import {z} from 'zod'

export type AccountValidationVAS = {validation?: ('RUN' | 'SKIP' | 'ACCOUNT_DEFAULT') | undefined};

export type ValueAddedServicesPayouts = {account_validation?: AccountValidationVAS | undefined};

export type PayoutTxn = {client_transfer_id?: string | undefined, source_currency_code?: string | undefined, destination_currency_code: string, source_token: string, destination_token?: string | undefined, destination_amount?: number | undefined, source_amount?: number | undefined, attr_set_token?: string | undefined, metadata?: Record<string, never> | undefined, notify_user?: boolean | undefined, auto_commit?: boolean | undefined, statement_description?: string | undefined, sender_user_token?: string | undefined, value_added_services?: ValueAddedServicesPayouts | undefined};

export type CreateApiPayoutUserTokenArgs = {user_token: string, 'Idempotency-Key'?: string | undefined, limit?: number | undefined, dry_run?: boolean | undefined, body: PayoutTxn};

export type CreateApiPayoutUserTokenOptions = {baseUrl?: string | undefined, AUTHORIZERNAME?: string | undefined, fetch?: typeof fetch | undefined};

export const payoutTxnResp = z.object({payout_token: z.string().min(3).max(43), client_transfer_id: z.string().max(50), source_currency_code: z.string().min(3).max(5), destination_currency_code: z.string().min(3).max(5), source_token: z.string().min(36).max(45), destination_token: z.string().min(36).max(41), destination_amount: z.number(), source_amount: z.number(), attr_set_token: z.string().min(36).max(45), exchange_rate: z.number(), fee: z.number(), expiration: z.string(), pickup_code: z.string(), trace_code: z.string().optional(), status: z.enum(["PENDING", "EXPIRED", "PROCESSING", "COMPLETED", "CANCELLED", "SCHEDULED", "READY_FOR_PICKUP", "HOLD", "ERROR"]), payer_logo: z.string().optional(), payer_name: z.string(), delivery_type: z.enum(["CASH_PICKUP", "BANK_DEPOSIT", "HOME_DELIVERY", "MOBILE_WALLET", "MASSPAY_CARD", "PAPER_CHECK", "BILL", "CRYPTOCURRENCY"]), country_code: z.string().min(3).max(3), metadata: z.object({}).optional(), estimated_availability: z.string(), status_reason: z.string().optional(), attrs: z.object({}).optional(), sender_user_token: z.string().min(36).max(40).optional(), reversible_amount: z.number().gte(0)});

export const payoutTxnCommitResp = z.object({payout_token: z.string(), status: z.enum(["success", "failure", "addtl_attr_req", "ex_rate_expired", "nsf"]), pickup_code: z.string().optional(), errors: z.string().optional()});

export const createApiPayoutUserTokenResponse = z.union([payoutTxnResp, payoutTxnCommitResp]);

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
};

/**
 * Initiate a payout transaction
 * 
 * POST /payout/{user_token}
 * 
 * Also accepts auth: api_key
 */
export const createApiPayoutUserToken = async (args: CreateApiPayoutUserTokenArgs, options?: CreateApiPayoutUserTokenOptions) => {
const {baseUrl = "https://api.masspay.io/v1.0.0", fetch: fetchFn = fetch, AUTHORIZERNAME} = options ?? {}

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

if (args['Idempotency-Key'] != null) headers.set("Idempotency-Key", String(args['Idempotency-Key']))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.dry_run != null) query.append("dry_run", String(args.dry_run))
if (AUTHORIZERNAME !== undefined) headers.set("Authorization", AUTHORIZERNAME)

const url = `${baseUrl.replace(/\/+$/, '')}/payout/${encodeURIComponent(String(args.user_token))}${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(createApiPayoutUserTokenResponse, await res.json())
};