#!/bin/sh
set -eu

find ./pkg ./internal/download -type f -name '*.json' | while IFS= read -r item; do
  printf "Minimizing JSON: %s\n" "$item"

  item_dir="$(dirname "$item")"
  item_base="$(basename -- "$item" .json)"
  tmp_json="$(mktemp "$item_dir/$item_base.json.tmp.XXXXXX")"
  tmp_gz="$(mktemp "$item_dir/$item_base.gz.tmp.XXXXXX")"
  out_gz="$item_dir/$item_base.gz"
  fail() {
    echo "ERROR: $1" >&2
    rm -f "$tmp_json" "$tmp_gz"
    exit 1
  }

  # NOTE: jq returns success for empty input and writes no bytes; explicitly reject that.
  if ! jq -c --sort-keys . "$item" >"$tmp_json"; then
    fail "failed to parse JSON: $item"
  fi

  if [ ! -s "$tmp_json" ]; then
    fail "minimized JSON is empty for $item"
  fi

  if ! gzip -cn "$tmp_json" >"$tmp_gz"; then
    fail "failed to gzip JSON: $item"
  fi

  mv "$tmp_json" "$item"
  mv "$tmp_gz" "$out_gz"
done