#!/bin/bash

# NecroHash Installer
# Installiert NecroHash und richtet den Autostart ein.

TARGET_DIR="/opt/necrohash"
USER="pi"

if [ "$EUID" -ne 0 ]; then
  echo "Bitte als root ausführen (sudo ./install.sh)"
  exit 1
fi

echo "Installing NecroHash to $TARGET_DIR..."

# 1. Systemabhängigkeiten
echo "Installing system dependencies..."
apt-get update
apt-get install -y python3 python3-venv git libncurses5-dev libudev-dev build-essential autoconf automake libtool pkg-config libcurl4-openssl-dev

# 2. Cgminer Installation (dmaxl fork for Gridseed)
if [ ! -f "/usr/local/bin/cgminer" ]; then
    echo "Compiling and installing cgminer for Gridseed..."
    cd /tmp
    git clone https://github.com/dmaxl/cgminer.git
    cd cgminer
    ./autogen.sh
    ./configure --enable-gridseed
    make
    make install
    cd ..
    rm -rf cgminer
else
    echo "cgminer found, skipping compilation."
fi

# 3. NecroHash Dateien kopieren
if [ -d "$TARGET_DIR" ]; then
    echo "Backup existing installation..."
    mv "$TARGET_DIR" "${TARGET_DIR}_backup_$(date +%s)"
fi

echo "Cloning/Copying NecroHash..."
# Wir gehen davon aus, dass wir im Repo-Ordner sind. Kopieren wir einfach alles rüber.
mkdir -p "$TARGET_DIR"
cp -r . "$TARGET_DIR"
chown -R $USER:$USER "$TARGET_DIR"

# 4. Python Environment einrichten
echo "Setting up Python environment..."
su - $USER -c "cd $TARGET_DIR && python3 -m venv venv && source venv/bin/activate && pip install -r requirements.txt"

# 5. Systemd Services einrichten

# GUI Service
cat <<EOF > /etc/systemd/system/necrohash-gui.service
[Unit]
Description=NecroHash Web GUI
After=network.target

[Service]
User=$USER
WorkingDirectory=$TARGET_DIR
ExecStart=$TARGET_DIR/start_gui.sh
Restart=always

[Install]
WantedBy=multi-user.target
EOF

# Mining Service
cat <<EOF > /etc/systemd/system/necrohash-miner.service
[Unit]
Description=NecroHash Miner (cgminer)
After=network.target necrohash-gui.service

[Service]
User=$USER
WorkingDirectory=$TARGET_DIR
# Screen session for optional attaching: screen -r necrohash
# ExecStart=screen -DmS necrohash /usr/local/bin/cgminer -c $TARGET_DIR/cgminer.conf
# Direct execution (better for logs/systemd):
ExecStart=/usr/local/bin/cgminer -c $TARGET_DIR/cgminer.conf
Restart=always
RestartSec=10

[Install]
WantedBy=multi-user.target
EOF

systemctl daemon-reload
systemctl enable necrohash-gui.service
systemctl enable necrohash-miner.service

echo "Installation complete."
echo "Edit config at $TARGET_DIR/cgminer.conf"
echo "Start services with:"
echo "  systemctl start necrohash-gui"
echo "  systemctl start necrohash-miner"