import {z} from 'zod'

export type GetApiV1CollectionsArgs = {page_size?: number | undefined, cursor?: string | undefined, order_by?: string | undefined, direction?: string | undefined, blacklist?: string | undefined};

export type GetApiV1CollectionsOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const collection = z.object({address: z.string().min(1), name: z.string().min(1), description: z.string().min(1), icon_url: z.string().min(1), collection_image_url: z.string().min(1), project_id: z.number(), metadata_api_url: z.string().min(1)});

export const collectionList = z.object({result: z.array(collection), cursor: z.string().min(1), remaining: z.number()});

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 collections
 * 
 * GET /v1/collections
 */
export const getApiV1Collections = async (args: GetApiV1CollectionsArgs, options?: GetApiV1CollectionsOptions) => {
const {baseUrl = "https://api.x.immutable.com", fetch: fetchFn = fetch} = options ?? {}

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

if (args.page_size != null) query.append("page_size", String(args.page_size))
if (args.cursor != null) query.append("cursor", String(args.cursor))
if (args.order_by != null) query.append("order_by", String(args.order_by))
if (args.direction != null) query.append("direction", String(args.direction))
if (args.blacklist != null) query.append("blacklist", String(args.blacklist))

const url = `${baseUrl.replace(/\/+$/, '')}/v1/collections${query.size > 0 ? `?${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(collectionList, await res.json())
};