import { request } from '../../lib/api'
import type { RRequisition, RRequisitionDetail, RRequisitionList } from '../../lib/types'

const NS = '/recruiting'

const body = (v: unknown) => ({ body: JSON.stringify(v) })

export const requisitionsApi = {
  list: (p: { client_id?: string; status?: string; owner?: string; q?: string; limit?: number; offset?: number }) => {
    const s = new URLSearchParams()
    if (p.client_id) s.set('client_id', p.client_id)
    if (p.status) s.set('status', p.status)
    if (p.owner) s.set('owner', p.owner)
    if (p.q) s.set('q', p.q)
    if (p.limit) s.set('limit', String(p.limit))
    if (p.offset) s.set('offset', String(p.offset))
    const qs = s.toString()
    return request<RRequisitionList>(`${NS}/requisitions${qs ? `?${qs}` : ''}`)
  },
  get: (id: string) => request<RRequisitionDetail>(`${NS}/requisitions/${encodeURIComponent(id)}`),
  create: (v: Record<string, unknown>) => request<RRequisition>(`${NS}/requisitions`, { method: 'POST', ...body(v) }),
  update: (id: string, v: Record<string, unknown>) =>
    request<RRequisition>(`${NS}/requisitions/${encodeURIComponent(id)}`, { method: 'PATCH', ...body(v) }),
  // Status is its own endpoint, not a PATCH field. It moves clocks and writes history, and the server
  // decides from the transition graph whether the move is legal at all.
  changeStatus: (id: string, v: { expected_updated_at: string; status: string; note?: string }) =>
    request<RRequisition>(`${NS}/requisitions/${encodeURIComponent(id)}/status`, { method: 'POST', ...body(v) }),
  claim: (id: string) => request<RRequisition>(`${NS}/requisitions/${encodeURIComponent(id)}/claim`, { method: 'POST' }),
  release: (id: string) =>
    request<RRequisition>(`${NS}/requisitions/${encodeURIComponent(id)}/release`, { method: 'POST' }),
}