feat(transactions): edição cooperativa e visibilidade de divisões

Adiciona splitGroupId para vincular as duas shares de um lançamento
dividido (schema + índice + migration 0026). Habilita:

- Edição de par dividido com escolha de escopo (apenas este lado ou
  ambos) via novo SplitPairDialog e updateTransactionSplitPairAction
- Filtro "Somente divididos" (isDivided) na tabela de lançamentos
- Visibilidade de anexos para pessoas com acesso compartilhado via
  payerShares; upload e detach em massa expandem para shares irmãs
- Cópia independente de anexos no fluxo "Importar para Minha Conta"
  (novo fileKey, novo userId, S3 CopyObject) com seção read-only
  "Anexos que serão copiados" no dialog de importação
- Ícone de clipe na tabela de lançamentos da página da pessoa via
  EXISTS em fetchPagadorLancamentos

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

drizzle/0026_bored_eternity.sql

@@ -0,0 +1,2 @@
+ALTER TABLE "lancamentos" ADD COLUMN "split_group_id" uuid;--> statement-breakpoint
+CREATE INDEX "lancamentos_user_id_split_group_id_idx" ON "lancamentos" USING btree ("user_id","split_group_id");

drizzle/meta/_journal.json

@@ -183,6 +183,13 @@
 			"when": 1776351838548,
 			"tag": "0025_burly_colonel_america",
 			"breakpoints": true
+		},
+		{
+			"idx": 26,
+			"version": "7",
+			"when": 1777042423451,
+			"tag": "0026_bored_eternity",
+			"breakpoints": true
 		}
 	]
 }

src/db/schema.ts

@@ -670,6 +670,7 @@ export const transactions = pgTable(
 			onUpdate: "cascade",
 		}),
 		seriesId: uuid("series_id"),
+		splitGroupId: uuid("split_group_id"),
 		transferId: uuid("transfer_id"),
 		ofxFitId: text("ofx_fit_id"),
 		importBatchId: text("import_batch_id"),
@@ -702,6 +703,11 @@ export const transactions = pgTable(
 		),
 		// Índice para buscar parcelas de uma série
 		seriesIdIdx: index("lancamentos_series_id_idx").on(table.seriesId),
+		// Índice para buscar shares de um split (userId + splitGroupId)
+		userIdSplitGroupIdIdx: index("lancamentos_user_id_split_group_id_idx").on(
+			table.userId,
+			table.splitGroupId,
+		),
 		// Índice para buscar transferências relacionadas
 		transferIdIdx: index("lancamentos_transfer_id_idx").on(table.transferId),
 		// Índice para filtrar por condição (aberto, realizado, cancelado)

src/features/payers/detail-queries.ts

@@ -1,10 +1,11 @@
-import { and, desc, eq, type SQL } from "drizzle-orm";
+import { and, desc, eq, type SQL, sql } from "drizzle-orm";
 import {
 	cards,
 	categories,
 	financialAccounts,
 	payerShares,
 	payers,
+	transactionAttachments,
 	transactions,
 	user as usersTable,
 } from "@/db/schema";
@@ -73,6 +74,10 @@ export async function fetchPagadorLancamentos(filters: SQL[]) {
 			financialAccount: financialAccounts,
 			card: cards,
 			category: categories,
+			hasAttachments: sql<boolean>`EXISTS (
+				SELECT 1 FROM ${transactionAttachments}
+				WHERE ${transactionAttachments.transactionId} = ${transactions.id}
+			)`,
 		})
 		.from(transactions)
 		.leftJoin(payers, eq(transactions.payerId, payers.id))
@@ -85,12 +90,12 @@ export async function fetchPagadorLancamentos(filters: SQL[]) {
 		.where(and(...filters))
 		.orderBy(desc(transactions.purchaseDate), desc(transactions.createdAt));
 
-	// Transformar resultado para o formato esperado
 	return transactionRows.map((row) => ({
 		...row.transaction,
 		payer: row.payer,
 		financialAccount: row.financialAccount,
 		card: row.card,
 		category: row.category,
+		hasAttachments: row.hasAttachments,
 	}));
 }

src/features/transactions/actions.ts

@@ -12,6 +12,7 @@ import {
 	deleteTransactionAction as deleteTransactionActionImpl,
 	toggleTransactionSettlementAction as toggleTransactionSettlementActionImpl,
 	updateTransactionAction as updateTransactionActionImpl,
+	updateTransactionSplitPairAction as updateTransactionSplitPairActionImpl,
 } from "./actions/single-actions";
 
 export async function createTransactionAction(
@@ -62,6 +63,12 @@ export async function deleteMultipleTransactionsAction(
 	return deleteMultipleTransactionsActionImpl(...args);
 }
 
