import {z} from 'zod'

export type PaymentInfoDtoV2 = {quoteId?: number | undefined, paymentToken?: string | undefined, paymentIntent?: string | undefined, paymentMethod?: string | undefined, customer?: string | undefined, paymentIp?: string | undefined, paymentMethodNonce?: string | undefined, paymentService: 'stripe' | 'checkOut', useVoucher?: boolean | undefined, purchasePaymentType?: ('full' | 'deposit') | undefined, validateIntentAmount?: boolean | undefined, companyId?: number | undefined};

export type ResidencyDtoV2 = {country?: (string | null) | undefined, areaLevel1?: (string | null) | undefined, locality?: (string | null) | undefined, label?: (string | null) | undefined, googleId?: (string | null) | undefined, fullCountryName?: (string | null) | undefined, streetAndNumber?: (string | null) | undefined, city?: (string | null) | undefined, apartment?: (string | null) | undefined, zipCode?: (string | null) | undefined};

export type OsInfoDtoV2 = {customerTZ: string, operationSystem: string, osVersion: string};

export type SaveAndPayDtoV2 = {paymentInfo: PaymentInfoDtoV2, address?: ResidencyDtoV2 | undefined, policyCodeHash: string, osInfoDto?: OsInfoDtoV2 | undefined};

export type CreateApiV2PurchaseArgs = {Authorization?: string | undefined, body: SaveAndPayDtoV2};

export type CreateApiV2PurchaseOptions = {baseUrl?: string | undefined, bearer?: string | undefined, fetch?: typeof fetch | undefined};

export const policyholderDto = z.object({name: z.string(), planId: z.string()});

export const purchasePolicyDto = z.object({purchaseId: z.string(), plans: z.array(policyholderDto).optional(), totalPrice: z.number().multipleOf(0.01), paymentIntent: z.string().optional(), policyUrl: z.string().optional(), receiptUrl: z.string().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
};

/**
 * Save and pay for a quote (V2)
 * 
 * POST /v2/purchase
 */
export const createApiV2Purchase = async (args: CreateApiV2PurchaseArgs, options?: CreateApiV2PurchaseOptions) => {
const {baseUrl = "https://partnerapi.withfaye.com", fetch: fetchFn = fetch, bearer} = options ?? {}

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

if (args.Authorization != null) headers.set("Authorization", String(args.Authorization))
if (bearer !== undefined) headers.set('authorization', `Bearer ${bearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v2/purchase${query.size > 0 ? `?${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(purchasePolicyDto, await res.json())
};