import api from './client'

export interface RenderLog {
  renderer: string
  format?: string
  engine?: string
  engine_used?: string
  samples?: number
  cycles_device?: string
  stl_quality?: string
  smooth_angle?: number
  width?: number
  height?: number
  total_duration_s?: number
  stl_duration_s?: number
  render_duration_s?: number
  stl_size_bytes?: number
  output_size_bytes?: number
  parts_count?: number
  log_lines?: string[]
  fallback?: boolean
  started_at?: string
  completed_at?: string
}

export interface CadActivityEntry {
  cad_file_id: string
  original_name: string
  file_size: number | null
  processing_status: 'pending' | 'processing' | 'completed' | 'failed' | string
  error_message: string | null
  updated_at: string
  created_at: string
  order_numbers: string[]
  render_log: RenderLog | null
}

export interface RenderJobEntry {
  order_line_id: string
  order_id: string | null
  order_number: string | null
  product_name: string | null
  output_type_name: string | null
  render_status: 'processing' | 'completed' | 'failed' | string
  render_backend_used: string | null
  render_started_at: string | null
  render_completed_at: string | null
  updated_at: string
}

export interface WorkerActivity {
  cad_processing: CadActivityEntry[]
  active_count: number
  failed_count: number
  render_jobs: RenderJobEntry[]
  render_active_count: number
  render_failed_count: number
}

export async function getWorkerActivity(): Promise<WorkerActivity> {
  const res = await api.get<WorkerActivity>('/worker/activity')
  return res.data
}

export async function reprocessCadFile(cad_file_id: string): Promise<void> {
  await api.post(`/worker/activity/${cad_file_id}/reprocess`)
}

export interface RenderLogEntry {
  ts: number
  t: string
  level: 'info' | 'error' | 'success' | string
  msg: string
}

export async function getRenderLog(orderLineId: string, after: number = 0): Promise<{
  entries: RenderLogEntry[]
  total: number
  next_after: number
}> {
  const res = await api.get(`/worker/render-log/${orderLineId}`, { params: { after } })
  return res.data
}

/** Returns the SSE URL for streaming render logs (needs token in query param). */
export function renderLogStreamUrl(orderLineId: string): string {
  return `/api/worker/render-log/${orderLineId}/stream`
}

// ---------------------------------------------------------------------------
// Queue inspection + control
// ---------------------------------------------------------------------------

export interface QueueTask {
  task_id: string
  task_name: string
  args: unknown[]
  argsrepr: string
  status: 'pending' | 'active' | 'reserved'
  worker?: string
  queue?: string
}

export interface QueueStatus {
  queue_depths: Record<string, number>
  pending_count: number
  active: QueueTask[]
  reserved: QueueTask[]
  pending: QueueTask[]
}

export async function getQueueStatus(): Promise<QueueStatus> {
  const res = await api.get<QueueStatus>('/worker/queue')
  return res.data
}

export async function purgeQueue(): Promise<{ purged: number; message: string }> {
  const res = await api.post<{ purged: number; message: string }>('/worker/queue/purge')
  return res.data
}

export async function cancelTask(taskId: string): Promise<{ revoked: string }> {
  const res = await api.post<{ revoked: string }>(`/worker/queue/cancel/${taskId}`)
  return res.data
}

// ---------------------------------------------------------------------------
// Worker management
// ---------------------------------------------------------------------------

export interface CeleryWorkerTask {
  name: string
  id: string
}

export interface CeleryWorker {
  name: string
  queues: string[]
  active_task_count: number
  active_tasks: CeleryWorkerTask[]
  total_tasks_processed: Record<string, number>
}

export interface CeleryWorkersResponse {
  workers: CeleryWorker[]
  error?: string
}

export interface ScaleRequest {
  service: 'render-worker' | 'worker' | 'worker-thumbnail'
  count: number
}

export interface ScaleResponse {
  service: string
  count: number
  status: string
}

export async function getCeleryWorkers(): Promise<CeleryWorkersResponse> {
  const res = await api.get<CeleryWorkersResponse>('/worker/celery-workers')
  return res.data
}

export async function scaleWorkers(req: ScaleRequest): Promise<ScaleResponse> {
  const res = await api.post<ScaleResponse>('/worker/scale', req)
  return res.data
}

// ---------------------------------------------------------------------------
// Worker concurrency configuration
// ---------------------------------------------------------------------------

export interface WorkerConfig {
  queue_name: string
  max_concurrency: number
  min_concurrency: number
  enabled: boolean
  updated_at: string
}

export interface WorkerConfigUpdate {
  max_concurrency?: number
  min_concurrency?: number
  enabled?: boolean
}

export async function getWorkerConfigs(): Promise<WorkerConfig[]> {
  const res = await api.get<WorkerConfig[]>('/worker/configs')
  return res.data
}

export async function updateWorkerConfig(
  queueName: string,
  update: WorkerConfigUpdate,
): Promise<WorkerConfig> {
  const res = await api.put<WorkerConfig>(`/worker/configs/${queueName}`, update)
  return res.data
}