+export async function updateTransactionSplitPairAction(
+	...args: Parameters<typeof updateTransactionSplitPairActionImpl>
+): ReturnType<typeof updateTransactionSplitPairActionImpl> {
+	return updateTransactionSplitPairActionImpl(...args);
+}
+
 export async function exportTransactionsDataAction(
 	...args: Parameters<typeof exportTransactionsDataActionImpl>
 ): ReturnType<typeof exportTransactionsDataActionImpl> {

src/features/transactions/actions/attachments.ts

@@ -1,7 +1,7 @@
 "use server";
 
 import crypto, { randomUUID } from "node:crypto";
-import { and, count, eq, inArray } from "drizzle-orm";
+import { and, count, eq, inArray, isNotNull } from "drizzle-orm";
 import { z } from "zod/v4";
 import { attachments, transactionAttachments, transactions } from "@/db/schema";
 import {
@@ -15,7 +15,6 @@ import {
 import { getUser } from "@/shared/lib/auth/server";
 import { db } from "@/shared/lib/db";
 import {
-	createPresignedGetUrl,
 	createPresignedPutUrl,
 	deleteS3Object,
 	headS3Object,
@@ -98,6 +97,46 @@ function signUploadToken(payload: UploadTokenPayload): string {
 	return `${encodedPayload}.${signature}`;
 }
 
+async function expandSplitSiblings(
+	transactionIds: string[],
+	userId: string,
+): Promise<string[]> {
+	if (transactionIds.length === 0) return transactionIds;
+
+	const groupRows = await db
+		.select({ splitGroupId: transactions.splitGroupId })
+		.from(transactions)
+		.where(
+			and(
+				inArray(transactions.id, transactionIds),
+				eq(transactions.userId, userId),
+				isNotNull(transactions.splitGroupId),
+			),
+		);
+
+	const splitGroupIds = [
+		...new Set(
+			groupRows
+				.map((r) => r.splitGroupId)
+				.filter((v): v is string => v !== null),
+		),
+	];
+
+	if (splitGroupIds.length === 0) return transactionIds;
+
+	const siblingRows = await db
+		.select({ id: transactions.id })
+		.from(transactions)
+		.where(
+			and(
+				inArray(transactions.splitGroupId, splitGroupIds),
+				eq(transactions.userId, userId),
+			),
+		);
+
+	return [...new Set([...transactionIds, ...siblingRows.map((r) => r.id)])];
+}
+
 function verifyUploadToken(token: string): UploadTokenPayload | null {
 	try {
 		const [encodedPayload, signature] = token.split(".");
@@ -281,6 +320,8 @@ export async function confirmAttachmentUploadAction(input: {
 			}
 		}
 
+		transactionIds = await expandSplitSiblings(transactionIds, user.id);
+
 		await db.insert(transactionAttachments).values(
 			transactionIds.map((tid) => ({
 				transactionId: tid,
@@ -359,69 +400,6 @@ export async function detachTransactionAttachmentAction(input: {
 	}
 }
 
-export async function fetchTransactionAttachmentsAction(
-	transactionId: string,
-): Promise<
-	Array<{
-		attachmentId: string;
-		fileName: string;
-		fileSize: number;
-		mimeType: string;
-		createdAt: Date;
-		url: string;
-	}>
-> {
-	const user = await getUser();
-
-	const [transaction] = await db
-		.select({ id: transactions.id })
-		.from(transactions)
-		.where(
-			and(eq(transactions.id, transactionId), eq(transactions.userId, user.id)),
-		);
-
-	if (!transaction) {
-		return [];
-	}
-
-	const rows = await db
-		.select({
-			attachmentId: transactionAttachments.attachmentId,
-			fileName: attachments.fileName,
-			fileSize: attachments.fileSize,
-			mimeType: attachments.mimeType,
-			fileKey: attachments.fileKey,
-			createdAt: attachments.createdAt,
-		})
-		.from(transactionAttachments)
-		.innerJoin(
-			transactions,
-			and(
-				eq(transactionAttachments.transactionId, transactions.id),
-				eq(transactions.userId, user.id),
-			),
-		)
-		.innerJoin(
-			attachments,
-			and(
-				eq(transactionAttachments.attachmentId, attachments.id),
-				eq(attachments.userId, user.id),
-			),
-		)
-		.where(eq(transactionAttachments.transactionId, transactionId));
-
-	return Promise.all(
-		rows.map(async (row) => ({
-			attachmentId: row.attachmentId,
-			fileName: row.fileName,
-			fileSize: row.fileSize,
-			mimeType: row.mimeType,
-			createdAt: row.createdAt,
-			url: await createPresignedGetUrl(row.fileKey),
-		})),
-	);
-}
-
 const detachBulkSchema = z.object({
 	attachmentId: z.string().uuid(),
 	transactionId: z.string().uuid(),
@@ -497,6 +475,11 @@ export async function detachAttachmentBulkAction(input: {
 			}
 		}
 
+		targetTransactionIds = await expandSplitSiblings(
+			targetTransactionIds,
+			user.id,
+		);
+
 		if (targetTransactionIds.length > 0) {
 			await db
 				.delete(transactionAttachments)

src/features/transactions/actions/core.ts

@@ -1,3 +1,4 @@
+import { randomUUID } from "node:crypto";
 import { and, eq, inArray } from "drizzle-orm";
 import { z } from "zod";
 import {
@@ -394,7 +395,11 @@ const refineLancamento = (
 	}
 };
 
