#!/bin/bash

set -e

pushd "$(dirname "$0")"

# Check if environment variables are defined
if [[ -z $NAME || -z $RUNNER_OS || -z $FLAGS ]]; then
    echo "One or more required environment variables are not defined."
    exit 1
fi

if [[ $RUNNER_OS == 'Windows' ]]; then
    SUDO=""
else
    SUDO=$(which sudo || exit 0)
fi

export DEBIAN_FRONTEND=noninteractive

if [[ $RUNNER_OS == 'Linux' ]]; then
# Setup Linux dependencies
    if [[ $TARGET_APT_ARCH == :i386 ]]; then
        $SUDO dpkg --add-architecture i386
    fi

    $SUDO apt-get update -y -qq

    if [[ $NAME != 'linux-x86' && $NAME != 'linux-x64' ]]; then
        GCC="gcc"
        GPP="g++"
    else
        GCC="gcc-multilib"
        GPP="g++-multilib"
    fi

    $SUDO apt-get install -y \
        $GCC \
        $GPP \
        git \
        cmake \
        ninja-build \
        wayland-scanner++ \
        wayland-protocols \
        meson \
        pkg-config$TARGET_APT_ARCH \
        libasound2-dev$TARGET_APT_ARCH \
        libdbus-1-dev$TARGET_APT_ARCH \
        libegl1-mesa-dev$TARGET_APT_ARCH \
        libgl1-mesa-dev$TARGET_APT_ARCH \
        libgles2-mesa-dev$TARGET_APT_ARCH \
        libglu1-mesa-dev$TARGET_APT_ARCH \
        libgtk-3-dev$TARGET_APT_ARCH \
        libibus-1.0-dev$TARGET_APT_ARCH \
        libpango1.0-dev$TARGET_APT_ARCH \
        libpulse-dev$TARGET_APT_ARCH \
        libsndio-dev$TARGET_APT_ARCH \
        libudev-dev$TARGET_APT_ARCH \
        libwayland-dev$TARGET_APT_ARCH \
        libx11-dev$TARGET_APT_ARCH \
        libxcursor-dev$TARGET_APT_ARCH \
        libxext-dev$TARGET_APT_ARCH \
        libxi-dev$TARGET_APT_ARCH \
        libxinerama-dev$TARGET_APT_ARCH \
        libxkbcommon-dev$TARGET_APT_ARCH \
        libxrandr-dev$TARGET_APT_ARCH \
        libxss-dev$TARGET_APT_ARCH \
        libxt-dev$TARGET_APT_ARCH \
        libxv-dev$TARGET_APT_ARCH \
        libxxf86vm-dev$TARGET_APT_ARCH \
        libdrm-dev$TARGET_APT_ARCH \
        libgbm-dev$TARGET_APT_ARCH \
        libpulse-dev$TARGET_APT_ARCH \
        libpipewire-0.3-dev$TARGET_APT_ARCH \
        libdecor-0-dev$TARGET_APT_ARCH

    git config --global --add safe.directory /workspace/External/SDL
    git config --global --add safe.directory /workspace/External/SDL_image
    git config --global --add safe.directory /workspace/External/SDL_ttf
fi

# Build SDL
pushd SDL
git reset --hard HEAD || echo "Failed to clean up the repository"

if [[ $RUNNER_OS == 'Windows' ]]; then
    echo "Patching SDL to not include gameinput.h"
    sed -i 's/#include <gameinput.h>/#_include <gameinput.h>/g' CMakeLists.txt
fi

cmake -B build $FLAGS -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DSDL_SHARED_ENABLED_BY_DEFAULT=ON -DSDL_STATIC_ENABLED_BY_DEFAULT=ON
cmake --build build/ --config Release
$SUDO cmake --install build/ --prefix install_output --config Release
popd

# Move build lib into correct folders
if [[ $RUNNER_OS == 'Windows' ]]; then
    cp SDL/install_output/bin/SDL3.dll ../native/$NAME/SDL3.dll
elif [[ $RUNNER_OS == 'Linux' ]]; then
    cp SDL/install_output/lib/libSDL3.so ../native/$NAME/libSDL3.so
elif [[ $RUNNER_OS == 'macOS' ]]; then
    cp SDL/install_output/lib/libSDL3.dylib ../native/$NAME/libSDL3.dylib
fi

