export type SecurityControlStatus = "ready" | "degraded";

export type SecurityControlPlaneSummary = {
  source_count: number;
  ready_source_count: number;
  unavailable_source_count: number;
  managed_asset_count: number;
  expected_asset_type_count: number;
  present_asset_type_count: number;
  asset_type_coverage_percent: number;
  scope_count: number;
  controlled_scope_count: number;
  unowned_asset_count: number;
  stale_asset_count: number;
  orphan_asset_count: number;
  relationship_count: number;
  automation_coverage_green_percent: number;
  automation_coverage_unknown_count: number;
  compliance_violation_count: number;
  compliance_unknown_count: number;
  nist_controlled_percent: number;
  security_program_domain_count: number;
  security_program_controlled_domain_count: number;
  security_program_controlled_percent: number;
  siem_stage_count: number;
  siem_observed_stage_count: number;
  siem_stage_coverage_percent: number;
  ai_loop_stage_count: number;
  ai_loop_observed_stage_count: number;
  ai_loop_stage_coverage_percent: number;
  verified_remediation_receipt_count_24h: number;
  active_work_item_count: number;
};

export type SecurityControlPlaneFunction = {
  function_id: string;
  label: string;
  controlled_percent: number;
  status: string;
};

export type SecurityControlPlaneStage = {
  stage_id: string;
  label: string;
  status: "observed" | "missing";
  evidence_count_24h?: number;
  receipt_count_24h?: number;
};

export type SecurityControlPlaneScope = {
  scope_id: string;
  label: string;
  managed_asset_count: number;
  expected_type_count: number;
  present_type_count: number;
  missing_type_count: number;
  type_coverage_percent: number;
  status: string;
};

export type SecurityControlPlaneWorkItem = {
  work_item_id: string;
  priority: string;
  control_id: string;
  title: string;
  gap_count: number;
  status: string;
  next_action: string;
};

export type SecurityAssetControlPlanePayload = {
  schema_version: "iwooos_security_asset_control_plane_v1";
  generated_at: string;
  status: SecurityControlStatus;
  source_status: string;
  reason_code?: string;
  summary: SecurityControlPlaneSummary;
  discovery: {
    latest_status: string;
    latest_success_at: string | null;
    age_seconds: number | null;
    freshness_slo_seconds: number;
    fresh: boolean;
  };
  asset_scopes: SecurityControlPlaneScope[];
  nist_csf_functions: SecurityControlPlaneFunction[];
  security_program_domains: Array<{
    domain_id: string;
    label: string;
    controlled_percent: number;
    status: string;
    evidence_count: number;
    gap_code: string | null;
  }>;
  siem: {
    pipeline: SecurityControlPlaneStage[];
    incident_total_24h?: number;
    open_incident_count_24h?: number;
    resolved_incident_count_24h?: number;
    noisy_rule_count?: number;
    mean_time_to_resolve_minutes_24h?: number | null;
  };
  ai_automation: {
    stages: SecurityControlPlaneStage[];
    aggregate_stage_coverage_percent: number;
    accepted_ai_trace_count: number;
    verified_remediation_receipt_count: number;
    rollback_receipt_count: number;
    failed_operation_count: number;
    same_run_closed_loop_proven: boolean;
    same_run_closed_loop_count: number;
  };
  security_audit: {
    k8s_execution_audit_count_24h: number;
    k8s_execution_failure_count_24h: number;
    mcp_tool_audit_count_24h: number;
    mcp_tool_failure_count_24h: number;
    asset_change_event_count_24h: number;
    automation_operation_count_24h: number;
    automation_failure_count_24h: number;
    ai_trace_count_24h: number;
    accepted_ai_trace_count_24h: number;
    immutable_external_audit_store_evidenced: boolean;
  };
  source_health: Array<{
    source_id: string;
    status: "ready" | "unavailable";
    reason_code: string | null;
  }>;
  work_items: SecurityControlPlaneWorkItem[];
  boundaries: {
    aggregate_only: boolean;
    raw_asset_identity_returned: boolean;
    raw_event_payload_returned: boolean;
    secret_value_collection_allowed: boolean;
    live_scan_triggered: boolean;
    runtime_action_triggered: boolean;
    completion_requires_same_run_receipts: boolean;
  };
};

function isRecord(value: unknown): value is Record<string, unknown> {
  return typeof value === "object" && value !== null && !Array.isArray(value);
}

export function isSecurityAssetControlPlanePayload(
  value: unknown
): value is SecurityAssetControlPlanePayload {
  if (!isRecord(value)) return false;
  if (value.schema_version !== "iwooos_security_asset_control_plane_v1") return false;
  if (!isRecord(value.summary) || !isRecord(value.boundaries)) return false;
  if (
    !Array.isArray(value.asset_scopes) ||
    !Array.isArray(value.nist_csf_functions) ||
    !Array.isArray(value.security_program_domains)
  ) {
    return false;
  }
  if (!isRecord(value.siem) || !Array.isArray(value.siem.pipeline)) return false;
  if (!isRecord(value.ai_automation) || !Array.isArray(value.ai_automation.stages)) {
    return false;
  }
  return (
    typeof value.summary.managed_asset_count === "number" &&
    typeof value.summary.source_count === "number" &&
    Array.isArray(value.source_health) &&
    typeof value.summary.nist_controlled_percent === "number" &&
    value.boundaries.aggregate_only === true &&
    value.boundaries.raw_asset_identity_returned === false &&
    value.boundaries.raw_event_payload_returned === false &&
    value.boundaries.secret_value_collection_allowed === false &&
    value.boundaries.live_scan_triggered === false &&
    value.boundaries.runtime_action_triggered === false
  );
}

export type SecurityControlPlaneTone = "healthy" | "warning" | "critical";

export function securityControlPlaneTone(
  payload: SecurityAssetControlPlanePayload
): SecurityControlPlaneTone {
  if (payload.status !== "ready" || !payload.discovery.fresh) return "critical";
  if (
    payload.summary.compliance_violation_count > 0 ||
    payload.summary.nist_controlled_percent < 50 ||
    payload.summary.siem_stage_coverage_percent < 50 ||
    payload.summary.ai_loop_stage_coverage_percent < 50
  ) {
    return "critical";
  }
  if (
    payload.summary.unowned_asset_count > 0 ||
    payload.summary.orphan_asset_count > 0 ||
    payload.summary.automation_coverage_unknown_count > 0 ||
    payload.summary.compliance_unknown_count > 0 ||
    !payload.ai_automation.same_run_closed_loop_proven
  ) {
    return "warning";
  }
  return "healthy";
}

export function topSecurityControlPlaneWorkItems(
  payload: SecurityAssetControlPlanePayload,
  limit = 3
): SecurityControlPlaneWorkItem[] {
  const rank: Record<string, number> = { P0: 0, P1: 1, P2: 2, P3: 3 };
  return [...payload.work_items]
    .sort(
      (left, right) =>
        (rank[left.priority] ?? 99) - (rank[right.priority] ?? 99) ||
        left.work_item_id.localeCompare(right.work_item_id)
    )
    .slice(0, Math.max(0, limit));
}