import {z} from 'zod'

export type CreateSubscriptionRequest = {clientReferenceId: string, productId: string, priceId: string, customer: {id: string}, trial?: ({duration: number, durationType: 'hour' | 'day' | 'week' | 'month' | 'year'}) | undefined, discountedTrial?: ({cycleCount: number, billingCycleConfig: {interval: 'hour' | 'day' | 'week' | 'month' | 'year', frequency: number}, price: {amountStr?: string | undefined, unitAmount?: number | undefined, currency: 'USD' | 'AUD' | 'CAD' | 'CHF' | 'DKK' | 'EUR' | 'GBP' | 'HKD' | 'JPY' | 'NOK' | 'NZD' | 'PLN' | 'SEK' | 'SGD' | 'TWD' | 'KRW' | 'SOL' | 'USDC' | 'USDT' | 'HONEY' | 'EURC'}}) | undefined, startAt?: number | undefined, gracePeriodDays?: number | undefined, successReturnUrl?: string | undefined, failReturnUrl?: string | undefined, preferredPaymentMethods?: (Array<'card' | 'saved_card' | 'apple_pay' | 'google_pay' | 'crypto' | 'crypto_wallet' | 'crypto_deposit'>) | undefined, phases?: (Array<{cycleCount: number, priceId: string} | {cycleCount: number, price: {unitAmount: number, currency: 'USD' | 'AUD' | 'CAD' | 'CHF' | 'DKK' | 'EUR' | 'GBP' | 'HKD' | 'JPY' | 'NOK' | 'NZD' | 'PLN' | 'SEK' | 'SGD' | 'TWD' | 'KRW' | 'SOL' | 'USDC' | 'USDT' | 'HONEY' | 'EURC', billingCycleConfig: {interval: 'hour' | 'day' | 'week' | 'month' | 'year', frequency: number}}}>) | undefined};

export type CreateApiV1SubscriptionsArgs = {body: CreateSubscriptionRequest};

export type CreateApiV1SubscriptionsOptions = {baseUrl?: string | undefined, basicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const createSubscriptionResponse = z.object({id: z.string().optional(), url: z.string().optional()});

export const createApiV1SubscriptionsResponse = z.object({status: z.literal("SUCCEEDED"), data: createSubscriptionResponse});

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
};

/**
 * Create a subscription
 * 
 * POST /v1/subscriptions
 */
export const createApiV1Subscriptions = async (args: CreateApiV1SubscriptionsArgs, options?: CreateApiV1SubscriptionsOptions) => {
const {baseUrl = "https://api.breeze.cash", fetch: fetchFn = fetch, basicAuth} = options ?? {}

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

if (basicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${basicAuth.username}:${basicAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/subscriptions${query.size > 0 ? `?${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(createApiV1SubscriptionsResponse, await res.json())
};