-export const createSchema = baseFields.superRefine(refineLancamento);
+export const createSchema = baseFields
+	.extend({
+		importFromTransactionId: uuidSchema("Lançamento fonte").optional(),
+	})
+	.superRefine(refineLancamento);
 export const updateSchema = baseFields
 	.extend({
 		id: uuidSchema("Lançamento"),
@@ -544,6 +549,7 @@ export const buildLancamentoRecords = ({
 	seriesId,
 }: BuildTransactionRecordsParams): TransactionInsert[] => {
 	const records: TransactionInsert[] = [];
+	const isSplit = (data.isSplit ?? false) && shares.length > 1;
 
 	const basePayload = {
 		name: data.name,
@@ -562,6 +568,8 @@ export const buildLancamentoRecords = ({
 		seriesId,
 	};
 
+	const cycleSplitGroupId = () => (isSplit ? randomUUID() : null);
+
 	const resolveSettledValue = (cycleIndex: number) => {
 		if (shouldNullifySettled) {
 			return null;
@@ -588,6 +596,7 @@ export const buildLancamentoRecords = ({
 			const installmentDueDate = dueDate
 				? addMonthsToDate(dueDate, installment)
 				: null;
+			const splitGroupId = cycleSplitGroupId();
 
 			shares.forEach((share, shareIndex) => {
 				const amountCents = amountsByShare[shareIndex]?.[installment] ?? 0;
@@ -603,6 +612,7 @@ export const buildLancamentoRecords = ({
 					currentInstallment: installment + 1,
 					recurrenceCount: null,
 					dueDate: installmentDueDate,
+					splitGroupId,
 					boletoPaymentDate:
 						data.paymentMethod === "Boleto" && settled
 							? boletoPaymentDate
@@ -623,6 +633,7 @@ export const buildLancamentoRecords = ({
 			const recurrenceDueDate = dueDate
 				? addMonthsToDate(dueDate, index)
 				: null;
+			const splitGroupId = cycleSplitGroupId();
 
 			shares.forEach((share) => {
 				const settled = resolveSettledValue(index);
@@ -635,6 +646,7 @@ export const buildLancamentoRecords = ({
 					isSettled: settled,
 					recurrenceCount: recurrenceTotal,
 					dueDate: recurrenceDueDate,
+					splitGroupId,
 					boletoPaymentDate:
 						data.paymentMethod === "Boleto" && settled
 							? boletoPaymentDate
@@ -646,6 +658,8 @@ export const buildLancamentoRecords = ({
 		return records;
 	}
 
+	const splitGroupId = cycleSplitGroupId();
+
 	shares.forEach((share) => {
 		const settled = resolveSettledValue(0);
 		records.push({
@@ -656,6 +670,7 @@ export const buildLancamentoRecords = ({
 			period,
 			isSettled: settled,
 			dueDate,
+			splitGroupId,
 			boletoPaymentDate:
 				data.paymentMethod === "Boleto" && settled ? boletoPaymentDate : null,
 		});

src/features/transactions/actions/export-actions.ts

@@ -33,6 +33,7 @@ const exportTransactionsSchema: z.ZodType<TransactionsExportContext> = z.object(
 			searchFilter: z.string().nullable(),
 			settledFilter: z.string().nullable(),
 			attachmentFilter: z.string().nullable(),
+			dividedFilter: z.string().nullable(),
 		}),
 		accountId: z.string().min(1).nullable().optional(),
 		cardId: z.string().min(1).nullable().optional(),

src/features/transactions/actions/single-actions.ts

@@ -1,7 +1,7 @@
 "use server";
 
 import { randomUUID } from "node:crypto";
-import { and, eq } from "drizzle-orm";
+import { and, eq, ne } from "drizzle-orm";
 import {
 	attachments,
 	financialAccounts,
@@ -21,6 +21,7 @@ import {
 	getBusinessTodayDate,
 	parseLocalDateString,
 } from "@/shared/utils/date";
+import { copyAttachmentsForImport } from "../attachment-copy";
 import { cleanupAttachmentsAfterTransactionDelete } from "./attachments";
 import {
 	buildLancamentoRecords,
@@ -138,6 +139,14 @@ export async function createTransactionAction(
 			.values(records)
 			.returning({ id: transactions.id });
 
+		if (data.importFromTransactionId && inserted.length > 0) {
+			await copyAttachmentsForImport({
+				sourceTransactionId: data.importFromTransactionId,
+				targetTransactionIds: inserted.map((r) => r.id),
+				targetUserId: user.id,
+			});
+		}
+
 		const notificationEntries = buildEntriesByPayer(
 			records.map((record) => ({
 				payerId: record.payerId ?? null,
@@ -437,6 +446,134 @@ export async function deleteTransactionAction(
 	}
 }
 
