Redesign infrastructure to hypercluster scale with 4-level hierarchy

Replace flat DataCenter/Rack model with Cluster > Campus > Data Center > Racks
hierarchy. Individual rack entities eliminated in favor of statistical batch
simulation using deployment cohorts. Adds tiered network topology (ToR/agg/core)
with proportional outage model, DC retrofitting, bulk operations, and drill-down
UI navigation with breadcrumbs. First cluster and campus are free to preserve
early game flow. Rebalances starting economy ($600K), funding rounds, and
cohort scaling for hypercluster-scale gameplay.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

packages/game-engine/src/systems/economySystem.ts

@@ -10,9 +10,14 @@ export function processEconomy(
 ): EconomyState {
   const revenue = market.apiRevenue + market.subscriptionRevenue;
 
-  const infraExpenses = infrastructure.dataCenters.reduce((sum, dc) => {
-    return sum + dc.energyCostPerTick + dc.maintenanceCostPerTick;
-  }, 0);
+  let infraExpenses = 0;
+  for (const cluster of infrastructure.clusters) {
+    for (const campus of cluster.campuses) {
+      for (const dc of campus.dataCenters) {
+        infraExpenses += dc.energyCostPerTick + dc.maintenanceCostPerTick;
+      }
+    }
+  }
 
   const talentExpenses = state.talent.totalSalaryPerTick;
   const dataExpenses = state.data.partnerships.reduce((sum, p) => sum + p.costPerTick, 0);

packages/game-engine/src/systems/infrastructureSystem.ts

@@ -1,4 +1,7 @@
-import type { GameState, InfrastructureState, DataCenter, RackOrder, Rack, PipelineStage } from '@ai-tycoon/shared';
+import type {
+  GameState, InfrastructureState, Cluster, Campus, DataCenter,
+  DeploymentCohort, NetworkHealthState, PipelineStage,
+} from '@ai-tycoon/shared';
 import {
   LOCATION_CONFIGS,
   RACK_SKU_CONFIGS,
@@ -8,6 +11,10 @@ import {
   COOLING_FAILURE_REDUCTION,
   REDUNDANCY_FAILURE_REDUCTION,
   RACK_REPAIR_BASE_TICKS,
+  NETWORK_TOPOLOGY,
+  COHORT_SCALE_FACTOR,
+  PIPELINE_ORDER_BASE_TICKS,
+  networkSlotsRequired,
 } from '@ai-tycoon/shared';
 import type { TickNotification } from '../tick';
 
@@ -27,18 +34,21 @@ function nextStage(stage: PipelineStage): PipelineStage | 'production' {
   return PIPELINE_ADVANCE_ORDER[idx + 1];
 }
 
-function stageTotal(stage: PipelineStage, order: RackOrder): number {
-  const sku = RACK_SKU_CONFIGS[order.skuId];
+function cohortStageTotal(stage: PipelineStage, skuId: string, count: number): number {
+  const sku = RACK_SKU_CONFIGS[skuId as keyof typeof RACK_SKU_CONFIGS];
   const timings = sku.pipelineTimeTicks;
+  let base: number;
   switch (stage) {
-    case 'manufacturing': return timings.manufacturing;
-    case 'receiving': return timings.receiving;
-    case 'installation': return timings.installation;
-    case 'testing': return timings.testing;
-    case 'repair': return RACK_REPAIR_BASE_TICKS;
-    case 'decommission': return timings.installation;
-    default: return 0;
+    case 'ordered': base = PIPELINE_ORDER_BASE_TICKS; break;
+    case 'manufacturing': base = timings.manufacturing; break;
+    case 'receiving': base = timings.receiving; break;
+    case 'installation': base = timings.installation; break;
+    case 'testing': base = timings.testing; break;
+    case 'repair': base = RACK_REPAIR_BASE_TICKS; break;
+    case 'decommission': base = timings.installation; break;
+    default: base = 0;
   }
+  return Math.ceil(base * (1 + COHORT_SCALE_FACTOR * count));
 }
 
 function stageSpeed(stage: PipelineStage, engEff: number, opsEff: number): number {
@@ -52,235 +62,403 @@ function stageSpeed(stage: PipelineStage, engEff: number, opsEff: number): numbe
   }
 }
 
