import {z} from 'zod'

export type GetApiFeaturesArgs = {nextToken?: string | undefined, pageSize?: number | undefined};

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

export const featureListResponse = z.object({id: z.string(), name: z.string(), billableName: z.string().max(255).optional(), displayName: z.string().max(255), schemaCount: z.number().int(), createdAt: z.string(), updatedAt: z.string().optional()});

export const paginationOptions = z.object({pageSize: z.number().int().optional(), sortOrder: z.enum(["ASC", "DESC"]).optional()});

export const featurePaginatedListData = z.object({data: z.array(featureListResponse).optional(), nextToken: z.string().optional(), context: paginationOptions.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
};

/**
 * List Feature
 * 
 * GET /features
 */
export const getApiFeatures = async (args: GetApiFeaturesArgs, options?: GetApiFeaturesOptions) => {
const {baseUrl = "https://api.togai.com", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.nextToken != null) query.append("nextToken", String(args.nextToken))
if (args.pageSize != null) query.append("pageSize", String(args.pageSize))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

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