+export async function updateTransactionSplitPairAction(
+	input: UpdateInput,
+): Promise<ActionResult> {
+	try {
+		const user = await getUser();
+		const data = updateSchema.parse(input);
+
+		const ownershipError = await validateAllOwnership(user.id, {
+			payerId: data.payerId,
+			categoryId: data.categoryId,
+			accountId: data.accountId,
+			cardId: data.cardId,
+		});
+		if (ownershipError) {
+			return { success: false, error: ownershipError };
+		}
+
+		const existing = await db.query.transactions.findFirst({
+			columns: {
+				id: true,
+				period: true,
+				transactionType: true,
+				condition: true,
+				paymentMethod: true,
+				accountId: true,
+				cardId: true,
+				categoryId: true,
+				splitGroupId: true,
+			},
+			where: and(
+				eq(transactions.id, data.id),
+				eq(transactions.userId, user.id),
+			),
+		});
+
+		if (!existing) {
+			return { success: false, error: "Lançamento não encontrado." };
+		}
+
+		const period = resolvePeriod(data.purchaseDate, data.period);
+		const amountSign: 1 | -1 = data.transactionType === "Despesa" ? -1 : 1;
+		const amountCents = Math.round(Math.abs(data.amount) * 100);
+		const normalizedAmount = centsToDecimalString(amountCents * amountSign);
+		const normalizedSettled =
+			data.paymentMethod === "Cartão de crédito"
+				? null
+				: (data.isSettled ?? false);
+		const shouldSetBoletoPaymentDate =
+			data.paymentMethod === "Boleto" && Boolean(normalizedSettled);
+		const boletoPaymentDateValue = shouldSetBoletoPaymentDate
+			? data.boletoPaymentDate
+				? parseLocalDateString(data.boletoPaymentDate)
+				: getBusinessTodayDate()
+			: null;
+		const targetCardId = data.cardId ?? existing.cardId;
+		const movedInvoice =
+			data.paymentMethod === "Cartão de crédito" &&
+			targetCardId &&
+			(targetCardId !== existing.cardId || period !== existing.period);
+
+		if (movedInvoice) {
+			const paidPeriods = await getPaidInvoicePeriods(user.id, targetCardId, [
+				period,
+			]);
+			if (paidPeriods.length > 0) {
+				return {
+					success: false,
+					error: `As faturas dos meses ${formatPaidInvoicePeriods(
+						paidPeriods,
+					)} já estão pagas. Desfaça o pagamento antes de mover este lançamento.`,
+				};
+			}
+		}
+
+		const purchaseDate = parseLocalDateString(data.purchaseDate);
+		const dueDate = data.dueDate ? parseLocalDateString(data.dueDate) : null;
+
+		const sharedPayload = {
+			name: data.name,
+			purchaseDate,
+			transactionType: data.transactionType,
+			condition: data.condition,
+			paymentMethod: data.paymentMethod,
+			accountId: data.accountId ?? null,
+			cardId: data.cardId ?? null,
+			categoryId: data.categoryId ?? null,
+			note: data.note ?? null,
+			dueDate,
+			period,
+			isSettled: normalizedSettled,
+			boletoPaymentDate: boletoPaymentDateValue,
+		};
+
+		await db.transaction(async (tx: typeof db) => {
+			await tx
+				.update(transactions)
+				.set({
+					...sharedPayload,
+					amount: normalizedAmount,
+					payerId: data.payerId ?? null,
+					installmentCount: data.installmentCount ?? null,
+					recurrenceCount: data.recurrenceCount ?? null,
+				})
+				.where(
+					and(eq(transactions.id, data.id), eq(transactions.userId, user.id)),
+				);
+
+			if (existing.splitGroupId) {
+				await tx
+					.update(transactions)
+					.set(sharedPayload)
+					.where(
+						and(
+							eq(transactions.splitGroupId, existing.splitGroupId),
+							eq(transactions.userId, user.id),
+							ne(transactions.id, data.id),
+						),
+					);
+			}
+		});
+
+		revalidate(user.id);
+		return { success: true, message: "Lançamentos atualizados com sucesso." };
+	} catch (error) {
+		return handleActionError(error);
+	}
+}
+
 export async function toggleTransactionSettlementAction(
 	input: ToggleSettlementInput,
 ): Promise<ActionResult> {

