{"version":3,"file":"cache-proof.js","names":[],"sources":["../../src/server/cache-proof.ts"],"sourcesContent":["import type { AppRouteSemanticIds } from \"../routing/app-route-graph.js\";\nimport { fnv1a64 } from \"../utils/hash.js\";\n\nexport const CACHE_PROOF_MODEL_SCHEMA_VERSION = 0;\nexport type CacheProofModelSchemaVersion = 0;\n\nexport type CacheProofRejectionCode =\n  | \"CP_MODEL_DISABLED\"\n  | \"CP_DIMENSION_COUNT_EXCEEDED\"\n  | \"CP_DIMENSION_NAME_MISSING\"\n  | \"CP_DIMENSION_NAME_TOO_LONG\"\n  | \"CP_DIMENSION_VALUE_COUNT_EXCEEDED\"\n  | \"CP_DIMENSION_VALUE_TOO_LONG\"\n  | \"CP_DIMENSION_VALUES_MISSING\"\n  | \"CP_ENCODED_VARIANT_TOO_LONG\"\n  | \"CP_INVALID_VARIANT_BUDGET\"\n  | \"CP_ROUTE_VARIANT_CEILING_EXCEEDED\"\n  | \"CP_UNSAFE_PUBLIC_DIMENSION\"\n  | \"CP_BOUNDARY_OUTCOME_MISMATCH\"\n  | \"CP_BOUNDARY_OUTCOME_UNKNOWN\";\n\nexport type CacheProofTraceFieldValue = string | number | boolean | null | readonly string[];\n\nexport type CacheProofTraceFields = Readonly<Record<string, CacheProofTraceFieldValue>>;\n\nexport type CacheProofBreakerFallbackMode = \"renderFresh\" | \"privateUncacheable\";\nexport type CacheProofFallbackScope = \"affectedOutput\" | \"route\";\n\nexport type CacheProofBreakerFallback = Readonly<{\n  kind: \"breakerFallback\";\n  code: CacheProofRejectionCode;\n  mode: CacheProofBreakerFallbackMode;\n  scope: CacheProofFallbackScope;\n  fields: CacheProofTraceFields;\n}>;\n\nexport type CacheVariantBudget = Readonly<{\n  maxDimensionCount: number;\n  maxDimensionNameLength: number;\n  maxDimensionValueLength: number;\n  maxEncodedLength: number;\n  maxValuesPerDimension: number;\n  maxVariantsPerRoute: number;\n}>;\n\nexport const DEFAULT_CACHE_VARIANT_BUDGET = {\n  maxDimensionCount: 8,\n  maxDimensionNameLength: 64,\n  maxDimensionValueLength: 256,\n  maxEncodedLength: 1024,\n  maxValuesPerDimension: 8,\n  maxVariantsPerRoute: 64,\n} satisfies CacheVariantBudget;\n\nexport type CacheVariantDimensionSource =\n  | \"auth\"\n  | \"cookie\"\n  | \"custom\"\n  | \"draft-mode\"\n  | \"header\"\n  | \"interception\"\n  | \"mounted-slots\"\n  | \"params\"\n  | \"route\"\n  | \"search\"\n  | \"session\";\n\nexport type CacheVariantDimensionPrivacy = \"internal\" | \"private\" | \"public\";\n\nexport type CacheVariantDimensionInput = Readonly<{\n  name: string;\n  privacy: CacheVariantDimensionPrivacy;\n  source: CacheVariantDimensionSource;\n  values: readonly string[];\n}>;\n\nexport type CacheVariantDimension = Readonly<{\n  encoded: string;\n  name: string;\n  privacy: CacheVariantDimensionPrivacy;\n  source: CacheVariantDimensionSource;\n  valueCount: number;\n  valueHashes: readonly string[];\n}>;\n\nexport type CacheProofOutputScope =\n  | Readonly<{\n      kind: \"app-html\";\n      renderEpoch: string | null;\n      rootBoundaryId: string | null;\n      routeId: string;\n    }>\n  | Readonly<{\n      kind: \"app-rsc\";\n      mountedSlotsFingerprint: string | null;\n      renderEpoch: string | null;\n      rootBoundaryId: string | null;\n      routeId: string;\n    }>\n  | Readonly<{\n      kind: \"layout\";\n      layoutId: string;\n      rootBoundaryId: string | null;\n      routeId: string;\n    }>\n  | Readonly<{\n      kind: \"page\";\n      pageId: string;\n      rootBoundaryId: string | null;\n      routeId: string;\n    }>\n  | Readonly<{\n      kind: \"route-handler\";\n      routeHandlerId: string;\n      routeId: string;\n    }>\n  | Readonly<{\n      kind: \"slot\";\n      rootBoundaryId: string | null;\n      routeId: string;\n      slotId: string;\n    }>\n  | Readonly<{\n      kind: \"template\";\n      rootBoundaryId: string | null;\n      routeId: string;\n      templateId: