#!/bin/sh
# Sets up and builds libcec to be used with Home Assistant.
# Dependencies that need to be installed:
# apt-get install cmake libudev-dev libxrandr-dev swig

# Stop on errors
set -e

# Load required information about the current python environment
PYTHON_LIBDIR=$(python -c 'from distutils import sysconfig; print(sysconfig.get_config_var("LIBDIR"))')
PYTHON_LDLIBRARY=$(python -c 'from distutils import sysconfig; print(sysconfig.get_config_var("LDLIBRARY"))')
PYTHON_LIBRARY="${PYTHON_LIBDIR}/${PYTHON_LDLIBRARY}"
PYTHON_INCLUDE_DIR=$(python -c 'from distutils import sysconfig; print(sysconfig.get_python_inc())')
PYTHON_SITE_DIR=$(python -c 'from distutils import sysconfig; print(sysconfig.get_python_lib(prefix=""))')

cd "$(dirname "$0")/.."
mkdir -p build && cd build

if [ ! -d libcec ]; then
  git clone --branch release --depth 1 https://github.com/Pulse-Eight/libcec.git
fi

cd libcec
git checkout release
git pull
git submodule update --init src/platform

# Build libcec platform libs
(
    mkdir -p src/platform/build
    cd src/platform/build
    cmake ..
    make
    make install
)

# Fix upstream install hardcoded Debian path.
# See: https://github.com/Pulse-Eight/libcec/issues/288
sed -i \
    -e '/DESTINATION/s:lib/python${PYTHON_VERSION}/dist-packages:${PYTHON_SITE_DIR}:' \
    src/libcec/cmake/CheckPlatformSupport.cmake

# Build libcec
(
    mkdir -p build && cd build

    cmake \
        -DPYTHON_LIBRARY="${PYTHON_LIBRARY}" \
        -DPYTHON_INCLUDE_DIR="${PYTHON_INCLUDE_DIR}" \
        -DPYTHON_SITE_DIR="${PYTHON_SITE_DIR}" \
        ..
    make
    make install
    ldconfig
)