import type { BulkLookupJobDetail, BulkLookupJobSummary } from '../types';

const API_BASE_URL = import.meta.env.VITE_API_BASE_URL ?? '/api/pots-shutdown';

let adminApiKey: string | null = null;

export function setAdminApiKey(value: string) {
  const trimmed = value.trim();
  adminApiKey = trimmed ? trimmed : null;
}

export function clearAdminApiKey() {
  adminApiKey = null;
}

export function getAdminApiKey() {
  return adminApiKey;
}

async function request<T>(path: string, init?: RequestInit): Promise<T> {
  const isAdminRequest = path.startsWith('/admin/') || path.startsWith('/ai/');
  const isFormData = init?.body instanceof FormData;
  const response = await fetch(`${API_BASE_URL}${path}`, {
    headers: {
      ...(!isFormData ? { 'Content-Type': 'application/json' } : {}),
      ...(isAdminRequest && adminApiKey ? { 'X-Admin-Key': adminApiKey } : {}),
      ...(init?.headers ?? {}),
    },
    ...init,
  });
  if (!response.ok) {
    throw new Error(`Request failed: ${response.status}`);
  }
  return response.json() as Promise<T>;
}

function bulkLookupDownloadUrl(id: number): string {
  const path = `${API_BASE_URL}/bulk-lookup/jobs/${id}/download`;
  return new URL(path, window.location.origin).toString();
}

export const apiClient = {
  get: <T,>(path: string) => request<T>(path),
  post: <T,>(path: string, body?: unknown) =>
    request<T>(path, {
      method: 'POST',
      body: body ? JSON.stringify(body) : undefined,
    }),
  uploadBulkLookupFile: (file: File): Promise<BulkLookupJobSummary> => {
    const formData = new FormData();
    formData.append('file', file);
    return request<BulkLookupJobSummary>('/bulk-lookup/jobs', {
      method: 'POST',
      body: formData,
    });
  },
  listBulkLookupJobs: (): Promise<BulkLookupJobSummary[]> => request<BulkLookupJobSummary[]>('/bulk-lookup/jobs'),
  getBulkLookupJob: (id: number): Promise<BulkLookupJobDetail> =>
    request<BulkLookupJobDetail>(`/bulk-lookup/jobs/${id}`),
  bulkLookupDownloadUrl,
};