import { invoke } from '@tauri-apps/api/core';
import { useAuthStore } from './authStore';

/**
 * Forward a structured normalization-pipeline trace to the Rust-side debug
 * log file when Settings → Logging is set to **Debug**. A no-op otherwise,
 * so the dozens of call sites in `playerStore` (refresh / backfill / engine
 * sync / track-switch instrumentation) carry zero cost in normal mode.
 *
 * Errors invoking the Rust command are swallowed — this is best-effort
 * instrumentation, not a playback dependency.
 */
export function emitNormalizationDebug(step: string, details?: Record<string, unknown>): void {
  if (useAuthStore.getState().loggingMode !== 'debug') return;
  void invoke('frontend_debug_log', {
    scope: 'normalization',
    message: JSON.stringify({ step, details }),
  }).catch(() => {});
}