#!/bin/bash

set -e

if [[ $# -ne 2 ]]; then
  echo "Usage: $0 <wrapper-path> <binary-relative-path>" >&2
  exit 1
fi

WRAPPER_PATH="$1"
BINARY_RELATIVE_PATH="$2"

mkdir -p "$(dirname "$WRAPPER_PATH")"
cat > "$WRAPPER_PATH" << EOF
#!/bin/bash
# This wrapper may be installed through a symlink in /usr/local/bin. Resolve
# symlinks before locating the Galaxy executable relative to the bundled wrapper.
wrapper_path="\${BASH_SOURCE[0]}"
while [[ -L "\$wrapper_path" ]]; do
  wrapper_dir="\$(cd -P "\$(dirname "\$wrapper_path")" && pwd)"
  wrapper_path="\$(readlink "\$wrapper_path")"
  if [[ "\$wrapper_path" != /* ]]; then
    wrapper_path="\$wrapper_dir/\$wrapper_path"
  fi
done
script_dir="\$(cd -P "\$(dirname "\$wrapper_path")" && pwd)"

# Galaxy Control has a separate argument parser from the normal Galaxy parser.
# The hidden flag selects it before normal CLI parsing or GUI startup.
# Replace the wrapper process while preserving its invocation name as argv[0].
exec -a "\$0" "\$script_dir/$BINARY_RELATIVE_PATH" --galaxyctrl "\$@"
EOF
chmod +x "$WRAPPER_PATH"