+function binomialSample(n: number, p: number): number {
+  if (n <= 0 || p <= 0) return 0;
+  if (p >= 1) return n;
+  const expected = n * p;
+  const base = Math.floor(expected);
+  const frac = expected - base;
+  return base + (Math.random() < frac ? 1 : 0);
+}
+
+function computeNetworkHealth(computeRacksOnline: number): NetworkHealthState {
+  if (computeRacksOnline <= 0) {
+    return { tier1Required: 0, tier1Healthy: 0, tier2Required: 0, tier2Healthy: 0, tier3Required: 0, tier3Healthy: 0, racksDisconnected: 0 };
+  }
+  const tier1 = Math.ceil(computeRacksOnline / NETWORK_TOPOLOGY.tier1PerCompute);
+  const tier2 = Math.ceil(tier1 / NETWORK_TOPOLOGY.tier2PerTier1);
+  const tier3 = NETWORK_TOPOLOGY.tier3PerDC;
+  return {
+    tier1Required: tier1,
+    tier1Healthy: tier1,
+    tier2Required: tier2,
+    tier2Healthy: tier2,
+    tier3Required: tier3,
+    tier3Healthy: tier3,
+    racksDisconnected: 0,
+  };
+}
+
+function processNetworkFailures(
+  nh: NetworkHealthState,
+  computeRacksOnline: number,
+  networkResearchBonus: number,
+): { networkHealth: NetworkHealthState; racksDisconnected: number } {
+  if (computeRacksOnline <= 0) {
+    return { networkHealth: nh, racksDisconnected: 0 };
+  }
+
+  let racksDisconnected = 0;
+
+  const t1Rate = NETWORK_TOPOLOGY.tier1FailureRate * (1 - networkResearchBonus);
+  const t1Failures = binomialSample(nh.tier1Required, t1Rate);
+  const tier1Healthy = nh.tier1Required - t1Failures;
+  racksDisconnected += t1Failures * NETWORK_TOPOLOGY.tier1BlastRadius;
+
+  const t2Rate = NETWORK_TOPOLOGY.tier2FailureRate * (1 - networkResearchBonus);
+  const t2Failures = binomialSample(nh.tier2Required, t2Rate);
+  const tier2Healthy = nh.tier2Required - t2Failures;
+  racksDisconnected += t2Failures * NETWORK_TOPOLOGY.tier1BlastRadius * NETWORK_TOPOLOGY.tier2BlastRadiusMultiplier;
+
+  const t3Rate = NETWORK_TOPOLOGY.tier3FailureRate * (1 - networkResearchBonus);
+  const t3Failures = binomialSample(nh.tier3Required, t3Rate);
+  const tier3Healthy = nh.tier3Required - t3Failures;
+  if (t3Failures > 0) {
+    racksDisconnected = computeRacksOnline;
+  }
+
+  racksDisconnected = Math.min(racksDisconnected, computeRacksOnline);
+
+  return {
+    networkHealth: {
+      ...nh,
+      tier1Healthy,
+      tier2Healthy,
+      tier3Healthy,
+      racksDisconnected,
+    },
+    racksDisconnected,
+  };
+}
+
 export function processInfrastructure(state: GameState): InfraTickResult {
   const notifications: TickNotification[] = [];
   let repairCosts = 0;
 
   const engEff = state.talent.departments.engineering.effectiveness;
   const opsEff = state.talent.departments.operations.effectiveness;
-
   const qaResearchBonus = state.research.completedResearch.includes('quality-assurance') ? 0.25 : 0;
+  const netResearch1 = state.research.completedResearch.includes('network-engineering-i') ? 0.4 : 0;
+  const netResearch2 = state.research.completedResearch.includes('network-engineering-ii') ? 0.5 : 0;
+  const networkResearchBonus = Math.min(0.8, netResearch1 + netResearch2);
 
