Balanço Patrimonial

{
  "companies": [
    {
      "company_name": "ACME LTDA",
      "company_document": "12.345.678/0001-90",
      "statement_type": "individual",
      "periods": [
        {
          "reference_date": "2024-12-31",
          "assets": {
            "description": "ATIVO",
            "value": 1000000,
            "code": "1",
            "children": [
              {
                "description": "ATIVO CIRCULANTE",
                "value": 600000,
                "code": "1.1",
                "children": [
                  {
                    "description": "Caixa",
                    "value": 50000,
                    "code": "1.1.1.01"
                  },
                  {
                    "description": "Bancos",
                    "value": 550000,
                    "code": "1.1.1.02"
                  }
                ]
              },
              {
                "description": "ATIVO NÃO CIRCULANTE",
                "value": 400000,
                "code": "1.2",
                "children": [
                  {
                    "description": "Veículos",
                    "value": 500000,
                    "code": "1.2.3.04"
                  },
                  {
                    "description": "(-) Depreciação",
                    "value": -100000,
                    "code": "1.2.3.06"
                  }
                ]
              }
            ]
          },
          "liabilities": {
            "description": "PASSIVO",
            "value": 600000,
            "code": "2.1",
            "children": [
              {
                "description": "Fornecedores",
                "value": 400000,
                "code": "2.1.2.01"
              },
              {
                "description": "Empréstimos",
                "value": 200000,
                "code": "2.1.3.01"
              }
            ]
          },
          "equity": {
            "description": "PATRIMÔNIO LÍQUIDO",
            "value": 400000,
            "code": "2.3",
            "children": [
              {
                "description": "Capital Social",
                "value": 300000,
                "code": "2.3.1.01"
              },
              {
                "description": "Lucros Acumulados",
                "value": 100000,
                "code": "2.3.3.01"
              }
            ]
          }
        }
      ]
    }
  ]
}

const balanceSheet = await response.json();

// Percorrer árvore
function walk(node, depth = 0) {
  const note = node.note ? ` (Nota ${node.note})` : "";
  console.log("  ".repeat(depth) + node.description + ": " + node.value + note);
  (node.children || []).forEach((c) => walk(c, depth + 1));
}

// Listar contas
balanceSheet.companies.forEach((company) => {
  const type = company.statement_type || "individual";
  console.log(`${company.company_name} (${type})`);
  company.periods.forEach((period) => {
    console.log(`  Data: ${period.reference_date}`);
    walk(period.assets, 2);
  });
});

// Buscar por código
function findByCode(node, code) {
  if (node.code === code) return node;
  for (const child of node.children || []) {
    const found = findByCode(child, code);
    if (found) return found;
  }
  return null;
}

const caixa = findByCode(
  balanceSheet.companies[0].periods[0].assets,
  "1.1.1.01"
);