import {z} from 'zod'

export type GetApiTransactionsArgs = {_limit: number, _offset: number, createdAt?: string | undefined, productType?: ('TOPUP' | 'ESIM' | 'VOUCHER' | 'BILL_PAY' | 'WALLET_RECHARGE' | 'REFUND' | 'BULK_CHECKOUT') | undefined, status?: ('ACCEPTED' | 'PENDING' | 'AUTHORIZED' | 'IN_PROGRESS' | 'DONE' | 'FAILED') | undefined, type?: ('CREDIT' | 'DEBIT') | undefined};

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

export const dtoError = z.object({code: z.string(), description: z.string(), message: z.string()});

export const dtoTransactionStatus = z.enum(["ACCEPTED", "PENDING", "AUTHORIZED", "IN_PROGRESS", "DONE", "FAILED"]);

export const dtoTransactionLogItem = z.object({dateTime: z.string(), status: dtoTransactionStatus, statusMessage: z.string()});

export const dtoProductType = z.enum(["TOPUP", "ESIM", "VOUCHER", "BILL_PAY", "WALLET_RECHARGE", "REFUND", "BULK_CHECKOUT"]);

export const dtoTransactionType = z.enum(["CREDIT", "DEBIT"]);

export const dtoTransaction = z.object({amount: z.number().int(), createdAt: z.string(), currency: z.string(), currencyDivisor: z.number().int(), error: dtoError.optional(), log: z.array(dtoTransactionLogItem), productType: dtoProductType, status: dtoTransactionStatus, transactionId: z.string(), type: dtoTransactionType, updatedAt: z.string()});

export const dtoTransactionsResponse = z.object({limit: z.number().int(), list: z.array(dtoTransaction), offset: z.number().int(), total: z.number().int()});

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 list of transactions
 * 
 * GET /transactions
 */
export const getApiTransactions = async (args: GetApiTransactionsArgs, options: GetApiTransactionsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, ApiKey} = options ?? {}

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

if (args._limit != null) query.append("_limit", String(args._limit))
if (args._offset != null) query.append("_offset", String(args._offset))
if (args.createdAt != null) query.append("createdAt", String(args.createdAt))
if (args.productType != null) query.append("productType", String(args.productType))
if (args.status != null) query.append("status", String(args.status))
if (args.type != null) query.append("type", String(args.type))
if (ApiKey !== undefined) headers.set("Authorization", ApiKey)

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(dtoTransactionsResponse, await res.json())
};