atc-agents/ui/src/lib/api.ts

import type {
  PresentationData,
  Agent,
  Approval,
  CdcChange,
  CdcStats,
  FeedEntry,
  GpuStatus,
  StatusData,
  TerminalLine,
  WorkloadData,
} from '../types'

async function fetchJson<T>(url: string, timeoutMs = 10000): Promise<T | null> {
  const ctrl = new AbortController()
  const timer = setTimeout(() => ctrl.abort(), timeoutMs)
  try {
    const r = await fetch(url, { signal: ctrl.signal })
    if (!r.ok) return null
    return (await r.json()) as T
  } catch {
    return null
  } finally {
    clearTimeout(timer)
  }
}

export async function fetchAgents() {
  const j = await fetchJson<{ agents?: Agent[] }>('/api/agents', 8000)
  return j?.agents || []
}

export async function fetchStatus() {
  return (await fetchJson<StatusData>('/api/status', 8000)) as StatusData
}

export async function fetchFeed() {
  const j = await fetchJson<{ entries?: FeedEntry[] }>('/api/feed', 8000)
  return j?.entries || []
}

export async function fetchApprovals() {
  const j = await fetchJson<{ approvals?: Approval[] }>('/api/approvals', 8000)
  return j?.approvals || []
}

export async function fetchApprovalHistory(status: string = 'pending') {
  const j = await fetchJson<{
    approvals?: Approval[]
    stats?: { pending: number; approved: number; denied: number; total: number }
  }>(`/api/approvals?status=${encodeURIComponent(status)}&limit=200`, 8000)
  return { approvals: j?.approvals || [], stats: j?.stats }
}

export async function fetchGpu(): Promise<GpuStatus | null> {
  return fetchJson<GpuStatus>('/api/gpu', 8000)
}

export async function fetchTerminals(): Promise<Record<string, TerminalLine[]>> {
  const j = await fetchJson<{ terminals?: Record<string, TerminalLine[]> }>('/api/terminals', 8000)
  return j?.terminals || {}
}

export async function fetchWorkload(): Promise<WorkloadData | null> {
  return fetchJson<WorkloadData>('/api/workload?fast=true', 25000)
}

export async function fetchNodeDetail(nodeId: string) {
  const j = await fetchJson<Record<string, unknown>>(`/api/nodes/${nodeId}`, 15000)
  return j || { error: 'timeout' }
}

export function probeNode(nodeId: string) {
  return fetch(`/api/nodes/${nodeId}/probe`, { method: 'POST' })
}

export function askNode(nodeId: string, message: string) {
  return fetch(`/api/nodes/${nodeId}/ask`, {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ message }),
  })
}

export function sendPrompt(message: string, agentId?: string) {
  return fetch('/api/prompt', {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ message, agent_id: agentId || undefined }),
  })
}

export async function fetchPresentation(): Promise<PresentationData | null> {
  return fetchJson<PresentationData>('/api/presentation', 60000)
}

export async function fetchChanges(opts: { source?: string; op?: string; limit?: number } = {}) {
  const p = new URLSearchParams()
  if (opts.source) p.set('source', opts.source)
  if (opts.op) p.set('op', opts.op)
  p.set('limit', String(opts.limit ?? 150))
  const j = await fetchJson<{ changes?: CdcChange[]; connected?: boolean; consumed?: number }>(
    `/api/changes?${p.toString()}`, 8000,
  )
  return { changes: j?.changes || [], connected: !!j?.connected, consumed: j?.consumed || 0 }
}

export async function fetchChangeStats(minutes = 15): Promise<CdcStats | null> {
  return fetchJson<CdcStats>(`/api/changes/stats?minutes=${minutes}`, 8000)
}

export async function fetchAgentOpsStatus() {
  return fetchJson<Record<string, unknown>>('/api/agent-ops/status', 8000)
}

export function toggleAgentOps(enabled?: boolean) {
  return fetch('/api/agent-ops/toggle', {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify(enabled === undefined ? {} : { enabled }),
  })
}

export function runAgentOpOnce(source?: string, op?: string) {
  return fetch('/api/agent-ops/run-once', {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ source, op }),
  })
}

export async function decideApproval(id: string, approved: boolean, decidedBy: string, note: string) {
  return fetch(`/api/approvals/${id}/decide`, {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ approved, decided_by: decidedBy, note }),
  })
}