-  // --- Phase 1: Advance DC Construction ---
-  const dataCenters: DataCenter[] = state.infrastructure.dataCenters.map(dc => {
-    if (dc.status !== 'constructing') return { ...dc };
-
-    const newProgress = dc.constructionProgress + 1;
-    if (newProgress >= dc.constructionTotal) {
-      notifications.push({
-        title: 'Data Center Online',
-        message: `${dc.name} is now operational!`,
-        type: 'success',
-      });
-      return { ...dc, constructionProgress: dc.constructionTotal, status: 'operational' as const };
-    }
-    return { ...dc, constructionProgress: newProgress };
-  });
-
-  // --- Phase 2: Advance Rack Pipeline ---
-  const rackPipeline: RackOrder[] = [];
-  const newRacks: Rack[] = [];
-
-  for (const order of state.infrastructure.rackPipeline) {
-    const speed = stageSpeed(order.stage, engEff, opsEff);
-    const newProgress = order.stageProgress + speed;
-
-    if (newProgress < order.stageTotal) {
-      rackPipeline.push({ ...order, stageProgress: newProgress });
-      continue;
-    }
-
-    if (order.stage === 'decommission') {
-      const sku = RACK_SKU_CONFIGS[order.skuId];
-      notifications.push({
-        title: 'Rack Decommissioned',
-        message: `${sku.name} rack has been fully decommissioned.`,
-        type: 'info',
-      });
-      continue;
-    }
-
-    if (order.stage === 'repair') {
-      const total = stageTotal('testing', order);
-      rackPipeline.push({
-        ...order,
-        stage: 'testing',
-        stageProgress: 0,
-        stageTotal: total,
-      });
-      continue;
-    }
-
-    const next = nextStage(order.stage);
-
-    if (next === 'production') {
-      const sku = RACK_SKU_CONFIGS[order.skuId];
-      const dc = dataCenters.find(d => d.id === order.dataCenterId);
-      const cooling = dc?.coolingLevel ?? 0;
-
-      const effectiveFailRate = sku.testFailureRate
-        * (1 - cooling * COOLING_FAILURE_REDUCTION)
-        * (1 - opsEff * 0.2)
-        * (1 - qaResearchBonus);
-
-      if (Math.random() < effectiveFailRate) {
-        const repairCost = sku.baseCost * sku.repairCostFraction;
-        repairCosts += repairCost;
-        rackPipeline.push({
-          ...order,
-          stage: 'repair',
-          stageProgress: 0,
-          stageTotal: RACK_REPAIR_BASE_TICKS,
-          repairCount: order.repairCount + 1,
-        });
-        notifications.push({
-          title: 'Rack Failed Testing',
-          message: `${sku.name} rack failed QA (attempt ${order.repairCount + 1}). Repair cost: $${repairCost.toLocaleString()}`,
-          type: 'warning',
-        });
-      } else {
-        newRacks.push({
-          id: order.id,
-          skuId: order.skuId,
-          dataCenterId: order.dataCenterId,
-          isHealthy: true,
-        });
-        notifications.push({
-          title: 'Rack Online',
-          message: `${sku.name} rack is now in production at ${dc?.name ?? 'data center'}.`,
-          type: 'success',
-        });
-      }
-    } else {
-      const total = stageTotal(next, order);
-      rackPipeline.push({
-        ...order,
-        stage: next,
-        stageProgress: 0,
-        stageTotal: total,
-      });
-    }
-  }
-
-  // Add newly completed racks to their data centers
-  for (const rack of newRacks) {
-    const dcIdx = dataCenters.findIndex(d => d.id === rack.dataCenterId);
-    if (dcIdx !== -1) {
-      dataCenters[dcIdx] = {
-        ...dataCenters[dcIdx],
-        racks: [...dataCenters[dcIdx].racks, rack],
-      };
-    }
-  }
-
-  // --- Phase 3: Production Failures ---
-  for (let dcIdx = 0; dcIdx < dataCenters.length; dcIdx++) {
-    const dc = dataCenters[dcIdx];
-    if (dc.status !== 'operational') continue;
-
-    const updatedRacks: Rack[] = [];
-    for (const rack of dc.racks) {
-      if (!rack.isHealthy) {
-        updatedRacks.push(rack);
-        continue;
-      }
-
-      const sku = RACK_SKU_CONFIGS[rack.skuId];
-      const effectiveRate = sku.productionFailureRate
-        * (1 - dc.coolingLevel * COOLING_FAILURE_REDUCTION)
-        * (1 - dc.redundancyLevel * REDUNDANCY_FAILURE_REDUCTION);
-
-      if (Math.random() < effectiveRate) {
-        updatedRacks.push({ ...rack, isHealthy: false });
-        const repairCost = sku.baseCost * sku.repairCostFraction;
-        repairCosts += repairCost;
-
-        rackPipeline.push({
-          id: rack.id,
-          skuId: rack.skuId,
-          dataCenterId: dc.id,
-          stage: 'repair',
-          stageProgress: 0,
-          stageTotal: RACK_REPAIR_BASE_TICKS,
-          totalCost: repairCost,
-          repairCount: 0,
-        });
-
-        notifications.push({
-          title: 'Rack Failure',
-          message: `${sku.name} rack failed in ${dc.name}. Sent for repair.`,
-          type: 'danger',
-        });
-      } else {
-        updatedRacks.push(rack);
-      }
-    }
-
-    // Remove failed racks from the DC (they're now in the repair pipeline)
-    dataCenters[dcIdx] = {
-      ...dc,
-      racks: updatedRacks.filter(r => r.isHealthy),
-    };
-  }
-
-  // --- Phase 4: Compute Aggregates ---
   let totalFlops = 0;
   let totalUptime = 0;
   let totalRackCount = 0;
+  let totalComputeRackCount = 0;
+  let totalDataCenterCount = 0;
   let dcWithRacks = 0;
 