string;\n    }>;\n\nexport type CacheVariant = Readonly<{\n  budget: CacheVariantBudget;\n  cacheKey: string;\n  dimensions: readonly CacheVariantDimension[];\n  encodedLength: number;\n  output: CacheProofOutputScope;\n  schemaVersion: CacheProofModelSchemaVersion;\n}>;\n\nexport type BuildCacheVariantInput = Readonly<{\n  budget: CacheVariantBudget;\n  dimensions: readonly CacheVariantDimensionInput[];\n  existingVariantCount: number;\n  output: CacheProofOutputScope;\n}>;\n\nexport type BuildCacheVariantResult =\n  | Readonly<{ kind: \"variant\"; variant: CacheVariant }>\n  | Readonly<{ kind: \"breakerFallback\"; fallback: CacheProofBreakerFallback }>;\n\nexport type AppRouteCacheProofGraphScopeInput = Readonly<{\n  ids: AppRouteSemanticIds;\n}>;\n\nexport type AppRouteCacheProofGraphScope = Readonly<{\n  layoutIds: readonly string[];\n  pageId: string | null;\n  routeHandlerId: string | null;\n  routeId: string;\n  slotIds: readonly string[];\n  templateIds: readonly string[];\n}>;\n\nexport type BoundaryOutcome =\n  | Readonly<{ kind: \"error\"; digest?: string }>\n  | Readonly<{ kind: \"forbidden\" }>\n  | Readonly<{ kind: \"globalError\"; digest?: string }>\n  | Readonly<{ kind: \"notFound\" }>\n  | Readonly<{ kind: \"redirect\"; location: string; status: number }>\n  | Readonly<{ kind: \"success\" }>\n  | Readonly<{ kind: \"unauthorized\" }>\n  | Readonly<{ kind: \"unknown\" }>;\n\nexport type BoundaryOutcomeCompatibility =\n  | Readonly<{\n      kind: \"compatible\";\n      outcome: BoundaryOutcome;\n      reason: \"CP_BOUNDARY_OUTCOME_MATCH\";\n    }>\n  | Readonly<{\n      candidate: BoundaryOutcome;\n      expected: BoundaryOutcome;\n      fallback: CacheProofBreakerFallback;\n      kind: \"incompatible\";\n    }>;\n\nexport type RenderObservationCompleteness = \"complete\" | \"partial\" | \"unknown\";\nexport type RenderCacheability = \"private\" | \"public\" | \"uncacheable\" | \"unknown\";\nexport type RenderRequestApiKind =\n  | \"connection\"\n  | \"cookies\"\n  | \"draftMode\"\n  | \"headers\"\n  | \"params\"\n  | \"searchParams\";\nexport type RenderRequestApiStatus = \"notObserved\" | \"observed\" | \"unknown\";\n\nexport type RenderRequestApiObservation = Readonly<{\n  kind: RenderRequestApiKind;\n  status: RenderRequestApiStatus;\n}>;\n\nexport type RenderObservation = Readonly<{\n  boundaryOutcome: BoundaryOutcome;\n  cacheTags: readonly string[];\n  cacheability: RenderCacheability;\n  completeness: RenderObservationCompleteness;\n  dynamicFetches: readonly string[];\n  output: CacheProofOutputScope;\n  pathTags: readonly string[];\n  requestApis: readonly RenderRequestApiObservation[];\n  schemaVersion: CacheProofModelSchemaVersion;\n}>;\n\nexport type BuildRenderObservationInput = Readonly<{\n  boundaryOutcome: BoundaryOutcome;\n  cacheTags: readonly string[];\n  cacheability: RenderCacheability;\n  completeness: RenderObservationCompleteness;\n  dynamicFetches: readonly string[];\n  output: CacheProofOutputScope;\n  pathTags: readonly string[];\n  requestApis: readonly RenderRequestApiObservation[];\n}>;\n\nexport type DisabledCacheProofDecision = Readonly<{\n  canReuse: false;\n  fallback: CacheProofBreakerFallback;\n  kind: \"disabled\";\n  observation: RenderObservation;\n  variant: CacheVariant;\n}>;\n\nexport type CreateDisabledCacheProofDecisionInput = Readonly<{\n  observation: RenderObservation;\n  variant: CacheVariant;\n}>;\n\nconst PUBLIC_UNSAFE_DIMENSION_SOURCES: ReadonlySet<CacheVariantDimensionSource> = new Set([\n  \"auth\",\n  \"cookie\",\n  \"draft-mode\",\n  \"header\",\n  \"session\",\n]);\n\ntype CacheVariantDimensionAccumulator = {\n  name: string;\n  privacy: CacheVariantDimensionPrivacy;\n  