#!/usr/bin/env bash
# Builds a nightly AppImage of citron.

set -euo pipefail

# CITRON_REPO is the repository to download Citron from.
CITRON_REPO="${CITRON_REPO:-"https://git.rgst.io/mirrors/Citron.git"}"

# OUTPUT_DIR is the directory to output built artifacts to.
OUTPUT_DIR="$(pwd)/builds"
WORKING_DIR="/src/citron-nightly"

# Default flags for building Citron. We optimize for steamdeck only,
# currently.
WARNING_FLAGS="-Werror=lto-type-mismatch -Werror=strict-aliasing"
COMMON_FLAGS="-O2 -march=znver2 -mtune=znver2 -flto ${WARNING_FLAGS}"
CXX_FLAGS="${COMMON_FLAGS} -Wno-error"
C_FLAGS="${COMMON_FLAGS}"

mkdir -p "$WORKING_DIR" "$OUTPUT_DIR"

pushd "$WORKING_DIR" >/dev/null
# Clone the repo or update it if its already present
if [[ ! -e "Citron" ]]; then
  git clone --recursive "$CITRON_REPO" "Citron"
else
  pushd "Citron" >/dev/null
  git pull
  popd >/dev/null
fi

pushd "Citron" >/dev/null

GIT_COMMIT_HASH=$(git rev-parse --short HEAD)
RELEASE_NAME="nightly-steamdeck-$GIT_COMMIT_HASH"
OUTPUT_NAME="citron-$RELEASE_NAME.AppImage"

# Build citron
mkdir -p ./build
pushd "./build" >/dev/null
rm -rf deploy-linux
cmake .. -GNinja \
  -DCITRON_ENABLE_LTO=ON \
  -DCITRON_USE_BUNDLED_VCPKG=ON \
  -DCITRON_TESTS=OFF \
  -DCITRON_USE_LLVM_DEMANGLE=OFF \
  -DCMAKE_INSTALL_PREFIX=/usr \
  -DCMAKE_CXX_FLAGS="$CXX_FLAGS" \
  -DCMAKE_C_FLAGS="$C_FLAGS" \
  -DUSE_DISCORD_PRESENCE=OFF \
  -DBUNDLE_SPEEX=ON \
  -DCMAKE_BUILD_TYPE=Release

#ninja clean
ninja
ninja install
popd >/dev/null

# Package it

./appimage-builder.sh citron "$(pwd)/build"

# Include required libraries
pushd "./build/deploy-linux" >/dev/null
cp /usr/lib/libSDL3.so* AppDir/usr/lib/
wget https://github.com/AppImage/appimagetool/releases/download/continuous/appimagetool-x86_64.AppImage
chmod +x appimagetool-x86_64.AppImage
# Workaround for lack of FUSE support in WSL
./appimagetool-x86_64.AppImage --appimage-extract
chmod +x ./squashfs-root/AppRun
./squashfs-root/AppRun AppDir
popd >/dev/null

# Move the most recently created AppImage to a fresh output folder
APPIMAGE_PATH=$(ls -t ${WORKING_DIR}/Citron/build/deploy-linux/*.AppImage 2>/dev/null | head -n 1)

if [[ -n "$APPIMAGE_PATH" ]]; then
  mv -f "$APPIMAGE_PATH" "${OUTPUT_DIR}/${OUTPUT_NAME}"
  echo "✅ Build complete! The AppImage is located in ${OUTPUT_DIR}/${OUTPUT_NAME}"
else
  echo "❌ Error: No .AppImage file found in $(pwd)/build/deploy-linux/"
  exit 1
fi

popd >/dev/null
popd >/dev/null