-  for (let dcIdx = 0; dcIdx < dataCenters.length; dcIdx++) {
-    const dc = dataCenters[dcIdx];
-    if (dc.status !== 'operational') continue;
-
-    const location = LOCATION_CONFIGS[dc.location];
-    const tierConfig = DC_TIER_CONFIGS[dc.tier];
-
-    let dcFlops = 0;
-    let usedPowerKW = 0;
-    const repairingForDc = rackPipeline.filter(o => o.dataCenterId === dc.id && o.stage === 'repair').length;
-    const healthyCount = dc.racks.length;
-    const totalInDc = dc.racks.length + repairingForDc;
-
-    for (const rack of dc.racks) {
-      const sku = RACK_SKU_CONFIGS[rack.skuId];
-      dcFlops += sku.flopsPerRack;
-      usedPowerKW += sku.powerDrawKW;
+  const clusters: Cluster[] = state.infrastructure.clusters.map(cluster => {
+    // Advance cluster construction
+    if (cluster.status === 'constructing') {
+      const newProgress = cluster.constructionProgress + 1;
+      if (newProgress >= cluster.constructionTotal) {
+        notifications.push({
+          title: 'Cluster Online',
+          message: `${cluster.name} cluster in ${LOCATION_CONFIGS[cluster.locationId].name} is now operational!`,
+          type: 'success',
+        });
+        return { ...cluster, constructionProgress: cluster.constructionTotal, status: 'operational' as const, campuses: cluster.campuses };
+      }
+      return { ...cluster, constructionProgress: newProgress };
     }
 
-    const pipelineRacksForDc = rackPipeline.filter(o => o.dataCenterId === dc.id && o.stage !== 'decommission').length;
-    const usedSlots = totalInDc + pipelineRacksForDc;
+    const campuses: Campus[] = cluster.campuses.map(campus => {
+      // Advance campus construction
+      if (campus.status === 'constructing') {
+        const newProgress = campus.constructionProgress + 1;
+        if (newProgress >= campus.constructionTotal) {
+          notifications.push({
+            title: 'Campus Ready',
+            message: `Campus ${campus.name} is now operational!`,
+            type: 'success',
+          });
+          return { ...campus, constructionProgress: campus.constructionTotal, status: 'operational' as const, dataCenters: campus.dataCenters };
+        }
+        return { ...campus, constructionProgress: newProgress };
+      }
 
