<Module>();
this.ensureRightAccessRecord();
filterBuilder.include({
relation: 'features',
});
return this.module_repo.findWithPaging(filterBuilder.build());
}
/**
* Delete role by id or identifier
* @param id The role id or identifier
*/
async deleteByIdOrIdentifier(id: number | string) {
this.addWhereIdOrIdentifier(id);
const role = await this.role_repo.findOne(this.filter_builder.build());
if (!role) {
throw new EntityNotFoundError(this.role_repo.entityClass, id);
}
if (role.status) {
throw new HttpErrors.BadRequest("Don't allow delete active role");
}
const {count: used_by_user} = await this.user_repo.count({
role_id: role.id,
});
if (used_by_user) {
throw new HttpErrors.BadRequest(
`The role ${role.id} is used by another user.`,
);
}
// delete role
await this.role_repo.deleteAll(this.filter_builder.build().where);
return role;
}
/**
* Update role by id or identifier
* @param id The id or identifier of role
* @param role The new role info
* @returns Promise<void>
*/
async updateByIdOrIdentifier(id: string | number, role: RoleDto) {
this.addWhereIdOrIdentifier(id);
const current_role = await this.role_repo.findOne(
this.filter_builder.build(),
);
const old_company_id = current_role?.company_id;
const new_company_id = role.company_id;
if (!current_role) {
throw new EntityNotFoundError(this.role_repo.entityClass, id);
}
const {role_details} = role;
if (role_details?.length) {
const feature_ids = role_details.map(detail => {
return detail.feature_id;
});
await this.feature_repo.ensureRecordActive(feature_ids);
// remove all current roles rights
await this.role_rights_repo.deleteAll({
role_id: current_role.id,
});
await this._createNewRoleRights(role_details, current_role);
}
await this.role_repo.updateById(
current_role.id,
omit(role, ['role_details']),
);
// Process the role rights when switching from public to private
if (old_company_id === 0 && new_company_id !== 0) {
// If the role is being changed to private, remove all users from current role
await this.user_repo.updateAll(
{ role_id: 0 },
{ role_id: current_role.id, company_id: { neq: new_company_id }},
);
}
return current_role;
}
/**
* Create new role rights for a given role
* @param role_details The new role rights
* @param current_role The current role
*/
private async _createNewRoleRights(
role_details: RoleRightsDto[],
current_role: RoleWithRelations,
) {
const bulk_data: DataObject<RoleRights>[] = [];
role_details.forEach(detail => {
bulk_data.push({
feature_id: detail.feature_id,
role_id: current_role.id,
allow_create: detail.create,
allow_retrieve: detail.retrieve,
allow_update: detail.update,
allow_delete: detail.delete,
allow_validate: detail.validate,
allow_override: detail.override,
});
});
return this.role_rights_repo.createAll(bulk_data);
}
/**
* Ensure get active record
* @protected
* @param filterBuilder The FilterBuilder
* @param id The id or identifier
*/
public ensureRightAccessRecord(filter_builder?: FilterBuilder): void {
const _where: Where = {
status: true,
private: false,
};
if (this.current_user.id !== LogChainConfigs.LogChainRootAdminId) {
_where.or = [
{
company_id: this.current_user?.company_id,
},
{
company_id: null,
},
{
company_id: 0,
},
];
}
if (filter_builder) {
filter_builder.impose(_where);
} else {
this.filter_builder.impose(_where);
}
}
/**
* Builds the query for role.
* @param q The query string.
*/
async buildSearchQuery(q?: string) {
if (!q) {
return;
}
const ilike_value = this.buildILikeValue(q);
// FIlTER: name Should be a LIKE search
this.filter_builder.impose({
or: [
{
name: ilike_value,
},
],
});
}
}
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