import {z} from 'zod'

export type GetApiWalletsArgs = {page?: number | undefined, per_page?: number | undefined, external_customer_id: string};

export type GetApiWalletsOptions = {baseUrl?: string | undefined, BearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const walletStatus = z.enum(["ACTIVE", "TERMINATED", "PENDING"]);

export const currency = z.string().min(3).max(3);

export const amount = z.object({value: z.number().gte(0), currency_code: currency});

export const dateTimeWithZone = z.string();

export const feeType = z.enum(["SUBSCRIPTION", "COMMITMENT", "CHARGE"]);

export const prepaidCreditAppliesTo = z.object({fee_types: z.array(feeType).optional()});

export const recurringTransactionTrigger = z.enum(["INTERVAL", "THRESHOLD"]);

export const recurringTransactionMethod = z.enum(["FIXED", "TARGET"]);

export const billingCycle = z.enum(["WEEKLY", "MONTHLY", "QUARTERLY", "YEARLY"]);

export const recurringTransactionRule = z.object({trigger: recurringTransactionTrigger, paid_credits: z.string().optional(), granted_credits: z.string().optional(), method: recurringTransactionMethod, interval: billingCycle.optional(), started_at: dateTimeWithZone.optional(), expiration_at: dateTimeWithZone.optional(), threshold_credits: z.string().optional(), target_ongoing_balance: z.string().optional()});

export const walletId = z.string();

export const walletWithId = z.object({external_customer_id: z.string(), status: walletStatus, available_balance: amount.optional(), ongoing_usage: z.object({value: z.number().gte(0), currency_code: currency}).optional(), net_balance: z.object({value: z.number().gte(0), currency_code: currency}).optional(), name: z.string().optional(), rate_amount: z.string(), available_credits: z.string().optional(), ongoing_usage_credits: z.string().optional(), net_balance_credits: z.string().optional(), consumed_credits: z.string().optional(), created_at: dateTimeWithZone.optional(), expiration_at: dateTimeWithZone.optional(), terminated_at: dateTimeWithZone.optional(), applies_to: prepaidCreditAppliesTo.optional(), recurring_transaction_rules: z.array(recurringTransactionRule).optional(), id: walletId.optional()});

export const paginationMetadata = z.object({total_count: z.number().int().optional(), total_pages: z.number().int().optional(), current_page: z.number().int().optional()});

export const getApiWalletsResponse = z.object({wallets: z.array(walletWithId).optional(), metadata: paginationMetadata.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 all wallets
 * 
 * GET /wallets
 */
export const getApiWallets = async (args: GetApiWalletsArgs, options?: GetApiWalletsOptions) => {
const {baseUrl = "https://api-m.sandbox.paypal.com", fetch: fetchFn = fetch, BearerAuth} = options ?? {}

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

if (args.page != null) query.append("page", String(args.page))
if (args.per_page != null) query.append("per_page", String(args.per_page))
if (args.external_customer_id != null) query.append("external_customer_id", String(args.external_customer_id))
if (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)

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