import {z} from 'zod'

export type GoogleProtobufAny = {'@type'?: string | undefined} | {[key: string]: unknown};

export type CosmosTxV1beta1TxBody = {messages?: Array<GoogleProtobufAny> | undefined, memo?: string | undefined, timeoutHeight?: unknown | undefined, unordered?: boolean | undefined, timeoutTimestamp?: string | undefined, extensionOptions?: Array<GoogleProtobufAny> | undefined, nonCriticalExtensionOptions?: Array<GoogleProtobufAny> | undefined};

export type CosmosTxSigningV1beta1SignMode = 'SIGN_MODE_UNSPECIFIED' | 'SIGN_MODE_DIRECT' | 'SIGN_MODE_TEXTUAL' | 'SIGN_MODE_DIRECT_AUX' | 'SIGN_MODE_LEGACY_AMINO_JSON' | 'SIGN_MODE_EIP_191';

export type CosmosTxV1beta1ModeInfoSingle = {mode?: CosmosTxSigningV1beta1SignMode | undefined};

export type CosmosCryptoMultisigV1beta1CompactBitArray = {extraBitsStored?: number | undefined, elems?: string | undefined};

export type CosmosTxV1beta1ModeInfoMulti = {bitarray?: CosmosCryptoMultisigV1beta1CompactBitArray | undefined, modeInfos?: Array<CosmosTxV1beta1ModeInfo> | undefined};

export type CosmosTxV1beta1ModeInfo = {single?: CosmosTxV1beta1ModeInfoSingle | undefined, multi?: CosmosTxV1beta1ModeInfoMulti | undefined};

export type CosmosTxV1beta1SignerInfo = {publicKey?: GoogleProtobufAny | undefined, modeInfo?: CosmosTxV1beta1ModeInfo | undefined, sequence?: unknown | undefined};

export type CosmosBaseV1beta1Coin = {denom?: string | undefined, amount?: string | undefined};

export type CosmosTxV1beta1Fee = {amount?: Array<CosmosBaseV1beta1Coin> | undefined, gasLimit?: unknown | undefined, payer?: string | undefined, granter?: string | undefined};

export type CosmosTxV1beta1Tip = {amount?: Array<CosmosBaseV1beta1Coin> | undefined, tipper?: string | undefined};

export type CosmosTxV1beta1AuthInfo = {signerInfos?: Array<CosmosTxV1beta1SignerInfo> | undefined, fee?: CosmosTxV1beta1Fee | undefined, tip?: CosmosTxV1beta1Tip | undefined};

export type CosmosTxV1beta1Tx = {body?: CosmosTxV1beta1TxBody | undefined, authInfo?: CosmosTxV1beta1AuthInfo | undefined, signatures?: Array<string> | undefined};

export type CosmosTxV1beta1TxEncodeRequest = {tx?: CosmosTxV1beta1Tx | undefined};

export type CreateApiCosmosTxV1beta1EncodeArgs = {body: CosmosTxV1beta1TxEncodeRequest};

export type CreateApiCosmosTxV1beta1EncodeOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const cosmosTxV1beta1TxEncodeResponse = z.object({txBytes: z.string().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
};

/**
 * TxEncode encodes the transaction.
 * 
 * POST /cosmos/tx/v1beta1/encode
 */
export const createApiCosmosTxV1beta1Encode = async (args: CreateApiCosmosTxV1beta1EncodeArgs, options: CreateApiCosmosTxV1beta1EncodeOptions) => {
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/encode${query.size > 0 ? `?${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(cosmosTxV1beta1TxEncodeResponse, await res.json())
};