import {z} from 'zod'

export type GetApiApiV1ProvidersHetznerSizesArgs = {HetznerToken?: string | undefined, Credential?: string | undefined};

export type GetApiApiV1ProvidersHetznerSizesOptions = {baseUrl: string, apiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const hetznerSize = z.object({cores: z.number().int().optional(), description: z.string().optional(), disk: z.number().int().optional(), id: z.number().int().optional(), memory: z.number().optional(), name: z.string().optional()});

export const hetznerSizeList = z.object({dedicated: z.array(hetznerSize).optional(), standard: z.array(hetznerSize).optional()});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Lists sizes from hetzner
 * 
 * GET /api/v1/providers/hetzner/sizes
 */
export const getApiApiV1ProvidersHetznerSizes = async (args: GetApiApiV1ProvidersHetznerSizesArgs, options: GetApiApiV1ProvidersHetznerSizesOptions) => {
const {baseUrl, fetch: fetchFn = fetch, apiKey} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('accept', "application/json")

if (args.HetznerToken != null) headers.set("HetznerToken", String(args.HetznerToken))
if (args.Credential != null) headers.set("Credential", String(args.Credential))
if (apiKey !== undefined) headers.set("Authorization", apiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/providers/hetzner/sizes${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(hetznerSizeList, await res.json())
};