#!/usr/bin/env bash
set -euo pipefail

# 1) Install system dependencies (Arch Linux)
sudo pacman -S --needed --noconfirm git rustup protobuf gcc evtest

# 2) Ensure Rust toolchain is present
rustup toolchain install stable

# 3) Determine repo URL from the current directory
#    We assume this script lives under <repo-root>/scripts/install-client.sh
REPO_DIR="$(cd "$(dirname "$0")/.." && pwd)"
REPO_URL="$(git -C "$REPO_DIR" config --get remote.origin.url)"
if [ -z "$REPO_URL" ]; then
  echo "Error: could not read git remote.origin.url from $REPO_DIR"
  exit 1
fi

# 4) Where to clone/build if not already present
WORK="$HOME/.local/src/navka"
if [ ! -d "$WORK" ]; then
  git clone "$REPO_URL" "$WORK"
else
  pushd "$WORK" >/dev/null
  git fetch --all
  git reset --hard origin/$(git -C "$WORK" rev-parse --abbrev-ref HEAD)
  popd >/dev/null
fi

# 5) Build the client
cd "$WORK"
cargo build --release --manifest-path client/Cargo.toml

# 6) Install the client binary
install -Dm755 client/target/release/navka-client  ~/.local/bin/navka-client

# 7) Create and enable a user-level systemd service
mkdir -p ~/.config/systemd/user
cat > ~/.config/systemd/user/navka-client.service <<'EOF'
[Unit]
Description=Navka Client (keyboard/mouse → navka-server)
After=network.target

[Service]
ExecStart=%h/.local/bin/navka-client
Restart=on-failure

[Install]
WantedBy=default.target
EOF

systemctl --user daemon-reload
systemctl --user enable --now navka-client.service

echo "navka-client installed and running."