-    const energyCostPerTick = (tierConfig.baseEnergyCostPerTick + usedPowerKW * BASE_ENERGY_COST_PER_FLOP)
-      * location.energyCostMultiplier;
-    const maintenanceCostPerTick = totalInDc * BASE_MAINTENANCE_PER_RACK;
+      const dataCenters: DataCenter[] = campus.dataCenters.map(dc => {
+        // Advance DC construction
+        if (dc.status === 'constructing') {
+          const newProgress = dc.constructionProgress + 1;
+          if (newProgress >= dc.constructionTotal) {
+            notifications.push({
+              title: 'Data Center Online',
+              message: `${dc.name} is now operational!`,
+              type: 'success',
+            });
+            return { ...dc, constructionProgress: dc.constructionTotal, status: 'operational' as const };
+          }
+          return { ...dc, constructionProgress: newProgress };
+        }
 
-    const currentUptime = totalInDc > 0 ? healthyCount / totalInDc : 1;
+        let computeRacksOnline = dc.computeRacksOnline;
+        let computeRacksFailed = dc.computeRacksFailed;
+        let dcRepairCosts = 0;
 
-    totalFlops += dcFlops;
-    totalRackCount += totalInDc;
-    if (totalInDc > 0) {
-      totalUptime += currentUptime;
-      dcWithRacks++;
-    }
+        // Process retrofit
+        if (dc.status === 'retrofitting' && dc.retrofitState) {
+          const rs = { ...dc.retrofitState };
+          rs.progress += (1 + opsEff * 0.1);
 
