install.sh

#!/usr/bin/env bash
# install.sh — MeshEliza installer
#
# Supports:
#   - Raspberry Pi OS (Lite or Desktop)
#   - Ubuntu 22.04 / 24.04 (and derivatives: Mint, Pop!_OS, etc.)
#
# Both platforms are Debian-based so the same apt-get commands apply.
#
# Usage:
#   bash install.sh
#
# Run as your normal user (not root). sudo is invoked only where needed.
#
# After installation, use the generated start script to launch the app:
#   ./mesheliza.sh          # from this directory, or
#   ~/mesheliza.sh          # if you chose to copy it to your home dir
#
# On Raspberry Pi only: you may also opt in to auto-launch on tty1
# (the physical screen), so the app starts automatically on boot login.

set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
VENV_DIR="$HOME/.venv/mesheliza"
START_SCRIPT="$SCRIPT_DIR/mesheliza.sh"

# ------------------------------------------------------------------ #
# Detect platform                                                      #
# ------------------------------------------------------------------ #
IS_PI=false
if grep -qi "raspberry" /proc/device-tree/model 2>/dev/null \
   || grep -qi "raspbian\|raspberry" /etc/os-release 2>/dev/null; then
    IS_PI=true
fi

if $IS_PI; then
    PLATFORM="Raspberry Pi"
else
    PLATFORM="Ubuntu / Debian"
fi

echo "=== MeshEliza Installer ==="
echo ">>> Detected platform: $PLATFORM"
echo ""

# ------------------------------------------------------------------ #
# 1. System dependencies                                               #
# ------------------------------------------------------------------ #
echo ">>> Installing system packages..."
sudo apt-get update -qq
sudo apt-get install -y \
    python3-pip \
    python3-venv \
    libglib2.0-dev \
    bluetooth \
    libbluetooth-dev \
    bluez

# Ensure the Bluetooth service is running (important on Ubuntu where
# it may not start automatically after install)
sudo systemctl enable bluetooth --quiet 2>/dev/null || true
sudo systemctl start  bluetooth         2>/dev/null || true

# ------------------------------------------------------------------ #
# 2. Python virtual environment                                        #
# ------------------------------------------------------------------ #
echo ">>> Creating virtualenv at $VENV_DIR..."
python3 -m venv "$VENV_DIR"
source "$VENV_DIR/bin/activate"

# ------------------------------------------------------------------ #
# 3. Install Python packages                                           #
# ------------------------------------------------------------------ #
echo ">>> Installing Python dependencies..."
pip install --upgrade pip --quiet
pip install -r "$SCRIPT_DIR/requirements.txt" --quiet
pip install -e "$SCRIPT_DIR" --quiet

# ------------------------------------------------------------------ #
# 4. Verify meshtastic installation                                    #
# ------------------------------------------------------------------ #
echo ">>> Verifying meshtastic Python library..."
if python -c "import meshtastic" 2>/dev/null; then
    MESH_VER=$(python -c "import meshtastic; print(meshtastic.__version__)" 2>/dev/null || echo "unknown")
    echo "    OK: meshtastic $MESH_VER"
else
    echo ""
    echo "ERROR: The meshtastic Python library did not install correctly."
    echo "Check the pip output above for errors, then re-run install.sh."
    exit 1
fi

echo ">>> Verifying meshtastic CLI command..."
if command -v meshtastic >/dev/null 2>&1; then
    echo "    OK: $(command -v meshtastic)"
else
    echo ""
    echo "ERROR: The meshtastic CLI command was not found in the virtualenv."
    echo "Try running: pip install --force-reinstall meshtastic"
    exit 1
fi

# ------------------------------------------------------------------ #
# 5. Serial port access                                               #
# ------------------------------------------------------------------ #
echo ">>> Adding $USER to dialout group (serial/USB radio access)..."
sudo usermod -aG dialout "$USER"

# ------------------------------------------------------------------ #
# 6. Bluetooth access                                                  #
# ------------------------------------------------------------------ #
echo ">>> Adding $USER to bluetooth group..."
sudo usermod -aG bluetooth "$USER"

# ------------------------------------------------------------------ #
# 7. Generate start script                                             #
# ------------------------------------------------------------------ #
echo ">>> Generating start script at $START_SCRIPT..."
cat > "$START_SCRIPT" << STARTSCRIPT
#!/usr/bin/env bash
# mesheliza.sh — launch MeshEliza
# Works on Raspberry Pi OS and Ubuntu.
# Generated by install.sh — safe to re-run install.sh to regenerate.

