import { apiFetch, type ApiSettings } from "@govoplan/core-webui";

export type OpsCheck = {
  id: string;
  label: string;
  state: "ok" | "warning" | "error" | string;
  detail: string;
  readiness_critical?: boolean;
  metrics?: Record<string, unknown>;
};

export type OpsDeploymentProfile = {
  id: string;
  name: string;
  current: boolean;
  components: string[];
  fit: string;
};

export type OpsSizingAssumption = {
  area: string;
  baseline: string;
  scale_trigger: string;
  operator_note: string;
};

export type OpsGovernanceModule = {
  module_id: string;
  name: string;
  version: string;
  permission_count: number;
  role_template_count: number;
  capability_count: number;
  policy_count: number;
  documentation_count: number;
  documentation_provider_count: number;
  access_control_count: number;
  search_provider_count: number;
  migration_managed: boolean;
  architecture?: {
    contract_version: string;
    layer: string;
    kind: string;
    maturity: string;
    known_limits: string[];
    supported_authority_modes: string[];
    owned_concepts: string[];
    non_owned_concepts: string[];
    evidence: Array<{ kind: string; reference: string; summary: string }>;
  } | null;
  external_provider_count: number;
  external_providers: Array<{
    id: string;
    label: string;
    maturity: string;
    authority_modes: string[];
    operations: string[];
    behavior: { outage?: string | null };
    runtime_state?: {
      configured: boolean;
      active: boolean;
      authority_mode?: string | null;
      authority_modes?: string[];
      health: string;
      freshness: string;
      conflict: string;
      recovery: string;
      observed_at: string;
      last_success_at?: string | null;
      bindings?: Array<{
        binding_ref: string;
        authority_mode: string;
        active: boolean;
        health: string;
        freshness: string;
        conflict: string;
        recovery: string;
      }>;
    } | null;
  }>;
};

export type OpsRuntimeNode = {
  node_id: string;
  incarnation: string;
  role: string;
  software_version: string;
  composition_hash: string;
  queues: string[];
  state: "active" | "draining" | "stopped" | string;
  started_at: string;
  last_heartbeat_at: string;
  drain_requested_at?: string | null;
  drain_reason?: string | null;
  stopped_at?: string | null;
  stale: boolean;
};

export type OpsRecoveryOperation = {
  id: string;
  module_id: string;
  operation_type: string;
  resource_type?: string | null;
  resource_id?: string | null;
  mode: string;
  status: string;
  checkpoint_count: number;
  evidence_head_sha256?: string | null;
  failure_summary?: string | null;
  updated_at: string;
};

export type OpsRuntimeCluster = {
  available: boolean;
  detail: string;
  installation_id?: string;
  state_profile: string;
  expected?: { api: number; worker: number };
  active?: { api: number; worker: number };
  composition?: {
    expected_hash?: string | null;
    active_hashes: string[];
    unexpected_nodes: string[];
    skewed: boolean;
  };
  software_versions?: {
    active: string[];
    skewed: boolean;
  };
  queues?: {
    expected: string[];
    active: string[];
    missing: string[];
    worker_pools: string[];
  };
  nodes: OpsRuntimeNode[];
  recovery: {
    operations: OpsRecoveryOperation[];
    requires_attention: number;
  };
};

export type OpsStatus = {
  summary: {
    app_env: string;
    active_profile: string;
    module_count: number;
    celery_enabled: boolean;
    celery_queues: string[];
    redis_url: string;
    maintenance_mode: {
      enabled: boolean;
      message?: string | null;
    };
    database_url: string;
    database_connection_peak?: number | null;
    database_connection_available?: number | null;
    file_storage_backend: string;
    worker_metrics: {
      workers?: number;
      active_tasks?: number;
      expected_queues?: string[];
      active_queues?: string[];
      missing_queues?: string[];
      queue_depths?: Record<string, number>;
    };
    operational_probe_count: number;
    runtime_node_count: number;
    recovery_required_count: number;
  };
  readiness: {
    ready: boolean;
    profile: string;
    blockers: Array<{
      id: string;
      label: string;
      state: string;
      detail: string;
    }>;
  };
  checks: OpsCheck[];
  governance: {
    summary: {
      module_count: number;
      permission_count: number;
      role_template_count: number;
      capability_count: number;
      policy_count: number;
      documented_module_count: number;
      access_control_count: number;
      search_provider_count: number;
      migration_module_count: number;
      architecture_declared_module_count: number;
      external_provider_count: number;
      configured_external_provider_count: number;
      provider_attention_count: number;
      supported_module_count: number;
    };
    modules: OpsGovernanceModule[];
  };
  deployment_profiles: OpsDeploymentProfile[];
  sizing: OpsSizingAssumption[];
  runtime_cluster: OpsRuntimeCluster;
};

export function fetchOpsStatus(settings: ApiSettings): Promise<OpsStatus> {
  return apiFetch(settings, "/api/v1/ops/status");
}

export function runOpsChecks(settings: ApiSettings): Promise<OpsStatus> {
  return apiFetch(settings, "/api/v1/ops/checks/run", { method: "POST" });
}

export function drainRuntimeNode(
  settings: ApiSettings,
  nodeId: string,
  reason = "operator request"
): Promise<{ node_id: string; state: string; drain_reason: string }> {
  return apiFetch(
    settings,
    `/api/v1/ops/runtime/nodes/${encodeURIComponent(nodeId)}/drain`,
    {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({ reason })
    }
  );
}

export function cancelRuntimeNodeDrain(
  settings: ApiSettings,
  nodeId: string
): Promise<{ node_id: string; state: string }> {
  return apiFetch(
    settings,
    `/api/v1/ops/runtime/nodes/${encodeURIComponent(nodeId)}/drain`,
    { method: "DELETE" }
  );
}