import { apiFetch } from "./auth";

export interface AdminDashboardStats {
  activeUsers: number;
  totalServers: number;
  runningServers: number;
  queueLength: number;
  onlineNodes: number;
  failedJobs24h: number;
  openAbuseReports: number;
  openTickets: number;
  generatedAt: string;
}

export interface AdminUser {
  id: string;
  email: string;
  username: string;
  displayName: string | null;
  status: string;
  roles: string[];
  twoFactorEnabled: boolean;
  sessionCount: number;
  serverCount: number;
  createdAt: string;
}

export interface AdminJob {
  id: string;
  queue: string;
  jobName: string;
  status: string;
  attempts: number;
  error: string | null;
  startedAt: string | null;
  completedAt: string | null;
  createdAt: string;
}

export interface AdminAuditEvent {
  id: string;
  action: string;
  entityType: string | null;
  entityId: string | null;
  metadata: unknown;
  ipAddress: string | null;
  createdAt: string;
  user: { id: string; email: string; username: string } | null;
}

export interface GameNodeSummary {
  id: string;
  name: string;
  hostname: string;
  status: string;
  maxServers: number;
  maxRamMb: number;
  platformRamMb: number;
  activeServers: number;
  reservedRamMb: number;
  availableRamMb: number;
  lastHeartbeatAt: string | null;
  agentVersion: string | null;
  drainRequestedAt: string | null;
  createdAt: string;
}

export async function getAdminDashboardStats(): Promise<AdminDashboardStats> {
  return apiFetch<AdminDashboardStats>("/admin/dashboard");
}

export async function listAdminNodes(): Promise<{ nodes: GameNodeSummary[] }> {
  return apiFetch<{ nodes: GameNodeSummary[] }>("/admin/nodes");
}

export async function drainAdminNode(nodeId: string): Promise<GameNodeSummary> {
  return apiFetch<GameNodeSummary>(`/admin/nodes/${nodeId}/drain`, {
    method: "POST",
  });
}

export async function setAdminNodeMaintenance(
  nodeId: string,
  enabled: boolean,
): Promise<GameNodeSummary> {
  return apiFetch<GameNodeSummary>(`/admin/nodes/${nodeId}/maintenance`, {
    method: "POST",
    body: JSON.stringify({ enabled }),
  });
}

export async function searchAdminUsers(params?: {
  q?: string;
  limit?: number;
}): Promise<{ users: AdminUser[] }> {
  const search = new URLSearchParams();
  if (params?.q) search.set("q", params.q);
  if (params?.limit) search.set("limit", String(params.limit));
  const query = search.toString();
  return apiFetch<{ users: AdminUser[] }>(
    `/admin/users${query ? `?${query}` : ""}`,
  );
}

export async function suspendAdminUser(userId: string): Promise<{ id: string; status: string }> {
  return apiFetch<{ id: string; status: string }>(`/admin/users/${userId}/suspend`, {
    method: "POST",
  });
}

export async function unsuspendAdminUser(userId: string): Promise<{ id: string; status: string }> {
  return apiFetch<{ id: string; status: string }>(`/admin/users/${userId}/unsuspend`, {
    method: "POST",
  });
}

export async function listAdminJobs(params?: {
  limit?: number;
  status?: string;
  queue?: string;
}): Promise<{ jobs: AdminJob[] }> {
  const search = new URLSearchParams();
  if (params?.limit) search.set("limit", String(params.limit));
  if (params?.status) search.set("status", params.status);
  if (params?.queue) search.set("queue", params.queue);
  const query = search.toString();
  return apiFetch<{ jobs: AdminJob[] }>(`/admin/jobs${query ? `?${query}` : ""}`);
}

export async function listAdminAuditEvents(params?: {
  limit?: number;
  cursor?: string;
  action?: string;
}): Promise<{ items: AdminAuditEvent[]; nextCursor: string | null }> {
  const search = new URLSearchParams();
  if (params?.limit) search.set("limit", String(params.limit));
  if (params?.cursor) search.set("cursor", params.cursor);
  if (params?.action) search.set("action", params.action);
  const query = search.toString();
  return apiFetch<{ items: AdminAuditEvent[]; nextCursor: string | null }>(
    `/admin/audit${query ? `?${query}` : ""}`,
  );
}