#!/usr/bin/env bash
# scripts/check-release-version.sh
# Checks release version/tag alignment before and after release.
# This keeps crate metadata, package metadata, local tag, and origin tag
# on the same release point before crates.io publish.
set -euo pipefail

ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
cd "$ROOT"

require_pushed_tag=0

usage() {
  echo "usage: $0 [--require-pushed-tag]"
}

if [[ "${1:-}" == "--require-pushed-tag" ]]; then
  require_pushed_tag=1
  shift
fi

if [[ "$#" -ne 0 ]]; then
  usage >&2
  exit 2
fi

cargo_version="$(
  cargo metadata --no-deps --format-version 1 \
    | node -e '
let input = "";
process.stdin.setEncoding("utf8");
process.stdin.on("data", (chunk) => {
  input += chunk;
});
process.stdin.on("end", () => {
  const metadata = JSON.parse(input);
  const pkg = metadata.packages.find((item) => item.name === "ic-sqlite-vfs");
  if (!pkg || typeof pkg.version !== "string") {
    process.exit(1);
  }
  process.stdout.write(pkg.version);
});
'
)"

package_version="$(
  node -e '
const fs = require("fs");
const pkg = JSON.parse(fs.readFileSync("package.json", "utf8"));
if (typeof pkg.version !== "string") {
  process.exit(1);
}
process.stdout.write(pkg.version);
'
)"

if [[ "$cargo_version" != "$package_version" ]]; then
  echo "Cargo.toml version ($cargo_version) differs from package.json version ($package_version)" >&2
  exit 1
fi

expected_tag="v${cargo_version}"
exact_tags="$(git tag --points-at HEAD)"

if [[ -n "$exact_tags" ]]; then
  if ! grep -Fxq "$expected_tag" <<<"$exact_tags"; then
    echo "HEAD has tag(s), but expected $expected_tag:" >&2
    echo "$exact_tags" >&2
    exit 1
  fi

  unexpected_release_tags="$(grep -E '^v[0-9]+[.][0-9]+[.][0-9]+' <<<"$exact_tags" | grep -Fxv "$expected_tag" || true)"
  if [[ -n "$unexpected_release_tags" ]]; then
    echo "HEAD has unexpected release tag(s):" >&2
    echo "$unexpected_release_tags" >&2
    exit 1
  fi
fi

if [[ "$require_pushed_tag" -eq 0 ]]; then
  exit 0
fi

if ! grep -Fxq "$expected_tag" <<<"$exact_tags"; then
  echo "HEAD is not tagged with $expected_tag" >&2
  exit 1
fi

local_tag_commit="$(git rev-parse "refs/tags/${expected_tag}^{commit}")"
remote_tag_commit="$(
  git ls-remote --tags origin "refs/tags/${expected_tag}^{}" \
    | awk -v ref="refs/tags/${expected_tag}^{}" '$2 == ref { print $1 }'
)"

if [[ -z "$remote_tag_commit" ]]; then
  remote_tag_commit="$(
    git ls-remote --tags origin "refs/tags/${expected_tag}" \
      | awk -v ref="refs/tags/${expected_tag}" '$2 == ref { print $1 }'
  )"
fi

if [[ -z "$remote_tag_commit" ]]; then
  echo "origin is missing tag $expected_tag" >&2
  exit 1
fi

if [[ "$local_tag_commit" != "$remote_tag_commit" ]]; then
  echo "local tag $expected_tag ($local_tag_commit) differs from origin ($remote_tag_commit)" >&2
  exit 1
fi