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import { inject, intercept, MixinTarget, service } from '@loopback/core';
import { Model, Options, Where } from '@loopback/repository';
import {
del, get, getWhereSchemaFor, param, patch, post, Request, requestBody, RestBindings,
} from '@loopback/rest';
import { SecurityBindings } from '@loopback/security';
import { cloneDeep, merge } from 'lodash';
import {
buildResponseObject, buildResponseObjectById, getModelSchemaRefWithoutAutoPopulate, limitSpec, offsetSpec, qSpec, sortSpec,
} from '@logchain/apidefs';
import { UserProfile } from '@logchain/components/aws';
import { Module, Constants, CONTENT_TYPE } from '@logchain/configs';
import { EnsurePagingCorrectInterceptor, EnsureProvideDataInterceptor, serialize, } from '@logchain/interceptors';
import { BaseEntity, BaseResponses } from '@logchain/models';
import { AuditLogService, BaseService } from '@logchain/services';
import { AnyObject, StringFormat } from '@logchain/types';
import {
ICreate, IRead, IReadById, IUpdateById, IDeleteId, IReadByIdentifier, IUpdateByIdentifier, IDeleteByIdentifier
} from '@logchain/mixins';
/**
* Options to mix in controller
*/
export interface MixinOptions {
/**
* Base path for the controller
*/
basePath: string;
/**
* Model class for CRUD
*/
modelClass: typeof Model;
/**
* Model DTO class for CRUD
*/
modelDtoClass: typeof Model;
/**
* private or public api
*/
admin?: boolean;
/**
* Excludes fields for `requestBody`
*/
schemaOptions: {
[property: string]: Options;
};
}
export interface ExtendOptions {
isExtendCreate?: boolean;
isExtendRead?: boolean;
isExtendReadById?: boolean;
isExtendUpdateById?: boolean;
isExtendDeleteById?: boolean;
isExtendReadByIdentifier?: boolean;
isExtendUpdateByIdentifier?: boolean;
isExtendDeleteByIdentifier?: boolean;
}
/**
* Default acls for CRUD
*/
const DEFAULT_ACL = {
schemaOptions: {
create: {
authorize: {
resource: Module.Public,
},
},
updateById: {
authorize: {
resource: Module.Public,
},
},
updateByIdentifier: {
authorize: {
resource: Module.Public,
},
},
deleteById: {
authorize: {
resource: Module.Public,
},
},
findById: {
authorize: {
resource: Module.Public,
},
},
find: {
authorize: {
resource: Module.Public,
},
},
},
};
/**
* Base controller
*/
export class BaseController {
public readonly is_private: boolean;
public readonly is_default_flow: boolean;
@service()
public log_service: AuditLogService;
@inject(RestBindings.Http.REQUEST)
public req: Request;
@inject(SecurityBindings.USER, { optional: true })
public current_user: UserProfile;
constructor() {
this.is_private = this.constructor.name.indexOf(Constants.ApiRealm.Private) > -1;
this.is_default_flow = this.constructor.name.indexOf('Default') > -1;
}
/**
* Write log function
* @param model_class
* @param entity_id
* @param data
*/
public writeLog(
model_class: typeof Model,
entity_id?: number | string,
// eslint-disable-next-line @typescript-eslint/no-explicit-any
data?: any,
template?: StringFormat,
action = '',
resource_name = '',
) {
action = this._convertMethodToAction(action || this.req.method);
// eslint-disable-next-line @typescript-eslint/no-misused-promises
setImmediate(async () => {
let name = '';
if (data) {
if (Object.prototype.hasOwnProperty.call(data, 'name')) {
name = data.name;
}
// for case is bol
if (Object.prototype.hasOwnProperty.call(data, 'bol_no')) {
name = data.bol_no;
}
// for case is weighbridges
if (Object.prototype.hasOwnProperty.call(data, 'ticket_no')) {
name = data.ticket_no;
}
}
await this.log_service.writeActivity({
action,
model_class,
resource_name: resource_name ? resource_name : model_class.modelName,
entity_id,
template: template ?? {
str: '{2}',
args: [name],
},
});
});
}
/**
* Convert http method to action
* @param method Then http method
*/
private _convertMethodToAction(method: string): string {
switch (method) {
case 'POST':
return 'Create';
case 'DELETE':
return 'Delete';
case 'PATCH':
case 'PUT':
return 'Update';
default:
return method;
}
}
}
/**
* A mixin factory for controllers to extend Create
* @param superClass - Base class
* @param options - Options for the controller
*
* @typeParam M - Model class
* @typeParam T - Base class
*/
function createCtlMixin<M extends BaseEntity, T extends MixinTarget<BaseController>>(superClass: T, options: Options) {
options = merge(cloneDeep(DEFAULT_ACL), options);
class BaseCreateController extends superClass implements ICreate<M> {
// Value will be provided by the subclassed controller class
selfService: BaseService<M>;