source: CacheVariantDimensionSource;\n  values: string[];\n};\n\ntype DimensionAccumulatorByName = Map<string, CacheVariantDimensionAccumulator>;\ntype DimensionAccumulatorByPrivacy = Map<CacheVariantDimensionPrivacy, DimensionAccumulatorByName>;\ntype DimensionAccumulatorBySource = Map<CacheVariantDimensionSource, DimensionAccumulatorByPrivacy>;\n\nfunction buildBreakerFallback(\n  code: CacheProofRejectionCode,\n  fields: CacheProofTraceFields = {},\n  mode: CacheProofBreakerFallbackMode = \"renderFresh\",\n  scope: CacheProofFallbackScope = \"affectedOutput\",\n): CacheProofBreakerFallback {\n  return {\n    kind: \"breakerFallback\",\n    code,\n    mode,\n    scope,\n    fields,\n  };\n}\n\nfunction sortedUnique(values: readonly string[]): string[] {\n  return [...new Set(values)].sort();\n}\n\nfunction normalizeDimensionName(name: string): string {\n  return name.trim().toLowerCase();\n}\n\nfunction redactValue(value: string): string {\n  return `h:${fnv1a64(value)}`;\n}\n\nfunction sortedUniqueRedacted(values: readonly string[]): string[] {\n  return sortedUnique(sortedUnique(values).map(redactValue));\n}\n\nfunction encodeParts(parts: readonly unknown[]): string {\n  return JSON.stringify(parts);\n}\n\nfunction compareDimensions(a: CacheVariantDimension, b: CacheVariantDimension): number {\n  return (\n    a.source.localeCompare(b.source) ||\n    a.name.localeCompare(b.name) ||\n    a.privacy.localeCompare(b.privacy)\n  );\n}\n\nfunction encodeNullable(value: string | null): string | null {\n  return value;\n}\n\nfunction assertNever(value: never): never {\n  throw new Error(`Unhandled cache proof variant: ${String(value)}`);\n}\n\nfunction encodeOutputScope(output: CacheProofOutputScope): string {\n  switch (output.kind) {\n    case \"app-html\":\n      return encodeParts([\n        output.kind,\n        output.routeId,\n        encodeNullable(output.rootBoundaryId),\n        encodeNullable(output.renderEpoch),\n      ]);\n    case \"app-rsc\":\n      return encodeParts([\n        output.kind,\n        output.routeId,\n        encodeNullable(output.rootBoundaryId),\n        encodeNullable(output.renderEpoch),\n        encodeNullable(output.mountedSlotsFingerprint),\n      ]);\n    case \"layout\":\n      return encodeParts([\n        output.kind,\n        output.routeId,\n        output.layoutId,\n        encodeNullable(output.rootBoundaryId),\n      ]);\n    case \"page\":\n      return encodeParts([\n        output.kind,\n        output.routeId,\n        output.pageId,\n        encodeNullable(output.rootBoundaryId),\n      ]);\n    case \"route-handler\":\n      return encodeParts([output.kind, output.routeId, output.routeHandlerId]);\n    case \"slot\":\n      return encodeParts([\n        output.kind,\n        output.routeId,\n        output.slotId,\n        encodeNullable(output.rootBoundaryId),\n      ]);\n    case \"template\":\n      return encodeParts([\n        output.kind,\n        output.routeId,\n        output.templateId,\n        encodeNullable(output.rootBoundaryId),\n      ]);\n    default:\n      return assertNever(output);\n  }\n}\n\nfunction validateBudgetNumber(name: string, value: number): CacheProofBreakerFallback | null {\n  if (Number.isInteger(value) && value >= 0) return null;\n  return buildBreakerFallback(\"CP_INVALID_VARIANT_BUDGET\", {\n    budgetField: name,\n  });\n}\n\nfunction validateBudget(budget: CacheVariantBudget): CacheProofBreakerFallback | null {\n  return (\n    validateBudgetNumber(\"maxDimensionCount\", budget.maxDimensionCount) ??\n    validateBudgetNumber(\"maxDimensionNameLength\", budget.maxDimensionNameLength) ??