#!/usr/bin/env bash
# Script d’installation MeshtasticD sur Raspberry Pi OS avec preset LoRa SX1262 Waveshare
# Configuration directe dans /etc/meshtasticd/config.yaml

set -e

SERVICE_FILE="/etc/systemd/system/meshtasticd.service"
CONFIG_FILE="/etc/meshtasticd/config.yaml"

echo "=== Mise à jour du système ==="
sudo apt update && sudo apt -y upgrade

echo "=== Installation des dépendances ==="
sudo apt install -y \
    libgpiod-dev \
    libyaml-cpp-dev \
    libbluetooth-dev \
    libusb-1.0-0-dev \
    libi2c-dev \
    libuv1-dev \
    openssl \
    libssl-dev \
    libulfius-dev \
    liborcania-dev \
    avahi-daemon curl gpg

echo "=== Ajout du dépôt Meshtastic (Debian 12 Bookworm par défaut) ==="
echo 'deb http://download.opensuse.org/repositories/network:/Meshtastic:/beta/Debian_12/ /' \
  | sudo tee /etc/apt/sources.list.d/network:Meshtastic:beta.list
curl -fsSL https://download.opensuse.org/repositories/network:/Meshtastic:/beta/Debian_12/Release.key \
  | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/network_Meshtastic_beta.gpg > /dev/null

sudo apt update

echo "=== Installation de meshtasticd ==="
sudo apt install -y meshtasticd

echo "=== Création du répertoire de configuration ==="
sudo mkdir -p /etc/meshtasticd/config.d
sudo mkdir -p /etc/meshtasticd/available.d

echo "=== Écriture du fichier de configuration ==="
sudo tee "$CONFIG_FILE" > /dev/null <<'EOF'
Lora:
  Module: sx1262  # Waveshare SX126X XXXM
  DIO2_AS_RF_SWITCH: true
  CS: 21
  IRQ: 16
  Busy: 20
  Reset: 18
  # SPIbus: 0   # spidev0.0 par défaut

GPS:
  SerialPath: /dev/ttyS0

I2C:
  # Laisse vide si pas d'I2C utilisé

Display:
  # Pas de display pour l’instant

Logging:
  LogLevel: debug
  #TraceFile: /var/log/meshtasticd.json
  #AsciiLogs: true

Webserver:
  Port: 443
  RootPath: /usr/share/meshtasticd/web
  #SSLKey: /etc/meshtasticd/ssl/private_key.pem
  #SSLCert: /etc/meshtasticd/ssl/certificate.pem

General:
  MaxNodes: 200
  MaxMessageQueue: 100
  ConfigDirectory: /etc/meshtasticd/config.d/
  AvailableDirectory: /etc/meshtasticd/available.d/
EOF

echo "=== Configuration du service systemd ==="
if [ ! -f "${SERVICE_FILE}" ]; then
    sudo tee "${SERVICE_FILE}" > /dev/null <<EOF
[Unit]
Description=Meshtastic Daemon
After=network.target

[Service]
ExecStart=/usr/sbin/meshtasticd -c /etc/meshtasticd/config.yaml
Restart=always
User=root
Group=root
Type=simple

[Install]
WantedBy=multi-user.target
EOF
fi

echo "=== Activation du service meshtasticd ==="
sudo systemctl daemon-reload
sudo systemctl enable meshtasticd
sudo systemctl restart meshtasticd

echo "=== Vérification du statut ==="
sudo systemctl status meshtasticd --no-pager