#!/usr/bin/env bash
#
# Build an LTS DEB package for Ubuntu 26.04
# Migrated from jenkins_builder.sh (openSUSE) to Ubuntu/DEB ecosystem
#
# Required environment (set by the Jenkinsfile or `docker run -e ...`):
#   PROJECT          LTS flavor: qatar | ahtc | guez (cmake -D_pname)
#   OS_VERSION       Ubuntu version, e.g. 26.04
#   LTS_VERSION      Major.minor LTS version, e.g. 1.0
#   GUEZ_MODE        ON | OFF — cmake -DGUEZ_MODE
#   WORKSPACE        Jenkins workspace path (set automatically by Jenkins)
#   PROJECT_BASE_DIR Path used by make_rpm_ubuntu26.py as the source tree
#   BUILD_NUMBER     Jenkins build number (used as release in DEB version)
#   BUILD_TAG        Jenkins build tag
#
# IMPORTANT: Source files under git management must NEVER be deleted.
# Only the temporary staging directory (deb_stage) is removed.

set -eo pipefail

: "${PROJECT:?PROJECT must be set}"
: "${OS_VERSION:?OS_VERSION must be set}"
: "${LTS_VERSION:?LTS_VERSION must be set}"
: "${GUEZ_MODE:?GUEZ_MODE must be set}"
: "${WORKSPACE:?WORKSPACE must be set}"
: "${PROJECT_BASE_DIR:?PROJECT_BASE_DIR must be set}"

echo "Building LTS ${LTS_VERSION}-${BUILD_NUMBER:-?} DEB for project '${PROJECT}' (Ubuntu ${OS_VERSION})."
echo "PROJECT_BASE_DIR=${PROJECT_BASE_DIR}"

# Stage workspace as a clean copy under PROJECT_BASE_DIR/deb_stage.
# Only the staging subdirectory is removed — never the workspace itself,
# which contains git-managed source files that must not be deleted.
STAGE_DIR="${PROJECT_BASE_DIR}/deb_stage"
rm -rf "${STAGE_DIR}"
mkdir -p "${STAGE_DIR}"
tar --exclude='./rpms' --exclude='./.git' --exclude='./build' \
    --exclude='./deb_build_tmp' --exclude='./deb_stage' --exclude='./packages-out' \
    -cf - -C "${WORKSPACE}" . | tar -xf - -C "${STAGE_DIR}"

export VERSION_DATE
VERSION_DATE=$(date +%Y-%m-%d)

# Real CMake project root inside the staged tree
SOURCE_DIR="${STAGE_DIR}/qt-migration-legatus/qt6-after/qt6-migrated-legatus"
if [ ! -f "${SOURCE_DIR}/CMakeLists.txt" ]; then
    echo "ERROR: CMakeLists.txt not found in staged source dir: ${SOURCE_DIR}" >&2
    exit 1
fi

# Output is isolated per OS version so parallel OS builds of the same project
cd "${WORKSPACE}/rpmbuild"
python3 make_rpm_ubuntu26.py -c LTS \
    --project_name "${PROJECT}" \
    --version "${LTS_VERSION}" \
    --output_dir "${WORKSPACE}/rpms/${PROJECT}/${OS_VERSION}/" \
    --source_dir "${SOURCE_DIR}" \
    --cmake_build_flags "-DUSE_IPO=ON -DUSE_UNITY_BUILD=ON -DGUEZ_MODE=${GUEZ_MODE} -DBUILD_WLS=ON -DPostgreSQL_TYPE_INCLUDE_DIR=/usr/include/postgresql/ -DRELEASE_BUILD=ON" \
    --build_number "${BUILD_NUMBER:-1}"

# Copy produced DEB packages to the dedicated packages-out mount so they
# are available on the host after the container exits.
PACKAGE_OUT_DIR="${PACKAGE_OUTPUT_DIR:-/workspace/packages-out}"
mkdir -p "${PACKAGE_OUT_DIR}"
shopt -s nullglob
for deb in "${WORKSPACE}/rpms/${PROJECT}/${OS_VERSION}/"*.deb; do
    cp -f "${deb}" "${PACKAGE_OUT_DIR}/"
done
shopt -u nullglob

echo "DEB packages produced for '${PROJECT}' (Ubuntu ${OS_VERSION}):"
ls -lhR "${WORKSPACE}/rpms/${PROJECT}/${OS_VERSION}/"
echo "DEB packages copied to ${PACKAGE_OUT_DIR}:"
ls -lh "${PACKAGE_OUT_DIR}/"