Is there a way to simplify this logic?

var qtdTotal = 0.0f
            val partition = response?.partition { it.uidCaracteristica != 0 }
            val uidGroup = partition?.first?.groupBy { it.produto }?.toMutableMap() ?: mutableMapOf()
            uidGroup[0] = partition?.second ?: listOf()
            uidGroup.forEach { (key, uidsList) ->
                if (key == 0) {
                    uidsList.forEach { stk ->
                        addRow(
                            stk.description ?: "", "", "", "",
                            extraInfo = listOf(
                                stk.produto.toString(),
                                stk.description ?: "",
                                stk.codbarras ?: "",
                                stk.referencia ?: ""
                            )
                        )
                        qtdTotal += stk.stock ?: 0.0f
                    }
                } else {
                    val caracteristicas = uidsList.map {
                            ReportsDataset.Row(
                                it.caracteristica ?: "",
                                it.stkmin?.toString() ?: "",
                                it.stkmax?.toString() ?: "",
                                it.stock?.toString() ?: "",
                                extraInfo = listOf(it.uidCaracteristica?.toString() ?: "")
                            )
                        }
                    val stk = uidsList.first()
                    addRow(
                        stk.description ?: "", "", "", "",
                        extraRows = caracteristicas,
                        extraInfo = listOf(
                            stk.produto.toString(),
                            stk.description ?: "",
                            stk.codbarras ?: "",
                            stk.referencia ?: ""
                        )
                    )
                    qtdTotal += stk.stock ?: 0.0f
                }
            }

Can you give a summary of the problem you're trying to solve? That would help to understand the code.

The problem is solved with this big block of code, but it seems very repetitive.

response

is a list of products, each product with

uidCaracteristica != 0

must be organised under the same

Row

other products

uidCaracteristica == 0

must be a single

Row

Locate Duplicates is not available in my AS, is that a plugin?