import {z} from 'zod'

export type GetApiPackagesPackageIdGranulesArgs = {packageId: string, offsetMark?: string | undefined, offset?: number | undefined, pageSize: number, md5?: string | undefined, granuleClass?: string | undefined};

export type GetApiPackagesPackageIdGranulesOptions = {baseUrl: string, apiKeyScheme?: string | undefined, fetch?: typeof fetch | undefined};

export const granuleMetadata = z.object({title: z.string().optional(), granuleId: z.string().optional(), granuleLink: z.string().optional(), dateIssued: z.string().optional(), granuleClass: z.string().optional(), md5: z.string().optional()});

export const granuleContainer = z.object({count: z.number().int().optional(), offset: z.number().int().optional(), pageSize: z.number().int().optional(), nextPage: z.string().optional(), previousPage: z.string().optional(), granules: z.array(granuleMetadata).optional(), message: z.string().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
};

/**
 * Get a list of granules associated with a package
 * 
 * GET /packages/{packageId}/granules
 */
export const getApiPackagesPackageIdGranules = async (args: GetApiPackagesPackageIdGranulesArgs, options: GetApiPackagesPackageIdGranulesOptions) => {
const {baseUrl, fetch: fetchFn = fetch, apiKeyScheme} = options ?? {}

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

if (args.offsetMark != null) query.append("offsetMark", String(args.offsetMark))
if (args.offset != null) query.append("offset", String(args.offset))
if (args.pageSize != null) query.append("pageSize", String(args.pageSize))
if (args.md5 != null) query.append("md5", String(args.md5))
if (args.granuleClass != null) query.append("granuleClass", String(args.granuleClass))
if (apiKeyScheme !== undefined) query.set("api_key", apiKeyScheme)

const url = `${baseUrl.replace(/\/+$/, '')}/packages/${encodeURIComponent(String(args.packageId))}/granules${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(granuleContainer, await res.json())
};