import {z} from 'zod'

export type OffsetToken = string;

export type MerchantReference = string;

export type GetApiMerchantsArgs = {sortOrder?: ('asc' | 'desc') | undefined, limit?: number | undefined, offsetToken?: OffsetToken | undefined, merchantReference?: MerchantReference | undefined};

export type GetApiMerchantsOptions = {baseUrl?: string | undefined, ApiKey?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const offsetToken = z.string().min(1).max(2048);

export const moreItems = z.boolean();

export const merchantKey = z.string().min(5).max(120);

export const merchantStatus = z.enum(["active", "archived"]);

export const merchantReference = z.string().min(1).max(120);

export const agentKey = z.string();

export const merchantLegalName = z.string().min(1).max(120);

export const countryCodeAlpha3 = z.string().min(3).max(3);

export const countryCodeAlpha2 = z.string().min(2).max(2);

export const countryCodeNumeric = z.string().min(3).max(3);

export const countryCode = z.object({alpha3: countryCodeAlpha3, alpha2: countryCodeAlpha2, numeric: countryCodeNumeric});

export const stateOrProvince = z.string().min(1).max(120);

export const city = z.string().min(1).max(120);

export const line1 = z.string().min(1).max(120);

export const line2 = z.string().min(1).max(120);

export const postalCode = z.string().min(1).max(10);

export const address = z.object({countryCode: countryCode, stateOrProvince: stateOrProvince.optional(), city: city, line1: line1, line2: line2.optional(), postalCode: postalCode});

export const phoneNumber = z.string().min(5).max(33);

export const url = z.string().min(8).max(2048);

export const tags = z.record(z.string(), z.string().min(1).max(100));

export const created = z.string();

export const lastModified = z.string();

export const version = z.number().int();

export const taxRegistrationId = z.string().max(20);

export const email = z.string();

export const businessType = z.enum(["corporation", "sole_proprietorship", "partnership", "non_profit_organization", "government_agency", "limited_liability_company"]);

export const merchant = z.object({key: merchantKey, status: merchantStatus, merchantReference: merchantReference.optional(), agentKey: agentKey, name: z.string().min(1).max(120), description: z.string().min(1).max(160).optional(), legalName: merchantLegalName, registeredAddress: address, customerInquiry: phoneNumber, websiteUrl: url, tags: tags.optional(), created: created, lastModified: lastModified.optional(), version: version, taxRegistrationId: taxRegistrationId.optional(), sellerEmail: email.optional(), businessType: businessType.optional()});

export const merchantsPage = z.object({offsetToken: offsetToken.optional(), moreItems: moreItems.optional(), merchants: z.array(merchant)});

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 Merchants
 * 
 * GET /merchants
 * 
 * Also accepts auth: BearerToken
 */
export const getApiMerchants = async (args: GetApiMerchantsArgs, options?: GetApiMerchantsOptions) => {
const {baseUrl = "https://eu-west-1.api.silverflow.com/v1", fetch: fetchFn = fetch, ApiKey} = options ?? {}

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

if (args.sortOrder != null) query.append("sortOrder", String(args.sortOrder))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.offsetToken != null) query.append("offsetToken", String(args.offsetToken))
if (args.merchantReference != null) query.append("merchantReference", String(args.merchantReference))
if (ApiKey !== undefined) headers.set('authorization', `Basic ${btoa(`${ApiKey.username}:${ApiKey.password}`)}`)

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