#!/usr/bin/env bash

# Abort at the first error.
set -e

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

# Make sure that environment variables are set properly
source /opt/rh/devtoolset-8/enable
export PATH="${CURA_BUILD_ENV_PATH}/bin:${PATH}"
export PKG_CONFIG_PATH="${CURA_BUILD_ENV_PATH}/lib/pkgconfig:${PKG_CONFIG_PATH}"

cd "${PROJECT_DIR}"



#
# Clone Uranium and set PYTHONPATH first
#

# Check the branch to use for Uranium.
# It tries the following branch names and uses the first one that's available.
#  - GITHUB_HEAD_REF: the branch name of a PR. If it's not a PR, it will be empty.
#  - GITHUB_BASE_REF: the branch a PR is based on. If it's not a PR, it will be empty.
#  - GITHUB_REF:      the branch name if it's a branch on the repository;
#                     refs/pull/123/merge if it's a pull_request.
#  - master:          the master branch. It should always exist.

# For debugging.
echo "GITHUB_REF: ${GITHUB_REF}"
echo "GITHUB_HEAD_REF: ${GITHUB_HEAD_REF}"
echo "GITHUB_BASE_REF: ${GITHUB_BASE_REF}"

GIT_REF_NAME_LIST=( "${GITHUB_HEAD_REF}" "${GITHUB_BASE_REF}" "${GITHUB_REF}" "master" )
for git_ref_name in "${GIT_REF_NAME_LIST[@]}"
do
  if [ -z "${git_ref_name}" ]; then
    continue
  fi
  git_ref_name="$(basename "${git_ref_name}")"
  # Skip refs/pull/1234/merge as pull requests use it as GITHUB_REF
  if [[ "${git_ref_name}" == "merge" ]]; then
    echo "Skip [${git_ref_name}]"
    continue
  fi
  URANIUM_BRANCH="${git_ref_name}"
  output="$(git ls-remote --heads https://github.com/Ultimaker/Uranium.git "${URANIUM_BRANCH}")"
  if [ -n "${output}" ]; then
    echo "Found Uranium branch [${URANIUM_BRANCH}]."
    break
  else
    echo "Could not find Uranium branch [${URANIUM_BRANCH}], try next."
  fi
done

echo "Using Uranium branch ${URANIUM_BRANCH} ..."
git clone --depth=1 -b "${URANIUM_BRANCH}" https://github.com/Ultimaker/Uranium.git "${PROJECT_DIR}"/Uranium
export PYTHONPATH="${PROJECT_DIR}/Uranium:.:${PYTHONPATH}"

mkdir build
cd build
cmake3 \
    -DCMAKE_BUILD_TYPE=Debug \
    -DCMAKE_PREFIX_PATH="${CURA_BUILD_ENV_PATH}" \
    -DURANIUM_DIR="${PROJECT_DIR}/Uranium" \
    -DBUILD_TESTS=ON \
    -DPRINT_PLUGIN_LIST=OFF \
    -DGENERATE_TRANSLATIONS=OFF \
    ..
make