import type { FetchOptions } from 'ofetch'
import { $fetch, FetchError } from 'ofetch'

export type ApiClient = {
  get<T>(path: string, options?: FetchOptions<'json'>): Promise<T>
  post<T>(path: string, body?: unknown, options?: FetchOptions<'json'>): Promise<T>
}

export const useApi = (): ApiClient => {
  const config = useRuntimeConfig()
  const baseURL = config.public.apiBase ?? '/api'
  const client = $fetch.create({ baseURL })

  return {
    get<T>(path: string, options?: FetchOptions<'json'>) {
      return client<T>(path, { ...options, method: 'GET' })
    },
    post<T>(path: string, body?: unknown, options?: FetchOptions<'json'>) {
      return client<T>(path, { ...options, method: 'POST', body })
    }
  }
}

export const getApiStatus = (error: unknown): number | null => {
  if (error && typeof error === 'object') {
    if (error instanceof FetchError) {
      return error.status ?? error.response?.status ?? null
    }

    const maybeResponse = (error as { response?: { status?: number } }).response
    if (typeof maybeResponse?.status === 'number') {
      return maybeResponse.status
    }

    const maybeStatus = (error as { status?: number }).status
    if (typeof maybeStatus === 'number') {
      return maybeStatus
    }
  }

  return null
}