#!/bin/bash

set -euo pipefail

usage="Usage:
  $(basename "$0") [-h] [-n network] <.wasm file> <code id> -- Verify that the deployed on-chain bytecode matches the local object file

  where:
      -h  show this help text
      -n  set the network (mainnet, testnet, devnet. defaults to \$NETWORK if set)"

network=$NETWORK
while getopts ':hn:' option; do
  case "$option" in
    h) echo "$usage"
       exit
       ;;
    n) network=$OPTARG
       ;;
    :) printf "missing argument for -%s\n" "$OPTARG" >&2
       echo "$usage" >&2
       exit 1
       ;;
   \?) printf "illegal option: -%s\n" "$OPTARG" >&2
       echo "$usage" >&2
       exit 1
       ;;
  esac
done
shift $((OPTIND - 1))


case "$network" in
  mainnet) url="https://lcd.terra.dev";;
  testnet) url="https://bombay-lcd.terra.dev";;
  devnet)  url="http://localhost:1317";;
  *) printf "Network not set. Specify with -n\n" >&2
     echo "$usage" >&2
     exit 1
     ;;
esac

[ $# -ne 2 ] && { echo "$usage" >&2; exit 1; }
obj_file=$1
code_id=$2


hash1=`curl "$url"/terra/wasm/v1beta1/codes/"$code_id" --silent | jq '.code_info.code_hash' -r | base64 -d | hexdump -v -e '/1 "%02x" '`
hash2=`sha256sum $obj_file | cut -f1 -d' '`

echo "Deployed bytecode hash (on $network):"
echo $hash1
echo "$obj_file hash:"
echo $hash2

if [ "$hash1" == "$hash2" ]; then
  printf "\033[0;32mSuccessfully verified\033[0m\n";
  exit 0;
else
  printf "\033[0;31mFailed to verify\033[0m\n";
  exit 1;
fi