import {z} from 'zod'

export type GetApiTransactionsArgs = {type?: (string | null) | undefined, status?: (string | null) | undefined, tag?: (string | null) | undefined, contactId?: (string | null) | undefined, bankId?: (string | null) | undefined, incomeOnly?: (boolean | null) | undefined, q?: (string | null) | undefined, from?: (string | null) | undefined, to?: (string | null) | undefined, limit?: number | undefined, cursor?: (string | null) | undefined, 'X-Hevn-Account'?: (string | null) | undefined};

export type GetApiTransactionsOptions = {baseUrl: string, HTTPBearer?: string | undefined, fetch?: typeof fetch | undefined};

export const transactionStatus = z.enum(["pending", "rfi", "success", "failed", "refunded"]);

export const transactionSideView = z.object({amount: z.string(), currency: z.string(), usdRate: z.string().nullable().optional()});

export const accountKey = z.enum(["USDC", "EURC", "RD", "USDC_ARB", "FDIC_USD", "FDIC_EUR", "KYC_CARDS"]);

export const transactionView = z.object({id: z.string().nullable().optional(), type: z.string(), status: transactionStatus, isIncome: z.boolean(), from: transactionSideView.nullable().optional(), to: transactionSideView.nullable().optional(), fee: transactionSideView.nullable().optional(), account: accountKey.nullable().optional(), counterparty: z.string().nullable().optional(), paymentReference: z.string().nullable().optional(), remitter: z.string().nullable().optional(), txHash: z.string().nullable().optional(), tag: z.string().nullable().optional(), hasAttachments: z.boolean().optional(), createdAt: z.string()});

export const pageTransactionView = z.object({items: z.array(transactionView), nextCursor: z.string().nullable().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
};

/**
 * List transactions, newest first
 * 
 * GET /transactions
 */
export const getApiTransactions = async (args: GetApiTransactionsArgs, options: GetApiTransactionsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, HTTPBearer} = options ?? {}

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

if (args.type != null) query.append("type", String(args.type))
if (args.status != null) query.append("status", String(args.status))
if (args.tag != null) query.append("tag", String(args.tag))
if (args.contactId != null) query.append("contactId", String(args.contactId))
if (args.bankId != null) query.append("bankId", String(args.bankId))
if (args.incomeOnly != null) query.append("incomeOnly", String(args.incomeOnly))
if (args.q != null) query.append("q", String(args.q))
if (args.from != null) query.append("from", String(args.from))
if (args.to != null) query.append("to", String(args.to))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.cursor != null) query.append("cursor", String(args.cursor))
if (args['X-Hevn-Account'] != null) headers.set("X-Hevn-Account", String(args['X-Hevn-Account']))
if (HTTPBearer !== undefined) headers.set('authorization', `Bearer ${HTTPBearer}`)

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