VENV="$VENV_DIR"
APP_DIR="$SCRIPT_DIR"

# Require an interactive terminal — Textual cannot run without one
if ! [[ -t 0 && -t 1 ]]; then
    echo "ERROR: MeshEliza requires an interactive terminal (stdin/stdout must be a TTY)." >&2
    exit 1
fi

# Ensure a capable TERM for Textual rendering
if [[ "\$TERM" == "dumb" || -z "\$TERM" ]]; then
    export TERM=xterm-256color
fi

if [[ ! -f "\$VENV/bin/activate" ]]; then
    echo "ERROR: virtualenv not found at \$VENV"
    echo "Please re-run install.sh"
    exit 1
fi

source "\$VENV/bin/activate"
cd "\$APP_DIR"

# At boot, wait up to 10 s for a USB serial device to enumerate if serial
# is the configured transport.  Harmless no-op once the device is present.
CONFIG="\$HOME/.config/mesheliza/config.json"
if grep -q '"default_transport".*"serial"' "\$CONFIG" 2>/dev/null; then
    if ! ls /dev/ttyUSB* /dev/ttyACM* >/dev/null 2>&1; then
        echo "Waiting for USB serial device..."
        for _i in \$(seq 1 10); do
            ls /dev/ttyUSB* /dev/ttyACM* >/dev/null 2>&1 && break
            sleep 1
        done
    fi
fi

exec python -m meshtty.main "\$@"
STARTSCRIPT
chmod +x "$START_SCRIPT"
echo ">>> Start script created: $START_SCRIPT"

# ------------------------------------------------------------------ #
# 8. Pi-only: optional auto-launch on tty1                            #
# ------------------------------------------------------------------ #
if $IS_PI; then
    echo ""
    echo ">>> Raspberry Pi detected."
    read -r -p ">>> Auto-launch MeshEliza on tty1 login (physical screen)? [y/N] " answer
    if [[ "${answer,,}" == "y" ]]; then
        BASH_PROFILE="$HOME/.bash_profile"
        LAUNCH_BLOCK="
# MeshEliza auto-launch on tty1 (physical Pi screen)
if [[ \"\$(tty)\" == \"/dev/tty1\" ]]; then
    export TERM=xterm-256color
    while true; do
        $START_SCRIPT
        sleep 2
    done
fi"
        # Check both .bash_profile and .bashrc to avoid duplicating an older install
        if ! grep -q "mesheliza auto-launch" "$BASH_PROFILE" 2>/dev/null \
           && ! grep -q "mesheliza auto-launch" "$HOME/.bashrc" 2>/dev/null; then
            echo "$LAUNCH_BLOCK" >> "$BASH_PROFILE"
            echo ">>> Added auto-launch block to $BASH_PROFILE"
        else
            echo ">>> Auto-launch already present in shell profile, skipping."
        fi
    fi
fi

# ------------------------------------------------------------------ #
# Done                                                                 #
# ------------------------------------------------------------------ #
echo ""
echo "=== Installation complete ==="
echo ""
echo "IMPORTANT: Log out and back in for group membership to take effect."
echo "(This is required for serial port and Bluetooth access.)"
echo ""
echo "To test your radio connection before launching MeshEliza:"
echo "  source $VENV_DIR/bin/activate"
echo "  meshtastic --port /dev/ttyUSB0 --info   # adjust port as needed"
echo "  deactivate"
echo ""
echo "To launch MeshEliza:"
echo "  $START_SCRIPT"
echo ""
if ! $IS_PI; then
    echo "Ubuntu notes:"
    echo "  - Run in any terminal emulator (GNOME Terminal, Konsole, Kitty, etc.)"
    echo "  - SSH sessions are also fully supported"
    echo "  - If Bluetooth fails, check: sudo systemctl status bluetooth"
    echo ""
fi
echo "Logs are written to: /tmp/mesheliza.log"