/**
* Create a new model instance
* @param model The info to create
* @returns The ID of new instance
*/
@post(`${options.basePath}`, {
responses: {
'200': {
description: `The ID of new ${options.modelClass.modelName}`,
content: {
[CONTENT_TYPE.JSON]: {
schema: {
type: 'object',
properties: {
id: { type: 'number' },
},
},
},
},
},
},
})
@authorize(options.schemaOptions['create'].authorize)
async create(
@requestBody({
content: {
[CONTENT_TYPE.JSON]: {
schema: options.schemaOptions['create'].jsonSchema || getModelSchemaRefWithoutAutoPopulate(
options.modelDtoClass,
{
title:
options.schemaOptions['create']?.title ||
`New${options.modelClass.modelName}`,
exclude: options.schemaOptions['create']?.exclude,
},
),
},
},
})
model: Pick<M, Exclude<keyof M, 'id'>>,
): Promise<{ id: number | undefined; identifier?: string | undefined }> {
const created_inst = await this.selfService.create(model, {
is_default_flow: this.is_default_flow,
});
const { id, identifier, activity } = created_inst;
const action = activity?.args?.length ? activity.args[0] as string : undefined;
this.writeLog(options.modelClass, id, model, activity, action);
return options?.admin ? created_inst : { id, identifier };
}
}
return BaseCreateController;
}
/**
* A mixin factory for controllers to extend Read
* @param superClass - Base class
* @param options - Options for the controller
*
* @typeParam M - Model class
* @typeParam T - Base class
*/
function readCtlMixin<M extends BaseEntity, T extends MixinTarget<BaseController>>(superClass: T, options: Options) {
options = merge(cloneDeep(DEFAULT_ACL), options);
class BaseReadController extends superClass implements IRead<M> {
// Value will be provided by the subclassed controller class
selfService: BaseService<M>;
/**
* Find list of `modelClass` based on query
* @param offset The offset number
* @param limit The limit number
* @param sort The array order
* @param where The query object
*/
@get(`${options.basePath}`, {
responses: {
'200': buildResponseObject(options.modelDtoClass, options.admin),
},
})
@intercept(EnsurePagingCorrectInterceptor.BINDING_KEY)
@authorize(options.schemaOptions['find'].authorize)
@intercept(serialize(options.modelDtoClass))
async find(
@param(offsetSpec) offset: number,
@param(limitSpec) limit: number,
@param(sortSpec) sort: Array<string>,
@param(qSpec) q: string,
@param.query.object('where', getWhereSchemaFor(options.modelClass))
where: Where<M>,
): Promise<BaseResponses<M>> {
this.selfService.buildBaseFilter(offset, limit, sort, where);
await this.selfService.buildSearchQuery(q);
if (!this.is_private) {
this.selfService.ensureRightAccessRecord();
}
return this.selfService.find({ is_private: this.is_private });
}
}
return BaseReadController;
}
/**
* A mixin factory for controllers to extend RUD by ID
* @param superClass - Base class
* @param options - Options for the controller
*
* @typeParam M - Model class
* @typeParam T - Base class
*/
function readByIdCtlMixin<M extends BaseEntity, T extends MixinTarget<BaseController>>(superClass: T, options: Options) {
options = merge(cloneDeep(DEFAULT_ACL), options);
class BaseReadByIdController extends superClass implements IReadById<M> {
// Value will be provided by the subclassed controller class
selfService: BaseService<M>;
@service()
public log_service: AuditLogService;
/**
* Get model instance by id
* @param id The ID of model
* @returns Model instance
*/
@get(`/${options.basePath}/{id}`, {
responses: {
'200': {
description: `${options.modelClass.modelName} model instance`,
content: {
[CONTENT_TYPE.JSON]: {
schema: buildResponseObjectById(
options.modelDtoClass,
options.admin,
),
},
},
},
},
})
@authorize(options.schemaOptions['findById'].authorize)
@intercept(serialize(options.modelDtoClass))
async findById(
@param.path.integer('id') id: number,
): Promise<M | AnyObject> {
if (!this.is_private) {
this.selfService.ensureRightAccessRecord();
}
return this.selfService.getByIdOrIdentifier(id, {
is_private: this.is_private,
});
}
}
return BaseReadByIdController;
}
/**
* A mixin factory for controllers to extend RUD by ID
* @param superClass - Base class
* @param options - Options for the controller
*
* @typeParam M - Model class
* @typeParam T - Base class
*/
function updateByIdCtlMixin<M extends BaseEntity, T extends MixinTarget<BaseController>>(superClass: T, options: Options) {
options = merge(cloneDeep(DEFAULT_ACL), options);
class BaseUpdateByIdController
extends superClass
implements IUpdateById<M> {
