import {z} from 'zod'

export type CreateApiCosmosTxV1beta1DecodeArgs = {body: {tx_bytes?: string | undefined}};

export type CreateApiCosmosTxV1beta1DecodeOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const cosmosTxV1beta1ModeInfoMulti = z.object({bitarray: z.object({extra_bits_stored: z.number().int().optional(), elems: z.string().optional()}).optional(), mode_infos: z.array(z.lazy(() => cosmosTxV1beta1ModeInfo)).optional()});

export const cosmosTxV1beta1ModeInfo: z.ZodType<CosmosTxV1beta1ModeInfo> = z.object({single: z.object({mode: z.enum(["SIGN_MODE_UNSPECIFIED", "SIGN_MODE_DIRECT", "SIGN_MODE_TEXTUAL", "SIGN_MODE_DIRECT_AUX", "SIGN_MODE_LEGACY_AMINO_JSON", "SIGN_MODE_EIP_191"]).optional()}).optional(), multi: cosmosTxV1beta1ModeInfoMulti.optional()});

export const cosmosTxV1beta1SignerInfo = z.object({public_key: z.object({type_url: z.string().optional(), value: z.string().optional()}).optional(), mode_info: cosmosTxV1beta1ModeInfo.optional(), sequence: z.string().optional()});

export const cosmosTxV1beta1AuthInfo = z.object({signer_infos: z.array(cosmosTxV1beta1SignerInfo).optional(), fee: z.object({amount: z.array(z.object({denom: z.string().optional(), amount: z.string().optional()})).optional(), gas_limit: z.string().optional(), payer: z.string().optional(), granter: z.string().optional()}).optional(), tip: z.object({amount: z.array(z.object({denom: z.string().optional(), amount: z.string().optional()})).optional(), tipper: z.string().optional()}).optional()});

export const cosmosTxV1beta1Tx = z.object({body: z.object({messages: z.array(z.object({type_url: z.string().optional(), value: z.string().optional()})).optional(), memo: z.string().optional(), timeout_height: z.string().optional(), extension_options: z.array(z.object({type_url: z.string().optional(), value: z.string().optional()})).optional(), non_critical_extension_options: z.array(z.object({type_url: z.string().optional(), value: z.string().optional()})).optional()}).optional(), auth_info: cosmosTxV1beta1AuthInfo.optional(), signatures: z.array(z.string()).optional()});

export const cosmosTxV1beta1TxDecodeResponse = z.object({tx: cosmosTxV1beta1Tx.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
};

/**
 * TxDecode decodes the transaction.
 * 
 * POST /cosmos/tx/v1beta1/decode
 */
export const createApiCosmosTxV1beta1Decode = async (args: CreateApiCosmosTxV1beta1DecodeArgs, options: CreateApiCosmosTxV1beta1DecodeOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/cosmos/tx/v1beta1/decode${query.size > 0 ? `?${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(cosmosTxV1beta1TxDecodeResponse, await res.json())
};