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import type { Logger } from "pino";
import { tokens } from "../../registry/tokens.js";
import { AccountSummaryEventHandlerClean } from "./account-summary-event-handler-clean.js";
import { TransactionLogService } from "./transaction-log.service.js";
import { AccountSummaryEventV2 } from "./account-summary-event.js";
import { AccountSummaryEntity } from "../entity/account.summary.entity.js";
import { Result } from "../../tr8-script/domain/utils/types.js";
import { CostBasisRecalculationService } from "./cost-basis-recalculation.service.js";
@injectable()
class AccountSummaryEventHandlerWithCancel {
constructor(
@inject(tokens.Logger) private readonly logger: Logger,
private readonly baseHandler: AccountSummaryEventHandlerClean,
private readonly transactionLogService: TransactionLogService,
private readonly costBasisRecalculationService: CostBasisRecalculationService,
) {}
async handle(
event: AccountSummaryEventV2,
partition: number,
offset: string,
): Promise<Result<AccountSummaryEntity[], Error>> {
try {
// This handler is only called for cancel events now
// Normal events are handled directly by AccountSummaryEventHandlerClean
return await this.handleCancelEvent(event, partition, offset);
} catch (error) {
this.logger.error(
{ err: error },
"[AccountSummaryHandlerWithCancel] Failed to handle cancel event",
);
return { ok: false, error: error as Error };
}
}
private async handleCancelEvent(
event: AccountSummaryEventV2,
_partition: number,
_offset: string,
): Promise<Result<AccountSummaryEntity[], Error>> {
try {
const metadata =
typeof event.metadata === "string"
? JSON.parse(event.metadata)
: event.metadata;
const alpacaEventIdToCancel = metadata.alpaca_non_trade_event_id;
const cancelEventId = event.id;
if (!alpacaEventIdToCancel) {
this.logger.error(
`[CancelEvent] Missing alpaca_non_trade_event_id in cancel event ${cancelEventId}`,
);
return {
ok: false,
error: new Error(
`Missing alpaca_non_trade_event_id in cancel event ${cancelEventId}`,
),
};
}
this.logger.info(
`[CancelEvent] Processing cancel event ${cancelEventId} for alpaca_event_id ${alpacaEventIdToCancel}`,
);
// STEP 1: Find ALL original transactions by alpaca_non_trade_event_id
const originalTransactions =
await this.transactionLogService.findAllByAlpacaNonTradeEventId(
alpacaEventIdToCancel,
);
if (!originalTransactions || originalTransactions.length === 0) {
this.logger.error(
`[CancelEvent] Original transactions not found for alpaca_event_id ${alpacaEventIdToCancel}`,
);
return {
ok: false,
error: new Error(
`Original transactions not found for alpaca_event_id ${alpacaEventIdToCancel}`,
),
};
}
this.logger.info(
`[CancelEvent] Found ${originalTransactions.length} original transaction(s) for alpaca_event_id ${alpacaEventIdToCancel}`,
);
// Get the earliest transaction time for propagation
const earliestTxTime = originalTransactions.reduce((earliest, tx) => {
const txTime = new Date(tx.transaction_time);
return txTime < earliest ? txTime : earliest;
}, new Date(originalTransactions[0]!.transaction_time));
// Get bookId from first transaction
const bookId = originalTransactions[0]!.book_id;
// STEP 2: Mark ALL originals as SUPERSEDED
const markResult =
await this.transactionLogService.markAllAsSupersededByAlpacaNonTradeEventId(
alpacaEventIdToCancel,
cancelEventId,
);
if (!markResult.ok) {
return {
ok: false,
error: new Error(
`Failed to mark event ${alpacaEventIdToCancel} as superseded: ${markResult.error.message}`,
),
};
}
this.logger.info(
`[CancelEvent] Marked ${markResult.value} transaction(s) as SUPERSEDED`,