// Value will be provided by the subclassed controller class
selfService: BaseService<M>;
@service()
public log_service: AuditLogService;
/**
* Update model instance by id
* @param id The ID of model
* @param model The new information of model
* @returns Promise<void>
*/
@patch(`/${options.basePath}/{id}`, {
responses: {
'204': {
description: `${options.modelClass.modelName} PATCH success`,
},
},
})
@intercept(EnsureProvideDataInterceptor.BINDING_KEY)
@authorize(options.schemaOptions['updateById'].authorize)
async updateById(
@param.path.integer('id') id: number,
@requestBody({
content: {
[CONTENT_TYPE.JSON]: {
schema: options.schemaOptions['updateById'].jsonSchema || getModelSchemaRefWithoutAutoPopulate(
options.modelDtoClass,
{
partial: true,
exclude: options.schemaOptions['updateById'].exclude,
},
),
},
},
})
model: Partial<M>,
): Promise<void> {
if (!this.is_private) {
this.selfService.ensureRightAccessRecord();
}
const updated_inst = await this.selfService.updateByIdOrIdentifier(
id,
model,
{ is_private: this.is_private },
);
this.writeLog(
options.modelClass,
id,
updated_inst,
updated_inst?.activity,
updated_inst?.activity ? updated_inst.activity.args[0] as string : undefined,
);
}
}
return BaseUpdateByIdController;
}
/**
* A mixin factory for controllers to extend RUD by ID
* @param superClass - Base class
* @param options - Options for the controller
*
* @typeParam M - Model class
* @typeParam T - Base class
*/
function deleteByIdCtlMixin<M extends BaseEntity, T extends MixinTarget<BaseController>>(superClass: T, options: Options) {
options = merge(cloneDeep(DEFAULT_ACL), options);
class BaseDeleteByIdController extends superClass implements IDeleteId {
// Value will be provided by the subclassed controller class
selfService: BaseService<M>;
@service()
public log_service: AuditLogService;
/**
* Delete model instance by id
* @param id The model id
* @returns Promise<void>
*/
@del(`/${options.basePath}/{id}`, {
responses: {
'204': {
description: `${options.modelClass.modelName} DELETE success`,
},
},
})
@authorize(options.schemaOptions['deleteById'].authorize)
async deleteById(@param.path.integer('id') id: number): Promise<void> {
if (!this.is_private) {
this.selfService.ensureRightAccessRecord();
}
const deleted_inst = await this.selfService.deleteByIdOrIdentifier(id, {
is_private: this.is_private,
});
this.writeLog(
options.modelClass,
id,
deleted_inst,
deleted_inst.activity,
deleted_inst?.activity ? deleted_inst.activity.args[0] as string : undefined,
);
}
}
return BaseDeleteByIdController;
}
/**
* A mixin factory for controllers to extend RUD by Identifier
* @param superClass - Base class
* @param options - Options for the controller
* @typeParam M - Model class
* @typeParam T - Base class
*/
function readByIdentifierCtlMixin<M extends BaseEntity, T extends MixinTarget<BaseController>>(superClass: T, options: Options) {
options = merge(cloneDeep(DEFAULT_ACL), options);
class BaseReadByIdentifierController extends superClass implements IReadByIdentifier<M> {
// Value will be provided by the subclassed controller class
selfService: BaseService<M>;
@service()
public log_service: AuditLogService;
/**
* Get model instance by identifier
* @param identifier The identifier of model
* @returns Model instance
*/
@get(`/${options.basePath}/{identifier}`, {
responses: {
'200': {
description: `${options.modelClass.modelName} model instance`,
content: {
[CONTENT_TYPE.JSON]: {
schema: buildResponseObjectById(
options.modelDtoClass,
options.admin,
),
},
},
},
},
})
@intercept(serialize(options.modelDtoClass))
findByIdentifier(
@param.path.string('identifier') identifier: string,
): Promise<M | AnyObject> {
if (!this.is_private) {
this.selfService.ensureRightAccessRecord();
}
return this.selfService.getByIdOrIdentifier(identifier, {
is_private: this.is_private,
});
}
}
return BaseReadByIdentifierController;
}
/**
* A mixin factory for controllers to extend RUD by Identifier
* @param superClass - Base class
* @param options - Options for the controller
* @typeParam M - Model class
* @typeParam T - Base class
*/
function updateByIdentifierCtlMixin<M extends BaseEntity, T extends MixinTarget<BaseController>>(superClass: T, options: Options) {
options = merge(cloneDeep(DEFAULT_ACL), options);
class BaseUpdateByIdentifierController extends superClass implements IUpdateByIdentifier<M> {
// Value will be provided by the subclassed controller class
selfService: BaseService<M>;
@service()
public log_service: AuditLogService;
/**
* Update model by identifier.
