#!/usr/bin/env bash
set -euo pipefail

release_type() {
  local current="${1#v}"
  local baseline="${2#v}"
  local current_major current_minor baseline_major baseline_minor

  IFS='.' read -r current_major current_minor _ <<< "${current}"
  IFS='.' read -r baseline_major baseline_minor _ <<< "${baseline}"

  if [ "${current_major}" != "${baseline_major}" ]; then
    printf '%s\n' major
  elif [ "${current_minor}" != "${baseline_minor}" ]; then
    printf '%s\n' minor
  else
    printf '%s\n' patch
  fi
}

run_self_test() {
  [ "$(release_type v2.0.0 v1.9.9)" = major ]
  [ "$(release_type v1.3.0 v1.2.9)" = minor ]
  [ "$(release_type v1.2.4 v1.2.3)" = patch ]
}

if [ "${1:-}" = "--self-test" ]; then
  run_self_test
  echo "SemVer release-type self-test passed"
  exit 0
fi

release_tag="${1:?release tag is required}"
git rev-parse --verify "${release_tag}^{commit}" >/dev/null

baseline_tag="$({ git tag --merged "${release_tag}" --sort=-version:refname | grep -Fxv "${release_tag}" || true; } | head -n 1)"
if [ -z "${baseline_tag}" ]; then
  echo "No earlier SemVer tag before ${release_tag}; skipping baseline comparison"
  exit 0
fi

release_kind="$(release_type "${release_tag}" "${baseline_tag}")"
for package in \
  aria2-rust-pro-cli \
  aria2-rust-pro-compat \
  aria2-rust-pro-core \
  aria2-rust-pro-protocol \
  aria2-rust-pro-rpc \
  aria2-rust-pro-storage; do
  cargo semver-checks check-release \
    --package "${package}" \
    --baseline-rev "${baseline_tag}" \
    --release-type "${release_kind}"
done