# Use the correct CMAKE_PREFIX_PATH for SDL_image and SDL_ttf, probably due differences in Cmake versions
if [[ $RUNNER_OS == 'Windows' ]]; then
    CMAKE_PREFIX_PATH="../SDL/install_output/cmake/"
elif [[ $RUNNER_OS == 'Linux' ]]; then
    CMAKE_PREFIX_PATH="../SDL/install_output/lib/cmake/"
elif [[ $RUNNER_OS == 'macOS' ]]; then
    CMAKE_PREFIX_PATH="../SDL/install_output/lib/cmake/"
fi

# Build SDL_mixer
pushd SDL_mixer
git reset --hard HEAD
cmake -B build $FLAGS -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DSDL_SHARED_ENABLED_BY_DEFAULT=ON -DSDL_STATIC_ENABLED_BY_DEFAULT=ON -DCMAKE_PREFIX_PATH=$CMAKE_PREFIX_PATH -DSDLMIXER_VENDORED=ON
cmake --build build/ --config Release
$SUDO cmake --install build/ --prefix install_output --config Release
popd

# Move build lib into correct folders
if [[ $RUNNER_OS == 'Windows' ]]; then
    cp SDL_mixer/install_output/bin/SDL3_mixer.dll ../native/$NAME/SDL3_mixer.dll
elif [[ $RUNNER_OS == 'Linux' ]]; then
    cp SDL_mixer/install_output/lib/libSDL3_mixer.so ../native/$NAME/libSDL3_mixer.so
elif [[ $RUNNER_OS == 'macOS' ]]; then
    cp SDL_mixer/install_output/lib/libSDL3_mixer.dylib ../native/$NAME/libSDL3_mixer.dylib
fi

# Build SDL_image
pushd SDL_image
git reset --hard HEAD
# -DSDLIMAGE_AVIF=OFF is used because windows requires special setup to build avif support (nasm)
# TODO: Add support for avif on windows (VisualC script uses dynamic imports)
cmake -B build $FLAGS -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DSDL_SHARED_ENABLED_BY_DEFAULT=ON -DSDL_STATIC_ENABLED_BY_DEFAULT=ON -DCMAKE_PREFIX_PATH=$CMAKE_PREFIX_PATH -DSDLIMAGE_AVIF=OFF -DSDLIMAGE_DEPS_SHARED=OFF -DSDLIMAGE_VENDORED=ON
cmake --build build/ --config Release
$SUDO cmake --install build/ --prefix install_output --config Release
popd

# Move build lib into correct folders
if [[ $RUNNER_OS == 'Windows' ]]; then
    cp SDL_image/install_output/bin/SDL3_image.dll ../native/$NAME/SDL3_image.dll
elif [[ $RUNNER_OS == 'Linux' ]]; then
    cp SDL_image/install_output/lib/libSDL3_image.so ../native/$NAME/libSDL3_image.so
elif [[ $RUNNER_OS == 'macOS' ]]; then
    cp SDL_image/install_output/lib/libSDL3_image.dylib ../native/$NAME/libSDL3_image.dylib
fi

# Build SDL_ttf
pushd SDL_ttf
git reset --hard HEAD
cmake -B build $FLAGS -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DSDL_SHARED_ENABLED_BY_DEFAULT=ON -DSDL_STATIC_ENABLED_BY_DEFAULT=ON -DCMAKE_PREFIX_PATH=$CMAKE_PREFIX_PATH -DCMAKE_POLICY_VERSION_MINIMUM=3.5 -DSDLTTF_VENDORED=ON
cmake --build build/ --config Release
$SUDO cmake --install build/ --prefix install_output --config Release
popd

# Move build lib into correct folders
if [[ $RUNNER_OS == 'Windows' ]]; then
    cp SDL_ttf/install_output/bin/SDL3_ttf.dll ../native/$NAME/SDL3_ttf.dll
elif [[ $RUNNER_OS == 'Linux' ]]; then
    cp SDL_ttf/install_output/lib/libSDL3_ttf.so ../native/$NAME/libSDL3_ttf.so
elif [[ $RUNNER_OS == 'macOS' ]]; then
    cp SDL_ttf/install_output/lib/libSDL3_ttf.dylib ../native/$NAME/libSDL3_ttf.dylib
fi

popd