src/features/transactions/attachment-copy.ts

@@ -0,0 +1,107 @@
+import { randomUUID } from "node:crypto";
+import { CopyObjectCommand } from "@aws-sdk/client-s3";
+import { eq } from "drizzle-orm";
+import { attachments, transactionAttachments, transactions } from "@/db/schema";
+import { db } from "@/shared/lib/db";
+import { getPayerAccess } from "@/shared/lib/payers/access";
+import { deleteS3Object } from "@/shared/lib/storage/presign";
+import { S3_BUCKET, s3 } from "@/shared/lib/storage/s3-client";
+
+const SAFE_EXTENSION = /^[a-z0-9]{1,10}$/i;
+
+function sanitizeExtension(fileKey: string): string {
+	const ext = fileKey.split(".").pop() ?? "";
+	return SAFE_EXTENSION.test(ext) ? ext.toLowerCase() : "bin";
+}
+
+export async function copyAttachmentsForImport({
+	sourceTransactionId,
+	targetTransactionIds,
+	targetUserId,
+}: {
+	sourceTransactionId: string;
+	targetTransactionIds: string[];
+	targetUserId: string;
+}): Promise<void> {
+	if (targetTransactionIds.length === 0) return;
+
+	const [source] = await db
+		.select({
+			id: transactions.id,
+			userId: transactions.userId,
+			payerId: transactions.payerId,
+		})
+		.from(transactions)
+		.where(eq(transactions.id, sourceTransactionId));
+
+	if (!source) return;
+
+	if (source.userId !== targetUserId) {
+		if (!source.payerId) return;
+		const access = await getPayerAccess(targetUserId, source.payerId);
+		if (!access) return;
+	}
+
+	const sourceAttachments = await db
+		.select({
+			fileKey: attachments.fileKey,
+			fileName: attachments.fileName,
+			fileSize: attachments.fileSize,
+			mimeType: attachments.mimeType,
+		})
+		.from(transactionAttachments)
+		.innerJoin(
+			attachments,
+			eq(transactionAttachments.attachmentId, attachments.id),
+		)
+		.where(eq(transactionAttachments.transactionId, sourceTransactionId));
+
+	if (sourceAttachments.length === 0) return;
+
+	for (const src of sourceAttachments) {
+		const newFileKey = `${targetUserId}/${randomUUID()}.${sanitizeExtension(src.fileKey)}`;
+
+		try {
+			await s3.send(
+				new CopyObjectCommand({
+					Bucket: S3_BUCKET,
+					CopySource: `${S3_BUCKET}/${src.fileKey}`,
+					Key: newFileKey,
+					ContentType: src.mimeType,
+					MetadataDirective: "COPY",
+				}),
+			);
+		} catch (error) {
+			console.error("Falha ao copiar anexo no S3:", error);
+			continue;
+		}
+
+		try {
+			const [newAttachment] = await db
+				.insert(attachments)
+				.values({
+					userId: targetUserId,
+					fileKey: newFileKey,
+					fileName: src.fileName,
+					fileSize: src.fileSize,
+					mimeType: src.mimeType,
+				})
+				.returning({ id: attachments.id });
+
+			if (!newAttachment) {
+				await deleteS3Object(newFileKey);
+				continue;
+			}
+
+			await db.insert(transactionAttachments).values(
+				targetTransactionIds.map((tid) => ({
+					transactionId: tid,
+					attachmentId: newAttachment.id,
+				})),
+			);
+		} catch (error) {
+			console.error("Falha ao registrar anexo copiado:", error);
+			await deleteS3Object(newFileKey).catch(() => {});
+		}
+	}
+}

src/features/transactions/attachment-queries.ts

@@ -1,6 +1,7 @@
-import { and, eq } from "drizzle-orm";
+import { eq } from "drizzle-orm";
 import { attachments, transactionAttachments, transactions } from "@/db/schema";
 import { db } from "@/shared/lib/db";
+import { getPayerAccess } from "@/shared/lib/payers/access";
 import { createPresignedGetUrl } from "@/shared/lib/storage/presign";
 
 export type TransactionAttachmentListItem = {
@@ -17,16 +18,24 @@ export async function fetchTransactionAttachments(
 	transactionId: string,
 ): Promise<TransactionAttachmentListItem[]> {
 	const [transaction] = await db
-		.select({ id: transactions.id })
+		.select({
+			id: transactions.id,
+			userId: transactions.userId,
+			payerId: transactions.payerId,
+		})
 		.from(transactions)
-		.where(
+		.where(eq(transactions.id, transactionId));
-			and(eq(transactions.id, transactionId), eq(transactions.userId, userId)),
-		);
 
 	if (!transaction) {
 		return [];
 	}
 
+	if (transaction.userId !== userId) {
+		if (!transaction.payerId) return [];
+		const access = await getPayerAccess(userId, transaction.payerId);
+		if (!access) return [];
+	}
+
 	const rows = await db
 		.select({
 			attachmentId: transactionAttachments.attachmentId,
@@ -37,19 +46,9 @@ export async function fetchTransactionAttachments(
 			createdAt: attachments.createdAt,
 		})
 		.from(transactionAttachments)
-		.innerJoin(
-			transactions,
-			and(
-				eq(transactionAttachments.transactionId, transactions.id),
-				eq(transactions.userId, userId),
-			),
-		)
 		.innerJoin(
 			attachments,
-			and(
+			eq(transactionAttachments.attachmentId, attachments.id),
-				eq(transactionAttachments.attachmentId, attachments.id),
-				eq(attachments.userId, userId),
-			),
 		)
 		.where(eq(transactionAttachments.transactionId, transactionId));
 