);
// STEP 3: Save cancel event to transaction log
await this.saveToTransactionLog(event);
// STEP 4: Extract COST-BASIS account ID for recalculation
const accountId = this.extractCostBasisAccountId(event, bookId);
Iif (!accountId) {
this.logger.warn(
`[CancelEvent] Could not extract COST-BASIS account ID from event`,
);
return {
ok: false,
error: new Error(
`Could not extract COST-BASIS account ID from cancel event`,
),
};
}
// STEP 5: Full replay from cancel date (NOT nextDay)
// This handles cases where there are multiple transactions on the same day
// e.g., Day 17: ADD 30@13 (canceled) + SUB 40 (should be recalculated with new avg)
//
// By replaying from cancel date:
// 1. Get snapshot BEFORE cancel date (e.g., Day 16)
// 2. Replay ALL ACTIVE transactions from cancel date onwards
// 3. The canceled transaction is already marked SUPERSEDED, so it will be skipped
const cancelDate = new Date(earliestTxTime);
cancelDate.setHours(0, 0, 0, 0);
this.logger.info(
`[CancelEvent] Starting full replay from cancel date ${cancelDate.toISOString()} for account ${accountId}`,
);
const recalcResult =
await this.costBasisRecalculationService.recalculateFromDate(
bookId,
accountId,
cancelDate,
);
let allUpdatedSummaries: AccountSummaryEntity[] = [];
if (recalcResult.ok) {
allUpdatedSummaries = recalcResult.value;
this.logger.info(
`[CancelEvent] Full replay completed. Recalculated ${recalcResult.value.length} snapshots`,
);
} else {
this.logger.error(
{ err: recalcResult.error },
`[CancelEvent] Full replay failed`,
);
return {
ok: false,
error: new Error(`Full replay failed: ${recalcResult.error.message}`),
};
}
// STEP 9: Send to GTI
Eif (allUpdatedSummaries.length > 0) {
await this.baseHandler.sendToGtiEvent(allUpdatedSummaries);
}
this.logger.info(
`[CancelEvent] Cancel event processing completed. Total updated: ${allUpdatedSummaries.length} snapshots`,
);
return { ok: true, value: allUpdatedSummaries };
} catch (error) {
this.logger.error(
{ err: error },
"[CancelEvent] Failed to handle cancel event",
);
return { ok: false, error: error as Error };
}
}
/**
* Extract COST-BASIS account ID from event metrics
*/
private extractCostBasisAccountId(
event: AccountSummaryEventV2,
bookId: string,
): string | null {
// Try to get from metrics first
Eif (event.metrics && event.metrics.length > 0) {
for (const metric of event.metrics) {
Eif (metric.account.includes("COST-BASIS")) {
return metric.account;
}
}
}
// Try to get from metadata ticker
const metadata =
typeof event.metadata === "string"
? JSON.parse(event.metadata)
: event.metadata;
if (metadata?.ticker) {
// Construct account ID from ticker
// Format: gti-staging-S-OWN-BRK.B-COST-BASIS
const prefix = bookId.split(":")[1] || "gti-staging";
return `${prefix}-S-OWN-${metadata.ticker}-COST-BASIS`;
}
return null;
}
private async saveToTransactionLog(
event: AccountSummaryEventV2,
): Promise<void> {
try {
const transactionDetails =
this.transactionLogService.extractTransactionDetails(event);
for (const details of transactionDetails) {
const result = await this.transactionLogService.saveTransaction(
details,
);
if (result.ok) {
this.logger.info(
`[TransactionLog] Saved transaction for event ${details.eventId}, operation=${details.operation}`,
);
} else {
this.logger.error(
{ err: result.error },
`[TransactionLog] Failed to save transaction for event ${details.eventId}`,
);
}
}
} catch (error) {
this.logger.error(
{ err: error },
"[TransactionLog] Failed to save to transaction log",
);
}
}
}
export { AccountSummaryEventHandlerWithCancel };
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