chore: import DH V2 D5.6.4 production baseline
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DH V2
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import { Injectable, NotFoundException } from '@nestjs/common';
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import { DataSource } from 'typeorm';
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import {
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AssetVersionChangeType,
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AuditSource,
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} from '../database/entities';
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import type {
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ListTemporalAssetsQueryDto,
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TemporalAtQueryDto,
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} from './dto/list-temporal-assets-query.dto';
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export interface TemporalAssetSummary {
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id: string;
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assetId: string;
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assetCode: string;
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assetName: string;
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typeId: string;
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typeName: string;
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informationStatus: string;
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operationalStatus: string;
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versionNumber: number;
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changeType: AssetVersionChangeType;
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changedFields: string[];
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occurredAt: Date;
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effectiveUntil: Date | null;
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actorUserId: string | null;
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actorUsername: string | null;
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source: AuditSource;
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requestId: string | null;
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isCurrent: boolean;
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}
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export interface TemporalAssetDetail extends TemporalAssetSummary {
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snapshot: Record<string, unknown>;
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asOf: Date;
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}
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function temporalAssetNotFound(): NotFoundException {
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return new NotFoundException({
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code: 'ASSET_NOT_EXISTING_AT_DATE',
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message: 'El activo no tenía una versión registrada en la fecha solicitada',
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});
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}
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@Injectable()
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export class AssetTemporalService {
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constructor(private readonly dataSource: DataSource) {}
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async list(query: ListTemporalAssetsQueryDto) {
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const parameters: unknown[] = [new Date(query.at)];
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const conditions: string[] = [];
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const add = (value: unknown): string => {
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parameters.push(value);
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return `$${parameters.length}`;
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};
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if (query.search?.trim()) {
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const search = add(`%${query.search.trim()}%`);
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conditions.push(`(
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version.snapshot->>'code' ILIKE ${search}
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OR version.snapshot->>'name' ILIKE ${search}
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)`);
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}
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if (query.typeId) {
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conditions.push(`version.snapshot #>> '{type,id}' = ${add(query.typeId)}`);
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}
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if (query.status) {
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conditions.push(`version.snapshot->>'informationStatus' = ${add(query.status)}`);
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}
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const where = conditions.length ? `WHERE ${conditions.join(' AND ')}` : '';
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const selected = this.selectedAt('$1');
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const [countRow] = (await this.dataSource.query(
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`WITH selected_version AS (${selected})
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SELECT COUNT(*)::integer AS total
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FROM selected_version version
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${where}`,
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parameters,
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)) as Array<{ total: number }>;
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const total = Number(countRow?.total ?? 0);
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const paginated = [
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...parameters,
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query.pageSize,
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(query.page - 1) * query.pageSize,
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];
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const limit = `$${parameters.length + 1}`;
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const offset = `$${parameters.length + 2}`;
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const data = (await this.dataSource.query(
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`WITH selected_version AS (${selected})
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${this.selectSummary()}
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FROM selected_version version
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INNER JOIN assets current_asset ON current_asset.id = version.asset_id
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LEFT JOIN LATERAL (
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SELECT candidate.occurred_at
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FROM asset_versions candidate
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WHERE candidate.asset_id = version.asset_id
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AND candidate.version_number > version.version_number
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ORDER BY candidate.version_number ASC
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LIMIT 1
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) next_version ON true
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${where}
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ORDER BY "assetName" ASC, "assetCode" ASC
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LIMIT ${limit} OFFSET ${offset}`,
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paginated,
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)) as TemporalAssetSummary[];
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return {
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data,
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asOf: new Date(query.at),
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meta: {
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page: query.page,
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pageSize: query.pageSize,
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total,
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totalPages: total === 0 ? 0 : Math.ceil(total / query.pageSize),
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},
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};
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}
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async get(assetId: string, query: TemporalAtQueryDto): Promise<TemporalAssetDetail> {
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const [row] = (await this.dataSource.query(
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`${this.selectSummary()}, version.snapshot
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FROM asset_versions version
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INNER JOIN assets current_asset ON current_asset.id = version.asset_id
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LEFT JOIN LATERAL (
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SELECT candidate.occurred_at
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FROM asset_versions candidate
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WHERE candidate.asset_id = version.asset_id
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AND candidate.version_number > version.version_number
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ORDER BY candidate.version_number ASC
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LIMIT 1
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) next_version ON true
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WHERE version.asset_id = $1
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AND version.occurred_at <= $2
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ORDER BY version.occurred_at DESC, version.version_number DESC
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LIMIT 1`,
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[assetId, new Date(query.at)],
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)) as TemporalAssetDetail[];
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if (!row) throw temporalAssetNotFound();
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const asOf = new Date(query.at);
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row.asOf = asOf;
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const [context] = (await this.dataSource.query(`
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SELECT
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CASE WHEN parent.id IS NULL THEN NULL ELSE JSONB_BUILD_OBJECT('id',parent.id,'code',parent.code,'name',parent.name) END AS parent,
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CASE WHEN area.id IS NULL THEN NULL ELSE JSONB_BUILD_OBJECT('id',area.id,'code',area.code,'name',area.name) END AS "operationalArea",
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CASE WHEN company.id IS NULL THEN NULL ELSE JSONB_BUILD_OBJECT('id',company.id,'code',company.code,'name',company.name) END AS "operatorCompany"
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FROM asset_context_history history
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LEFT JOIN assets parent ON parent.id=history.parent_id
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LEFT JOIN assets area ON area.id=history.operational_area_id
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LEFT JOIN assets company ON company.id=history.operator_company_id
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WHERE history.asset_id=$1
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AND history.valid_from <= $2
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AND (history.valid_until IS NULL OR history.valid_until > $2)
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ORDER BY history.valid_from DESC
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LIMIT 1
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`, [assetId, asOf])) as Array<{ parent: Record<string, unknown> | null; operationalArea: Record<string, unknown> | null; operatorCompany: Record<string, unknown> | null }>;
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if (context && row.snapshot) {
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row.snapshot = {
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...row.snapshot,
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parent: context.parent,
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operationalArea: context.operationalArea,
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operatorCompany: context.operatorCompany,
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};
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}
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return row;
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}
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private selectedAt(atParameter: string): string {
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return `SELECT DISTINCT ON (candidate.asset_id) candidate.*
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FROM asset_versions candidate
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WHERE candidate.occurred_at <= ${atParameter}
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ORDER BY candidate.asset_id, candidate.occurred_at DESC, candidate.version_number DESC`;
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}
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private selectSummary(): string {
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return `SELECT
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version.id,
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version.asset_id AS "assetId",
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version.snapshot->>'code' AS "assetCode",
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version.snapshot->>'name' AS "assetName",
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version.snapshot #>> '{type,id}' AS "typeId",
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version.snapshot #>> '{type,name}' AS "typeName",
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version.snapshot->>'informationStatus' AS "informationStatus",
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version.snapshot->>'operationalStatus' AS "operationalStatus",
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version.version_number AS "versionNumber",
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version.change_type AS "changeType",
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version.changed_fields AS "changedFields",
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version.occurred_at AS "occurredAt",
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next_version.occurred_at AS "effectiveUntil",
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version.actor_user_id AS "actorUserId",
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version.actor_username AS "actorUsername",
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version.source,
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version.request_id AS "requestId",
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(version.version_number = current_asset.current_version) AS "isCurrent"`;
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}
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}
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