src/features/transactions/components/dialogs/split-pair-dialog.tsx

@@ -0,0 +1,104 @@
+"use client";
+
+import { useState } from "react";
+import { Button } from "@/shared/components/ui/button";
+import {
+	Dialog,
+	DialogContent,
+	DialogDescription,
+	DialogFooter,
+	DialogHeader,
+	DialogTitle,
+} from "@/shared/components/ui/dialog";
+import { Label } from "@/shared/components/ui/label";
+import { RadioGroup, RadioGroupItem } from "@/shared/components/ui/radio-group";
+
+export type SplitPairScope = "current" | "both";
+
+type SplitPairDialogProps = {
+	open: boolean;
+	onOpenChange: (open: boolean) => void;
+	onConfirm: (scope: SplitPairScope) => void;
+};
+
+export function SplitPairDialog({
+	open,
+	onOpenChange,
+	onConfirm,
+}: SplitPairDialogProps) {
+	const [scope, setScope] = useState<SplitPairScope>("current");
+
+	const handleConfirm = () => {
+		onConfirm(scope);
+		onOpenChange(false);
+	};
+
+	return (
+		<Dialog open={open} onOpenChange={onOpenChange}>
+			<DialogContent className="sm:max-w-md">
+				<DialogHeader>
+					<DialogTitle>Editar lançamento dividido</DialogTitle>
+					<DialogDescription>
+						Este lançamento está dividido com outra pessoa. Escolha o que deseja
+						editar:
+					</DialogDescription>
+				</DialogHeader>
+
+				<RadioGroup
+					value={scope}
+					onValueChange={(v) => setScope(v as SplitPairScope)}
+				>
+					<div className="space-y-4">
+						<div className="flex items-start space-x-3">
+							<RadioGroupItem
+								value="current"
+								id="split-current"
+								className="mt-0.5"
+							/>
+							<div className="flex-1">
+								<Label
+									htmlFor="split-current"
+									className="text-sm cursor-pointer font-medium"
+								>
+									Apenas este lançamento
+								</Label>
+								<p className="text-xs text-muted-foreground">
+									Aplica a alteração somente neste lado da divisão
+								</p>
+							</div>
+						</div>
+
+						<div className="flex items-start space-x-3">
+							<RadioGroupItem value="both" id="split-both" className="mt-0.5" />
+							<div className="flex-1">
+								<Label
+									htmlFor="split-both"
+									className="text-sm cursor-pointer font-medium"
+								>
+									Atualizar os dois lançamentos
+								</Label>
+								<p className="text-xs text-muted-foreground">
+									Aplica nome, data, categoria e outros campos compartilhados
+									nos dois lados da divisão
+								</p>
+							</div>
+						</div>
+					</div>
+				</RadioGroup>
+
+				<DialogFooter>
+					<Button
+						type="button"
+						variant="outline"
+						onClick={() => onOpenChange(false)}
+					>
+						Cancelar
+					</Button>
+					<Button type="button" onClick={handleConfirm}>
+						Confirmar
+					</Button>
+				</DialogFooter>
+			</DialogContent>
+		</Dialog>
+	);
+}

src/features/transactions/components/dialogs/transaction-dialog/transaction-dialog-types.ts

@@ -49,6 +49,26 @@ export interface TransactionDialogProps {
 		pendingDetachIds: string[];
 		pendingUploadFiles: File[];
 	}) => void;
+	onSplitEditRequest?: (data: {
+		id: string;
+		purchaseDate: string;
+		period: string;
+		name: string;
+		transactionType: string;
+		amount: number;
+		condition: string;
+		paymentMethod: string;
+		categoryId: string | undefined;
+		note: string;
+		payerId: string | undefined;
+		accountId: string | undefined;
+		cardId: string | undefined;
+		isSettled: boolean | null;
+		dueDate: string | null;
+		boletoPaymentDate: string | null;
+		pendingDetachIds: string[];
+		pendingUploadFiles: File[];
+	}) => void;
 }
 
 export interface BaseFieldSectionProps {

src/features/transactions/components/dialogs/transaction-dialog/transaction-dialog.tsx

@@ -78,6 +78,7 @@ export function TransactionDialog({
 	onSuccess,
 	maxSizeMb,
 	onBulkEditRequest,
+	onSplitEditRequest,
 }: TransactionDialogProps) {
 	const [dialogOpen, setDialogOpen] = useControlledState(
 		open,
@@ -321,6 +322,10 @@ export function TransactionDialog({
 				formState.boletoPaymentDate
 					? formState.boletoPaymentDate
 					: undefined,
+			importFromTransactionId:
+				mode === "create" && isImporting && transaction?.id
+					? transaction.id
+					: undefined,
 		};
 
 		startTransition(async () => {
@@ -365,6 +370,11 @@ export function TransactionDialog({
 			}
 
 			const hasSeriesId = Boolean(transaction?.seriesId);
+			const hasSplitPair = Boolean(
+				transaction?.isDivided &&
+					transaction?.splitGroupId &&
+					!transaction?.seriesId,
+			);
 
 			if (hasSeriesId && onBulkEditRequest) {
 				// Para lançamentos em série, passa os arquivos para a página confirmar
@@ -398,6 +408,39 @@ export function TransactionDialog({
 				return;
 			}
 