-    dataCenters[dcIdx] = {
-      ...dataCenters[dcIdx],
-      usedSlots,
-      usedPowerKW,
-      energyCostPerTick,
-      maintenanceCostPerTick,
-      currentUptime,
-    };
-  }
+          if (rs.progress >= rs.total) {
+            if (rs.phase === 'decommissioning') {
+              const installSku = RACK_SKU_CONFIGS[rs.toSkuId];
+              const installTotal = cohortStageTotal('installation', rs.toSkuId, rs.racksRemaining);
+              return {
+                ...dc,
+                computeRacksOnline: 0,
+                computeRacksFailed: 0,
+                rackSkuId: rs.toSkuId,
+                deploymentCohorts: [{
+                  id: `retrofit-${dc.id}-${Date.now()}`,
+                  count: rs.racksRemaining,
+                  skuId: rs.toSkuId,
+                  stage: 'installation' as PipelineStage,
+                  stageProgress: 0,
+                  stageTotal: installTotal,
+                  repairCount: 0,
+                }],
+                retrofitState: {
+                  ...rs,
+                  phase: 'installing' as const,
+                  progress: 0,
+                  total: installTotal,
+                },
+                networkHealth: computeNetworkHealth(0),
+                effectiveComputeRacks: 0,
+                usedSlots: 0,
+                usedPowerKW: 0,
+                currentUptime: 0,
+                energyCostPerTick: DC_TIER_CONFIGS[dc.tier].baseEnergyCostPerTick * LOCATION_CONFIGS[cluster.locationId].energyCostMultiplier,
+                maintenanceCostPerTick: 0,
+              };
+            } else {
+              notifications.push({
+                title: 'Retrofit Complete',
+                message: `${dc.name} retrofit to ${RACK_SKU_CONFIGS[rs.toSkuId].name} is complete!`,
+                type: 'success',
+              });
+              return {
+                ...dc,
+                status: 'operational' as const,
+                retrofitState: null,
+              };
+            }
+          }
+          return { ...dc, retrofitState: rs };
+        }
+
+        // Process deployment cohorts
+        const updatedCohorts: DeploymentCohort[] = [];
+        let racksJustOnlined = 0;
+        let racksFailedTesting = 0;
+
+        for (const cohort of dc.deploymentCohorts) {
+          const speed = stageSpeed(cohort.stage, engEff, opsEff);
+          const newProgress = cohort.stageProgress + speed;
+
+          if (newProgress < cohort.stageTotal) {
+            updatedCohorts.push({ ...cohort, stageProgress: newProgress });
+            continue;
+          }
+
+          if (cohort.stage === 'decommission') {
+            continue;
+          }
+
+          if (cohort.stage === 'repair') {
+            const testTotal = cohortStageTotal('testing', cohort.skuId, cohort.count);
+            updatedCohorts.push({
+              ...cohort,
+              stage: 'testing',
+              stageProgress: 0,
+              stageTotal: testTotal,
+            });
+            continue;
+          }
+
+          const next = nextStage(cohort.stage);
+
+          if (next === 'production') {
+            const sku = RACK_SKU_CONFIGS[cohort.skuId];
+            const effectiveFailRate = sku.testFailureRate
+              * (1 - dc.coolingLevel * COOLING_FAILURE_REDUCTION)
+              * (1 - opsEff * 0.2)
+              * (1 - qaResearchBonus);
+
+            const failed = binomialSample(cohort.count, effectiveFailRate);
+            const passed = cohort.count - failed;
+
+            racksJustOnlined += passed;
+
+            if (failed > 0) {
+              racksFailedTesting += failed;
+              const repairCost = sku.baseCost * sku.repairCostFraction * failed;
+              dcRepairCosts += repairCost;
+
+              updatedCohorts.push({
+                id: `repair-${cohort.id}`,
+                count: failed,
+                skuId: cohort.skuId,
+                stage: 'repair',
+                stageProgress: 0,
+                stageTotal: cohortStageTotal('repair', cohort.skuId, failed),
+                repairCount: cohort.repairCount + 1,
+              });
+            }
+          } else {
+            const total = cohortStageTotal(next, cohort.skuId, cohort.count);
+            updatedCohorts.push({
+              ...cohort,
+              stage: next,
+              stageProgress: 0,
+              stageTotal: total,
+            });
+          }
+        }
+
+        computeRacksOnline += racksJustOnlined;
+
+        if (racksFailedTesting > 0) {
+          const skuName = dc.rackSkuId ? RACK_SKU_CONFIGS[dc.rackSkuId].name : 'Unknown';
+          notifications.push({
+            title: 'Racks Failed Testing',
+            message: `${dc.name}: ${racksFailedTesting} ${skuName} rack${racksFailedTesting > 1 ? 's' : ''} failed QA — repair batch created.`,
+            type: 'warning',
+          });
+        }
+
