#!/bin/bash
set -euo pipefail

# Prodactive Agent Installer - Linux

SERVER_URL="https://agent.prodactive.app"
API_KEY="29ef8f22b694089df98a20e473685ef31a6d215ca75a74ca2b5e3f4fe7f433a1"
INSTALL_DIR="/opt/prodactive-agent"
BIN_PATH="$INSTALL_DIR/prodactive-agent"
CONFIG_PATH="/etc/prodactive/config.toml"
SERVICE_NAME="prodactive-agent"

if [ "$(id -u)" -ne 0 ]; then
    echo "ERROR: Run with sudo."
    echo "  curl -fsSL '$SERVER_URL/install/script/linux' | sudo bash"
    exit 1
fi

echo ""
echo "  Prodactive Agent Installer (Linux)"
echo "  ==================================="
echo ""

mkdir -p "$INSTALL_DIR" /etc/prodactive

echo "  [1/4] Stopping existing agent..."
systemctl stop "$SERVICE_NAME" 2>/dev/null || true
sleep 1

echo "  [2/4] Downloading agent..."
curl -fsSL -o "$BIN_PATH" "$SERVER_URL/install/download/linux"
chmod +x "$BIN_PATH"
SIZE=$(du -h "$BIN_PATH" | cut -f1)
echo "  Downloaded: $SIZE"

echo "  [3/4] Writing configuration..."
HOSTNAME=$(hostname -s)
cat > "$CONFIG_PATH" << CONF
worker_name = "$HOSTNAME"
api_port = 47842
screenshot_interval_secs = 60
activity_report_interval_secs = 10
screenshot_quality = 75
max_screenshot_dimension = 1920

[cloud]
server_url = "$SERVER_URL"
api_key = "$API_KEY"
push_interval_secs = 10
screenshot_push_interval_secs = 60
CONF
chmod 600 "$CONFIG_PATH"

echo "  [4/4] Installing systemd service..."
cat > "/etc/systemd/system/$SERVICE_NAME.service" << SVC
[Unit]
Description=Prodactive Monitoring Agent
After=network-online.target
Wants=network-online.target

[Service]
Type=simple
ExecStart=$BIN_PATH
Restart=always
RestartSec=10
Environment=DISPLAY=:0

[Install]
WantedBy=multi-user.target
SVC

systemctl daemon-reload
systemctl enable "$SERVICE_NAME"
systemctl start "$SERVICE_NAME"

echo ""
echo "  Installed successfully!"
echo "  Server: $SERVER_URL"
echo "  Agent will start automatically on boot."
echo "  Status: systemctl status $SERVICE_NAME"
echo ""