import {z} from 'zod'

export type AuthorizationAmount = {gross: number, net: number, tax: number};

export type TinyText = string;

export type OrderDuration = number;

export type CountryCode = string;

export type CreateOrderAddressRequest = {addition?: TinyText | undefined, house_number?: TinyText | undefined, street: TinyText, city: TinyText, postal_code: TinyText, country: CountryCode, organization_name?: TinyText | undefined};

export type LegalForm = string;

export type PostalCode = string;

export type LegacyCreateOrderDebtorCompanyRequest = {merchant_customer_id: TinyText, name: TinyText, tax_id?: TinyText | undefined, tax_number?: TinyText | undefined, registration_court?: TinyText | undefined, registration_number?: TinyText | undefined, industry_sector?: TinyText | undefined, subindustry_sector?: TinyText | undefined, employees_number?: TinyText | undefined, legal_form: LegalForm, established_customer?: boolean | undefined, address_addition?: TinyText | undefined, address_house_number?: TinyText | undefined, address_street: TinyText, address_city: TinyText, address_postal_code: PostalCode, address_country: CountryCode, organisation_type?: string | undefined};

export type AuthorizationStrictEmail = string;

export type AuthorizationPhoneNumber = string;

export type AmountDTO = {gross: number, net: number, tax: number};

export type CreateOrderLineItemRequest = {external_id: TinyText, title: TinyText, description?: string | undefined, quantity: number, category?: TinyText | undefined, brand?: TinyText | undefined, gtin?: TinyText | undefined, mpn?: TinyText | undefined, product_url?: TinyText | undefined, image_url?: TinyText | undefined, type?: TinyText | undefined, quantity_unit?: TinyText | undefined, tax_rate?: number | undefined, total_discount_amount?: number | undefined, unit_price?: number | undefined, amount: AmountDTO};

export type HppCheckoutSessionECommerce = {channel: 'ecommerce', amount: AuthorizationAmount, comment?: TinyText | undefined, duration: OrderDuration, order_id?: TinyText | undefined, delivery_address?: CreateOrderAddressRequest | undefined, billing_address?: CreateOrderAddressRequest | undefined, debtor_company: LegacyCreateOrderDebtorCompanyRequest, debtor_person: {email: AuthorizationStrictEmail, salutation?: ('m' | 'f') | undefined, first_name?: string | undefined, last_name?: string | undefined, phone_number?: AuthorizationPhoneNumber | undefined}, line_items: Array<CreateOrderLineItemRequest>, merchant_urls: {accept_url: string, decline_url: string}};

export type HppCheckoutSessionTelesales = {channel: 'telesales', amount: AuthorizationAmount, comment?: TinyText | undefined, duration: OrderDuration, order_id?: TinyText | undefined, delivery_address?: CreateOrderAddressRequest | undefined, billing_address?: CreateOrderAddressRequest | undefined, debtor_company: LegacyCreateOrderDebtorCompanyRequest, debtor_person: {email: AuthorizationStrictEmail, salutation?: ('m' | 'f') | undefined, first_name?: string | undefined, last_name?: string | undefined, phone_number?: AuthorizationPhoneNumber | undefined}, line_items: Array<CreateOrderLineItemRequest>, merchant_urls?: ({accept_url?: string | undefined, decline_url?: string | undefined}) | undefined};

export type HppCheckoutSessionInstore = {channel: 'instore', amount: AuthorizationAmount, comment?: TinyText | undefined, duration: OrderDuration, order_id?: TinyText | undefined, delivery_address?: CreateOrderAddressRequest | undefined, billing_address?: CreateOrderAddressRequest | undefined, debtor_company: LegacyCreateOrderDebtorCompanyRequest, debtor_person: {email: AuthorizationStrictEmail, salutation?: ('m' | 'f') | undefined, first_name?: string | undefined, last_name?: string | undefined, phone_number?: AuthorizationPhoneNumber | undefined}, line_items: Array<CreateOrderLineItemRequest>, merchant_urls?: ({accept_url?: string | undefined, decline_url?: string | undefined}) | undefined};

export type CreateApiHppCheckoutSessionsArgs = {body: HppCheckoutSessionECommerce | HppCheckoutSessionTelesales | HppCheckoutSessionInstore};

export type CreateApiHppCheckoutSessionsOptions = {baseUrl?: string | undefined, oauth2?: string | undefined, fetch?: typeof fetch | undefined};

export const uUID = z.string().min(36).max(36);

export const createApiHppCheckoutSessionsResponse = z.object({session_id: uUID, expires_at: z.string(), hpp_url: z.string()});

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
};

/**
 * Hpp Checkout Session Create
 * 
 * POST /hpp-checkout-sessions
 */
export const createApiHppCheckoutSessions = async (args: CreateApiHppCheckoutSessionsArgs, options?: CreateApiHppCheckoutSessionsOptions) => {
const {baseUrl = "https://paella-sandbox.billie.io/api/v2", fetch: fetchFn = fetch, oauth2} = options ?? {}

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

if (oauth2 !== undefined) headers.set('authorization', `Bearer ${oauth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/hpp-checkout-sessions${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(createApiHppCheckoutSessionsResponse, await res.json())
};