import {z} from 'zod'

export type CreateApiFundAccountsArgs = {body: {contact_id: string, account_type: 'bank_account' | 'vpa' | 'card' | 'wallet', bank_account?: ({name?: string | undefined, ifsc?: string | undefined, account_number?: string | undefined}) | undefined, vpa?: ({address?: string | undefined}) | undefined, card?: ({name?: string | undefined, number?: string | undefined, expiry_month?: string | undefined, expiry_year?: string | undefined, input_type?: ('razorpay_token' | 'service_provider_token' | 'raw') | undefined, token_id?: string | undefined, token?: string | undefined}) | undefined, wallet?: ({provider?: 'amazonpay' | undefined, phone?: string | undefined, email?: string | undefined, name?: string | undefined}) | undefined}};

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

export const fundAccount = z.object({id: z.string().optional(), entity: z.literal("fund_account").optional(), contact_id: z.string().optional(), account_type: z.enum(["bank_account", "vpa", "card", "wallet"]).optional(), active: z.boolean().optional(), batch_id: z.string().optional(), bank_account: z.object({ifsc: z.string().optional(), bank_name: z.string().optional(), name: z.string().optional(), account_number: z.string().optional()}).optional(), vpa: z.object({username: z.string().optional(), handle: z.string().optional(), address: z.string().optional()}).optional(), card: z.object({last4: z.string().optional(), network: z.string().optional(), type: z.string().optional(), issuer: z.string().optional(), input_type: z.enum(["razorpay_token", "service_provider_token", "raw"]).optional()}).optional(), created_at: z.number().int().optional(), wallet: z.object({provider: z.literal("amazonpay").optional(), phone: z.string().optional(), email: z.string().optional(), name: z.string().min(4).max(120).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
};

/**
 * Create a fund account
 * 
 * POST /fund_accounts
 * 
 * Also accepts auth: oauth2
 */
export const createApiFundAccounts = async (args: CreateApiFundAccountsArgs, options?: CreateApiFundAccountsOptions) => {
const {baseUrl = "https://api.razorpay.com/v1", 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 = `${baseUrl.replace(/\/+$/, '')}/fund_accounts${query.size > 0 ? `?${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(fundAccount, await res.json())
};