#!/usr/bin/env bash

set -u

SCRIPT_DIR="$(cd "$(dirname "${0}")" || exit 1; pwd)"
ROOT_DIR="${SCRIPT_DIR}/../../"

# shellcheck source=utility/shared/shared.sh
source "${SCRIPT_DIR}/../shared/shared.sh"

TARGET_PART='patch'

case "${1:-}" in
  "major")
    TARGET_PART='major';;
  "minor")
    TARGET_PART='minor';;
  *)
    ;;
esac

function edit_versions() {
  TMPFILE="$(mktemp outputs/XXXXXX.Cargo.toml)"

  for TARGET_FILE in "${ROOT_DIR}/crates/parser/Cargo.toml" "${ROOT_DIR}/Cargo.toml"; do
    sed \
      -e '/^version\>/s#"[^"]*"#"'"${1}"'"#' \
      -e '/^plantuml-parser\>/s#"[0-9.]*"#"'"${1}"'"#' \
      "${TARGET_FILE}" \
      > "${TMPFILE}"
    mv "${TMPFILE}" "${TARGET_FILE}"
  done
}

function semver_parts() {
  MAJOR_VERSION="${2%%.*}"
  WITHOUT_MAJOR="${2:"$(("${#MAJOR_VERSION}" + 1))"}"

  MINOR_VERSION="${WITHOUT_MAJOR%%.*}"
  PATCH_VERSION="${WITHOUT_MAJOR:"$(("${#MINOR_VERSION}" + 1))"}"

  case "${1}" in
    "major")
      echo "${MAJOR_VERSION}";;
    "minor")
      echo "${MINOR_VERSION}";;
    *)
      echo "${PATCH_VERSION}";;
  esac
}

function next_semver() {
  MAJOR_VERSION="$(semver_parts major "${2}")"
  MINOR_VERSION="$(semver_parts minor "${2}")"
  PATCH_VERSION="$(semver_parts patch "${2}")"

  case "${1}" in
    "major")
      MAJOR_VERSION="$(("${MAJOR_VERSION}" + 1))"
      MINOR_VERSION='0'
      PATCH_VERSION='0'
      ;;
    "minor")
      MINOR_VERSION="$(("${MINOR_VERSION}" + 1))"
      PATCH_VERSION='0'
      ;;
    *)
      PATCH_VERSION="$(("${PATCH_VERSION}" + 1))"
      ;;
  esac

  echo "${MAJOR_VERSION}.${MINOR_VERSION}.${PATCH_VERSION}"
}

if [ "$(current_versions | wc -l)" -gt 1 ]; then
  echo unmatch \"version\" in Cargo.toml >&2
  exit 1
fi

CURRENT_VERSION="$(current_versions)"

if [ "$(echo "${CURRENT_VERSION}" | grep -o '[0-9]*\.[0-9]*\.[0-9]*')" != "${CURRENT_VERSION}" ]; then
  echo \"version\" is unexpected format: \""${CURRENT_VERSION}"\" >&2
  exit 1
fi

NEXT_VERSION="$(next_semver "${TARGET_PART}" "${CURRENT_VERSION}")"

echo "current: ${CURRENT_VERSION}" >&2
echo "next: ${NEXT_VERSION}" >&2

edit_versions "${NEXT_VERSION}"
cargo build