import { type ChainFormatters } from '../../types/chain.js'
import type { Hash } from '../../types/misc.js'
import type { RpcTransaction } from '../../types/rpc.js'
import { hexToBigInt } from '../../utils/encoding/fromHex.js'
import { numberToHex } from '../../utils/encoding/toHex.js'
import { defineBlock } from '../../utils/formatters/block.js'
import {
  defineTransaction,
  formatTransaction,
} from '../../utils/formatters/transaction.js'
import { defineTransactionRequest } from '../../utils/formatters/transactionRequest.js'
import type {
  CeloBlockOverrides,
  CeloRpcTransaction,
  CeloRpcTransactionRequest,
  CeloTransaction,
  CeloTransactionRequest,
} from './types.js'
import { isCIP42, isCIP64 } from './utils.js'

export const formatters = {
  block: /*#__PURE__*/ defineBlock({
    exclude: ['difficulty', 'gasLimit', 'mixHash', 'nonce', 'uncles'],
    format(
      args: CeloBlockOverrides & {
        transactions: Hash[] | CeloRpcTransaction[]
      },
    ): CeloBlockOverrides & {
      transactions: Hash[] | CeloTransaction[]
    } {
      const transactions = args.transactions?.map((transaction) => {
        if (typeof transaction === 'string') return transaction
        return {
          ...formatTransaction(transaction as RpcTransaction),
          feeCurrency: transaction.feeCurrency,
          ...(transaction.type !== '0x7b'
            ? {
                gatewayFee: transaction.gatewayFee
                  ? hexToBigInt(transaction.gatewayFee)
                  : null,
                gatewayFeeRecipient: transaction.gatewayFeeRecipient || null,
              }
            : {}),
        }
      }) as Hash[] | CeloTransaction[]
      return {
        randomness: args.randomness,
        transactions,
      }
    },
  }),
  transaction: /*#__PURE__*/ defineTransaction({
    format(args: CeloRpcTransaction): CeloTransaction {
      const transaction = { feeCurrency: args.feeCurrency } as CeloTransaction

      if (args.type === '0x7b') transaction.type = 'cip64'
      else {
        if (args.type === '0x7c') transaction.type = 'cip42'

        transaction.gatewayFee = args.gatewayFee
          ? hexToBigInt(args.gatewayFee)
          : null
        transaction.gatewayFeeRecipient = args.gatewayFeeRecipient
      }

      return transaction
    },
  }),

  transactionRequest: /*#__PURE__*/ defineTransactionRequest({
    format(args: CeloTransactionRequest): CeloRpcTransactionRequest {
      const request = {
        feeCurrency: args.feeCurrency,
      } as CeloRpcTransactionRequest

      if (isCIP64(args)) request.type = '0x7b'
      else {
        if (isCIP42(args)) request.type = '0x7c'

        request.gatewayFee =
          typeof args.gatewayFee !== 'undefined'
            ? numberToHex(args.gatewayFee)
            : undefined
        request.gatewayFeeRecipient = args.gatewayFeeRecipient
      }

      return request
    },
  }),
} as const satisfies ChainFormatters