#!/bin/bash
# Build the patched lan-mouse daemon into ~/.local/bin/lan-mouse-patched.
# Rationale and the upstream bug are in REBUILD.md. Called by ../install.sh.

set -euo pipefail

# Arch extra 0.11.0-1. Pinned because the patch is against these exact line numbers;
# a newer upstream may have fixed this, in which case check before repinning.
commit=0d2190e787db9e482e17d4c16fb7c00ef4841bcb
here=$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)

command -v cargo >/dev/null || {
  echo "cargo not found -- install the 'rust' package first" >&2
  exit 1
}

# Build in a throwaway dir: the source tree is a build input, not something to keep.
work=$(mktemp -d)
trap 'rm -rf "$work"' EXIT

git clone --quiet https://github.com/feschber/lan-mouse.git "$work/lan-mouse"
cd "$work/lan-mouse"
git checkout --quiet "$commit"
git apply "$here/accelerated-deltas.patch"

# GTK deliberately excluded: the daemon needs no GUI, and the signed Arch package
# still provides it at /usr/bin/lan-mouse. LTO off keeps this at ~1 min.
CARGO_PROFILE_RELEASE_LTO=false CARGO_PROFILE_RELEASE_CODEGEN_UNITS=16 \
  cargo build --release --locked --no-default-features \
  --features layer_shell_capture,wlroots_emulation

install -Dm755 target/release/lan-mouse ~/.local/bin/lan-mouse-patched
echo "installed ~/.local/bin/lan-mouse-patched"