#!/usr/bin/env bash
# hamclock.me Raspberry Pi setup
# Makes this Pi open hamclock.me full-screen every time it starts.
# Safe to run again (it just rewrites its own files). Nothing is deleted.
# Undo:  rm -f ~/.config/autostart/hamclock-me.desktop ~/.local/bin/hamclock-me
#        and remove the "hamclock-me" line from ~/.config/labwc/autostart or ~/.config/wayfire.ini
set -e

if [ "$(id -u)" = "0" ]; then
  echo "Run this as your normal Pi user (not with sudo)."; exit 1
fi

# Settings from the setup page. Only letters, numbers, / = & and _ - are kept.
PARAMS="$(printf '%s' "${1:-}" | tr -cd 'A-Za-z0-9/=&_-')"
URL="https://hamclock.me/"
[ -n "$PARAMS" ] && URL="https://hamclock.me/?${PARAMS}"

# Find a browser
BROWSER=""
for b in chromium-browser chromium; do
  if command -v "$b" >/dev/null 2>&1; then BROWSER="$b"; break; fi
done
if [ -z "$BROWSER" ]; then
  echo "Chromium isn't installed. Installing it (you may be asked for your password)..."
  sudo apt-get update && sudo apt-get install -y chromium-browser || sudo apt-get install -y chromium
  for b in chromium-browser chromium; do
    if command -v "$b" >/dev/null 2>&1; then BROWSER="$b"; break; fi
  done
fi
[ -z "$BROWSER" ] && { echo "Couldn't install Chromium. Install it, then run this again."; exit 1; }

# Launcher script
mkdir -p "$HOME/.local/bin"
cat > "$HOME/.local/bin/hamclock-me" <<EOF
#!/usr/bin/env bash
# Started at login by hamclock.me setup
sleep 5
# keep the screen awake
xset s off -dpms 2>/dev/null || true
exec $BROWSER --kiosk --noerrdialogs --disable-infobars --disable-session-crashed-bubble \\
  --check-for-update-interval=31536000 --password-store=basic "$URL"
EOF
chmod +x "$HOME/.local/bin/hamclock-me"

# Autostart for every Raspberry Pi OS desktop (old LXDE, Wayfire, labwc)
mkdir -p "$HOME/.config/autostart"
cat > "$HOME/.config/autostart/hamclock-me.desktop" <<EOF
[Desktop Entry]
Type=Application
Name=hamclock.me
Exec=$HOME/.local/bin/hamclock-me
X-GNOME-Autostart-enabled=true
EOF

if [ -d "$HOME/.config/labwc" ] || pgrep -x labwc >/dev/null 2>&1; then
  mkdir -p "$HOME/.config/labwc"
  touch "$HOME/.config/labwc/autostart"
  grep -q 'hamclock-me' "$HOME/.config/labwc/autostart" || echo "$HOME/.local/bin/hamclock-me &" >> "$HOME/.config/labwc/autostart"
fi
if [ -f "$HOME/.config/wayfire.ini" ]; then
  if ! grep -q 'hamclock-me' "$HOME/.config/wayfire.ini"; then
    if grep -q '^\[autostart\]' "$HOME/.config/wayfire.ini"; then
      sed -i "/^\[autostart\]/a hamclock = $HOME/.local/bin/hamclock-me" "$HOME/.config/wayfire.ini"
    else
      printf '\n[autostart]\nhamclock = %s\n' "$HOME/.local/bin/hamclock-me" >> "$HOME/.config/wayfire.ini"
    fi
  fi
fi

# Stop the screen going blank (Raspberry Pi OS only; skipped if raspi-config isn't there)
if command -v raspi-config >/dev/null 2>&1; then
  sudo raspi-config nonint do_blanking 1 2>/dev/null || true
fi

echo
echo "Done. This Pi will open:"
echo "  $URL"
echo "full-screen at startup. Restart now with:  sudo reboot"
echo "Press Alt+F4 to close the clock. 73!"