#!/usr/bin/env bash
# SmarterSheet installer for Linux - no root needed.
#
#   curl -fsSL https://smartersheet.microide.com/install-linux.sh | bash
#   curl -fsSL https://smartersheet.microide.com/install-linux.sh | bash -s -- --no-service
#
# 1. checks for Python 3.10+ (says how to get it if missing)
# 2. downloads run-smarterSheet.py into ~/.local/share/smartersheet (or $SMARTERSHEET_DIR)
# 3. runs the setup in your terminal (API token walk-through, ITM sheets, edit rights, port)
# 4. adds the command "smartersheet" to ~/.local/bin
# 5. if systemd is there: installs and starts the user service "smartersheet" so it runs in the background
#    and comes back after a reboot (--no-service skips this; then start it with: smartersheet)
#
# Uninstall: systemctl --user disable --now smartersheet; rm ~/.config/systemd/user/smartersheet.service
#            ~/.local/bin/smartersheet; rm -r ~/.local/share/smartersheet   (this also deletes your database)
set -euo pipefail

SITE="${SMARTERSHEET_SITE:-https://smartersheet.microide.com}"
DIR="${SMARTERSHEET_DIR:-$HOME/.local/share/smartersheet}"
BIN="$HOME/.local/bin"
SERVICE=1
for a in "$@"; do
  case "$a" in
    --no-service) SERVICE=0 ;;
    -h|--help) sed -n '2,16p' "$0" 2>/dev/null || true; exit 0 ;;
    *) echo "unknown option: $a" >&2; exit 2 ;;
  esac
done

say() { printf '\n== %s\n' "$*"; }

say "Checking for Python 3.10 or newer"
PY=""
for c in python3 python3.14 python3.13 python3.12 python3.11 python3.10; do
  if command -v "$c" >/dev/null 2>&1 && "$c" -c 'import sys; sys.exit(sys.version_info < (3, 10))' 2>/dev/null; then
    PY="$(command -v "$c")"; break
  fi
done
if [ -z "$PY" ]; then
  echo "Python 3.10+ was not found. Install it, then run this again:"
  echo "  Debian/Ubuntu:  sudo apt install python3"
  echo "  Fedora:         sudo dnf install python3"
  echo "  Arch:           sudo pacman -S python"
  exit 1
fi
echo "using $PY ($("$PY" -V))"

say "Downloading SmarterSheet into $DIR"
mkdir -p "$DIR" "$BIN"
if command -v curl >/dev/null 2>&1; then
  curl -fsSL "$SITE/run-smarterSheet.py" -o "$DIR/run-smarterSheet.py.part"
else
  wget -qO "$DIR/run-smarterSheet.py.part" "$SITE/run-smarterSheet.py"
fi
mv "$DIR/run-smarterSheet.py.part" "$DIR/run-smarterSheet.py"
chmod 755 "$DIR/run-smarterSheet.py"
chmod 700 "$DIR"                      # the database next to the script holds your Smartsheet token

say "Setup"
if [ -e /dev/tty ] && (exec </dev/tty) 2>/dev/null; then
  (cd "$DIR" && "$PY" run-smarterSheet.py --setup-only </dev/tty) || { echo "Setup did not finish; run: smartersheet --setup"; }
else
  echo "No terminal to ask the setup questions in; run  smartersheet --setup  yourself afterwards."
fi

cat > "$BIN/smartersheet" <<LAUNCH
#!/usr/bin/env bash
# SmarterSheet launcher (installed by $SITE/install-linux.sh)
cd "$DIR" && exec "$PY" "$DIR/run-smarterSheet.py" "\$@"
LAUNCH
chmod 755 "$BIN/smartersheet"
echo "added $BIN/smartersheet"
case ":$PATH:" in *":$BIN:"*) ;; *) echo "note: $BIN is not on your PATH - add it, or run $BIN/smartersheet";; esac

PORT=5300
[ -s "$DIR/smarterSheet_DB.sqlite3" ] && PORT="$(cd "$DIR" && "$PY" -c 'import json,sqlite3; c=sqlite3.connect("smarterSheet_DB.sqlite3"); r=c.execute("select v from settings where k=?",("port",)).fetchone(); print(json.loads(r[0]) if r else 5300)' 2>/dev/null || echo 5300)"

if [ "$SERVICE" = 1 ] && command -v systemctl >/dev/null 2>&1 && systemctl --user show-environment >/dev/null 2>&1; then
  say "Installing the background service (systemd --user)"
  mkdir -p "$HOME/.config/systemd/user"
  cat > "$HOME/.config/systemd/user/smartersheet.service" <<UNIT
[Unit]
Description=SmarterSheet (Smartsheet projects, Gantt charts, ITM tracker) on port $PORT
After=network-online.target

[Service]
WorkingDirectory=$DIR
ExecStart=$PY $DIR/run-smarterSheet.py --no-browser
Restart=on-failure
RestartSec=30

[Install]
WantedBy=default.target
UNIT
  systemctl --user daemon-reload
  systemctl --user enable smartersheet >/dev/null
  systemctl --user restart smartersheet
  echo "service: $(systemctl --user is-active smartersheet)   logs: journalctl --user -u smartersheet -f"
  echo "To keep it running while you are logged out: sudo loginctl enable-linger $USER"
  say "Done - open http://127.0.0.1:$PORT/smartsheet"
else
  say "Done - start it with:  smartersheet   then open http://127.0.0.1:$PORT/smartsheet"
fi