#!/usr/bin/env bash
# Install llm-router as a boot service: launchd on macOS, systemd (user) on Linux.
# Run from the repo root:  ./deploy/install-service.sh
set -euo pipefail
cd "$(dirname "$0")/.."
INSTALL_DIR="$(pwd)"
PATH_VAL="/opt/homebrew/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin"

fill() { sed -e "s|__INSTALL_DIR__|$INSTALL_DIR|g" -e "s|__PATH__|$PATH_VAL|g" "$1"; }

case "$(uname -s)" in
  Darwin)
    PLIST="$HOME/Library/LaunchAgents/com.llm-router.plist"
    fill deploy/com.llm-router.plist.template > "$PLIST"
    launchctl bootout "gui/$(id -u)/com.llm-router" 2>/dev/null || true
    launchctl bootstrap "gui/$(id -u)" "$PLIST"
    echo ">> installed launchd agent: $PLIST"
    echo "   status:  launchctl print gui/$(id -u)/com.llm-router | grep state"
    echo "   logs:    tail -f $INSTALL_DIR/launchd.out.log"
    echo "   remove:  launchctl bootout gui/$(id -u)/com.llm-router && rm $PLIST"
    ;;
  Linux)
    UNIT_DIR="$HOME/.config/systemd/user"; mkdir -p "$UNIT_DIR"
    fill deploy/llm-router.service.template > "$UNIT_DIR/llm-router.service"
    systemctl --user daemon-reload
    systemctl --user enable --now llm-router.service
    echo ">> installed systemd user service"
    echo "   status:  systemctl --user status llm-router"
    echo "   logs:    journalctl --user -u llm-router -f"
    echo "   remove:  systemctl --user disable --now llm-router && rm $UNIT_DIR/llm-router.service"
    echo "   (tip: 'loginctl enable-linger $USER' to run without being logged in)"
    ;;
  *) echo "Unsupported OS: $(uname -s). Run ./run.sh manually or add your own unit."; exit 1 ;;
esac