import {z} from 'zod'

export type ViewType = 0 | 1;

export type GetApiV1CountriesArgs = {Name?: string | undefined, IsoCode?: string | undefined, Lang?: string | undefined, ViewType?: ViewType | undefined, Page?: number | undefined, ItemsPerPage?: number | undefined, ReturnTotalItems?: boolean | undefined, sortCol?: string | undefined, sortDir?: string | undefined};

export type GetApiV1CountriesOptions = {baseUrl: string, Bearer?: string | undefined, fetch?: typeof fetch | undefined};

export const countryResponseModel = z.object({name: z.string().nullable().optional(), isoCode: z.string().nullable().optional()});

export const countryResponseModelQueryResult = z.object({totalItems: z.number().int().optional(), items: z.array(countryResponseModel).nullable().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 all existing countries
 * 
 * GET /v1/countries
 * 
 * Also accepts auth: API Key
 */
export const getApiV1Countries = async (args: GetApiV1CountriesArgs, options: GetApiV1CountriesOptions) => {
const {baseUrl, fetch: fetchFn = fetch, Bearer} = options ?? {}

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

if (args.Name != null) query.append("Name", String(args.Name))
if (args.IsoCode != null) query.append("IsoCode", String(args.IsoCode))
if (args.Lang != null) query.append("Lang", String(args.Lang))
if (args.ViewType != null) query.append("ViewType", String(args.ViewType))
if (args.Page != null) query.append("Page", String(args.Page))
if (args.ItemsPerPage != null) query.append("ItemsPerPage", String(args.ItemsPerPage))
if (args.ReturnTotalItems != null) query.append("ReturnTotalItems", String(args.ReturnTotalItems))
if (args.sortCol != null) query.append("sortCol", String(args.sortCol))
if (args.sortDir != null) query.append("sortDir", String(args.sortDir))
if (Bearer !== undefined) headers.set('authorization', `Bearer ${Bearer}`)

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