#!/usr/bin/env rc
flag e +

cd `{dirname $0}

for(tool in awk jq npm perl seq) {
  if(! whatis $tool > /dev/null >[2=1]) {
    echo 'error: required command not found: '$tool >[1=2]
    exit 127
  }
}

file=default.nix
current=`{awk '
  $1 == "version" {
    gsub(/[";]/, "", $3)
    print $3
    exit
  }
' $file}
latest=`{npm view '@opencode/cli-darwin-arm64@latest' version --json | jq -r .}

if(! ~ $#current 1 || ! ~ $#latest 1 || ~ $latest null '') {
  echo 'opencode-v2: could not determine the current or latest version' >[1=2]
  exit 1
}

if(~ $current $latest) {
  echo 'opencode-v2: current ('$current')'
  exit 0
}

current_hashes=`{awk '
  $1 == "hash" {
    gsub(/[";]/, "", $3)
    print $3
  }
' $file}
artifacts=(cli-darwin-arm64 cli-darwin-x64-baseline cli-linux-arm64 cli-linux-x64)

if(! ~ $#current_hashes $#artifacts) {
  echo 'opencode-v2: could not determine the current artifact hashes' >[1=2]
  exit 1
}

hashes=()
for(artifact in $artifacts) {
  package='@opencode/'^$artifact^'@'^$latest
  metadata=`{npm view $package version dist.integrity --json}
  package_version=`{echo $metadata | jq -r .version}
  hash=`{echo $metadata | jq -r '."dist.integrity"'}
  if(! ~ $#package_version 1 || ! ~ $package_version $latest ||
     ! ~ $#hash 1 || ~ $hash null '') {
    echo 'opencode-v2: could not update the hash for '$artifact >[1=2]
    exit 1
  }
  hashes=($hashes $hash)
}

echo 'opencode-v2: '$current' -> '$latest

perl -0pi -e 'BEGIN { $old = shift; $new = shift } s/\Q$old\E/$new/g' \
  $current $latest $file
for(i in `{seq $#artifacts}) {
  perl -0pi -e 'BEGIN { $old = shift; $new = shift } s/\Q$old\E/$new/g' \
    $current_hashes($i) $hashes($i) $file
}