+        if (racksJustOnlined > 0 && updatedCohorts.filter(c => c.stage !== 'repair').length === 0) {
+          notifications.push({
+            title: 'Deployment Complete',
+            message: `${dc.name}: all racks deployed and online!`,
+            type: 'success',
+          });
+        }
+
+        // Production failures (statistical)
+        if (computeRacksOnline > 0 && dc.rackSkuId) {
+          const sku = RACK_SKU_CONFIGS[dc.rackSkuId];
+          const effectiveRate = sku.productionFailureRate
+            * (1 - dc.coolingLevel * COOLING_FAILURE_REDUCTION)
+            * (1 - dc.redundancyLevel * REDUNDANCY_FAILURE_REDUCTION);
+
+          const prodFailures = binomialSample(computeRacksOnline, effectiveRate);
+          if (prodFailures > 0) {
+            computeRacksOnline -= prodFailures;
+            computeRacksFailed += prodFailures;
+            const repairCost = sku.baseCost * sku.repairCostFraction * prodFailures;
+            dcRepairCosts += repairCost;
+
+            updatedCohorts.push({
+              id: `prodfail-${dc.id}-${Date.now()}`,
+              count: prodFailures,
+              skuId: dc.rackSkuId,
+              stage: 'repair',
+              stageProgress: 0,
+              stageTotal: cohortStageTotal('repair', dc.rackSkuId, prodFailures),
+              repairCount: 0,
+            });
+
+            notifications.push({
+              title: 'Production Failure',
+              message: `${dc.name}: ${prodFailures} rack${prodFailures > 1 ? 's' : ''} failed in production — sent for repair.`,
+              type: 'danger',
+            });
+          }
+        }
+
+        repairCosts += dcRepairCosts;
+
+        // Network health
+        const baseNetworkHealth = computeNetworkHealth(computeRacksOnline);
+        const { networkHealth, racksDisconnected } = processNetworkFailures(
+          baseNetworkHealth, computeRacksOnline, networkResearchBonus,
+        );
+
+        if (racksDisconnected > 0) {
+          if (networkHealth.tier3Healthy < networkHealth.tier3Required) {
+            notifications.push({
+              title: 'Core Network Failure',
+              message: `${dc.name}: Tier-3 core switch failure — entire DC disconnected!`,
+              type: 'danger',
+            });
+          } else if (racksDisconnected >= NETWORK_TOPOLOGY.tier1BlastRadius * NETWORK_TOPOLOGY.tier2BlastRadiusMultiplier) {
+            notifications.push({
+              title: 'Network Switch Failure',
+              message: `${dc.name}: Tier-2 aggregation failure — ${racksDisconnected} racks disconnected.`,
+              type: 'warning',
+            });
+          }
+        }
+
+        const effectiveComputeRacks = computeRacksOnline - racksDisconnected;
+
+        // Compute aggregates for this DC
+        const location = LOCATION_CONFIGS[cluster.locationId];
+        const tierConfig = DC_TIER_CONFIGS[dc.tier];
+        const totalRacksInDc = computeRacksOnline + computeRacksFailed;
+        const netSlots = networkSlotsRequired(computeRacksOnline);
+        const pipelineRacks = updatedCohorts
+          .filter(c => c.stage !== 'decommission' && c.stage !== 'repair')
+          .reduce((sum, c) => sum + c.count, 0);
+        const usedSlots = totalRacksInDc + netSlots + pipelineRacks;
+
+        let usedPowerKW = 0;
+        let dcFlops = 0;
+        if (dc.rackSkuId && computeRacksOnline > 0) {
+          const sku = RACK_SKU_CONFIGS[dc.rackSkuId];
+          usedPowerKW = computeRacksOnline * sku.powerDrawKW;
+          dcFlops = effectiveComputeRacks * sku.flopsPerRack;
+        }
+
+        const energyCostPerTick = (tierConfig.baseEnergyCostPerTick + usedPowerKW * BASE_ENERGY_COST_PER_FLOP)
+          * location.energyCostMultiplier;
+        const maintenanceCostPerTick = totalRacksInDc * BASE_MAINTENANCE_PER_RACK;
+
+        const currentUptime = totalRacksInDc > 0 ? effectiveComputeRacks / totalRacksInDc : 1;
+
+        totalFlops += dcFlops;
+        totalRackCount += totalRacksInDc + netSlots;
+        totalComputeRackCount += totalRacksInDc;
+        totalDataCenterCount++;
+        if (totalRacksInDc > 0) {
+          totalUptime += currentUptime;
+          dcWithRacks++;
+        }
+
+        return {
+          ...dc,
+          computeRacksOnline,
+          computeRacksFailed,
+          deploymentCohorts: updatedCohorts,
+          networkHealth,
+          effectiveComputeRacks,
+          usedSlots,
+          usedPowerKW,
+          energyCostPerTick,
+          maintenanceCostPerTick,
+          currentUptime,
+        };
+      });
+
+      return { ...campus, dataCenters };
+    });
+
+    return { ...cluster, campuses };
+  });
 
   return {
     infrastructure: {
-      dataCenters,
-      rackPipeline,
+      clusters,
       totalFlops,
       totalUptime: dcWithRacks > 0 ? totalUptime / dcWithRacks : 1,
       totalRackCount,
+      totalComputeRackCount,
+      totalDataCenterCount,
     },
     notifications,
     repairCosts,