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src/store/printer/getById.js

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+import { GET_BY_COMPANY_AND_ID as MSSQL_GET_BY_ID } from '../../providers/mssql/queries/printer.js';
+import { GET_BY_COMPANY_AND_ID as SQLITE_GET_BY_ID } from '../../providers/sqlite3/queries/printer.js';
+import resolveSelectedCompanyAccess from '../companyuser/resolveSelectedCompanyAccess.js';
+import makeRunner from '../runner.js';
+
+function shape(row) {
+  return {
+    id: row.id,
+    company_id: row.company_id ?? row.companyId,
+    address: row.address,
+    type: row.type,
+    model: row.model ?? null,
+    serial: row.serial ?? null,
+    sort: row.sort,
+    desc: row.desc ?? null,
+  };
+}
+
+export default function getById(provider) {
+  const access = resolveSelectedCompanyAccess(provider);
+  const sql =
+    provider?.dialect === 'sqlite3' ? SQLITE_GET_BY_ID : MSSQL_GET_BY_ID;
+
+  /**
+   * Retrieves a printer by its ID for the user's selected company.
+   *
+   * @param {number} googleAuthId - The id of the Google auth user.
+   * @param {number} id - The printer ID.
+   * @param {object} [tx] - Optional transaction to run within.
+   * @returns {Promise<{id: number, company_id: number, address: string, type: string, model: string|null, serial: string|null, sort: number, desc: string|null}|undefined>}
+   *
+   * @example
+   * const printer = await store.printer.getById(googleAuthId, 1);
+   * // => { id: 1, company_id: 1, address: '192.168.1.100', type: 'esc/pos', ... }
+   */
+  return async (googleAuthId, id, tx) => {
+    const numericId = Number(id);
+    if (!Number.isInteger(numericId) || numericId <= 0) {
+      return undefined;
+    }
+
+    const runner = makeRunner(provider, tx);
+    const { companyId } = await access(googleAuthId, runner);
+
+    const result = await runner.query(sql, {
+      id: numericId,
+      companyId,
+    });
+
+    const row = result.rows[0];
+    return row ? shape(row) : undefined;
+  };
+}