#!/usr/bin/env bash

# Script which automates modifying source version fields.

set -euxo pipefail

if [ "$#" -ne 1 ]
then
  echo "Usage: $0 <version>"
  exit 1
fi

DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
VERSION="$1"

# Remove the patch number from the cargo lines in the readme only if it's a plain semver
if [[ "${VERSION}" =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
  MINOR="$( echo "${VERSION}" | cut -d\. -f1-2 )"
else
  MINOR="${VERSION}"
fi

VERSION_MATCHER="([a-z0-9\\.-]+)"
BILROST_CRATE_MATCHER="(bilrost|bilrost-[a-z]+)"

# Update the README.md.
sed -i -E "s/(version|bilrost) = \"${VERSION_MATCHER}\"/\1 = \"${MINOR}\"/" "${DIR}/README.md"

# Update html_root_url attributes.
sed -i -E "s~html_root_url = \"https://docs\.rs/${BILROST_CRATE_MATCHER}/${VERSION_MATCHER}\"~html_root_url = \"https://docs.rs/\1/${VERSION}\"~" \
  "${DIR}/src/lib.rs" \
  "${DIR}/bilrost-derive/src/lib.rs" \
  "${DIR}/bilrost-types/src/lib.rs"

# Update Cargo.toml version fields.
sed -i -E "s/^version = \"${VERSION_MATCHER}\"$/version = \"${VERSION}\"/" \
  "${DIR}/Cargo.toml" \
  "${DIR}/bilrost-derive/Cargo.toml" \
  "${DIR}/bilrost-types/Cargo.toml"

# Update Cargo.toml dependency versions.
sed -i -E "s/^${BILROST_CRATE_MATCHER} = \{ version = \"=${VERSION_MATCHER}\"/\1 = { version = \"=${VERSION}\"/" \
  "${DIR}/Cargo.toml" \
  "${DIR}/bilrost-derive/Cargo.toml" \
  "${DIR}/bilrost-types/Cargo.toml"

# Update first line of CHANGELOG.md
sed -i -E "1 s/^## v${VERSION_MATCHER}$/## v${VERSION}/" \
  "${DIR}/CHANGELOG.md"