\n    validateBudgetNumber(\"maxDimensionValueLength\", budget.maxDimensionValueLength) ??\n    validateBudgetNumber(\"maxEncodedLength\", budget.maxEncodedLength) ??\n    validateBudgetNumber(\"maxValuesPerDimension\", budget.maxValuesPerDimension) ??\n    validateBudgetNumber(\"maxVariantsPerRoute\", budget.maxVariantsPerRoute)\n  );\n}\n\nfunction buildDimension(\n  input: CacheVariantDimensionInput,\n  budget: CacheVariantBudget,\n): CacheVariantDimension | CacheProofBreakerFallback {\n  const name = normalizeDimensionName(input.name);\n  if (name.length === 0) {\n    return buildBreakerFallback(\"CP_DIMENSION_NAME_MISSING\", {\n      source: input.source,\n    });\n  }\n  if (name.length > budget.maxDimensionNameLength) {\n    return buildBreakerFallback(\"CP_DIMENSION_NAME_TOO_LONG\", {\n      maxLength: budget.maxDimensionNameLength,\n      nameHash: redactValue(name),\n      source: input.source,\n    });\n  }\n  if (input.privacy === \"public\" && PUBLIC_UNSAFE_DIMENSION_SOURCES.has(input.source)) {\n    return buildBreakerFallback(\n      \"CP_UNSAFE_PUBLIC_DIMENSION\",\n      {\n        name,\n        source: input.source,\n      },\n      \"privateUncacheable\",\n    );\n  }\n\n  const values = sortedUnique(input.values);\n  if (values.length === 0) {\n    return buildBreakerFallback(\"CP_DIMENSION_VALUES_MISSING\", {\n      name,\n      source: input.source,\n    });\n  }\n  if (values.length > budget.maxValuesPerDimension) {\n    return buildBreakerFallback(\"CP_DIMENSION_VALUE_COUNT_EXCEEDED\", {\n      maxValues: budget.maxValuesPerDimension,\n      name,\n      source: input.source,\n      valueCount: values.length,\n    });\n  }\n  for (const value of values) {\n    if (value.length > budget.maxDimensionValueLength) {\n      return buildBreakerFallback(\"CP_DIMENSION_VALUE_TOO_LONG\", {\n        maxLength: budget.maxDimensionValueLength,\n        name,\n        source: input.source,\n        valueHash: redactValue(value),\n      });\n    }\n  }\n\n  const valueHashes = values.map(redactValue);\n  const encoded = encodeParts([input.source, input.privacy, name, valueHashes]);\n\n  return {\n    encoded,\n    name,\n    privacy: input.privacy,\n    source: input.source,\n    valueCount: valueHashes.length,\n    valueHashes,\n  };\n}\n\nfunction isCacheProofBreakerFallback(\n  value: CacheVariantDimension | CacheProofBreakerFallback,\n): value is CacheProofBreakerFallback {\n  return \"code\" in value;\n}\n\nfunction getDimensionBucket(\n  bySource: DimensionAccumulatorBySource,\n  source: CacheVariantDimensionSource,\n  privacy: CacheVariantDimensionPrivacy,\n): DimensionAccumulatorByName {\n  const existingByPrivacy = bySource.get(source);\n  const byPrivacy = existingByPrivacy ?? new Map();\n  if (!existingByPrivacy) {\n    bySource.set(source, byPrivacy);\n  }\n\n  const existingByName = byPrivacy.get(privacy);\n  const byName = existingByName ?? new Map();\n  if (!existingByName) {\n    byPrivacy.set(privacy, byName);\n  }\n\n  return byName;\n}\n\nfunction mergeDimensionInputs(\n  dimensions: readonly CacheVariantDimensionInput[],\n): CacheVariantDimensionInput[] {\n  const bySource: DimensionAccumulatorBySource = new Map();\n  const orderedDimensions: CacheVariantDimensionAccumulator[] = [];\n\n  for (const dimension of dimensions) {\n    const name = normalizeDimensionName(dimension.name);\n    const bucket = getDimensionBucket(bySource, dimension.source, dimension.privacy);\n    const existing = bucket.get(name);\n    if (existing) {\n      existing.values.push(...dimension.values);\n      continue;\n    }\n    const accumulator = {\n      name,\n      privacy: dimension.privacy,\n      source: dimension.source,\n      values: [...dimension.values],\n    };\n    bucket.set(name, accumulator);\n    orderedDimensions.push(accumulator);\n  }\n\n  return orderedDimensions;\n}\n\nexport function createAppRouteCacheProofGraphScope(\n  route: AppRouteCacheProofGraphScopeInput,\n): AppRouteCacheProofGraphScope {\n  return {\n    routeId: route.ids.route,\n    pageId: route.ids.page,\n    routeHandlerId: route.ids.routeHandler,\n    layoutIds: [...route.ids.layouts],\n    templateIds: [...route.ids.templates],\n    slotIds: sortedUnique(Object.values(route.ids.slots)),\n  };\n}\n\nexport function buildCacheVariant(input: BuildCacheVariantInput): BuildCacheVariantResult {\n  const budgetFallback = validateBudget(input.budget);\n  if (budgetFallback) {\n    return {\n      kind: \"breakerFallback\",\n      fallback: budgetFallback,\n    };\n  }\n  if (input.existingVariantCount >= input.budget.maxVariantsPerRoute) {\n    return {\n      kind: \"breakerFallback\",\n      fallback: buildBreakerFallback(\n        \"CP_ROUTE_VARIANT_CEILING_EXCEEDED\",\n        {\n          existingVariantCount: input.existingVariantCount,\n          maxVariantsPerRoute: input.budget.maxVariantsPerRoute,\n          routeId: input.output.routeId,\n        },\n        \"privateUncacheable\",\n        \"route\",\n      ),\n    };\n  }\n  const dimensionInputs = mergeDimensionInputs(input.dimensions);\n  if (dimensionInputs.length > input.budget.maxDimensionCount) {\n    return {\n      kind: \"breakerFallback\",\n      fallback: buildBreakerFallback(\"CP_DIMENSION_COUNT_EXCEEDED\", {\n        dimensionCount: dimensionInputs.length,\n        maxDimensionCount: input.budget.maxDimensionCount,\n        routeId: input.output.routeId,\n      }),\n    };\n  }\n\n  const dimensions: CacheVariantDimension[] = [];\n  for (const dimensionInput of dimensionInputs) {\n    const dimension = buildDimension(dimensionInput, input.budget);\n    if (isCacheProofBreakerFallback(dimension)) {\n      return {\n        kind: \"breakerFallback\",\n        fallback: dimension,\n      };\n    }\n    dimensions.push(dimension);\n  }\n  dimensions.sort(compareDimensions);\n\n  const encoded = [\n    `schema:${CACHE_PROOF_MODEL_SCHEMA_VERSION}`,\n    encodeOutputScope(input.output),\n    ...dimensions.map((dimension) => dimension.encoded),\n  ].join(\"|\");\n\n  if (encoded.length > input.budget.maxEncodedLength) {\n    return {\n      kind: \"breakerFallback\",\n      fallback: buildBreakerFallback(\"CP_ENCODED_VARIANT_TOO_LONG\", {\n        encodedHash: redactValue(encoded),\n        encodedLength: encoded.length,\n        maxEncodedLength: input.budget.maxEncodedLength,\n        routeId: input.output.routeId,\n      }),\n    };\n  }\n\n  return {\n    kind: \"variant\",\n    variant: {\n      schemaVersion: CACHE_PROOF_MODEL_SCHEMA_VERSION,\n      cacheKey: `cp0:${fnv1a64(encoded)}`,\n      output: input.output,\n      dimensions,\n      encodedLength: encoded.length,\n      budget: { ...input.budget },\n    },\n  };\n}\n\nfunction boundaryOutcomesMatch(expected: BoundaryOutcome, candidate: BoundaryOutcome): boolean {\n  switch (expected.kind) {\n    case \"error\":\n      return candidate.kind === \"error\" && (expected.digest ?? \"\") === (candidate.digest ?? \"\");\n    case \"forbidden\":\n      return candidate.kind === \"forbidden\";\n    case \"globalError\":\n      return (\n        candidate.kind === \"globalError\" && (expected.digest ?? \"\") === (candidate.digest ?? \"\")\n      );\n    case \"notFound\":\n      return candidate.kind === \"notFound\";\n    case \"redirect\":\n      return (\n        candidate.kind === \"redirect\" &&\n        expected.status === candidate.status &&\n        expected.location === candidate.location\n      );\n    case \"success\":\n      return candidate.kind === \"success\";\n    case \"unauthorized\":\n      return candidate.kind === \"unauthorized\";\n    case \"unknown\":\n      return false;\n    default:\n      return assertNever(expected);\n  }\n}\n\nexport function buildBoundaryOutcomeCompatibility(input: {\n  candidate: BoundaryOutcome;\n  expected: BoundaryOutcome;\n}): BoundaryOutcomeCompatibility {\n  if (input.expected.kind === \"unknown\" || input.candidate.kind === \"unknown\") {\n    return {\n      kind: \"incompatible\",\n      expected: input.expected,\n      candidate: input.candidate,\n      fallback: buildBreakerFallback(\"CP_BOUNDARY_OUTCOME_UNKNOWN\", {\n        candidateKind: input.candidate.kind,\n        expectedKind: input.expected.kind,\n      }),\n    };\n  }\n\n  if (boundaryOutcomesMatch(input.expected, input.candidate)) {\n    return {\n      kind: \"compatible\",\n      outcome: input.candidate,\n      reason: \"CP_BOUNDARY_OUTCOME_MATCH\",\n    };\n  }\n\n  return {\n    kind: \"incompatible\",\n    expected: input.expected,\n    candidate: input.candidate,\n    fallback: buildBreakerFallback(\"CP_BOUNDARY_OUTCOME_MISMATCH\", {\n      candidateKind: input.candidate.kind,\n      expectedKind: input.expected.kind,\n    }),\n  };\n}\n\nfunction requestApiStatusRank(status: RenderRequestApiStatus): number {\n  switch (status) {\n    case \"notObserved\":\n      return 0;\n    case \"unknown\":\n      return 1;\n    case \"observed\":\n      return 2;\n    default:\n      return assertNever(status);\n  }\n}\n\nfunction normalizeRequestApiObservations(\n  observations: readonly RenderRequestApiObservation[],\n): RenderRequestApiObservation[] {\n  const byKind = new Map<RenderRequestApiKind, RenderRequestApiStatus>();\n  for (const observation of observations) {\n    const current = byKind.get(observation.kind);\n    if (\n      current === undefined ||\n      requestApiStatusRank(observation.status) > requestApiStatusRank(current)\n    ) {\n      byKind.set(observation.kind, observation.status);\n    }\n  }\n\n  return [...byKind.entries()]\n    .sort(([left], [right]) => left.localeCompare(right))\n    .map(([kind, status]) => ({ kind, status }));\n}\n\nexport function buildRenderObservation(input: BuildRenderObservationInput): RenderObservation {\n  return {\n    schemaVersion: CACHE_PROOF_MODEL_SCHEMA_VERSION,\n    output: input.output,\n    completeness: input.completeness,\n    boundaryOutcome: input.boundaryOutcome,\n    requestApis: normalizeRequestApiObservations(input.requestApis),\n    dynamicFetches: sortedUniqueRedacted(input.dynamicFetches),\n    cacheTags: sortedUnique(input.cacheTags),\n    pathTags: sortedUnique(input.pathTags),\n    cacheability: input.cacheability,\n  };\n}\n\nexport function hasCompleteNegativeRequestApiProof(\n  observation: RenderObservation,\n  requiredApis: readonly RenderRequestApiKind[],\n): boolean {\n  if (observation.completeness !== \"complete\") return false;\n\n  const statuses = new Map<RenderRequestApiKind, RenderRequestApiStatus>();\n  for (const requestApi of observation.requestApis) {\n    statuses.set(requestApi.kind, requestApi.status);\n  }\n\n  for (const api of requiredApis) {\n    if (statuses.get(api) !== \"notObserved\") return false;\n  }\n  return true;\n}\n\nexport function createDisabledCacheProofDecision(\n  input: CreateDisabledCacheProofDecisionInput,\n): DisabledCacheProofDecision {\n  return {\n    kind: \"disabled\",\n    canReuse: false,\n    variant: input.variant,\n    observation: input.observation,\n    fallback: buildBreakerFallback(\"CP_MODEL_DISABLED\"),\n  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