/**
 * @module index
 */
import {IAliasParams, WithId, WithProofs, WithSender} from '../transactions'
import { binary } from '@waves/marshall'
import { base58Encode, blake2b, signBytes } from '@waves/ts-lib-crypto'
import { txToProtoBytes } from '../proto-serialize'
import {addProof, convertToPairs, fee, getSenderPublicKey, networkByte, normalizeAssetId} from '../generic'
import { TSeedTypes } from '../types'
import { validate } from '../validators'
import { DEFAULT_VERSIONS } from '../defaultVersions'
import {AliasTransaction, TRANSACTION_TYPE} from '@waves/ts-types'


/* @echo DOCS */
export function alias(params: IAliasParams, seed: TSeedTypes): AliasTransaction & WithId & WithProofs
export function alias(paramsOrTx: IAliasParams & WithSender | AliasTransaction, seed?: TSeedTypes): AliasTransaction & WithId & WithProofs
export function alias(paramsOrTx: any, seed?: TSeedTypes): AliasTransaction & WithId & WithProofs{
  const type = TRANSACTION_TYPE.ALIAS
  const version = paramsOrTx.version || DEFAULT_VERSIONS.ALIAS
  const seedsAndIndexes = convertToPairs(seed)
  const senderPublicKey = getSenderPublicKey(seedsAndIndexes, paramsOrTx)

  const tx: AliasTransaction & WithId & WithProofs & {feeAssetId: string | null}= {
    type,
    version,
    senderPublicKey,
    alias: paramsOrTx.alias,
    fee: fee(paramsOrTx, 100000),
    feeAssetId: normalizeAssetId(paramsOrTx.feeAssetId),
    timestamp: paramsOrTx.timestamp || Date.now(),
    chainId: networkByte(paramsOrTx.chainId, 87),
    proofs: paramsOrTx.proofs || [],
    id: '',
  }

  validate.alias(tx)

  const bytes = version > 2 ? txToProtoBytes(tx) : binary.serializeTx(tx)
  const idBytes = version > 2 ? bytes : [bytes[0], ...bytes.slice(36, -16)]

  seedsAndIndexes.forEach(([s, i]) => addProof(tx, signBytes(s, bytes), i))

  tx.id = base58Encode(blake2b(Uint8Array.from(idBytes)))

  return tx
}