+			if (hasSplitPair && onSplitEditRequest) {
+				onSplitEditRequest({
+					id: transaction?.id ?? "",
+					purchaseDate: formState.purchaseDate,
+					period: formState.period,
+					name: formState.name.trim(),
+					transactionType: formState.transactionType,
+					amount: sanitizedAmount,
+					condition: formState.condition,
+					paymentMethod: formState.paymentMethod,
+					categoryId: formState.categoryId,
+					note: formState.note.trim() || "",
+					payerId: formState.payerId,
+					accountId: formState.accountId,
+					cardId: formState.cardId,
+					isSettled:
+						formState.paymentMethod === "Cartão de crédito"
+							? null
+							: Boolean(formState.isSettled),
+					dueDate:
+						formState.paymentMethod === "Boleto"
+							? formState.dueDate || null
+							: null,
+					boletoPaymentDate:
+						mode === "update" && formState.paymentMethod === "Boleto"
+							? formState.boletoPaymentDate || null
+							: null,
+					pendingDetachIds,
+					pendingUploadFiles,
+				});
+				return;
+			}
+
 			// Atualização normal para lançamentos únicos
 			const updatePayload: UpdateTransactionInput = {
 				id: transaction?.id ?? "",
@@ -609,6 +652,17 @@ export function TransactionDialog({
 										formState={formState}
 										onFieldChange={handleFieldChange}
 									/>
+									{isImportMode && transaction?.id && (
+										<div className="space-y-2">
+											<Label className="text-xs font-medium leading-none">
+												Anexos que serão copiados
+											</Label>
+											<AttachmentSection
+												transactionId={transaction.id}
+												readonly
+											/>
+										</div>
+									)}
 									<AttachmentFilePicker
 										files={pendingFiles}
 										onAdd={(file) => setPendingFiles((prev) => [...prev, file])}

src/features/transactions/components/page/transactions-page.tsx

@@ -8,7 +8,9 @@ import {
 	deleteTransactionAction,
 	deleteTransactionBulkAction,
 	toggleTransactionSettlementAction,
+	updateTransactionAction,
 	updateTransactionBulkAction,
+	updateTransactionSplitPairAction,
 } from "@/features/transactions/actions";
 import {
 	confirmAttachmentUploadAction,
@@ -31,6 +33,10 @@ import {
 	MassAddDialog,
 	type MassAddFormData,
 } from "../dialogs/mass-add-dialog";
+import {
+	SplitPairDialog,
+	type SplitPairScope,
+} from "../dialogs/split-pair-dialog";
 import { TransactionDetailsDialog } from "../dialogs/transaction-details-dialog";
 import { TransactionDialog } from "../dialogs/transaction-dialog/transaction-dialog";
 import { TransactionsTable } from "../table/transactions-table";
@@ -125,6 +131,26 @@ export function TransactionsPage({
 	);
 	const [bulkEditOpen, setBulkEditOpen] = useState(false);
 	const [bulkDeleteOpen, setBulkDeleteOpen] = useState(false);
+	const [pendingSplitEditData, setPendingSplitEditData] = useState<{
+		id: string;
+		name: string;
+		purchaseDate: string;
+		period: string;
+		transactionType: string;
+		amount: number;
+		condition: string;
+		paymentMethod: string;
+		payerId: string | undefined;
+		accountId: string | undefined;
+		cardId: string | undefined;
+		categoryId: string | undefined;
+		note: string;
+		isSettled: boolean | null;
+		dueDate: string | null;
+		boletoPaymentDate: string | null;
+		pendingDetachIds: string[];
+		pendingUploadFiles: File[];
+	} | null>(null);
 	const [pendingEditData, setPendingEditData] = useState<{
 		id: string;
 		purchaseDate: string;
@@ -394,6 +420,90 @@ export function TransactionsPage({
 		setMassAddOpen(true);
 	};
 
+	const handleSplitEditRequest = (
+		data: NonNullable<typeof pendingSplitEditData>,
+	) => {
+		setPendingSplitEditData(data);
+		setEditOpen(false);
+	};
+
+	const handleSplitEdit = async (scope: SplitPairScope) => {
+		if (!pendingSplitEditData) {
+			return;
+		}
+
+		const payload = {
+			id: pendingSplitEditData.id,
+			name: pendingSplitEditData.name,
+			purchaseDate: pendingSplitEditData.purchaseDate,
+			period: pendingSplitEditData.period,
+			transactionType: pendingSplitEditData.transactionType as Parameters<
+				typeof updateTransactionAction
+			>[0]["transactionType"],
+			amount: pendingSplitEditData.amount,
+			condition: pendingSplitEditData.condition as Parameters<
+				typeof updateTransactionAction
+			>[0]["condition"],
+			paymentMethod: pendingSplitEditData.paymentMethod as Parameters<
+				typeof updateTransactionAction
+			>[0]["paymentMethod"],
+			payerId: pendingSplitEditData.payerId ?? null,
+			accountId: pendingSplitEditData.accountId ?? null,
+			cardId: pendingSplitEditData.cardId ?? null,
+			categoryId: pendingSplitEditData.categoryId ?? null,
+			note: pendingSplitEditData.note,
+			isSettled: pendingSplitEditData.isSettled,
+			dueDate: pendingSplitEditData.dueDate ?? undefined,
+			boletoPaymentDate: pendingSplitEditData.boletoPaymentDate ?? undefined,
+			isSplit: false,
+		};
+
+		const action =
+			scope === "both"
+				? updateTransactionSplitPairAction
+				: updateTransactionAction;
+		const result = await action(payload);
+
+		if (!result.success) {
+			toast.error(result.error);
+			throw new Error(result.error);
+		}
+
+		await Promise.all(
+			pendingSplitEditData.pendingDetachIds.map((attachmentId) =>
+				detachAttachmentBulkAction({
+					attachmentId,
+					transactionId: pendingSplitEditData.id,
+					scope: "current",
+				}),
+			),
+		);
+
+		await Promise.all(
+			pendingSplitEditData.pendingUploadFiles.map(async (file) => {
+				const presign = await getPresignedUploadUrlAction({
+					fileName: file.name,
+					mimeType: file.type,
+					fileSize: file.size,
+					transactionId: pendingSplitEditData.id,
+				});
+				if (!presign.success) return;
+				await fetch(presign.presignedUrl, {
+					method: "PUT",
+					body: file,
+					headers: { "Content-Type": file.type },
+				});
+				await confirmAttachmentUploadAction({
+					uploadToken: presign.uploadToken,
+					scope: "current",
+				});
+			}),
+		);
+
+		toast.success(result.message);
+		setPendingSplitEditData(null);
+	};
+
 	const handleEdit = (item: TransactionItem) => {
 		setSelectedTransaction(item);
 		setEditOpen(true);
@@ -557,6 +667,7 @@ export function TransactionsPage({
 				transaction={selectedTransaction ?? undefined}
 				defaultPeriod={selectedPeriod}
 				onBulkEditRequest={handleBulkEditRequest}
+				onSplitEditRequest={handleSplitEditRequest}
 				maxSizeMb={attachmentMaxSizeMb}
 			/>
 
