import {z} from 'zod'

export type GetApiV1QuotesArgs = {sourceCountry: string, sourceCurrency: string, destinationCountry: string, destinationCurrency: string, amountCurrency: string, amount: number, finInstIdType: string, finInstId: string, destFinInstIdType?: string | undefined, destFinInstId?: string | undefined};

export type GetApiV1QuotesOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const getApiV1QuotesResponse = z.object({quoteRequestId: z.string().optional(), sourceCountry: z.string().optional(), sourceCurrency: z.string().optional(), destinationCountry: z.string().optional(), destinationCurrency: z.string().optional(), amountCurrency: z.string().optional(), amount: z.number().optional(), quotes: z.array(z.object({quoteId: z.string().optional(), issuedDateTime: z.string().optional(), expiryDateTime: z.string().optional(), fxpFinInstIdType: z.string().optional(), fxpFinInstId: z.string().optional(), exchangeRate: z.number().optional(), debtorAgent: z.object({interbankSettlementAmount: z.object({currency: z.string().optional(), amount: z.number().optional(), cappedToMaxAmount: z.boolean().optional()}).optional()}).optional(), intermediaryAgent1: z.object({finInstId: z.object({name: z.string().optional(), BICFI: z.string().optional(), LEI: z.string().optional(), clearingSystemMemberId: z.object({clearingSystemId: z.string().optional(), memberId: z.string().optional()}).optional(), other: z.object({id: z.string().optional()}).optional()}).optional()}).optional(), intermediaryAgent1Account: z.object({id: z.string().optional()}).optional(), intermediaryAgent2: z.object({finInstId: z.object({name: z.string().optional(), BICFI: z.string().optional(), LEI: z.string().optional(), clearingSystemMemberId: z.object({clearingSystemId: z.string().optional(), memberId: z.string().optional()}).optional(), other: z.object({id: z.string().optional()}).optional()}).optional()}).optional(), intermediaryAgent2Account: z.object({id: z.string().optional()}).optional(), creditorAgent: z.object({interbankSettlementAmount: z.object({amount: z.number().optional(), currency: z.string().optional(), cappedToMaxAmount: z.boolean().optional()}).optional(), chargesInformation: z.object({amount: z.object({amount: z.number().optional(), currency: z.string().optional()}).optional()}).optional(), creditorAccountAmount: z.number().optional()}).optional()})).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
};

/**
 * Get quotes for a specific currency pair and amount
 * 
 * GET /v1/quotes
 */
export const getApiV1Quotes = async (args: GetApiV1QuotesArgs, options?: GetApiV1QuotesOptions) => {
const {baseUrl = "http://localhost:8080", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.sourceCountry != null) query.append("sourceCountry", String(args.sourceCountry))
if (args.sourceCurrency != null) query.append("sourceCurrency", String(args.sourceCurrency))
if (args.destinationCountry != null) query.append("destinationCountry", String(args.destinationCountry))
if (args.destinationCurrency != null) query.append("destinationCurrency", String(args.destinationCurrency))
if (args.amountCurrency != null) query.append("amountCurrency", String(args.amountCurrency))
if (args.amount != null) query.append("amount", String(args.amount))
if (args.finInstIdType != null) query.append("finInstIdType", String(args.finInstIdType))
if (args.finInstId != null) query.append("finInstId", String(args.finInstId))
if (args.destFinInstIdType != null) query.append("destFinInstIdType", String(args.destFinInstIdType))
if (args.destFinInstId != null) query.append("destFinInstId", String(args.destFinInstId))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/quotes${query.size > 0 ? `?${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(getApiV1QuotesResponse, await res.json())
};