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import { v4 as uuidv4 } from 'uuid';
import gql from 'graphql-tag';
import {
DeviceUuidInputEvent,
DeviceUuidResponse,
DeviceMetricsInput,
DeviceMetricsOutput,
DeviceStatus,
DeviceSettings,
} from '../types.d';
import { DeviceType } from './deviceTypes.d';
import { DeviceMetrics } from './deviceMetrics';
import { EnvironmentService } from '../common_services/config';
import { DeviceVerification } from './deviceVerification';
import { DeviceDb } from './deviceDb';
import { DynamodbService, AppSyncClient } from '../common_services';
import { UpdateEventPublisher } from '../common_interfaces';
import { convertDbStreamToSettings } from './deviceUtils';
@Injectable()
export class DeviceService extends UpdateEventPublisher {
deviceDb: DeviceDb;
constructor(
private readonly dynamodbService: DynamodbService,
private readonly envService: EnvironmentService,
private readonly deviceMetrics: DeviceMetrics,
private readonly deviceVerify: DeviceVerification,
private readonly appsyncClient: AppSyncClient,
) {
super(appsyncClient, (deviceUuid) => this.getDeviceStatus(deviceUuid));
this.deviceDb = new DeviceDb(
this.envService.deviceTableName,
this.envService.modelSerialGsi,
this.dynamodbService.documentClient,
this.envService.accessTokenGsi,
);
}
getDeviceUuid = async (
event: DeviceUuidInputEvent,
): Promise<DeviceUuidResponse> => {
try {
console.log('device service: getDeviceUuid:', event);
const { model, serial } = event;
const response = await this.deviceDb.getDeviceByModelSerial(
model,
serial,
);
if (response.Items && response.Items.length > 0) {
const item = response.Items[0];
return Promise.resolve({
id: item.id,
model: item.model,
serial: item.serial,
});
}
console.log(`Device ${model}, ${serial} doesnt exist, create new uuid.`);
const id = uuidv4();
await this.deviceDb.saveDeviceUuid(model, serial, id);
return Promise.resolve({ id, model, serial });
} catch (err) {
console.error(err);
throw err;
}
};
getDeviceMetrics = (deviceUuid: string, type: string) => this.deviceMetrics.getDeviceMetrics(deviceUuid, type);
createDeviceMetrics = async (
input: DeviceMetricsInput,
): Promise<DeviceMetricsOutput> => this.deviceMetrics.createDeviceMetrics(input);
saveDeviceRecord = async (
deviceUuid: string,
type: DeviceType,
data: { [key: string]: any },
): Promise<void> => {
const valid = await this.deviceVerify.isDeviceUuidValid(deviceUuid);
if (!valid) {
console.error('Device uuid not found ', deviceUuid);
throw new Error(`Device uuid not found ${deviceUuid}`);
}
await this.deviceDb.updateDeviceRecord(deviceUuid, type, data);
};
saveDeviceTokens = async (
deviceUuid: string,
accessToken: string,
refreshToken: string,
idToken?: string,
): Promise<void> => {
const status = DeviceStatus.ACTIVE;
await this.saveDeviceRecord(deviceUuid, DeviceType.core, {
accessToken,
refreshToken,
idToken,
status,
});
await this.saveDeviceRecord(deviceUuid, DeviceType.settings, {
status,
});
// TODO: use a single hardcoded entityUuid fow now, it will be replaced later
const entityUuid = '1b1404d7-5c2b-4a14-bf9e-8bdc494e7234';
await this.saveDeviceRecord(deviceUuid, DeviceType.core, { entityUuid });
};
saveDevicePhone = async (
deviceUuid: string,
phone: string,
): Promise<void> => {
await this.saveDeviceRecord(deviceUuid, DeviceType.settings, { phone });
};
saveDevicePin = async (deviceUuid: string, pin: string): Promise<void> => {
await this.saveDeviceRecord(deviceUuid, DeviceType.settings, { pin });
};
saveEntity = async (
deviceUuid: string,
entityUuid: string,
): Promise<void> => {
await this.saveDeviceRecord(deviceUuid, DeviceType.core, { entityUuid });
await this.saveDeviceRecord(deviceUuid, DeviceType.settings, {
entityUuid,
});
};
saveSite = async (deviceUuid: string, siteUuid: string): Promise<void> => {
await this.saveDeviceRecord(deviceUuid, DeviceType.core, { siteUuid });
await this.saveDeviceRecord(deviceUuid, DeviceType.settings, { siteUuid });
};
getEntityUuidByAccessToken = async (accessToken: string): Promise<string> => {
const output = await this.deviceDb.getDeviceByAccessToken(accessToken);
if (typeof output.Items !== 'undefined' && output.Items.length > 0) {
const { entityUuid } = output.Items[0];
Eif (entityUuid) {
return entityUuid;
}
}
throw new Error('Invalid access token.');
};
getRefreshTokenByUuid = async (deviceUuid: string) => {
const output = await this.deviceDb.getDeviceByUuid(deviceUuid);
if (typeof output.Items !== 'undefined' && output.Items.length > 0) {
const { refreshToken } = output.Items[0];
Eif (refreshToken) {
return refreshToken;
}
}
throw new Error('getRefreshTokenByUuid: Invalid deviceUuid.');
};
deactivateDevice = async (deviceUuid: string) => {
const status = 'INACTIVE';
const accessToken = status;
const refreshToken = status;
const idToken = status;
await this.saveDeviceRecord(deviceUuid, DeviceType.settings, {
status,
});
await this.saveDeviceRecord(deviceUuid, DeviceType.core, {
status,
accessToken,
refreshToken,
idToken,
});
};
getDeviceStatus = async (deviceUuid: string): Promise<DeviceStatus> => {
const device = await this.deviceDb.getDeviceByUuid(deviceUuid);
if (device.Items && device.Items.length > 0) {
return device.Items[0].status as DeviceStatus;
}
throw new Error(`Invalid device uuid ${deviceUuid}`);
};
saveDeviceStatus = async (deviceUuid: string, status: DeviceStatus) => {
await this.saveDeviceRecord(deviceUuid, DeviceType.core, { status });
await this.saveDeviceRecord(deviceUuid, DeviceType.settings, { status });
};
updateDeviceSettings = async (deviceSettings: DeviceSettings) => {
const deviceUuid = deviceSettings.id;
const settings = { ...deviceSettings };
delete settings.id;
try {
await this.deviceDb.updateDeviceRecord(
deviceUuid,
DeviceType.settings,
settings,
);
return true;
} catch (error) {
console.error(error);
return false;
}
};
getDeviceSettings = async (deviceUuid: string) => {
const device = await this.deviceDb.getDeviceRecordByType(
deviceUuid,
DeviceType.settings,
);
Eif (device.Items && device.Items.length > 0) {
return device.Items[0] as DeviceSettings;
}
throw new Error(`Invalid device uuid ${deviceUuid}`);
};
prepareUpdateEventRequest(item: any, keys: any) {
return {
mutation: gql`
mutation PublishDeviceSettingsUpdate(
$item: DeviceSettingsInput!
) {
publishDeviceSettingsUpdateEvent(deviceSettings: $item) {
${keys}
}
}
`,
variables: {
item,
},
};
}
onDeviceSettingsStream = async (event: any): Promise<void> => {
console.info('device settings stream event:', JSON.stringify(event));
await this.publishUpdateEventToSubscribers<DeviceSettings>(
event,
convertDbStreamToSettings,
);
};
onDeviceSettingsUpdate = async (accessToken: string) => {
await this.deviceVerify.checkAccessToken(accessToken);
};
}
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