@@ -626,6 +737,14 @@ export function TransactionsPage({
 				onConfirm={handleBulkEdit}
 			/>
 
+			<SplitPairDialog
+				open={pendingSplitEditData !== null}
+				onOpenChange={(open) => {
+					if (!open) setPendingSplitEditData(null);
+				}}
+				onConfirm={handleSplitEdit}
+			/>
+
 			{allowCreate && massAddOpen ? (
 				<MassAddDialog
 					open={massAddOpen}

src/features/transactions/components/table/transactions-filters.tsx

@@ -265,7 +265,8 @@ export function TransactionsFilters({
 		searchParams.get("category") ||
 		searchParams.get("accountCard") ||
 		searchParams.get("settled") ||
-		searchParams.get("hasAttachment");
+		searchParams.get("hasAttachment") ||
+		searchParams.get("isDivided");
 
 	const handleResetFilters = () => {
 		handleReset();
@@ -628,6 +629,23 @@ export function TransactionsFilters({
 										}}
 									/>
 								</div>
+
+								<div className="flex items-center justify-between">
+									<label
+										htmlFor="filter-is-divided"
+										className="text-sm font-medium cursor-pointer"
+									>
+										Somente divididos
+									</label>
+									<Switch
+										id="filter-is-divided"
+										checked={searchParams.get("isDivided") === "true"}
+										disabled={isPending}
+										onCheckedChange={(checked) => {
+											handleFilterChange("isDivided", checked ? "true" : null);
+										}}
+									/>
+								</div>
 							</div>
 
 							<DrawerFooter>

src/features/transactions/components/types.ts

@@ -33,6 +33,7 @@ export type TransactionItem = {
 	isAnticipated: boolean;
 	anticipationId: string | null;
 	seriesId: string | null;
+	splitGroupId: string | null;
 	hasAttachments: boolean;
 	readonly?: boolean;
 };

src/features/transactions/export-types.ts

@@ -8,6 +8,7 @@ export type TransactionExportFilters = {
 	searchFilter: string | null;
 	settledFilter: string | null;
 	attachmentFilter: string | null;
+	dividedFilter: string | null;
 };
 
 export type TransactionsExportContext = {

src/features/transactions/page-helpers.ts

@@ -45,6 +45,7 @@ export type TransactionSearchFilters = {
 	searchFilter: string | null;
 	settledFilter: string | null;
 	attachmentFilter: string | null;
+	dividedFilter: string | null;
 };
 
 type BaseSluggedOption = {
@@ -134,6 +135,7 @@ export const extractTransactionSearchFilters = (
 	searchFilter: getSingleParam(params, "q"),
 	settledFilter: getSingleParam(params, "settled"),
 	attachmentFilter: getSingleParam(params, "hasAttachment"),
+	dividedFilter: getSingleParam(params, "isDivided"),
 });
 
 export const resolveTransactionPagination = (
@@ -402,6 +404,10 @@ export const buildTransactionWhere = ({
 		);
 	}
 
+	if (filters.dividedFilter === "true") {
+		where.push(eq(transactions.isDivided, true));
+	}
+
 	const searchPattern = buildSearchPattern(filters.searchFilter);
 	if (searchPattern) {
 		where.push(
@@ -468,6 +474,7 @@ export const mapTransactionsData = (rows: TransactionRowWithRelations[]) =>
 		isAnticipated: item.isAnticipated ?? false,
 		anticipationId: item.anticipationId ?? null,
 		seriesId: item.seriesId ?? null,
+		splitGroupId: item.splitGroupId ?? null,
 		hasAttachments: item.hasAttachments ?? false,
 		readonly:
 			Boolean(item.note?.startsWith(ACCOUNT_AUTO_INVOICE_NOTE_PREFIX)) ||