* @param identifier The identifier of model
* @param model The new information
* @returns Promise<void>
*/
@patch(`/${options.basePath}/{identifier}`, {
responses: {
'204': {
description: `${options.modelClass.modelName} PATCH success`,
},
},
})
@intercept(EnsureProvideDataInterceptor.BINDING_KEY)
async updateByIdentifier(
@param.path.string('identifier') identifier: string,
@requestBody({
content: {
[CONTENT_TYPE.JSON]: {
schema: getModelSchemaRefWithoutAutoPopulate(options.modelClass, {
partial: true,
exclude: options.schemaOptions['updateByIdentifier'].exclude,
}),
},
},
})
model: M,
): Promise<void> {
if (!this.is_private) {
this.selfService.ensureRightAccessRecord();
}
const updated_inst = await this.selfService.updateByIdOrIdentifier(
identifier,
model,
{ is_private: this.is_private },
);
this.writeLog(
options.modelClass,
updated_inst?.id,
updated_inst,
updated_inst?.activity,
updated_inst?.activity ? updated_inst.activity.args[0] as string : undefined,
);
}
}
return BaseUpdateByIdentifierController;
}
/**
* A mixin factory for controllers to extend RUD by Identifier
* @param superClass - Base class
* @param options - Options for the controller
* @typeParam M - Model class
* @typeParam T - Base class
*/
function deleteByIdentifierCtlMixin<M extends BaseEntity, T extends MixinTarget<BaseController>>(superClass: T, options: Options) {
options = merge(cloneDeep(DEFAULT_ACL), options);
class BaseDeleteByIdentifierController extends superClass implements IDeleteByIdentifier {
// Value will be provided by the subclassed controller class
selfService: BaseService<M>;
@service()
public log_service: AuditLogService;
/**
* Delete model instance by identifier
* @param identifier The identifier of model
* @returns Promise<void>
*/
@del(`/${options.basePath}/{identifier}`, {
responses: {
'204': {
description: `${options.modelClass.modelName} DELETE success`,
},
},
})
async deleteByIdentifier(
@param.path.string('identifier') identifier: string,
): Promise<void> {
if (!this.is_private) {
this.selfService.ensureRightAccessRecord();
}
const deleted_inst = await this.selfService.deleteByIdOrIdentifier(
identifier,
{ is_private: this.is_private },
);
this.writeLog(
options.modelClass,
deleted_inst.id,
deleted_inst,
deleted_inst?.activity,
deleted_inst?.activity ? deleted_inst.activity.args[0] as string : undefined,
);
}
}
return BaseDeleteByIdentifierController;
}
export function createBaseControllerFactory<M extends BaseEntity, T extends MixinTarget<BaseController>>(superClass: T, options: Options, extendOptions: ExtendOptions) {
let finalClass = superClass;
// Refactor to reduce cognitive complexity
const extendFunctions: any = {
isExtendCreate: createCtlMixin,
isExtendRead: readCtlMixin,
isExtendReadById: readByIdCtlMixin,
isExtendUpdateById: updateByIdCtlMixin,
isExtendDeleteById: deleteByIdCtlMixin,
isExtendReadByIdentifier: readByIdentifierCtlMixin,
isExtendUpdateByIdentifier: updateByIdentifierCtlMixin,
isExtendDeleteByIdentifier: deleteByIdentifierCtlMixin,
};
for (const [key, value] of Object.entries(extendOptions)) {
Eif (value) {
finalClass = (extendFunctions[key] as (superClass: T, options: Options) => T)(finalClass, options);
}
}
return finalClass;
}
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