MaxDrawdownReportService

Service for logging max drawdown events to the JSONL report database.

Listens to maxDrawdownSubject and writes each new drawdown record to ReportWriter.writeData() for persistence and analytics.

Constructor

constructor();
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Properties

loggerService

loggerService: any
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_lastWrittenPnl

_lastWrittenPnl: any
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Last WRITTEN drawdown PnL percent per signal — state of the CC_REPORT_MAX_DRAWDOWN_MIN_STEP_PERCENT write-gate. FIFO-bounded (see MAX_DRAWDOWN_GATE_MAP_LIMIT).

tick

tick: any
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Handles a single MaxDrawdownContract event emitted by maxDrawdownSubject.

Writes a JSONL record to the "max_drawdown" report database via ReportWriter.writeData, capturing the full signal snapshot at the moment the new drawdown record was set:

• timestamp, symbol, strategyName, exchangeName, frameName, backtest
• signalId, position, currentPrice
• priceOpen, priceTakeProfit, priceStopLoss (effective values from the signal)

strategyName and signal-level fields are sourced from data.signal rather than the contract root.

subscribe

subscribe: (() => () => void) & ISingleshotClearable<() => () => void>
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Subscribes to maxDrawdownSubject to start persisting drawdown records. Protected against multiple subscriptions via singleshot — subsequent calls return the same unsubscribe function without re-subscribing.

The returned unsubscribe function clears the singleshot state and detaches from maxDrawdownSubject.

unsubscribe

unsubscribe: () => Promise<void>
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Detaches from maxDrawdownSubject, stopping further JSONL writes.

Calls the unsubscribe closure returned by subscribe(). If subscribe() was never called, does nothing.