fix(sync): use CW watermark incremental path for critical tables

dalpuri/src/sync.ts

@@ -79,20 +79,46 @@ const CRITICAL_INCREMENTAL_RECONCILE_TABLES = new Set([
   "Companies",
   "Company Addresses",
   "Contacts",
+  "Opportunities",
+]);
+
+const CRITICAL_CW_WATERMARK_TABLES = new Set([
+  "Companies",
+  "Company Addresses",
+  "Contacts",
+  "Opportunities",
 ]);
 
 const criticalFullSyncIntervalMinutes = Math.max(
   1,
   Number.parseInt(
-    process.env.DALPURI_CRITICAL_FULL_SYNC_INTERVAL_MINUTES ?? "60",
+    process.env.DALPURI_CRITICAL_FULL_SYNC_INTERVAL_MINUTES ?? "15",
     10
-  ) || 60
+  ) || 15
 );
 
 const CRITICAL_FULL_SYNC_INTERVAL_MS =
   criticalFullSyncIntervalMinutes * 60 * 1000;
 
+const criticalCwWatermarkOverlapSeconds = Math.max(
+  5,
+  Number.parseInt(
+    process.env.DALPURI_CRITICAL_CW_WATERMARK_OVERLAP_SECONDS ?? "60",
+    10
+  ) || 60
+);
+
+const CRITICAL_CW_WATERMARK_OVERLAP_MS =
+  criticalCwWatermarkOverlapSeconds * 1000;
+
+const criticalCwDeltaLimit = Math.max(
+  100,
+  Number.parseInt(process.env.DALPURI_CRITICAL_CW_DELTA_LIMIT ?? "5000", 10) ||
+    5000
+);
+
 const lastCriticalFullSyncByStep = new Map<string, number>();
+const lastCriticalCwWatermarkByStep = new Map<string, Date>();
 
 const shouldForceCriticalFullSync = (
   step: Step,
@@ -112,6 +138,73 @@ const shouldForceCriticalFullSync = (
   return true;
 };
 
+const computeCriticalCwWatermarkDecision = async (
+  cwPrisma: CwPrismaClient,
+  step: Step,
+  forceIncremental: boolean
+): Promise<SmartSyncDecision | null> => {
+  if (!forceIncremental) return null;
+  if (!CRITICAL_CW_WATERMARK_TABLES.has(step.name)) return null;
+
+  const cwDelegate = (
+    cwPrisma as unknown as Record<string, { findMany: Function } | undefined>
+  )[step.sourceModel];
+
+  if (!cwDelegate) {
+    return null;
+  }
+
+  const existingWhere =
+    (step.sourceArgs as Record<string, unknown> | undefined)?.where ?? {};
+
+  const lastWatermark = lastCriticalCwWatermarkByStep.get(step.name);
+  const lowerBound = lastWatermark
+    ? new Date(lastWatermark.getTime() - CRITICAL_CW_WATERMARK_OVERLAP_MS)
+    : new Date(Date.now() - CRITICAL_CW_WATERMARK_OVERLAP_MS);
+
+  const rows = (await cwDelegate.findMany({
+    select: {
+      [step.sourceIdField]: true,
+      [step.sourceUpdatedField]: true,
+    },
+    where: {
+      ...(existingWhere as Record<string, unknown>),
+      [step.sourceUpdatedField]: {
+        gte: lowerBound,
+      },
+    },
+    orderBy: { [step.sourceUpdatedField]: "asc" },
+    take: criticalCwDeltaLimit,
+  })) as Row[];
+
+  if (rows.length >= criticalCwDeltaLimit) {
+    console.warn(
+      `  [smart-sync][critical-watermark] ${step.name}: delta reached limit (${criticalCwDeltaLimit}), forcing full sync`
+    );
+    return { mode: "full", differences: [] };
+  }
+
+  if (rows.length > 0) {
+    const latest = rows[rows.length - 1][step.sourceUpdatedField] as Date | null;
+    if (latest) {
+      lastCriticalCwWatermarkByStep.set(step.name, latest);
+    }
+  } else if (!lastWatermark) {
+    lastCriticalCwWatermarkByStep.set(step.name, new Date());
+  }
+
+  const sourceIds = rows.map((r) => r[step.sourceIdField] as number);
+  console.log(
+    `  [smart-sync][critical-watermark] ${step.name}: ${sourceIds.length} ids since ${lowerBound.toISOString()}`
+  );
+
+  return {
+    mode: "incremental",
+    sourceIds,
+    differences: [],
+  };
+};
+
 const parseEnvFile = (path: string): Record<string, string> => {
   const envData = readFileSync(path, "utf8");
   const out: Record<string, string> = {};
@@ -1808,13 +1901,18 @@ export const executeFullDalpuriSync = async (options?: {
         step,
         forceIncremental
       );
+      const criticalWatermarkDecision = await computeCriticalCwWatermarkDecision(
+        cwPrisma,
+        step,
+        forceIncremental
+      );
       const forceCriticalFullSync = shouldForceCriticalFullSync(
         step,
         forceIncremental
       );
       const effectiveDecision = forceCriticalFullSync
         ? ({ mode: "full", differences: decision.differences } as SmartSyncDecision)
-        : decision;
+        : criticalWatermarkDecision ?? decision;
 
       if (forceCriticalFullSync) {
         console.log(