#!/bin/sh
#
# To enable this hook, copy/symlink this file to ".git/hooks/pre-commit".
#  Windows:   mklink .git\hooks\pre-commit ..\..\BuildTools\pre-commit
#  Linux/Mac: ln -s ../../BuildTools/pre-commit .git/hooks/pre-commit

set -eu

DOTNET_FORMAT_VERSION=10.0.100-rtm.25531.102
DOTNET_FORMAT_SOURCE="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet10-transport/nuget/v3/index.json"

# Per-OS tool cache location + binary suffix. Windows uses %LOCALAPPDATA% and a .exe
# suffix; Unix-likes follow the XDG basedir spec (falling back to ~/.local/share) and
# drop the suffix. Keeping the tool installed under the same logical path on both
# platforms means a single repo clone can host hook installs from either OS.
case "$(uname -s 2>/dev/null)" in
	MINGW*|MSYS*|CYGWIN*|Windows*)
		DOTNET_CACHE_ROOT="$LOCALAPPDATA"
		EXE_SUFFIX=".exe"
		;;
	*)
		DOTNET_CACHE_ROOT="${XDG_DATA_HOME:-$HOME/.local/share}"
		EXE_SUFFIX=""
		;;
esac

DOTNET_PATH="$DOTNET_CACHE_ROOT/ICSharpCode/ILSpy/dotnet-format-$DOTNET_FORMAT_VERSION"
if [ ! -d "$DOTNET_PATH" ]; then
 echo "Downloading dotnet-format $DOTNET_FORMAT_VERSION..."
 dotnet tool install --tool-path "$DOTNET_PATH" dotnet-format --version "$DOTNET_FORMAT_VERSION" --add-source "$DOTNET_FORMAT_SOURCE"
fi

DOTNET_FORMAT="$DOTNET_PATH/dotnet-format$EXE_SUFFIX"

"$DOTNET_FORMAT" --version
if [ "${1:-}" = "--format" ]; then
	# called via format.bat
	"$DOTNET_FORMAT" whitespace --no-restore --verbosity detailed ILSpy.sln
elif git diff --quiet --ignore-submodules; then
	"$DOTNET_FORMAT" whitespace --no-restore --verbosity detailed ILSpy.sln
	git add -u -- \*\*.cs
else
	echo Partial commit: only verifying formatting
	exec "$DOTNET_FORMAT" whitespace --verify-no-changes --no-restore --verbosity detailed ILSpy.sln
fi